Broiler Feed Formulation Basics: Balancing Energy and Protein

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-14

Key Takeaways

• Broiler feed formulation is critical for growth rate and feed conversion, with protein and energy being the primary considerations. Starter rations require higher crude protein (22-24%) and a narrower calorie to protein ratio (120-130 kcal ME/%) compared to finisher rations (18-20% crude protein, 150-170 kcal ME/%).
• Corn and soybean meal are foundational ingredients, but their nutrient profiles vary; formulation must be based on accurate nutrient analysis of specific ingredients, not just percentages, to ensure adequate essential amino acids like lysine and methionine.
• The energy-to-protein ratio is paramount; insufficient energy forces increased feed intake, leading to protein wastage, while excessive energy can reduce intake of other essential nutrients.
• Accurate weighing of all ingredients, including vitamin and mineral premixes and synthetic amino acids, is essential to avoid nutrient deficiencies or excesses, with poor mixing being a common cause of imbalanced diets.
• Monitoring bird performance (growth rate, feed conversion, mortality) and feed intake is crucial for identifying potential ration imbalances, with deviations from expected performance often indicating nutritional issues.
• Calcium and phosphorus balance, with an approximate 2:1 ratio of calcium to available phosphorus, is vital for skeletal development, and deficiencies or excesses can lead to leg problems and metabolic disturbances.

Feed is the single largest cost in broiler production, often accounting for 60 to 70 percent of total operating expenses. Getting the balance of energy and protein right determines growth rate, feed conversion, bird health, and your bottom line. This guide explains the fundamentals of broiler feed formulation for small to medium scale producers, farm managers, and anyone new to mixing their own rations. You will learn how to understand the energy and protein needs of broilers at different growth stages, how to select and combine feed ingredients, how to calculate a balanced ration, and how to avoid the most common formulation mistakes.

At a Glance

• Broilers need a high protein starter ration (22 to 24 percent crude protein) for the first 14 to 21 days, followed by a grower ration (20 to 22 percent) and a finisher ration (18 to 20 percent).
• Energy requirements increase as birds age, while protein requirements as a percentage of the diet gradually decrease.
• The ideal calorie to protein ratio changes across growth stages. Starter rations typically use 120 to 130 calories of metabolizable energy per percent of protein, while finisher rations use 150 to 170 calories per percent.
• Corn and soybean meal form the backbone of most broiler rations worldwide. Local ingredients can replace part of these, but every substitution changes the nutrient profile.
• Always formulate on a nutrient basis, not a percentage of ingredient basis. A ration that looks right on paper can be deficient or excessive once you calculate the actual nutrients.
• Weigh ingredients accurately. A scale that measures in grams or ounces is essential, even for small batches.
• Keep detailed records of every batch you mix, including ingredient weights, calculated nutrients, bird performance, and any problems observed.
• Consult a poultry nutritionist or extension agent before making major changes to your ration, especially if you are raising birds for a commercial contract.

Understanding Broiler Nutrient Requirements

Broilers are bred for rapid growth and efficient feed conversion. Modern strains can reach market weight in as little as 5 to 7 weeks, depending on the target weight and the production system. This rapid growth places intense demands on the bird's metabolism. Every nutrient in the ration must be present in the right amount and in a form the bird can digest.

Why Energy Matters

Energy is the fuel that drives every bodily function in a broiler. Birds use energy to maintain body temperature, support organ function, move around, and build new tissue. The energy in feed comes primarily from carbohydrates, fats, and to a lesser extent, protein. In practical poultry nutrition, energy is measured as metabolizable energy, which represents the energy the bird actually uses after losses in feces and urine. Metabolizable energy is expressed in kilocalories per kilogram of feed or sometimes in kilocalories per pound.

Broilers need increasing amounts of energy as they grow. A day old chick has a small digestive system and a high metabolic rate. It needs a diet that is energy dense enough to support rapid early growth but not so energy dense that it consumes too much fat. As the bird grows, its maintenance energy needs increase, and it can handle more energy in the diet. Finisher rations are typically higher in energy than starter rations, often through added fats or oils.

