# Feedlot Lamb Production: Nutrition, Housing, and Marketing ## Key Takeaways - Feedlot lamb housing requires 1.5 to 2.0 square meters per lamb, with emphasis on adequate drainage (2-4% slope), ventilation to prevent respiratory disease, and shade to mitigate heat stress, as informed by NRCS and ARS guidelines. - Rations should consist of 60-75% concentrate (grains) and 20-30% roughage, with crude protein levels of 12-16%, to achieve target weight gain and finish, referencing FAO recommendations for nutrient requirements. - A critical health management component is a preventive program including vaccinations against clostridial diseases and respiratory pathogens, alongside coccidiosis prevention through hygiene and coccidiostats, as detailed in USDA NAL resources. - Transitioning lambs to high-concentrate diets must be gradual over 7-14 days, starting with a 50:50 forage-to-concentrate ratio, to prevent ruminal acidosis, a common failure pattern detailed in the Merck Veterinary Manual. - Marketing success hinges on achieving target market weights (45-60 kg live weight) and desired fat cover, understanding carcass grading standards from USDA AMS, and strategic price timing through various marketing channels. - Biosecurity protocols, including a 14-21 day quarantine for new arrivals and thorough pen disinfection between groups, are essential to minimize disease introduction and spread, as outlined by USDA NAL guidelines. --- Feedlot lamb production is a management system where weaned lambs are confined and fed a high-energy ration to achieve market weight and finish in a controlled period. This article provides sheep farmers with practical guidance on [feedlot design](/knowledge/animal-farming/farm-management/beef-cattle-feedlot-design-pen-layout-manure), ration formulation, health management, and marketing of finished lambs, based on available evidence from official and peer-reviewed sources. ## At a Glance | Component | Key Consideration | Practical Outcome | |-----------|-------------------|-------------------| | Housing | Pen space, ventilation, drainage, shade | Reduced stress, lower disease incidence, improved feed conversion | | Nutrition | High-energy concentrate ration with adequate protein and fiber | Consistent weight gain, target market finish, reduced feeding period | | Health Management | Vaccination, parasite control, coccidiosis prevention | Lower mortality, fewer veterinary interventions, better welfare | | Marketing | Market weight, fat cover, carcass grading, price timing | Higher sale price, reduced holding costs, predictable returns | ## Feedlot Design and Housing ### Pen Layout and Space Allowances Feedlot pens must provide adequate space for lambs to rest, eat, and drink without excessive competition. The USDA Natural Resources Conservation Service (NRCS) provides technical guidance on livestock facility design, including drainage, windbreaks, and manure management. Pens should be oriented to allow natural drainage and reduce mud accumulation. A common recommendation is 1.5 to 2.0 square meters per lamb in a confined feedlot, though local climate and pen surface type influence this. Concrete or packed gravel surfaces are easier to clean and reduce parasite burdens compared to dirt lots. ### Ventilation and Shade Proper ventilation prevents respiratory disease and heat stress. Open-sided pens with ridge vents or roof overhangs allow natural airflow. In hot climates, shade structures reduce heat load and improve feed intake. The USDA Agricultural Research Service (ARS) conducts research on livestock housing and environmental management, which can inform local design decisions. Farmers should observe lamb behavior during hot weather. Panting, crowding at waterers, or reduced feed intake indicate inadequate cooling. ### Water and Feed Access Lambs require constant access to clean, fresh water. Water troughs should be positioned to prevent contamination and allow easy cleaning. Feed bunks should provide 20 to 30 centimeters of linear space per lamb to reduce competition. Bunk management involves adjusting feed delivery to match intake, avoiding waste, and preventing feed spoilage. The Merck Veterinary Manual (www.merckvetmanual.com) offers guidance on [feed bunk management](/knowledge/animal-farming/beef-cattle/feedlot-feed-bunk-management-reading-adjusting-intake) and water quality for sheep. ### Drainage and Manure Management Good drainage prevents muddy pens that increase disease risk and reduce lamb performance. Pens should slope 2 to 4 percent away from