# Beef Cattle Scours Prevention in Calves ## Key Takeaways - **Integrated Management is Crucial:** Effective prevention of neonatal calf diarrhea (scours) in beef operations necessitates a multi-faceted approach, integrating calving environment management, timely colostrum administration, stringent hygiene protocols, adequate weather protection, diligent daily observation, and a pre-defined veterinary response plan. No single intervention is sufficient; simultaneous attention to all components is required. - **Colostrum's Critical Role:** Ensuring adequate volume (2-3 liters) and high quality of colostrum within the first 6 hours of life is paramount for passive transfer of maternal antibodies, providing essential immunity against enteric pathogens. Maternal vaccination 4-6 weeks pre-calving significantly enhances colostral antibody levels against common scours agents like rotavirus, coronavirus, and *E. coli*. - **Environmental Hygiene Mitigates Pathogen Load:** Maintaining clean, dry, and well-bedded calving areas, with regular removal of soiled material and disinfection between uses, is vital to reduce exposure to enteric organisms such as *E. coli*, *Cryptosporidium parvum*, rotavirus, and coronavirus. Pasture rotation and well-drained sites further minimize environmental contamination. - **Early Detection and Veterinary Planning:** Daily observation of calves at least twice daily for signs of diarrhea, depression, or reduced suckling behavior allows for prompt intervention. A written veterinary response plan, reviewed annually, should outline diagnostic steps (e.g., fecal culture, PCR panels for viral/bacterial/protozoal agents) and treatment protocols to manage outbreaks and minimize antimicrobial resistance. - **Maternal Nutrition and Calf Vigor:** Adequate maternal nutrition during late gestation, including balanced trace minerals (selenium, vitamin E) and energy, directly influences colostrum quality and calf vigor, impacting the calf's ability to absorb immunoglobulins and resist infection. --- Prevention of neonatal calf diarrhea in beef cattle operations depends on a systematic approach that integrates calving environment management, colostrum administration, hygiene protocols, weather protection, daily observation, and a predetermined veterinary response plan. Scours result from multifactorial interactions between infectious agents, host immunity, and environmental stressors. No single intervention reliably prevents disease, effective control requires simultaneous attention to each component of the production system. ## At a Glance | Factor | Key Actions | Supporting Source | |--------|-------------|-------------------| | Calving environment | Provide clean, dry, sheltered area with low stocking density | [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) | | Colostrum management | Ensure adequate volume and quality within first 6 hours | [PubMed record 35243126](https://pubmed.ncbi.nlm.nih.gov/35243126/) | | Hygiene protocols | Remove soiled bedding, disinfect calving pens between uses | [USDA APHIS Livestock and Poultry Disease](https://www.aphis.usda.gov/livestock-poultry-disease) | | Weather protection | Minimize wind, moisture, and temperature extremes | [Merck Veterinary Manual](https://www.merckvetmanual.com/) | | Daily observation | Inspect all calves at least twice daily for early signs of diarrhea | [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) | | Veterinary response plan | Establish protocols for diagnosis, treatment, and outbreak control | [USDA National Animal Health Monitoring System](https://www.aphis.usda.gov/livestock-poultry-disease/nahms) | ## Core Management Framework for Scours Prevention ### System Context and Planning Decisions Effective scours prevention begins before the calving season. Producers must evaluate their facilities, labor resources, and animal flow to determine the most appropriate calving system. Research and field experience indicate that management strategies differ substantially between spring,calving and fall,calving herds, between confined and pasture,based operations, and between small and large herds ([PubMed record 39858132](https://pubmed.ncbi.nlm.nih.gov/39858132/)). Planning decisions include selecting calving dates that avoid adverse weather windows, allocating adequate personnel for monitoring during peak calving, and arranging veterinary consultation prior to the season start. Grouping cows by calving date reduces age spread among calves and minimizes pathogen buildup from older to younger animals. This practice aligns with recommendations from the [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) for managing infectious disease risk in livestock groups. Facilities should be designed or adapted to allow cleaning and disinfection between groups and to prevent contamination of feed and water sources. ### Calving Environment Hygiene The calving environment directly influences pathogen exposure for the newborn calf. Clean, dry, and well,bedded areas reduce the load of enteric organisms such as *Escherichia coli*, *Cryptosporidium