Energy levels that are too low force the bird to eat more feed to meet its energy needs. This can lead to slower growth and poorer feed conversion. Energy levels that are too high can cause birds to eat less feed overall, which may reduce their intake of other essential nutrients. The key is to maintain the correct balance between energy and all other nutrients.

Why Protein Matters

Protein provides the amino acids that broilers need to build muscle, feathers, skin, and internal organs. Chickens do not have a true protein requirement. They have requirements for specific amino acids, most notably lysine, methionine, and threonine. When nutritionists talk about crude protein, they are measuring the total nitrogen content of the feed, which includes the amino acids the bird can use plus some non protein nitrogen.

Amino acids are often described as the building blocks of protein. Broilers cannot synthesize certain amino acids fast enough to support rapid growth, so these must be supplied in the diet. These are called essential amino acids. Lysine and methionine are usually the first limiting amino acids in corn soybean diets. This means they are present in the lowest amounts relative to the bird's needs. If either is deficient, growth slows even if total protein is adequate.

The Energy to Protein Ratio

The relationship between energy and protein is more important than either nutrient alone. Birds eat primarily to satisfy their energy needs. If a ration is high in energy, birds eat less feed. If that feed does not contain enough protein relative to the energy, the bird will not get enough amino acids. Conversely, if a ration is low in energy, birds eat more feed and may consume more protein than they need, which is wasteful and can increase nitrogen excretion.

The calorie to protein ratio expresses this relationship. It is calculated by dividing the metabolizable energy of the diet in kilocalories per kilogram by the percent crude protein. For example, a starter diet with 3000 kilocalories per kilogram and 22 percent protein has a calorie to protein ratio of about 136. A finisher diet with 3200 kilocalories per kilogram and 19 percent protein has a ratio of about 168.

As broilers age, the ideal calorie to protein ratio widens. Young birds need a narrow ratio with relatively more protein. Older birds need a wider ratio with relatively more energy. Understanding this principle helps you adjust rations as your birds grow and helps you troubleshoot problems when growth is poor.

Broiler Feed Ingredients and Their Roles

The ingredients you choose determine the nutrient content of your ration and its cost. Most broiler rations around the world rely on a few staple ingredients, with local alternatives used where they are more available or cheaper. Understanding the strengths and limitations of each ingredient helps you make better purchasing and formulation decisions.

Cereal Grains as Energy Sources

Corn is the standard energy source in broiler rations in many parts of the world. It is palatable, contains highly digestible starch, and provides some essential fatty acids. Whole corn is about 8 to 9 percent crude protein, but its protein is low in lysine and tryptophan. Corn also supplies a yellow pigment that gives broiler skin and fat the yellow color preferred in some markets.

Wheat is a common alternative or supplement to corn. It has slightly higher protein than corn but contains arabinoxylans, a type of fiber that can increase gut viscosity in young birds. Wheat is often included at 10 to 30 percent of the diet, sometimes with the addition of enzymes called xylanases to improve digestibility.

Sorghum, also called milo, is used in drier regions where corn does not grow well. It has a nutrient profile similar to corn but contains tannins that can reduce protein digestibility in some varieties. Low tannin sorghum varieties are preferred for poultry feed.

Barley and oats are lower in energy than corn and contain fiber that is poorly digested by poultry. They are sometimes used in small amounts in grower and finisher diets but are rarely suitable as the primary energy source for fast growing broilers.

Oilseed Meals as Protein Sources

Soybean meal is the gold standard protein source for poultry. It contains 44 to 48 percent crude protein depending on whether the hulls have been removed. Soybean meal has an excellent amino acid profile, high digestibility, and consistent quality. Full fat soybeans can be used but must be heat treated to destroy trypsin inhibitors that interfere with protein digestion.

