# Rabbitry Design: Cages, Ventilation, and Waste Management ## Key Takeaways - **Cage flooring is critical for foot health and sanitation:** Utilize 14-gauge galvanized wire with a 1/2 by 1-inch mesh, oriented with the 1/2-inch dimension front-to-back, to prevent foot injuries and facilitate waste passage. - **Ventilation is paramount for respiratory health:** Aim for a complete air exchange every 5-10 minutes in winter and more frequently in summer to mitigate ammonia buildup, which damages respiratory cilia and predisposes rabbits to pasteurellosis. - **Effective waste management hinges on urine-manure separation:** Design systems like sloped drop pans or collection belts to separate dry feces from urine, thereby reducing ammonia production and fly breeding. - **Adequate cage space prevents stress and disease:** Minimum floor space requirements vary by breed size, with a medium breed doe and litter needing at least 8 square feet to avoid issues like sore hocks and behavioral problems. - **Proactive predator and weather protection is essential:** The rabbitry structure must exclude predators like raccoons and rats, and provide adequate insulation and airflow to manage temperature extremes, preventing heat stress above 85°F and chilling from drafts. --- Raising rabbits for meat, fiber, show, or breeding stock requires a housing system that keeps animals healthy and makes daily chores manageable. This guide covers the core decisions in rabbitry design: choosing and building cages, providing proper ventilation, and managing waste in a way that protects rabbit health and simplifies cleanup. It is written for small and medium scale producers who are planning a new rabbitry or upgrading an existing one, and for farm advisers who help producers make those decisions. ## At a Glance - **Cage size matters more than most new owners expect.** A medium breed doe with a litter needs at least 8 square feet of floor space. A buck needs at least 4 square feet. Smaller cages lead to sore hocks, dirty coats, and behavioral problems. - **Wire floors are the standard for commercial and serious hobby rabbitries.** Use 14 gauge galvanized wire with 1/2 by 1 inch mesh for the floor. The wire gauge and mesh size directly affect foot health and cleaning ease. - **Ventilation is the most overlooked part of rabbitry design.** Rabbits produce significant ammonia from urine. Poor airflow causes respiratory disease, poor feed conversion, and increased mortality. Aim for a complete air exchange every 5 to 10 minutes in winter and more in summer. - **Waste management starts with cage design.** A well designed manure drop pan, collection belt, or deep pit system determines whether you spend 10 minutes or 2 hours per day on cleanup. - **Separate the manure from the urine.** Dry manure is nearly odorless and composts easily. Urine is where the ammonia and flies come from. Design for separation from the start. - **Protect rabbits from predators and weather extremes.** A rabbitry needs to keep out raccoons, dogs, rats, and birds, and it needs to keep rabbits cool in summer and dry in winter. - **Plan the building before you buy the rabbits.** The most common mistake is acquiring animals first and then trying to fit housing around them. This leads to overcrowding and poor sanitation. ## Why Rabbitry Design Determines Success Rabbits are sensitive to their environment in ways that many first time owners do not anticipate. They are prey animals, so they respond to stress with physiological changes that affect growth, reproduction, and disease resistance. A poorly designed rabbitry creates constant low grade stress. The animals do not grow as fast, does do not conceive as readily, and kits have higher mortality. The design of the rabbitry affects five critical areas of production. **Health and disease pressure.** Rabbits are highly susceptible to respiratory infections, especially pasteurellosis. This bacterium thrives in environments with high ammonia levels. Ammonia damages the cilia in the rabbit's respiratory tract, making it easier for bacteria to establish infection. A rabbitry with poor ventilation will have a constant low level of respiratory disease that flares up during stress. The same principle applies to foot health. Rabbits housed on wet, soiled floors develop sore hocks, which are painful lesions on the hind feet that can become infected and make breeding and growth difficult. **Labor efficiency.** A rabbitry that is easy to clean and feed takes less time per day. Time spent cleaning cages is time not spent breeding, culling, or marketing. The difference between a well designed waste system and a poor one is often 1 to 2 hours per day for a 50 doe operation. Over a year, that is hundreds of hours. **Production performance.** Rabbits eat more and convert feed more efficiently when they are comfortable. Temperature extremes, drafts, and poor air quality all reduce feed intake. A doe that is heat stressed will eat less, produce less milk, and wean smaller litters. A buck that is too hot may have reduced fertility for several weeks after the heat stress ends. **Predator and pest control.