feed bunks and waterers. Manure removal schedules depend on stocking density and pen surface. Regular cleaning reduces fly populations and ammonia levels. The NRCS provides technical standards for manure storage and nutrient management planning. ## Ration Formulation and Feeding ### Energy and Protein Requirements Feedlot lambs require a high-energy diet to achieve rapid weight gain and desirable finish. Rations typically contain 60 to 75 percent concentrate (grains such as corn, barley, or sorghum) with 20 to 30 percent roughage (hay or silage) to maintain rumen function. Crude protein levels of 12 to 16 percent are common, with higher levels for lighter lambs. The FAO Animal Production and Health division (www.fao.org/animal-production/en) provides resources on feed formulation and nutrient requirements for sheep. ### Feed Ingredients and Additives Common energy sources include cracked corn, rolled barley, and wheat. Protein supplements such as soybean meal, cottonseed meal, or canola meal balance the ration. By-products from biodiesel production, such as glycerin or distillers grains, have been evaluated as feed ingredients. A study on feedlot of lambs fed biodiesel co-products examined performance, commercial cuts, and economic evaluation, suggesting that alternative feedstuffs can be cost-effective when available locally. Farmers should test feed ingredients for nutrient content and adjust rations accordingly. ### Transition Diets and Adaptation Lambs entering the feedlot need a gradual transition from forage to high-concentrate diets to prevent acidosis and digestive upset. A typical adaptation period lasts 7 to 14 days, starting with a 50:50 forage-to-concentrate ratio and increasing concentrate by 10 percent every two to three days. The Merck Veterinary Manual provides protocols for preventing ruminal acidosis in feedlot sheep. Signs of acidosis include reduced feed intake, diarrhea, lethargy, and death in severe cases. ### Feeding Frequency and Bunk Management Feeding twice daily encourages consistent intake and reduces feed waste. Bunk management involves adjusting feed amounts based on previous day consumption. Clean bunks before each feeding to prevent moldy feed accumulation. Feed refusal should be recorded and removed daily. The USDA ARS conducts research on feed efficiency and bunk management in livestock. ## Health Management ### Vaccination and Parasite Control A preventive health program is essential for feedlot lambs. Vaccinations against clostridial diseases (enterotoxemia, tetanus) and respiratory pathogens are common. The USDA National Agricultural Library Animal Health and Welfare section (www.nal.usda.gov/animal-health-and-welfare) provides resources on vaccination schedules and disease prevention. Internal parasite control involves strategic deworming based on fecal egg counts and rotation of anthelmintic classes to reduce resistance. ### Coccidiosis Prevention Coccidiosis is a common problem in feedlot lambs, especially during the first weeks after arrival. The Veterinary Clinics of North America published a review on coccidiosis and cryptosporidiosis in sheep and goats, highlighting the importance of hygiene and preventive medication. Coccidiostats in feed or water can reduce oocyst shedding. Clinical signs include diarrhea, dehydration, and poor growth. Farmers should monitor lambs for scours and treat affected animals promptly. ### Respiratory Disease Respiratory disease (pneumonia) is a major cause of morbidity and mortality in feedlot lambs. Stress from weaning, transport, and crowding increases susceptibility. The Merck Veterinary Manual covers diagnosis and management of respiratory disease in sheep. Prevention includes reducing stress, ensuring adequate ventilation, and vaccinating against common respiratory pathogens. Sick lambs should be isolated and treated according to veterinary advice. ### Biosecurity Protocols Biosecurity measures reduce the introduction and spread of disease. New lambs should be quarantined for 14 to 21 days before mixing with the resident flock. Cleaning and disinfection of pens between groups reduces pathogen load. The USDA National Agricultural Library provides biosecurity guidelines for livestock operations. Farmers should maintain records of animal movements, health treatments, and mortality. ## Records and Measurements ### Weight Gain and Feed Conversion Accurate records of individual or group weights are essential for monitoring performance. Lambs should be weighed at entry, at regular intervals (every 14 