Canola meal is a byproduct of canola oil extraction and contains about 36 to 38 percent crude protein. It has a good amino acid profile but contains glucosinolates that can affect thyroid function if used at high levels. Most nutritionists limit canola meal to 10 to 15 percent of the diet.

Sunflower meal is another option, typically containing 28 to 40 percent protein depending on how much of the hull is removed. It is high in fiber and low in lysine, so it is usually limited to 10 percent or less of the ration.

Peanut meal, cottonseed meal, and sesame meal are used in some regions. Cottonseed meal contains gossypol, a compound that can be toxic to poultry, so it must be used carefully and only in limited amounts. Peanut meal can be contaminated with aflatoxins, so sourcing and storage quality are critical.

Fats and Oils

Added fats and oils increase the energy density of the ration and improve palatability. Common sources include vegetable oils such as soybean oil, canola oil, and palm oil, as well as animal fats such as poultry fat and tallow. Fats also provide essential fatty acids and help absorb fat soluble vitamins.

Adding 1 to 3 percent fat to a broiler ration is common in finisher diets. Higher levels are possible but require careful attention to feed quality. Fats can become rancid, and oxidized fats destroy vitamins and reduce palatability.

Vitamin and Mineral Premixes

Even a well balanced grain and protein meal ration will be deficient in several vitamins and minerals. A complete vitamin and mineral premix is essential for broiler health and growth. Premixes contain vitamins A, D, E, K, the B complex vitamins, and minerals such as calcium, phosphorus, sodium, zinc, manganese, iron, copper, iodine, and selenium.

Calcium and phosphorus deserve special attention because they are needed in relatively large amounts and must be in the correct ratio. Broiler rations typically contain 0.9 to 1.0 percent calcium and 0.45 to 0.50 percent available phosphorus. Limestone or oyster shell supplies calcium, while dicalcium phosphate or monocalcium phosphate supplies both calcium and phosphorus.

Salt provides sodium and chloride. Salt is typically added at 0.3 to 0.5 percent of the diet. A deficiency of sodium causes poor growth and can lead to cannibalism in severe cases.

Amino Acid Supplements

Synthetic amino acids allow nutritionists to meet the bird's amino acid requirements without oversupplying total protein. Lysine and methionine are the most commonly used supplements. Methionine is often added to corn soybean diets because corn is low in this amino acid. Threonine is also available and is sometimes added to reduce the cost of the ration.

Using synthetic amino acids can reduce the total protein content of the diet, which lowers nitrogen excretion and reduces the cost of the ration. However, you cannot replace all protein with synthetic amino acids. The bird still needs intact protein for optimal digestion and health.

Step by Step Guide to Broiler Ration Formulation

Formulating a balanced broiler ration does not require a degree in animal nutrition, but it does require care, accurate information, and basic math. The following steps will help you build a ration that meets your birds' needs at each growth stage.

Step 1: Determine the Target Nutrient Levels

Before you can formulate a ration, you need to know what you are aiming for. The nutrient requirements of broilers are published by breed companies and agricultural universities. These tables give recommended levels of metabolizable energy, crude protein, essential amino acids, calcium, phosphorus, and other nutrients for each growth stage.

For a typical broiler production cycle, use these general targets as a starting point:

These are general ranges. Check the specific recommendations for your bird strain and your target market weight. Breeder company guidelines are the most reliable source for your particular birds.

Step 2: Get Accurate Nutrient Values for Your Ingredients

You cannot formulate a balanced ration if you do not know the nutrient content of your ingredients. Use published feed tables as your starting point, but be aware that actual values vary with growing conditions, processing, and storage.

The most commonly used feed tables include those published by the National Research Council and various agricultural universities. Many feed companies and extension services also publish local feed ingredient tables. These tables give average values for metabolizable energy, crude protein, amino acids, calcium, phosphorus, and other nutrients.