parvum*, rotavirus, and coronavirus ([Merck Veterinary Manual](https://www.merckvetmanual.com/)). Pasture calving on well,drained sites with adequate wind shelter generally presents lower infectious pressure than confined calving, but even extensive systems require attention to site selection and rotation. For confined calving operations, the [USDA APHIS Livestock and Poultry Disease](https://www.aphis.usda.gov/livestock-poultry-disease) resource emphasizes the importance of removing soiled bedding and manure between calvings and allowing pens to dry before reuse. Disinfection protocols must be matched to the pathogens most likely present in the herd, as identified through diagnostic history or regional surveillance. [PubMed record 3986678](https://pubmed.ncbi.nlm.nih.gov/3986678/) documented that environmental contamination with *Cryptosporidium parvum* oocysts persists even after standard cleaning, highlighting the need for rigorous hygiene measures including steam cleaning or prolonged drying periods where feasible. ### Nutritional Planning for the Dam Maternal nutrition during late gestation influences colostrum quality and calf vigor. Cows in adequate body condition and receiving balanced trace mineral and vitamin supplementation produce colostrum with higher immunoglobulin concentrations. Although specific threshold values vary among herds and laboratories, the principle that maternally derived immunity begins with proper dam nutrition is well established ([PubMed record 2178741](https://pubmed.ncbi.nlm.nih.gov/2178741/)). Producers should consult with a nutritionist to verify that rations meet requirements for protein, energy, selenium, vitamin E, and other nutrients known to affect neonatal health. ## Environment and Facility Management The calving environment directly affects neonatal exposure to enteric pathogens. Designate a dedicated calving area that is well drained and protected from prevailing winds. Use deep, clean bedding to insulate calves from cold, wet ground, as hypothermia impairs immunoglobulin absorption and immune function. Remove soiled bedding regularly and maintain a clean, dry surface before each calving. Separate pregnant cows from calving cows until parturition begins, and move sick calves with diarrhea to an isolation pen immediately. Provide windbreaks or calving sheds in regions with inclement weather, but ensure adequate ventilation to prevent ammonia accumulation. These principles align with standards from the [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) regarding biosecurity and housing hygiene. Water sources in the calving area must be clean and protected from manure contamination. Troughs should be elevated or placed on a drained pad to reduce fecal,oral transmission. Nutritional management of the dam during late gestation,adequate energy and protein, plus trace minerals such as selenium and vitamin E,supports colostrum quality and calf vigor. The [Merck Veterinary Manual](https://www.merckvetmanual.com/) details how maternal nutrition influences passive transfer failure. ## Colostrum Management and Calving Decisions Colostrum is the single most important nutritional intervention to prevent scours. Calves must receive at least 2 to 3 liters of clean, high,quality colostrum within the first 6 hours of life. On beef operations, natural suckling is the norm, but observation is essential. If a calf is weak, chilled, or the dam rejects it, bottle,feed or tube,feed with colostrum from a healthy vaccinated cow. Pooled colostrum carries disease risk, use colostrum from dams at low risk for Johne’s disease and other infections. [PubMed record 39858132](https://pubmed.ncbi.nlm.nih.gov/39858132/) examined the impact of colostrum timing on morbidity in beef calves, reinforcing the need for rapid intake. Production,stage decisions include scheduling vaccinations for the dam 4,6 weeks pre,calving to boost specific antibodies in colostrum. A scoping review of [vaccination for neonatal calf diarrhea in cow,calf operations](https://api.elsevier.com/content/abstract/scopus_id/85124995633) (2022) found that rotavirus, coronavirus, and *E. coli* vaccines significantly reduce scours incidence when administered according to label instructions. Discuss maternal vaccination timing with a veterinarian, as vaccine efficacy depends on the dam’s immune status and the herd’s pathogen profile. Grouping strategies also affect exposure. Calve heifers separately from mature cows to reduce pathogen load and increase observation of first,time mothers. Avoid moving pregnant females through muddy or contaminated lanes. Calve in a sheltered paddock or shed, then move cow,calf pairs to a clean pasture within 24,48 hours. ## Hygiene Protocols for Workers and Equipment Hygiene prevents pathogen carryover from one calving to the next. Clean and disinfect calving pens between uses, paying attention to surfaces that contact the calf’s mouth or navel. Provide footbaths with an approved disinfectant at the entrance to the calving area, and require workers to change boots or use disposable coveralls when handling sick