to 28 days), and at slaughter. Feed intake per pen should be recorded daily. [Feed conversion ratio](/knowledge/animal-farming/poultry/feed-conversion-ratio-measuring-improving-poultry-efficiency) (FCR) is calculated as kilograms of feed consumed per kilogram of weight gain. A study on simulation of lean lamb production systems examined performance metrics for different production scenarios. Target FCR for feedlot lambs is typically 4:1 to 6:1, depending on ration and genetics. ### Mortality and Morbidity Records Daily health checks identify sick lambs early. Records should include date, pen, animal identification, clinical signs, treatment, and outcome. Mortality rates above 2 to 3 percent warrant investigation. The FAO Animal Production and Health division provides guidance on record-keeping for livestock health management. ### Feed Inventory and Cost Tracking Feed costs represent 60 to 70 percent of total production expenses. Farmers should track feed purchases, inventory, and usage per pen. A study on economic and financial viability of the production of Brazilian somalis sheep fed with different nutritional plans examined cost structures for feedlot systems. Regular cost analysis helps identify opportunities to reduce expenses or improve efficiency. ## Common Failure Patterns ### Acidosis and Digestive Upset Rapid introduction of high-concentrate diets causes ruminal acidosis. Prevention requires gradual adaptation and inclusion of adequate effective fiber. Signs include reduced feed intake, diarrhea, and death. Farmers should monitor feed intake and adjust ration changes based on observed consumption. ### Coccidiosis Outbreaks Coccidiosis often occurs 2 to 4 weeks after lambs enter the feedlot. Overcrowding, wet bedding, and poor hygiene increase risk. Prevention includes clean pens, coccidiostats, and reducing stress. Treatment involves supportive care and anticoccidial drugs under veterinary guidance. ### Respiratory Disease Pneumonia outbreaks are common during cold, wet weather or when ventilation is inadequate. Stress from transport and mixing increases susceptibility. Prevention includes reducing stress, ensuring ventilation, and vaccinating. Sick lambs should be isolated and treated promptly. ### Feed Waste and Spoilage Wet or moldy feed reduces intake and can cause health problems. Bunk management and proper feed storage prevent waste. Farmers should clean bunks daily and adjust feed amounts to match intake. ## Welfare and Safety Context ### Animal Welfare Considerations Feedlot systems must meet basic welfare requirements: adequate space, clean water, nutritious feed, and protection from extreme weather. The USDA National Agricultural Library Animal Health and Welfare section provides resources on welfare assessment and best practices. Lambs should be handled calmly to reduce stress. Sick or injured animals require prompt treatment or humane euthanasia. ### Worker Safety Feedlot operations involve risks from livestock handling, machinery, and feed dust. Workers should receive training on safe animal handling, equipment operation, and hazard recognition. The NRCS provides safety guidelines for agricultural facilities. Personal protective equipment (gloves, boots, dust masks) should be used as needed. ### [Food Safety](/knowledge/bacteria/livestock-bacteria/cooking-chicken-bacteria-prevention) Feedlot lambs destined for slaughter must meet food safety standards. Withdrawal periods for medications must be observed. The FAO Animal Production and Health division provides guidance on food safety in livestock production. Farmers should maintain treatment records and follow label instructions for all veterinary products. ## Marketing Finished Lambs ### Market Weight and Finish Target market weight depends on breed, market demand, and price premiums. Most feedlot lambs are marketed at 45 to 60 kilograms live weight, with moderate fat cover. A study on zootechnic and economic indicators of termination in feedlot of different genetic groups of lambs examined performance and carcass traits across breeds. Farmers should know their target market specifications before starting the feeding period. ### Carcass Grading and Pricing Carcass weight, fat depth, and muscling determine grade and price. The USDA Agricultural Marketing Service provides standards for lamb carcass grading. Farmers should discuss grade requirements with buyers or processors. A study on economic return of sheep production on pasture and in feedlot compared profitability across systems, highlighting the