For the most accurate results, consider sending feed ingredient samples to a laboratory for analysis. This is especially important for protein meals, which can vary significantly in quality. Moisture content also affects nutrient values, so adjust your calculations if your ingredients are wetter or drier than the table values.

Step 3: Use the Pearson Square for Simple Rations

The Pearson square is a simple method for balancing two ingredients to meet a single nutrient target. It is most useful for small producers who want to mix a ration with just two or three ingredients. The method works by calculating how much of each ingredient is needed to achieve a target nutrient level.

To use the Pearson square, draw a square and write the target nutrient value in the center. Write the nutrient value of one ingredient in the upper left corner and the other ingredient in the lower left corner. Subtract diagonally and take the absolute value of each difference. These numbers tell you the proportion of each ingredient to use.

For example, suppose you want to mix corn at 9 percent protein with soybean meal at 48 percent protein to achieve a 22 percent protein ration. The Pearson square gives you 26 parts of soybean meal and 13 parts of corn. This translates to about 67 percent corn and 33 percent soybean meal.

The Pearson square has limits. It can only balance one nutrient at a time, and it does not account for vitamins, minerals, or amino acids. Use it as a starting point, then check your ration for other nutrients.

Step 4: Use a Spreadsheet for Complete Rations

For a complete ration that meets all nutrient requirements, a spreadsheet is the most practical tool. You can set up a simple spreadsheet that lists each ingredient, its nutrient values, and the amount used. The spreadsheet calculates the total nutrients in the ration and compares them to your targets.

Start with a trial ration based on typical inclusion rates. A standard corn soybean broiler starter might look like this:

Adjust the ingredient amounts until the calculated nutrient levels match your targets. Change one ingredient at a time and recalculate after each change. This trial and error process is how professional nutritionists develop rations, just on a more sophisticated level.

Step 5: Check the Amino Acid Profile

Meeting the crude protein target is not enough. You must also check that the essential amino acids are present in adequate amounts. Lysine and methionine are usually the first limiting amino acids, but threonine, tryptophan, and others also matter.

Use your spreadsheet to calculate the lysine, methionine, methionine plus cystine, threonine, and tryptophan levels in your ration. Compare these to the requirements for your birds' growth stage. If any amino acid is deficient, add the synthetic form or adjust your ingredient mix.

Pay special attention to methionine. Corn soybean diets are often adequate in lysine but marginal in methionine. Adding 0.1 to 0.2 percent synthetic methionine is common in broiler rations.

Step 6: Balance Calcium and Phosphorus

Calcium and phosphorus are critical for bone development and many metabolic functions. The ratio of calcium to available phosphorus should be approximately 2 to 1. Too much calcium can interfere with phosphorus absorption, and too little calcium causes leg problems and poor growth.

Calculate the calcium and available phosphorus in your ration. If you are using the Pearson square or a simple spreadsheet, you may need to add dicalcium phosphate and limestone to meet these requirements. Dicalcium phosphate provides both calcium and phosphorus. Limestone or oyster shell provides calcium only.

Step 7: Mix the Ration Correctly

Once your formulation is complete, you must mix it correctly. Poor mixing is a common cause of nutrient deficiencies even when the formulation is correct. The vitamin premix, salt, and other trace ingredients must be distributed evenly throughout the entire batch.

If you are mixing a small batch in a bucket or wheelbarrow, use the geometric dilution method. Mix the small ingredients such as vitamins, minerals, and amino acids with a small amount of corn or soybean meal first. Then add this premix to the larger batch and mix thoroughly. Mixing small ingredients directly into a large batch often results in uneven distribution.

For larger batches, a horizontal or vertical feed mixer is recommended. Mix for the time specified by the equipment manufacturer. Overmixing can cause ingredient separation, just as undermixing can leave pockets of concentrated vitamins or minerals.

Step 8: Check the Final Ration

Before feeding a new batch, check the ration visually and by smell. Good feed should have a uniform appearance and a fresh, pleasant odor. Mold, mustiness, or rancidity indicate a quality problem. Do not feed moldy or rancid feed to your birds.