calves. USDA APHIS resources on [livestock and poultry disease](https://www.aphis.usda.gov/livestock-poultry-disease) emphasize that fomite transmission is a common failure point in scours control. Worker safety is linked to hygiene because several calving,scours pathogens,*Salmonella*, *Cryptosporidium parvum*, and verotoxigenic *E. coli*,are zoonotic. Use gloves when handling diarrheic calves or colostrum, and wash hands thoroughly. The [USDA National Animal Health Monitoring System](https://www.aphis.usda.gov/livestock-poultry-disease/nahms) provides survey data on management practices, noting that operations with written biosecurity protocols have fewer scours outbreaks. ## Observational Monitoring and Record Keeping Daily observation is the backbone of early detection. Train personnel to check each calf for attitude, suckling behavior, navel condition, and manure consistency. Use a fecal scoring system: firm pellets are normal, pasty or liquid feces warrant monitoring and, if accompanied by depression or dehydration, immediate veterinary consultation. [PubMed record 2178741](https://pubmed.ncbi.nlm.nih.gov/2178741/) established that early intervention reduces mortality from neonatal diarrhea in beef calves. Records must capture: cow identity, calving date, colostrum intake (time and amount), vaccinations given, and any illness with diagnostic results. Such data allow producers to identify failure patterns,for example, high scours rates in calves from heifers, or outbreaks after a specific weather event. The [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) framework encourages record,based decision making to improve herd health. ## Welfare Considerations and Stress Reduction Calf welfare is compromised by scours through pain, dehydration, and metabolic derangement. Preventive measures such as clean bedding, wind protection, and consistent feeding schedules reduce stress. Avoid castration or dehorning until after weaning to prevent immunosuppression. Provide pain management if scours leads to tenesmus or joint involvement. While evidence on specific analgesics in beef calves is limited, the [WOAH code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) states that welfare should be assessed on outcome measures like body condition, behavior, and disease prevalence. ## Failure Patterns and Veterinary Response Plans Common failure patterns in scours prevention include inadequate passive transfer, delayed detection, and contaminated environment. A review of antimicrobial resistance in calf diarrhea ([PubMed record 35243126](https://pubmed.ncbi.nlm.nih.gov/35243126/)) highlights that inappropriate antibiotic use worsens outcomes. Therefore, a veterinary response plan must outline diagnostic steps,fecal culture, PCR panels, or electron microscopy,before treatment. This plan should be written and reviewed annually with the herd veterinarian. The plan should detail: criteria for treating a scouring calf (dehydration degree, ability to stand), oral fluid administration, and re,evaluation intervals. For severe cases, subcutaneous or intravenous fluids and systemic anti,inflammatories may be needed. [PubMed record 35146377](https://pubmed.ncbi.nlm.nih.gov/35146377/) evaluated a subunit vaccine against *Cryptosporidium parvum*, a pathogen often associated with persistent scours in beef calves, the study recommended integrating vaccination (when available) with hygiene improvements. The [Elsevier abstract on a novel Cryptosporidium vaccine](https://api.elsevier.com/content/abstract/scopus_id/85215675853) (2025) notes potential but calls for field,level validation. If outbreak patterns recur,for example, scours appear every year after a specific weather pattern,re,evaluate calving season timing, shelter adequacy, or vaccination schedule. The [Merck Veterinary Manual](https://www.merckvetmanual.com/) advises that multivalent vaccines may need to be tailored to the herd’s pathogen prevalence. ## Practical Monitoring for Continuous Improvement Implement a weekly audit of calving environment and worker adherence to protocols. Use a simple checklist: bedding depth, pen drainage, footbath condition, colostrum availability. Monitor mortality rate (calves that die within 30 days due to scours) and morbidity rate (treated cases). Compare against benchmarks from regional USDA NAHMS reports. For each case of scours that requires treatment, document the calf’s age, clinical signs, and outcome. These data reveal whether the prevention program is adequate or needs adjustment. In summary, preventing beef calf scours requires an integrated approach: clean facilities, timely and adequate colostrum, appropriate vaccination, rigorous hygiene, constant observation, and a written veterinary response plan. No single measure suffices, the interaction between environment, nutrition, and management determines success. Uncertainty remains regarding the optimal timing of booster vaccines in range operations and the efficacy of emerging technologies. Producers should work closely with a veterinarian to adapt these principles to their specific climate, herd