** Rats, mice, raccoons, dogs, and birds of prey all pose threats to rabbits. Rats are especially problematic because they compete for feed, spread disease, and can kill young kits. A rabbitry design that excludes rodents and predators from the start is far easier than trying to control them after they establish a presence. **Biosecurity.** A well designed rabbitry allows for all in all out management of groups, easy disinfection between batches, and separation of sick animals. These are the fundamentals of disease prevention on any livestock operation. ## Cage Design and Construction The cage is the most immediate part of the rabbitry environment. It determines how much space the rabbit has, how its feet are supported, how waste falls away, and how easy the animal is to handle. ### Cage Size and Space Requirements Space requirements vary by breed size and animal class. The following are minimum recommendations for commercial production. Many breeders provide more space, and more space is almost always better for animal welfare and production. | Animal Class | Minimum Floor Space | Minimum Height | |---|---|---| | Small breeds (Netherland Dwarf, Polish), under 4 lb | 3 square feet | 18 inches | | Medium breeds (New Zealand, Californian), 8 to 12 lb | 5 square feet for a single adult, 8 square feet for a doe with litter | 18 to 20 inches | | Large breeds (Flemish Giant, Checkered Giant), over 12 lb | 8 square feet for a single adult, 10 to 12 square feet for a doe with litter | 20 to 24 inches | | Bucks, all breeds | Same as single adult of that breed, often slightly larger | 18 to 24 inches | For a doe with a litter, the space requirement increases because the kits need room to move away from the nest box and to access feed and water. A common commercial cage size for medium breeds is 30 by 36 inches, which gives 7.5 square feet. Many producers prefer 30 by 40 inches for does with litters. The height of the cage matters less than the floor space, but it should be tall enough for the rabbit to sit upright without its ears touching the top. For medium breeds, 18 to 20 inches is adequate. For large breeds, 24 inches is better. ### Cage Flooring The floor is the most important part of the cage for rabbit health. The standard for commercial rabbitries is welded wire mesh with a specific gauge and opening size. **Wire gauge.** Use 14 gauge wire for the floor. This is thick enough to support the rabbit's weight without sagging and to resist corrosion from urine. Thinner wire, such as 16 gauge, will sag and rust more quickly. Thicker wire, such as 12 gauge, is heavier and harder to work with but lasts longer. **Mesh opening size.** The floor mesh should be 1/2 by 1 inch. The 1/2 inch dimension runs front to back, and the 1 inch dimension runs side to side. This size allows manure pellets to fall through while providing enough support for the rabbit's feet. Smaller mesh, such as 1/4 by 1/2 inch, does not allow manure to fall through as easily and holds moisture against the rabbit's feet. Larger mesh, such as 1 by 2 inch, can catch feet and cause injury. **Wire orientation.** The 1/2 inch spacing should run front to back, not side to side. This prevents the rabbit's feet from slipping through the wider spacing and reduces the risk of broken toes. **Floor support.** The floor must be supported underneath to prevent sagging. Use floor supports made of heavier wire or metal strap every 12 to 16 inches. Without support, the floor will sag under the weight of a doe with a litter, creating low spots where waste accumulates. ### Cage Walls and Roof The walls and roof of the cage are typically made of 16 gauge welded wire with 1 by 2 inch mesh. This mesh size keeps kits in and prevents predators from reaching through. Some producers use 1 by 1 inch mesh for the lower portion of the walls to keep newborn kits from escaping, then switch to 1 by 2 inch mesh higher up. The roof of the cage should be solid or covered. A solid roof protects the rabbit from droppings from animals in cages above and from drafts. If cages are stacked, a solid roof on each cage is essential for sanitation. ### Cage Doors and Access The door should be large enough to allow easy access to the entire cage. A door that opens across the full width of the cage front is ideal. This allows you to reach the nest box, feed the rabbit, and catch the rabbit without struggling. The door latch must be secure but easy to operate with one hand. A rabbit that learns to push open a weak latch will escape, and a loose rabbit in a rabbitry can cause significant damage and stress to other animals. ### Cage Materials and Corrosion Galvanized wire is the standard material for rabbit cages. The galvanization protects the wire from corrosion caused by urine and cleaning solutions. However, galvanization wears off over time, especially on the floor where the rabbit's urine and waste are concentrated. To extend the life of cages: - Use heavier gauge wire for the floor, as it has more zinc coating. - Clean cages regularly to reduce the corrosive effect of urine. - Replace floor wire when the galvanization wears through and rust begins. Rust creates rough surfaces that injure feet. - Consider using stainless steel or plastic coated wire for the floor if you expect a long service life, though these are more expensive. ### Nest Boxes Nest boxes are not strictly part of the cage, but they must