importance of market timing. ### Price Timing and Marketing Channels Lamb prices fluctuate seasonally and with supply. Farmers can use futures markets, forward contracts, or direct sales to manage price risk. A case study on managing feedlot profit drivers examined factors affecting profitability in South African sheep feedlots. Farmers should develop a marketing plan before lambs enter the feedlot. ### Direct Marketing and Value-Added Options Some farmers sell directly to consumers, restaurants, or specialty markets. Value-added options include branded lamb, organic certification, or grass-fed claims. The FAO Animal Production and Health division provides resources on livestock marketing and value chains. Farmers should assess local demand and regulatory requirements before pursuing direct sales. ## Feedlot Entry Protocols and Receiving Management ### Pre-Arrival Preparation and Facility Readiness Before lambs arrive, the feedlot must be prepared to receive them. Pens should be cleaned, disinfected, and allowed to dry completely. The USDA Natural Resources Conservation Service (NRCS) provides technical standards for livestock facility sanitation and manure management. Feed bunks and water troughs must be scrubbed and sanitized to remove residual pathogens from previous groups. A 14 to 21 day empty period between groups reduces pathogen load and breaks disease cycles. Bedding, if used, should be fresh and dry. Shade structures and windbreaks should be inspected and repaired as needed. Feed inventory should include starter ration ingredients to allow immediate feeding upon arrival. Water quality should be tested for total dissolved solids, nitrates, and bacterial contamination. The Merck Veterinary Manual (www.merckvetmanual.com) provides guidance on water quality standards for sheep. ### Arrival Processing Sequence and Timing Lambs should be processed within 12 to 24 hours of arrival to minimize stress and allow recovery before handling. Processing includes individual identification (ear tags or electronic identification), weighing, [body condition scoring](/knowledge/animal-farming/farm-management/body-condition-scoring-a-tool-for-feed-management), and health assessment. The USDA Agricultural Research Service (ARS) conducts research on livestock handling and stress reduction. Lambs should be moved calmly through handling facilities with solid sides and non-slip flooring. Processing order should be: visual health inspection, weighing, vaccination, parasite treatment, and identification. Sick or injured lambs should be separated immediately and placed in a hospital pen for treatment. The FAO Animal Production and Health division (www.fao.org/animal-production/en) provides resources on livestock handling and welfare during transport and arrival. ### Vaccination and Parasite Control at Entry A strategic vaccination and parasite control program begins at arrival. Clostridial vaccines (enterotoxemia and tetanus) are commonly administered at entry, with a booster 2 to 4 weeks later. Respiratory disease vaccines may be given based on local risk assessment. The USDA National Agricultural Library Animal Health and Welfare section (www.nal.usda.gov/animal-health-and-welfare) provides resources on vaccination schedules for sheep. Internal parasite control should be based on fecal egg counts from a representative sample of lambs. If deworming is indicated, use an anthelmintic from a class not recently used on the source farm to reduce resistance risk. External parasite treatment for lice and mites may be needed depending on source and season. All treatments should be recorded with product name, dose, route, withdrawal period, and date. ### Water and Feed Introduction After Arrival Lambs arriving from pasture or transport are often dehydrated and stressed. Fresh, clean water should be available immediately in clean troughs. Adding electrolytes to water for the first 24 to 48 hours can help restore hydration and reduce stress. The Merck Veterinary Manual provides guidance on electrolyte therapy for stressed sheep. Feed should be introduced gradually, starting with long-stem hay or a high-roughage starter ration for the first 24 to 48 hours. This allows rumen adaptation and reduces the risk of acidosis. After 48 hours, begin the transition to the high-concentrate finishing ration over 7 to 14 days. Feed intake should be monitored closely during the first week. Low intake may indicate stress, disease, or poor ration palatability. ### Hospital Pen Management and Isolation Protocols A hospital