size, and pathogen risk. ## Health Observation and Biosecurity Daily health observation is the cornerstone of early detection. Farm personnel must be trained to assess each calf at least twice daily for signs of depression, reduced suckling, sunken eyes, or loose feces. Rectal temperature measurement can identify pyrexia, though some calves with scours may remain normothermic. The [Merck Veterinary Manual: Neonatal Diarrhea](https://www.merckvetmanual.com/) emphasizes that prompt identification of sick calves allows early intervention and reduces pathogen shedding. Any calf with abnormal feces should be moved to a dedicated isolation pen immediately to interrupt fecal,oral transmission. Biosecurity protocols extend beyond pen hygiene. Isolation of diarrheic calves for at least seven days after clinical recovery is recommended by the [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/). Separate boots, coveralls, and feeding equipment should be used for the isolation area, and footbaths with effective disinfectants (e.g., chlorhexidine or accelerated hydrogen peroxide) should be placed at pen entrances. [USDA APHIS Livestock and Poultry Disease](https://www.aphis.usda.gov/livestock-poultry-disease) resources note that restricting visitor access and maintaining a clean calving area reduce introduction of novel pathogens. Equipment such as esophageal feeders and calf bottles must be thoroughly cleaned and dried between uses. ## Diagnostic and Veterinary Escalation When scours incidence exceeds five percent of neonatal calves within a two-week period, veterinary consultation is warranted. Diagnostic workup begins with fecal collection from three to five acutely ill, untreated calves. Laboratory testing can differentiate viral agents (bovine rotavirus, coronavirus), bacterial causes (*Escherichia coli* K99, *Salmonella* spp.), and protozoan parasites (*Cryptosporidium parvum*, *Eimeria* spp.). A [PubMed record on rotavirus epidemiology](https://pubmed.ncbi.nlm.nih.gov/39858132/) illustrates that rotavirus remains a frequent contributor, while [another study on *Cryptosporidium* prevalence](https://pubmed.ncbi.nlm.nih.gov/35146377/) highlights the importance of this protozoan in young calves. The [Merck Veterinary Manual](https://www.merckvetmanual.com/) describes the use of ELISA and PCR panels for rapid etiologic diagnosis. Veterinary escalation should include a herd-level plan that reviews vaccination status, colostrum management, and environmental risk factors. The scoping review on [vaccination for neonatal calf diarrhea in cow-calf operations](https://api.elsevier.com/content/abstract/scopus_id/85124995633) indicates that while some vaccines (e.g., against rotavirus, coronavirus, *E. coli*) are available, evidence for their efficacy in extensive beef systems is limited, and decisions should be based on local pathogen prevalence. Uncertainty remains regarding the optimal timing and route for maternal vaccination, a veterinarian can interpret diagnostic results and tailor a response that may include antimicrobial therapy for bacterial cases (guided by culture and sensitivity) or supportive care for viral and protozoal infections. ## Uncertainty and Sustainability Many preventive practices lack robust randomized controlled trials in beef calf populations. For example, the role of probiotics, prebiotics, or plant,based additives is not well supported by published evidence. The [USDA National Animal Health Monitoring System](https://www.aphis.usda.gov/livestock-poultry-disease/nahms) provides on,farm survey data but does not offer controlled efficacy estimates. Sustainability of scours prevention depends on integrating low,cost, high,impact measures (adequate colostrum, clean calving pens) with ongoing monitoring. The [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) guidance highlights that reducing calf mortality improves economic returns and reduces the environmental footprint per kilogram of beef. A sustainable program is one that is adapted annually based on morbidity records, diagnostic trends, and veterinary input. --- ## Frequently Asked Questions **1. What is the most common cause of scours in beef calves?** Multiple pathogens are involved. Rotavirus and *Cryptosporidium parvum* are frequently identified in younger calves, while *E. coli* K99 and coronavirus appear in the first week. Mixed infections are common, and diagnostic testing is needed to confirm the cause. **2. At what age should a scours vaccine be given to the dam?** Maternal vaccination timing varies by product. Most vaccines are given to cows four to six weeks pre,calving to boost colostral antibody levels. Consult a veterinarian for product,specific recommendations based on herd calving season. **3. Can scours be completely prevented on a cow,calf operation?** Complete prevention is unlikely because multiple pathogens and environmental stressors contribute. The goal is to reduce incidence and severity through colostrum management, hygiene, and prompt intervention. **4. How long should a calf with scours be isolated?