You can also have a sample of your mixed feed analyzed by a laboratory. This is the most reliable way to confirm that your ration meets your targets. Feed analysis is especially valuable if your birds are not performing as expected.

Common Mistakes in Broiler Ration Formulation

Even experienced producers make formulation mistakes. Knowing the most common errors helps you avoid them and troubleshoot problems when they occur.

Mistake 1: Formulating by Ingredient Percentage Instead of Nutrients

Some producers copy a formula from a neighbor or an old book and stick with it regardless of their ingredient quality. This is risky because ingredients vary. A batch of corn that is 8 percent protein instead of 9 percent will produce a ration that is lower in protein than expected. A batch of soybean meal that is 46 percent protein instead of 48 percent has the same effect.

Always formulate to meet nutrient targets, not to match a fixed ingredient list. This means recalculating your ration each time you buy a new batch of ingredients.

Mistake 2: Ignoring the Energy to Protein Ratio

A ration can meet both the energy and protein targets individually but still be imbalanced. If the energy is too high relative to the protein, birds eat less and consume too little protein. If the energy is too low, birds eat more and waste protein.

Check the calorie to protein ratio of your ration and compare it to the recommended range for your birds' growth stage. Adjust the energy or protein to bring the ratio into line.

Mistake 3: Using Poor Quality Ingredients

Feed ingredients that are moldy, rancid, or contaminated with toxins can ruin an otherwise good ration. Mycotoxins produced by molds can cause poor growth, immune suppression, and increased mortality. Rancid fats destroy vitamins and reduce palatability.

Buy ingredients from reputable sources and inspect them before use. Store feed ingredients in a clean, dry, rodent proof area. Do not use ingredients that show signs of spoilage.

Mistake 4: Inaccurate Weighing

Guessing ingredient weights is a sure way to produce an unbalanced ration. A handful of limestone is not the same weight as a handful of soybean meal. A scoop of vitamin premix can vary by 20 percent or more depending on how it is packed.

Use an accurate scale for all ingredients. For small batches, a kitchen scale that measures in grams is sufficient. For larger batches, invest in a platform scale with sufficient capacity. Weigh every ingredient for every batch.

Mistake 5: Poor Mixing

Even with accurate weights, poor mixing leaves your birds with an unbalanced diet. Some birds get too much of a nutrient and others get too little. This causes uneven growth and can lead to outbreaks of deficiency diseases.

Mix small ingredients into a premix before adding them to the main batch. Mix for the recommended time and check that the finished feed looks uniform.

Mistake 6: Not Adjusting for Growth Stage

Feeding a starter ration to finisher age birds wastes protein and increases feed cost. Feeding a finisher ration to young chicks stunts growth and causes leg problems. Follow the recommended feeding schedule for your production system.

Some producers try to simplify by feeding one ration for the entire growout. This is rarely optimal. The cost of the extra protein in the starter phase is more than offset by better growth and feed conversion.

Decision Thresholds and When to Adjust Your Ration

Knowing when to adjust your ration is as important as knowing how to formulate it. The following signs suggest that your ration may need adjustment.

Poor Growth Rate

If your birds are not gaining weight as expected, check your ration first. Calculate the actual nutrient levels and compare them to your targets. Weigh your ingredients again to confirm you are using the correct amounts. If the ration checks out, consider other factors such as disease, environmental stress, or water quality.

A 10 percent shortfall in growth at 21 days often indicates a protein deficiency in the starter phase. A 10 percent shortfall at market age may indicate an energy deficiency in the finisher phase.

Poor Feed Conversion

Feed conversion ratio is the amount of feed needed to produce one unit of gain. A high feed conversion ratio means your birds are eating more feed than expected for the weight they gain. This often points to an energy problem. If the ration is too low in energy, birds eat more feed to meet their energy needs, which increases the feed conversion ratio.