pen is essential for managing sick or injured lambs. The hospital pen should be located away from main pens to reduce disease transmission and allow quiet recovery. Space allowance should be 2.5 to 3.0 square meters per lamb to provide comfort and reduce competition. Bedding should be deep and clean. Water and feed should be easily accessible. Sick lambs should be examined daily and treated according to veterinary protocols. Treatment records must include animal identification, clinical signs, diagnosis, treatment, and outcome. The USDA National Agricultural Library provides biosecurity guidelines for livestock operations. Lambs that do not respond to treatment within 48 to 72 hours should be re-evaluated by a veterinarian. Humane euthanasia should be considered for animals with poor prognosis or chronic suffering. ### Record System for Arrival and Processing A systematic record system is critical for managing feedlot lambs from arrival to marketing. Individual or group records should include: source farm, arrival date, number of lambs, average weight, body condition score, vaccination and treatment history, and any health issues observed. A study on simulation of lean lamb production systems examined performance metrics for different production scenarios. Records should be maintained in a format that allows easy analysis of mortality, morbidity, weight gain, and feed conversion by pen or group. The FAO Animal Production and Health division provides guidance on record-keeping for livestock health management. Farmers should review records weekly to identify trends and adjust management accordingly. ### Common Failure Patterns in Receiving Management #### Delayed Processing and Increased Stress Processing lambs more than 24 hours after arrival increases stress and disease risk. Lambs should be allowed to rest and rehydrate before handling, but prolonged delay allows disease to develop without detection. Farmers should plan arrival timing to allow processing within the recommended window. #### Inadequate Water Access After Arrival Lambs that are dehydrated and stressed may not find water troughs immediately. Providing multiple water sources and ensuring troughs are clean and accessible reduces dehydration risk. Adding electrolytes for the first 24 to 48 hours can improve water intake. #### Overcrowding in Receiving Pens Receiving pens should provide more space per lamb than finishing pens to reduce stress and competition. A common recommendation is 2.0 to 2.5 square meters per lamb during the first 7 to 14 days. Overcrowding increases disease transmission and reduces feed intake. #### Incorrect Feed Transition Speed Introducing high-concentrate rations too quickly causes acidosis and digestive upset. The transition should take 7 to 14 days, with gradual increases in concentrate. Farmers should monitor feed intake and adjust transition speed based on observed consumption. #### Poor Hospital Pen Management Hospital pens that are overcrowded, dirty, or poorly located reduce treatment success and increase disease spread. The hospital pen should be cleaned and disinfected between occupants. Sick lambs should be isolated from the main group and monitored daily. ### Welfare and Safety Context for Receiving #### Animal Welfare During Arrival Arrival and processing are stressful events for lambs. Minimizing handling time, using low-stress handling techniques, and providing a quiet environment improve welfare. The USDA National Agricultural Library Animal Health and Welfare section provides resources on welfare assessment during transport and arrival. Lambs should have access to water and rest before processing. Sick or injured lambs should be prioritized for treatment. #### Worker Safety During Processing Processing involves handling livestock, using equipment, and administering treatments. Workers should wear appropriate personal protective equipment (gloves, boots, dust masks) and receive training on safe animal handling and equipment operation. The NRCS provides safety guidelines for agricultural facilities. Needle sticks, kicks, and crush injuries are common risks. Workers should be trained on proper restraint techniques and emergency procedures. #### Food Safety Considerations All treatments administered at arrival must comply with food safety regulations. Withdrawal periods for vaccines, dewormers, and other medications must be observed. The FAO Animal Production and Health division provides guidance on food safety in livestock production. Treatment records should include product name, dose, route, date, and withdrawal period. Farmers should verify that all products used are approved for sheep and have appropriate withdrawal times. ### Practical Implementation Steps for Receiving Management 1. Prepare pens and facilities 7 to 14 days before lamb arrival. Clean, disinfect, and allow drying. Inspect waterers, feed bunks, and shade structures. 