** At least seven days after clinical signs resolve. Continue isolating until feces are formed and the calf is eating well. Use separate equipment and avoid moving the calf back to a clean pen too soon. **5. What diagnostic tests are most useful for a scours outbreak?** Fecal antigen ELISA or PCR panels for rotavirus, coronavirus, *E. coli* K99, *Cryptosporidium*, and *Salmonella* are standard. Fecal flotation may detect coccidia. Culture and sensitivity are indicated if bacterial infection is suspected. **6. Is it safe to use a scours vaccine in pregnant cows?** Most commercial scours vaccines are labeled for use in pregnant cows and are safe when given according to label directions. Always verify with a veterinarian, especially if handling cows in late gestation. **7. Does weather affect scours risk even after implementing hygiene?** Yes. Extreme cold, heat, or wet conditions can stress calves and reduce colostrum intake. Muddy calving pens increase pathogen load. Weather,related risk is managed by providing sheltered, dry, and clean calving areas. **8. How often should calving pens be disinfected between calves?** Between each calf if possible, especially in outbreak situations. Remove all organic matter, then apply an approved disinfectant (e.g., chlorine,based or accelerated hydrogen peroxide). Allow pens to dry completely before introducing a new cow,calf pair. --- *This information is for educational use in livestock health management. Work directly with a licensed veterinarian to develop a scours prevention plan that fits the specific pathogen profile, herd size, and facilities on your operation. Veterinary guidance is essential for accurate diagnosis, treatment decisions, and compliance with local animal health regulations.* ## At a Glance Effective prevention of beef calf scours rests on a foundation of consistent management practices applied from the pre-calving period through the first weeks of life. The table below presents core preventive strategies across critical areas. These domains are interdependent, a lapse in one area can undermine efforts in others, regardless of overall herd health status. | Domain | Primary Preventive Actions | Rationale | |--------|---------------------------|-----------| | Calving Area Hygiene | Provide a clean, dry, and well-drained calving environment. Remove soiled bedding and manure regularly. Rotate calving pastures to reduce pathogen buildup. | Reduces exposure to infectious agents such as rotavirus, coronavirus, and *E. coli* in the immediate environment of the newborn calf. | | Colostrum Delivery | Ensure each calf ingests adequate colostrum from its dam within the first 6 hours of life. Verify passive transfer using acceptable farm-level methods. | Provides essential maternal antibodies that protect against enteric pathogens during the critical window before the calf develops its own [adaptive immunity](/knowledge/veterinary-medicine/veterinary-pathology-microbiology/adaptive-immunity-b-cell-and-t-cell-responses). | | Dam Vaccination | Administer pre-calving vaccines against common scours pathogens (rotavirus, coronavirus, *E. coli*, clostridia) according to label directions. | Boosts antibody levels in colostrum, specifically targeting pathogens prevalent in the herd or region. | | Nutritional Support for Dam | Maintain dams on a balanced ration during late gestation, focusing on adequate energy, protein, and trace minerals such as selenium and vitamin E. | Supports fetal development, colostrum quality, and overall maternal health, which influences calf vigor and antibody uptake. | | Monitoring and Early Care | Observe calves daily for signs of depression, reduced suckling, or loose feces. Establish a protocol for oral electrolyte therapy for mild cases. | Allows prompt intervention before dehydration and acidosis progress, reducing mortality and the need for more intensive veterinary care. | ## Frequently Asked Questions **Q1. How soon after birth should a calf receive colostrum?** Colostrum should be ingested within the first 2 to 6 hours of life. This interval is critical because the calf’s intestinal ability to absorb immunoglobulins declines sharply after the first few hours and is largely lost by 24 hours of age. **Q2. What volume of colostrum does a calf typically require?** A sufficient volume is generally 10 to 15 percent of the calf’s body weight, often between 2 to 4 quarts per feeding. Newborn calves should receive this amount in multiple feedings within the first 12 hours to ensure adequate passive transfer. **Q3. How can I assess colostrum quality without laboratory testing?** On-farm methods include using a colostrometer or refractometer to estimate immunoglobulin concentration. Colostrum that is thick, creamy, and of high yellow-orange color from a mature dam tends to be of good quality. However, visual assessment alone is not reliable. **Q4. What are the earliest signs of scours in calves?** Early signs include lethargy, reluctance to stand or nurse, reduced tail tone, and loose or watery feces that may be yellow, white, or blood-tinged. Calves may also show a sunken appearance around the eyes due to dehydration. **Q5. When should electrolyte therapy be started for a scouring calf?