Check the energy level of your ration and the calorie to protein ratio. Also check feed wastage. Leaking feeders and spilled feed inflate the feed conversion ratio even when the ration is correct.

Increased Mortality

Sudden increases in mortality can have many causes, but nutritional problems are one possibility. Vitamin and mineral deficiencies can cause specific deficiency syndromes. Excesses of some minerals can be toxic. Mycotoxins in contaminated ingredients can cause widespread illness.

If mortality increases after a new batch of feed, stop feeding that batch and investigate. Check the ingredients for mold or off odors. Review your mixing procedure to confirm the premix was added correctly.

Leg Problems

Leg problems in broilers can result from nutritional imbalances, particularly calcium and phosphorus problems or vitamin D deficiency. Rapid growth itself can cause leg issues, but a correct ration reduces the risk.

If you see bent legs, swollen hocks, or birds reluctant to stand, check the calcium and phosphorus levels in your ration. Confirm that the calcium to phosphorus ratio is approximately 2 to 1 and that vitamin D is present in the premix.

Reduced Feed Intake

Birds that suddenly eat less feed may be reacting to a change in the ration. Poor palatability can result from rancid fats, moldy ingredients, or excessive salt. Very high energy diets can also reduce feed intake because birds meet their energy needs with less feed.

If feed intake drops sharply, check the quality of your ingredients and the palatability of the finished feed. Consider whether you added any new ingredient that might be unpalatable.

Monitoring and Recordkeeping for Feed Formulation

Good recordkeeping is essential for successful feed formulation. Records help you track performance, identify problems early, and make informed decisions about ration changes.

What to Record

Keep a feed log for every batch you mix. Record the date, the ingredient amounts, the calculated nutrient levels, and the cost of the batch. Note any changes from your standard formula and why you made them.

Track bird performance for each flock. Record the number of birds placed, the number that die, and the weights at key ages. Calculate the feed conversion ratio for each growth stage. Compare these numbers to your targets and to previous flocks.

Record feed intake daily or weekly. This helps you detect problems early. A sudden drop in feed intake can be the first sign of disease, heat stress, or a feed palatability problem.

Using Records to Improve

Review your records after each flock. Look for trends in growth rate, feed conversion, and mortality. Compare the performance of flocks fed different rations. This tells you which ration works best for your conditions.

Use your records to calculate the true cost of production. The cheapest ration per ton is not always the cheapest per pound of live weight. A slightly more expensive ration that improves feed conversion can lower your overall cost.

When to Have Feed Analyzed

Laboratory analysis of your mixed feed is the most reliable way to confirm your formulation. Consider submitting a sample when:

• You switch to a new batch of a major ingredient
• Your birds are not performing as expected
• You change your formula
• You suspect a mixing error

Feed analysis is not expensive relative to the cost of a flock. The information it provides can prevent costly mistakes.

When to Call a Veterinarian or Extension Agent

Feed formulation problems sometimes look like disease problems, and disease problems sometimes look like feed problems. Knowing when to call for professional help protects your flock and your investment.

Call a Veterinarian When

Call a veterinarian immediately if you see signs of a disease outbreak. These signs include sudden increases in mortality, respiratory distress, diarrhea, nervous signs, or swelling of the face and eyes. A veterinarian can perform a necropsy to determine the cause of death and recommend treatment.

Do not wait to see if the problem resolves on its own. Many poultry diseases spread quickly and cause significant losses within days. Early diagnosis and treatment save birds and money.

Call an Extension Agent When

Call your local extension agent when you need help with feed formulation, ration balancing, or troubleshooting performance problems. Extension agents have access to feed tables, formulation software, and local ingredient information. They can also connect you with poultry nutritionists at the state university.

Extension agents are also a good resource for information on local regulations, poultry health programs, and best management practices. They often offer workshops and training programs for poultry producers.