fit within the cage design. The nest box provides a confined, dark, warm space where the doe can kindle and nurse her kits. A nest box that is too large does not hold heat well. One that is too small restricts the doe and can lead to kits being trampled. For medium breeds, a nest box of about 18 by 10 by 12 inches is standard. The box should have a solid floor and walls, with an opening at one end that the doe can enter. The top should be open or hinged so you can check the kits. The nest box should be placed in the cage about 3 days before the doe is due to kindle. It should be positioned in a corner, away from the door, to give the doe a sense of security. ## [Rabbit Housing Ventilation](/knowledge/animal-farming/rabbits/rabbit-housing-ventilation-design-health-productivity) Ventilation is the single most important environmental factor in rabbitry health, and it is the most commonly neglected. Rabbits produce large amounts of urine, and urine breaks down into ammonia. Ammonia is a gas that is heavier than air. It accumulates at floor level, which is exactly where rabbits live and breathe. ### The Ammonia Problem Ammonia has two major effects on rabbits. First, it damages the respiratory tract. The cilia that line the airways and help clear bacteria and debris are paralyzed and destroyed by ammonia exposure. This leaves the rabbit vulnerable to respiratory infections, especially pasteurellosis. Second, ammonia at high levels reduces feed intake and growth. Rabbits that are constantly exposed to high ammonia eat less and convert feed less efficiently. The human nose is a useful tool for assessing ammonia levels. If you can smell ammonia when you enter the rabbitry, the level is too high for optimal rabbit health. At the levels where ammonia becomes clearly detectable to most people, it is already causing respiratory damage in rabbits. ### Ventilation Rate and Air Exchange The goal of ventilation is to remove ammonia, moisture, and heat, and to bring in fresh air. For a rabbitry, the minimum ventilation rate in cold weather should provide a complete air exchange every 8 to 10 minutes. In warm weather, the rate should be much higher, with a complete exchange every 1 to 3 minutes. To calculate the volume of your rabbitry, multiply the floor area by the ceiling height. For example, a building that is 20 feet by 30 feet with an 8 foot ceiling has a volume of 4,800 cubic feet. For a complete air exchange every 8 minutes in winter, you need a fan capacity of 600 cubic feet per minute (4,800 divided by 8). For a complete exchange every 2 minutes in summer, you need 2,400 cubic feet per minute. ### Ventilation System Design A good ventilation system has two components: air intake and air exhaust. Air must come in from one location and be exhausted from another. If air only exhausts without a planned intake, the building becomes negatively pressurized, which creates drafts and reduces fan efficiency. **Air intake.** In a naturally ventilated rabbitry, air intake comes through open windows, vents, or gaps under the eaves. The intake should be located low on one side of the building, so incoming air sweeps across the floor where the ammonia is concentrated. In a mechanically ventilated building, the intake is often through a ceiling inlet or a wall inlet with a baffle that directs air across the room. **Air exhaust.** Exhaust fans should be located high on the opposite wall or in the roof peak. This creates a cross flow of air from low on one side to high on the other. The fans should be sized to provide the ventilation rates described above. **Fan control.** For winter ventilation, use a thermostat to control the fans. Set the thermostat so the fan runs enough to control humidity and ammonia without dropping the temperature too low. A common approach is to run a small fan continuously at low speed and use a larger fan on a thermostat for warmer periods. **Summer ventilation.** In summer, the goal is to move as much air as possible to help rabbits dissipate heat. Rabbits do not sweat effectively. They rely on panting and on losing heat to the air around them. At temperatures above 80 degrees Fahrenheit, rabbits are heat stressed, and above 85 degrees they are in danger. Moving air helps them cool even when air temperature is high. **Draft control.** While ventilation is essential, direct drafts on the rabbits are harmful. A draft is a stream of cold air moving at high speed. It can cause respiratory disease and chilling, especially for young kits. The solution is to have air enter the building through a baffle or inlet that spreads the air out and slows it down before it reaches the cages. Air movement at cage level should be perceptible but not strong enough to rustle fur or papers. ### Temperature and Humidity Rabbits are most comfortable at temperatures between 50 and 70 degrees Fahrenheit. They tolerate cold better than heat, as long as they are dry and protected from drafts. Heat is the greater danger. Temperatures above 85 degrees can be fatal, especially for pregnant does and young kits. Humidity affects both rabbit comfort and disease pressure. High humidity, above 70 percent, makes it harder for rabbits to cool themselves and promotes the growth of bacteria and fungi in the bedding and waste. Low