2. Order starter ration ingredients and ensure feed inventory is adequate for the first 7 to 14 days. 3. Develop a processing protocol including order of handling, vaccination schedule, parasite control plan, and record system. 4. Train workers on processing procedures, low-stress handling, and safety protocols. 5. Upon lamb arrival, provide immediate access to clean water with electrolytes. Offer long-stem hay or high-roughage starter ration. 6. Process lambs within 12 to 24 hours. Record individual or group weights, identification, treatments, and health observations. 7. Separate sick or injured lambs into a clean, well-bedded hospital pen. Begin treatment according to veterinary protocols. 8. Monitor feed and water intake daily during the first week. Adjust transition speed based on observed consumption. 9. Review records weekly to identify trends in mortality, morbidity, and performance. Investigate deviations from expected values. 10. Consult a veterinarian for disease outbreaks, treatment failures, or unexplained health problems. ### Records and Measurements for Receiving | Record Item | Frequency | Purpose | |-------------|-----------|---------| | Arrival date and source | Per group | Traceability and disease tracking | | Number of lambs | Per group | Inventory and mortality calculation | | Average weight | At arrival | Baseline for gain calculation | | Body condition score | At arrival | Nutritional status assessment | | Vaccination and treatment records | At processing | Health management and withdrawal compliance | | Feed intake | Daily | Transition management and intake monitoring | | Mortality and morbidity | Daily | Health surveillance and intervention timing | | Water intake observation | Daily | Dehydration and health assessment | ### Professional Escalation Criteria Farmers should seek veterinary assistance when: mortality exceeds 2 percent within the first 14 days, more than 5 percent of lambs show signs of respiratory disease or diarrhea, feed intake drops below 50 percent of expected for more than 48 hours, or lambs fail to respond to initial treatment within 72 hours. The Merck Veterinary Manual provides guidance on when to consult a veterinarian for sheep health problems. The USDA National Agricultural Library Animal Health and Welfare section offers resources for finding veterinary services and diagnostic laboratories. ## Frequently Asked Questions ### What is the optimal pen space per lamb in a feedlot? Pen space allowances depend on climate, pen surface, and management. A common recommendation is 1.5 to 2.0 square meters per lamb. More space may be needed in hot climates or on dirt surfaces to reduce mud and heat stress. The NRCS provides technical guidance on livestock facility design. ### How long does it take to finish a lamb in a feedlot? The feeding period typically ranges from 60 to 120 days, depending on starting weight, genetics, ration energy density, and target market weight. Lambs entering at 25 to 30 kilograms may reach market weight in 60 to 90 days. A study on simulation of lean lamb production systems examined performance across different production scenarios. ### What is the ideal feed conversion ratio for feedlot lambs? Target feed conversion ratio (FCR) is 4:1 to 6:1, meaning 4 to 6 kilograms of feed per kilogram of weight gain. FCR varies with ration composition, genetics, and management. Farmers should track FCR per pen and investigate deviations from expected values. ### How do I prevent coccidiosis in feedlot lambs? Prevention includes clean pens, adequate space, reducing stress, and using coccidiostats in feed or water during the first 4 to 6 weeks. The Veterinary Clinics of North America review on coccidiosis and cryptosporidiosis in sheep and goats provides detailed prevention and control strategies. ### What vaccinations are recommended for feedlot lambs? Common vaccinations include clostridial diseases (enterotoxemia, tetanus) and respiratory pathogens. The Merck Veterinary Manual and USDA National Agricultural Library provide vaccination schedules. Farmers should consult a veterinarian to develop a program based on local disease risks. ### How do I transition