** Oral electrolyte solutions should be initiated as soon as scours are detected and the calf is still able to stand and suckle. Delay can worsen dehydration, metabolic acidosis, and electrolyte imbalances, increasing the risk of death. **Q6. Can scours be prevented solely through vaccination?** No. Vaccination of the dam is a vital tool but must be combined with proper calving area hygiene, adequate colostrum intake, and supportive nutrition. Vaccination does not eliminate all pathogen exposure, and its efficacy depends on consistent colostrum delivery. **Q7. What is the role of calving pasture rotation in scours prevention?** Rotating calving pastures reduces the accumulation of infectious agents in the environment. Moving cows to fresh, clean pasture for each calving season lowers the pathogen load that newborn calves encounter, especially for pathogens that persist in soil or manure. **Q8. Are there specific nutritional deficiencies that increase scours risk?** Deficiencies in selenium, vitamin E, copper, and zinc in the dam during late gestation can impair neonatal immune function and colostrum quality. Adequate levels of these nutrients support both passive and [innate immunity](/knowledge/veterinary-medicine/veterinary-pathology-microbiology/innate-immunity-receptors-and-effector-mechanisms) in the calf. ## Environmental and Nutritional Management for Scours Prevention ### Calving Area Sanitation and Pasture Strategies The calving environment directly influences the pathogen pressure that a newborn calf faces. Clean, well-drained calving grounds with good sun exposure help reduce the survival of viruses and bacteria. Bedded areas, if used, must be kept dry and replenished frequently. Manure accumulation should be avoided, particularly in confined calving facilities. For operations using pasture calving, moving cattle to a fresh pasture that has not been used for calving in the previous season is advised. This practice lowers the concentration of pathogens such as *Cryptosporidium parvum* oocysts and enterotoxigenic *E. coli* that persist in the soil. ### Colostrum Management Beyond First Feeding Colostrum management extends beyond the initial feeding. The dam’s udder should be clean and free of manure contamination to reduce bacterial exposure during nursing. For calves that fail to nurse effectively, assisted feeding of colostrum from a clean source is necessary. Pooled colostrum from multiple cows, if used, should be stored properly and warmed gently to avoid destroying immunoglobulins. Care must be taken to feed only colostrum from dams that have no signs of mastitis or systemic illness, as antibodies can be diluted or absent in such cases. ### Nutritional Support for Dam and Calf Interactions The dam’s body condition at calving affects calf vigor and the ability to stand and nurse promptly. Cows that are overconditioned or underconditioned may produce lower quality colostrum or experience prolonged labor, which can delay suckling. Feeding a balanced ration during the last third of gestation that meets protein, energy, and mineral requirements supports optimal colostrum synthesis. After birth, the calf’s own nutrition begins with colostrum and transitions to milk. Ensuring that the dam has adequate feed and water after calving maintains milk production, which in turn supports the calf’s hydration and gut health during the early postnatal period. ## Related Farming Guides - [Beef Cattle Farming Forage Reproduction Calving Health Signals And Herd Management](/knowledge/animal-farming/beef-cattle/beef-cattle-farming-forage-reproduction-calving-health-signals-and-herd-management) - [Beef Cattle Body Condition Scoring](/knowledge/animal-farming/beef-cattle/beef-cattle-body-condition-scoring) - [Calving Management For Beef Herds](/knowledge/animal-farming/beef-cattle/calving-management-for-beef-herds) - [Rotational Grazing For Beef Cattle](/knowledge/animal-farming/beef-cattle/rotational-grazing-for-beef-cattle) - [Beef Herd Biosecurity Plan](/knowledge/animal-farming/beef-cattle/beef-herd-biosecurity-plan) ## Related Clinical & Scientific Guides * [Cattle Head Gate Selection and Adjustment](/knowledge/animal-farming/beef-cattle/cattle-head-gate-selection-and-adjustment) * [Beef Cattle Handling Facility Flow](/knowledge/animal-farming/beef-cattle/beef-cattle-handling-facility-flow) * [Beef Cattle Maternity Pen Design: Comfort and Monitoring](/knowledge/animal-farming/beef-cattle/beef-cattle-maternity-pen-design-comfort-monitoring) ## References and Further Reading - [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) - [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) - [USDA APHIS Livestock and Poultry Disease](https://www.aphis.usda.gov/livestock-poultry-disease) - [Merck Veterinary Manual](https://www.merckvetmanual.com/) - [USDA National Animal Health Monitoring System](https://www.aphis.usda.gov/livestock-poultry-disease/nahms) > This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.