humidity, below 30 percent, dries out the respiratory tract and makes rabbits more susceptible to respiratory disease. A relative humidity of 50 to 70 percent is ideal. ### Ventilation and Waste Management Connection Ventilation and waste management are linked. If waste is removed frequently and kept dry, the ammonia load on the ventilation system is reduced. A rabbitry with a well designed waste system needs less ventilation in winter to control ammonia. This saves heat and reduces fuel costs. Conversely, a rabbitry where waste accumulates under the cages for weeks at a time requires aggressive ventilation year round, which is expensive in winter. ## Rabbit Waste Management Rabbits produce two types of waste: feces (manure pellets) and urine. These are very different materials with different management needs. Rabbit manure is dry, relatively odorless, and high in nitrogen, phosphorus, and potassium. It is an excellent soil amendment and can be composted or applied directly to gardens and fields. Rabbit urine is high in ammonia and nitrogen. It is the source of most of the odor and fly problems in a rabbitry. The design goal is to separate the manure from the urine as much as possible, and to remove both from the rabbitry on a regular schedule. ### Dropping Collection Systems There are three main systems for collecting waste under cages: drop pans, collection belts, and deep pits. **Drop pans.** Individual pans are placed under each cage or each row of cages. Pans are typically made of galvanized steel, plastic, or fiberglass. They should be sized to catch all the waste from the cage above, with a slight slope so liquids drain to one corner. Drop pans are the simplest system and work well for small rabbitries with fewer than 20 cages. They require daily or every other day emptying. The pans must be cleaned regularly to prevent ammonia buildup. A common mistake is letting pans sit too long, which creates a concentrated ammonia source right under the rabbits. To make drop pans easier to clean, line them with newspaper or a thin layer of sawdust or peat moss. This absorbs urine and makes the pan contents easier to dump. Some producers use a shallow layer of [cat litter](/knowledge/veterinary-medicine/clinical-methods/cat-litter) or diatomaceous earth to control odor and flies. **Collection belts.** A collection belt is a continuous belt that runs under a row of cages. The belt moves slowly, carrying waste to one end where it is scraped into a collection bin or cart. Belts are common in larger commercial rabbitries. Collection belts are more efficient than drop pans for operations with more than 50 does. They reduce daily labor and allow waste to be removed once per day or less. The belt must be made of a material that resists corrosion from urine, such as heavy duty plastic or coated fabric. Belts need regular inspection to ensure they are tracking properly and not sagging. **Deep pits.** A deep pit is a space below the cages where waste falls and accumulates for weeks or months before removal. The pit is typically 3 to 6 feet deep. Waste falls through the wire floor and lands in the pit. Deep pits work well in warm climates where the waste can dry quickly and where the pit can be cleaned with a front end loader or skid steer. The pit must be well ventilated to prevent ammonia buildup, and flies can be a significant problem. In cold, humid climates, deep pits become wet and sloppy, which creates a severe ammonia and fly problem. If you use a deep pit, slope the floor of the pit to a drain or to a low point where liquids can be removed. Keep the pit as dry as possible. Sprinkle diatomaceous earth or agricultural lime on the pit surface to control flies and odor. ### Urine Management Urine is the main challenge in rabbit waste management. It is high in nitrogen and ammonia and is corrosive to metal and concrete. Urine management options include: **Absorbent bedding in pans.** As described above, lining drop pans with an absorbent material controls odor and makes cleaning easier. **Drainage to a collection point.** In a sloped floor rabbitry, urine can be washed or drained to a central collection point. This requires a floor that is properly sloped and a drain system that does not clog with manure. The collected urine can be diluted and applied to fields as fertilizer. **Urine collection in pans with a drain.** Some drop pans are designed with a small drain hole at the low corner. A hose or pipe carries urine to a collection container. The solid manure stays in the pan and is removed separately. This system works well but requires pans that are properly sloped and a drain system that does not clog. ### Manure Storage and Composting Rabbit manure can be used directly as a garden fertilizer, but it is best to compost it first. Composting reduces the volume, kills pathogens and weed seeds, and makes the nutrients more available to plants. To compost rabbit manure: 1. Collect the manure in a bin or pile that is at least 3 feet by 3 feet by 3 feet. This size generates enough heat for proper composting. 2. Mix the manure with a carbon source such as straw, wood shavings, or dry leaves. The ratio should be roughly 1 part manure to 1 to 2 parts carbon material by volume. 