lambs from pasture to a high-concentrate ration? Gradually increase concentrate over 7 to 14 days, starting with a 50:50 forage-to-concentrate ratio. Increase concentrate by 10 percent every two to three days. Monitor feed intake and watch for signs of acidosis. The Merck Veterinary Manual provides protocols for preventing ruminal acidosis. ### What is the target market weight for feedlot lambs? Target market weight depends on breed, market demand, and price premiums. Most lambs are marketed at 45 to 60 kilograms live weight. Farmers should know their target market specifications and adjust feeding duration accordingly. ### How do I manage feed costs in a feedlot operation? Track feed purchases, inventory, and usage per pen. Compare feed costs to weight gain to calculate cost per kilogram of gain. A study on economic and financial viability of the production of Brazilian somalis sheep fed with different nutritional plans examined cost structures. Consider alternative feed ingredients when cost-effective. ## Related Farming Guides - [Lentivirus Production](/blog/guides/plaque-assays-planning-controls-and-reporting-viral-titer) - [Dairy Cattle Farming Nutrition Housing Health Signals And Herd Management](/knowledge/animal-farming/dairy-cattle/dairy-cattle-farming-nutrition-housing-health-signals-and-herd-management) - [Carp Farming Pond Production Feeding And Harvest Management](/knowledge/animal-farming/aquaculture/carp-farming-pond-production-feeding-and-harvest-management) - [Bale Grazing With Sheep Site Selection And Nutrient Management](/knowledge/animal-farming/sheep/bale-grazing-with-sheep-site-selection-and-nutrient-management) - [Finishing Lambs On Pasture Forage Or Concentrate Systems](/knowledge/animal-farming/sheep/finishing-lambs-on-pasture-forage-or-concentrate-systems) ## Related Clinical & Scientific Guides * [Sheep Grazing Lease: Terms, Rates, and Legal Considerations](/knowledge/animal-farming/sheep/sheep-grazing-lease-terms-rates-and-legal-considerations) * [Sheep Breed Selection for Meat, Wool, Dairy, and Low-Input Systems](/knowledge/animal-farming/sheep/sheep-breed-selection-for-meat-wool-dairy-and-low-input-systems) * [Sheep Barn Flooring for Hoof Health: Best Materials and Practices](/knowledge/animal-farming/sheep/sheep-barn-flooring-hoof-health-materials-practices) ## References and Further Reading - [www.ars.usda.gov](https://www.ars.usda.gov/) - [www.nrcs.usda.gov](https://www.nrcs.usda.gov/) - [www.merckvetmanual.com](https://www.merckvetmanual.com/management-and-nutrition) - [FAO Animal Production and Health](https://www.fao.org/animal-production/en). Food and Agriculture Organization of the United Nations. - [Animal Health and Welfare](https://www.nal.usda.gov/animal-health-and-welfare). USDA National Agricultural Library. - [Precision finishing of South African lambs in feedlots: a review.](https://pubmed.ncbi.nlm.nih.gov/32500411). Tropical animal health and production, 2020. - [Effects of sheep production systems on oxidative storage stability of lean lamb patties.](https://pubmed.ncbi.nlm.nih.gov/22063430). Meat science, 2003. - [Clinical nutrition of sheep and goats.](https://pubmed.ncbi.nlm.nih.gov/2245362). The Veterinary clinics of North America. Food animal practice, 1990. - [Economic and financial viability of the production of Brazilian somalis sheep fed with different nutritional plans.](https://pubmed.ncbi.nlm.nih.gov/39096397). Tropical animal health and production, 2024. - [Coccidiosis and cryptosporidiosis in sheep and goats.](https://pubmed.ncbi.nlm.nih.gov/2245367). The Veterinary clinics of North America. Food animal practice, 1990. - [Simulation of lean lamb production systems.](https://pubmed.ncbi.nlm.nih.gov/2005004). Journal of animal science, 1991. - [Economic return of sheep production on pasture and in feedlot](https://doi.org/10.1590/S1516-35982009001100029). Revista Brasileira De Zootecnia, 2009. - [Managing Feedlot Profit Drivers: A South African Sheep Feedlot Case Study](https://doi.org/10.17159/2413-3221/2025/v53n2a17375). South African Journal of Agricultural Extension, 2025. - [Feedlot of lambs fed biodiesel co-products: performance, commercial cuts and economic evaluation](https://doi.org/10.1007/s11250-017-1416-3). Tropical Animal Health and Production, 2018. - [Zootechnic and economic indicators of termination in feedlot of different genetic groups of lambs](https://doi.org/10.4025/ACTASCIANIMSCI.V43I1.51098). Acta Scientiarum Animal Sciences, 2021. > This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.