Call a Nutritionist When

Consider hiring a poultry nutritionist if you are mixing feed on a regular basis and want to optimize your ration. A nutritionist can formulate a custom ration for your specific ingredients, your bird strain, and your market. The cost of a nutritionist is usually recovered through better feed efficiency and lower feed cost.

Nutritionists are also valuable when you want to use alternative ingredients. They can help you evaluate the nutrient content of local ingredients and determine safe inclusion rates.

Frequently Asked Questions

How much protein does a broiler need?

Broiler protein requirements change with age. Starter rations for chicks from day 0 to 14 should contain 22 to 24 percent crude protein. Grower rations for days 15 to 28 should contain 20 to 22 percent. Finisher rations from day 29 to market should contain 18 to 20 percent. These are general ranges. Check the specific recommendations for your bird strain.

What is the best energy to protein ratio for broilers?

The ideal calorie to protein ratio widens as birds age. Starter rations typically use 120 to 130 kilocalories of metabolizable energy per percent of crude protein. Grower rations use 135 to 150 kilocalories per percent. Finisher rations use 150 to 170 kilocalories per percent. These ratios help ensure birds consume the right balance of energy and protein.

Can I mix my own broiler feed?

Yes, you can mix your own broiler feed if you have access to quality ingredients, an accurate scale, and a reliable mixing method. The most important steps are determining the correct nutrient targets, calculating a balanced ration, weighing ingredients accurately, and mixing thoroughly. Many small producers successfully mix their own feed and save money compared to buying commercial feed.

What ingredients do I need for broiler feed?

The basic ingredients for a corn soybean broiler ration are corn for energy, soybean meal for protein, vegetable oil or animal fat for additional energy, dicalcium phosphate and limestone for calcium and phosphorus, salt, a vitamin and mineral premix, and synthetic methionine and lysine. Local alternatives can replace part of the corn or soybean meal, but every substitution changes the nutrient profile.

Why are my broilers not growing as fast as expected?

Poor growth can result from a ration that is too low in protein or energy, an imbalanced calorie to protein ratio, poor feed intake, disease, or environmental stress. Check your ration formulation first, then investigate other factors. Weigh your feed ingredients to confirm you are mixing correctly and check your birds for signs of disease.

How often should I change the feed for my broilers?

Most producers use a three phase feeding program. Feed starter ration from day 0 to 14, grower ration from day 15 to 28, and finisher ration from day 29 to market. Some producers use a two phase program with just starter and finisher. The exact timing depends on your bird strain and target market weight. Follow the recommendations from your feed supplier or nutritionist.

What causes leg problems in broilers?

Leg problems in broilers can result from nutritional imbalances, particularly calcium and phosphorus deficiencies or an incorrect calcium to phosphorus ratio. Rapid growth itself can also cause leg issues. Vitamin D deficiency, poor litter conditions, and certain diseases can also contribute. Check your ration's calcium and phosphorus levels and ensure the ratio is approximately 2 to 1.

How can I reduce my feed cost without hurting performance?

The best way to reduce feed cost is to improve feed conversion, not to buy cheaper ingredients. A slightly more expensive ration that produces better feed conversion usually costs less per pound of live weight. You can also reduce feed waste by adjusting feeders properly and storing feed correctly. Consider using local ingredients where they are cheaper and work with a nutritionist to optimize your ration.

Related Farming Guides

This section will be populated with links to related poultry production guides, including broiler management, poultry housing, and disease prevention resources. Check back for updates or browse the poultry category for more farming guides.

Related Clinical & Scientific Guides

• Poultry Farm Fencing: Materials, Design, and Predator Exclusion
• Broiler House Wind Speed and Airflow Measurement
• Broiler House Heating Systems: Types and Efficiency

References

• FAO Poultry Production: https://www.fao.org/poultry-production-products/en/
• USDA APHIS Poultry Health: https://www.aphis.usda.gov/livestock-poultry-disease/avian
• WOAH Avian Influenza: https://www.woah.org/en/disease/avian-influenza/
• 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.