3. Keep the pile moist but not wet. It should feel like a wrung out sponge. 4. Turn the pile every 1 to 2 weeks to aerate it and speed decomposition. 5. The compost is ready when it is dark, crumbly, and has an earthy smell. This takes 2 to 4 months in warm weather. Store manure away from the rabbitry to reduce fly and odor problems. A covered bin or a location at least 50 feet from the rabbitry is ideal. ### Fly Control Flies are a major problem in rabbitries. They breed in wet manure and urine, and they can spread disease between cages and between animals. Fly control starts with waste management. - Remove waste frequently. Flies need 5 to 7 days to complete their life cycle in manure. Removing waste every 2 to 3 days breaks the cycle. - Keep waste dry. Flies need moisture to breed. A dry manure pile produces few flies. - Use fly traps and baits around the rabbitry. Place them away from the cages to attract flies away from the rabbits. - Consider using biological controls such as parasitic wasps that attack fly pupae. These are available from biological supply companies. - Keep the area around the rabbitry clean. Remove spilled feed, weeds, and standing water. ### Waste Management Schedule A practical waste management schedule for a small to medium rabbitry: - **Daily:** Check all cages for soiled areas, remove any wet bedding or manure that has accumulated on cage floors, empty drop pans if they are close to full, and check that the waste collection system is working. - **Every 2 to 3 days:** Empty all drop pans or advance collection belts. Clean any pans that have urine buildup. - **Weekly:** Scrub and disinfect any pans or belts that are heavily soiled. Remove waste from the collection area and take it to the compost pile. - **Monthly:** Deep clean the entire rabbitry, including washing walls, floors, and cage supports. Inspect the ventilation system and clean fan blades and intake vents. ## Rabbit Barn Plans and Building Design The building that houses the rabbitry must work with the cage and waste systems. The building design affects ventilation, temperature control, light, and ease of cleaning. ### Building Location Place the rabbitry on well drained ground. A building on wet ground will have humidity problems year round. Orient the building so the long axis runs east to west. This allows you to manage sun exposure on the long walls. In hot climates, shade the west wall to reduce afternoon heat gain. Locate the rabbitry away from other livestock buildings if possible. Rabbits are sensitive to respiratory diseases that can be carried by other species, especially poultry and pigs. A distance of at least 50 feet is recommended. ### Building Size and Layout Allow enough room to work comfortably. A common layout has a central aisle with cages on both sides. The aisle should be at least 3 feet wide, and 4 feet is better. This allows room for a wheelbarrow or cart and for you to work without being cramped. For a rabbitry with 20 to 50 does, a building of 20 by 30 feet is a reasonable starting point. This provides room for cages, a small feed storage area, and a work area. ### Building Materials The building should be easy to clean and resistant to moisture and ammonia. Concrete floors are ideal. They are easy to wash and do not absorb urine. If a concrete floor is not feasible, use a heavy plastic or rubber mat over a compacted gravel base. Walls can be wood, metal, or concrete block. Whatever the material, the interior should be sealed or painted with a moisture resistant coating. This makes cleaning easier and reduces the absorption of ammonia and odors. The roof should be insulated to reduce heat gain in summer and heat loss in winter. Insulation also reduces condensation on the ceiling, which can drip onto the rabbits and create wet conditions. ### Lighting Rabbits do not require specific light levels for production, but lighting is important for the people working in the rabbitry. Provide enough light to see the rabbits clearly, to check for signs of illness, and to clean effectively. Natural light through windows is good, but direct sunlight on cages can cause heat stress. Use translucent panels or place windows high on the walls to diffuse light. A simple lighting plan is one 4 foot LED shop light per 100 square feet of floor space. This provides adequate light for most tasks. ### Feed and Water Storage Store feed in a clean, dry area within or adjacent to the rabbitry. Use rodent proof containers such as metal or heavy plastic bins with tight fitting lids. Do not store feed on the floor. Keep it on pallets or shelves to protect it from moisture and rodents. Water is essential for rabbit health, especially for lactating does. Provide a reliable water supply. Automatic watering systems are convenient but require regular inspection to ensure nipples are not leaking or clogged. Water bottles are labor intensive but allow you to monitor each rabbit's water intake. A combination of both systems is common. ## Step by Step Guide to Designing Your Rabbitry This section walks through the process of designing a rabbitry from scratch. Follow these steps in order. **Step 1: Determine your production goals.** How many does will you keep? What breed? Are you raising rabbits for meat, for breeding stock, or for show? Your goals determine the number of cages, the cage sizes, and the building size. For meat production, a common starting point is 10 to 20 does. This provides a modest income and allows you to learn the system. For a commercial operation, 100 or more does is typical. For show or breeding stock, you may need fewer animals but more space per animal. **Step 2: Calculate the number of cages you need.** You need one cage for each doe, plus cages for bucks, grow out animals, and a quarantine area. A simple formula: - One cage per doe - One cage for each buck (you need one buck for every 10 to 15 does) - Grow out cages for weaned kits. Plan for 1 grow out cage per 4 to 6 kits, depending on breed size. - One or two quarantine cages for new animals or sick animals For a 20 doe operation, you might have 20 doe cages, 2 buck cages, 8 to 10 grow out cages, and 2 quarantine cages. Total of 32 to 34 cages. **Step 3: Choose your cage system.** Decide between single tier and multi tier cages. Single tier cages are easier to manage and cleaner, but they use more floor space. Multi tier cages increase capacity but make cleaning and inspection more difficult. The lower tier of a multi tier system is harder to clean and has poorer air quality. For a small operation, single tier is recommended. For a larger operation, two tiers are acceptable if the building has good ventilation and you are willing to spend more time cleaning. **Step 4: Design the waste collection system.** Based on your operation size and building design, choose between drop pans, collection belts, or a deep pit. For most small and medium operations, drop pans are the best choice. They are simple, inexpensive, and easy to maintain. **Step 5: Plan the ventilation system.** Calculate the building volume and determine the fan capacity needed for winter and summer ventilation. Plan the air intake and exhaust locations. Decide whether you will use natural ventilation, mechanical ventilation, or a combination. **Step 6: Design the building layout.** Sketch the floor plan with the aisle, cage locations, feed storage, and work area. Make sure you have enough room to move animals, clean cages, and store supplies. Consider the flow of work: where will you bring in feed, where will you take out waste, where will you process animals for sale? **Step 7: Build or purchase cages.** You can build cages from welded wire or purchase commercial cages. Building cages requires wire cutters, pliers, and some skill with wire work. Commercial cages are more expensive but are often better constructed and last longer. Whichever you choose, make sure the floor is 14 gauge wire with 1/2 by 1 inch mesh. **Step 8: Install the cages and systems.** Install the cages first, then the waste collection system, then the ventilation system. Make sure everything is secure and that you can easily access all parts of the cage for cleaning and inspection. **Step 9: Test the system before adding rabbits.** Run the ventilation system and check air movement. Test the waste collection system by placing a small amount of manure in the cages and watching how it falls through. Make any adjustments before adding animals. **Step 10: Add rabbits and monitor.** Start with a small number of animals and monitor them closely for the first few weeks. Watch for signs of respiratory distress, sore hocks, and behavioral problems. Adjust the environment as needed. ## Common Rabbitry Design Mistakes These are the most frequent errors in rabbitry design. Avoid them and you will save yourself significant trouble. **Overcrowding.** The most common mistake is keeping too many rabbits in too little space. Overcrowding leads to stress, aggression, dirty cages, and disease. It also makes cleaning and inspection harder. Follow the space guidelines in this article and do not be tempted to push more animals into the same space. **Poor floor wire.** Using the wrong gauge or mesh size for the floor is a critical error. Thin wire sags and rusts quickly. Large mesh catches feet and causes injury. Small mesh holds manure and moisture against the feet. Use 14 gauge wire with 1/2 by 1 inch mesh. **Ignoring ammonia.** If you can smell ammonia, the rabbits are already being harmed. Do not get used to the smell. Fix the ventilation and waste management system until the ammonia is not detectable. **Inadequate summer cooling.** Rabbits tolerate cold much better than heat. A rabbitry that is comfortable in winter can be deadly in summer. Plan for summer ventilation and cooling from the start. **Drafty winter conditions.** While ventilation is essential, direct drafts on the rabbits are harmful. A draft that rustles fur or feels cold on your face is too strong. Use baffles and diffusers to spread incoming air. **Letting waste accumulate.** Waste that sits under cages for weeks creates ammonia, flies, and disease. Design the waste system for easy and frequent removal. **Using absorbent bedding on wire floors.** Bedding on a wire floor holds moisture against the rabbit's feet and creates a breeding ground for bacteria. If you must use bedding, use it only in nest boxes and change it frequently. **Poor access for cleaning.** Cages that are hard to reach will not be cleaned properly. Make sure every cage is accessible from the aisle and that you can reach all parts of the cage with your cleaning tools. **Ignoring predator protection.** Rats, raccoons, and dogs will find your rabbits. Use hardware cloth or heavy wire mesh on all openings. Make sure doors close securely. **Starting too big.** A common mistake is building a large rabbitry and filling it with animals before learning the basics. Start small, master the system, then expand. ## Monitoring and Recordkeeping A good rabbitry design includes a system for monitoring animal health and production. Regular monitoring helps you catch problems early and make informed management decisions. ### Daily Monitoring Walk through the rabbitry at least once per day, preferably twice. Look at each rabbit and check for: - Feed and water intake. A rabbit that is not eating or drinking is in trouble. - Fecal output and consistency. Normal rabbit feces are round, dry pellets. Soft or runny feces indicate digestive problems. - Urine output and color. Normal rabbit urine can range from clear to dark yellow to orange. Thick, cloudy urine can indicate infection. - Respiratory signs. Listen for sneezing, coughing, or noisy breathing. Check for nasal discharge. - Eye and nose discharge. Clear discharge is concerning, thick white or yellow discharge is a sign of infection. - Coat condition. A dull, rough coat indicates poor health or poor nutrition. - Foot condition. Check for sore hocks, especially on heavy rabbits and rabbits on wet floors. - Behavior. A rabbit that is lethargic, hunched, or isolated from its cage mates is likely sick. ### Weekly Monitoring Once per week, do a more thorough check: - Weigh a sample of growing rabbits to track growth rates. - Check does for signs of pregnancy or kindling. - Check kits for growth and development. - Inspect the ventilation system and clean fans and intakes. - Check the waste collection system for leaks or clogs. ### Monthly Recordkeeping Keep simple records that help you track production and identify problems. At minimum, record: - Number of does bred and kindled each month - Number of kits born and weaned per litter - Weaning weights - Mortality rates by age group - Feed consumption - Any health problems or treatments These records help you identify trends. For example, if weaning weights are declining, you may have a nutrition problem. If mortality spikes in summer, you have a heat stress problem. ### Decision Thresholds Some problems can be managed with adjustments to housing or management. Others require professional help. The following are general guidelines. **Call a veterinarian if:** - A rabbit is severely ill, injured, or in distress. Signs include refusal to eat, severe diarrhea, labored breathing, or inability to stand. - You have multiple rabbits sick at the same time. This suggests an infectious disease outbreak. - A doe is having difficulty kindling or has not kindled 32 to 35 days after breeding. - You suspect a disease that could be reportable or zoonotic, such as tularemia or rabies. - You are unsure about a diagnosis or treatment. **Call an extension agent or agricultural adviser if:** - You are planning a new rabbitry and want a design review. - You have questions about feed formulations or nutrition. - You want help developing a biosecurity plan. - You are considering scaling up your operation and need business planning assistance. - You have questions about manure management and environmental regulations. **Make management changes if:** - Ammonia is detectable at nose level. Improve ventilation or waste removal. - Sore hocks appear. Check floor wire, add a resting board, or improve cleaning. - Weaning weights are below breed standards. Review nutrition and litter size. - Fly populations are high. Improve waste removal and use fly controls. - Mortality increases. Review the environment, nutrition, and biosecurity. ## When to Call a Veterinarian or Extension Agent Knowing when to seek professional help is part of good animal husbandry. Many rabbit health problems can be managed with good husbandry, but some require professional diagnosis and treatment. **Veterinary care is needed for:** - Any rabbit that is severely ill or in pain - A disease outbreak affecting multiple animals - Reproductive emergencies such as dystocia (difficult birth) - Suspected notifiable diseases - Any condition that does not improve with basic supportive care within 24 to 48 hours **Extension agents and agricultural advisers can help with:** - Rabbitry design and layout - Business planning and marketing - Feed formulation and nutrition - Manure management and composting - Regulatory compliance - Connecting you with other producers and industry resources When you call a professional, be prepared to provide: - The number of animals affected - The age and breed of affected animals - A description of clinical signs - When the signs first appeared - Any recent changes to feed, housing, or management - Your records on feed intake, water intake, and mortality ## Frequently Asked Questions **How much space does a rabbit need in a cage?** A medium breed rabbit, around 8 to 12 pounds, needs at least 5 square feet of floor space for a single adult. A doe with a litter needs at least 8 square feet. Small breeds under 4 pounds need about 3 square feet. Large breeds over 12 pounds need 8 square feet for a single adult and 10 to 12 square feet for a doe with a litter. These are minimums. More space is almost always better for rabbit health and welfare. **What is the best wire mesh for rabbit cage floors?** The best floor wire is 14 gauge galvanized welded wire with 1/2 by 1 inch mesh. The 1/2 inch dimension runs front to back and the 1 inch dimension runs side to side. This size allows manure to fall through while providing good support for the rabbit's feet. Thinner wire sags and rusts quickly. Larger mesh can catch feet and cause injury. **How often should I clean rabbit cages?** The frequency depends on your waste collection system. With drop pans, empty the pans every 2 to 3 days to control ammonia and flies. With a collection belt, advance the belt daily or every other day. With a deep pit, clean the pit when it is about two thirds full, which may be every 2 to 4 weeks. Regardless of the system, remove any soiled bedding or manure from the cage floor daily. **How do I control ammonia smell in my rabbitry?** Ammonia comes from urine. Control it by removing waste frequently, keeping waste dry, and providing adequate ventilation. If you can smell ammonia, the level is too high. Increase ventilation, clean waste more often, and consider using an absorbent material in drop pans. In winter, you may need to balance ventilation with heating, but ammonia control is essential for rabbit health. **What temperature is best for rabbits?** Rabbits are most comfortable between 50 and 70 degrees Fahrenheit. They tolerate cold well as long as they are dry and protected from drafts. Heat is the greater danger. Temperatures above 85 degrees cause significant heat stress and can be fatal. In hot weather, provide shade, ventilation, and access to cool water. Some producers use frozen water bottles or ceramic tiles in cages to help rabbits cool down. **Do rabbits need a wire floor or a solid floor?** Wire floors are standard for commercial and serious hobby rabbitries because they allow waste to fall through and keep the rabbit clean and dry. Solid floors require frequent cleaning to prevent the rabbit from sitting in its own waste, which causes sore hocks and other health problems. If you use a solid floor, you must clean it daily and provide clean bedding. **How do I keep flies away from my rabbitry?** Fly control starts with waste management. Remove waste every 2 to 3 days to break the fly breeding cycle. Keep waste dry, as flies need moisture to breed. Use fly traps and baits placed away from the cages. Consider biological controls such as parasitic wasps. Keep the area around the rabbitry clean and free of spilled feed and standing water. **Can I use rabbit manure in my garden?** Yes, rabbit manure is an excellent garden fertilizer. It is high in nitrogen, phosphorus, and potassium. It can be applied directly to the garden, but it is best to compost it first. Composting reduces volume, kills pathogens and weed seeds, and makes nutrients more available to plants. Mix the manure with a carbon source such as straw or leaves and compost for 2 to 4 months. **How many rabbits can I keep in a 10 by 10 foot shed?** A 10 by 10 foot shed has 100 square feet of floor space. With a central aisle, you might have about 40 square feet of cage space on each side. With single tier cages for medium breeds, you could fit about 16 to 20 doe cages in this space. However, you also need room for feed storage, a work area, and access for cleaning. A more realistic number is 10 to 15 does in a 10 by 10 foot shed. Overcrowding causes health and management problems. **What is the best way to stack rabbit cages?** If you stack cages, use a two tier system. The top tier should be no higher than chest level so you can easily see and reach the rabbits. The bottom tier should be at least 18 inches off the floor to allow for cleaning and to keep rabbits away from floor drafts. Always put a solid tray or pan between tiers to prevent waste from falling onto rabbits below. The bottom tier will have poorer air quality and is harder to clean, so check these rabbits more carefully. ## Related Farming Guides This section will be populated with links to related farming guides on [rabbit care](/knowledge/veterinary-medicine/exotic-small-animals/rabbit-care-dental-malocclusion-and-incisor-trimming-procedure), small livestock management, and farm facility design. Check back for updates. ## Related Clinical & Scientific Guides * [Animal Welfare Audits: Building a Useful Farm Program](/knowledge/animal-farming/farm-management/animal-welfare-audits-building-a-useful-farm-program) * [Total Mixed Ration (TMR) for Dairy: Mixing and Feeding Management](/knowledge/animal-farming/farm-management/total-mixed-ration-dairy-mixing-feeding) * [Feed Additives for Livestock: Probiotics, Enzymes, and More](/knowledge/animal-farming/farm-management/feed-additives-livestock-probiotics-enzymes) ## References - [USDA Farm Management](https://www.farmers.gov/) - [FAO Farm Management](https://www.fao.org/farmer-field-schools/en/) - [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) - [WOAH (World Organisation for Animal Health)](https://www.woah.org/en/home/) > This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.