# Weaning Transition: Feed and Water Management ## Key Takeaways - **Pre-weaning creep feeding for 10-14 days is critical** to familiarize piglets with dry feed, stimulate digestive enzyme adaptation, and reduce post-weaning intake depression. Insufficient creep intake (<200g/piglet) necessitates a more intensive post-weaning feeding strategy. - **Post-weaning diets must be highly palatable and digestible**, incorporating milk products, plasma proteins, and acidifiers to support gut health and protein digestion, while minimizing acid-binding capacity to inhibit *E. coli*. Feed form (meal vs. pellet) and processing temperature are crucial to avoid degradation of sensitive nutrients. - **Optimal water management is paramount**, requiring at least one nipple drinker per 10 piglets with a flow rate of ≥0.5 L/min, adjusted to shoulder height for all piglets. Water temperature below 10°C can deter intake, and water lines must be clean to prevent biofilm formation. - **Environmental control is essential**, maintaining room temperatures at 28-30°C in the first week, with draft-free conditions and floor heating or deep straw to prevent chilling. Huddling or shivering indicates thermal stress, diverting energy from digestion and leading to reduced feed intake. - **Troubleshooting intake failure on days 1-2 requires immediate intervention**, including oral electrolyte support for dehydration and reassessment of temperature or diet if diarrhea or huddling is observed. Persistent issues (>2-3% mortality) warrant veterinary investigation for infectious agents like hemolytic *E. coli* or rotavirus. - **Social mixing stress can be mitigated** by limiting group size (ideally <3 litters), providing ample feeders and drinkers to reduce competition, and promptly isolating sick or injured piglets to a hospital pen with enhanced environmental support. --- Weaning abruptly removes piglets from the sow, maternal milk, and familiar environment, imposing a combined nutritional, microbial, and social stress that severely depresses feed and water intake. The resulting gap between energy demand and nutrient supply drives weight loss, gut barrier dysfunction, and susceptibility to enteric pathogens. Managing this transition requires coordinated pre- and post-weaning feeding strategies, drinker design and placement, and attention to thermal and social conditions that either encourage or suppress voluntary intake. This article provides the management framework for stabilizing intake during the first week after weaning, with emphasis on feed form, water accessibility, environmental transition, and troubleshooting when intake falls below requirements. ## At a Glance | Aspect | Key Management Point | |--------|----------------------| | Pre-weaning intake | Creep feeding for 10,14 d before weaning familiarizes piglets with dry feed and stimulates enzyme adaptation | | Post-weaning diet | Highly palatable, complex starter diet with milk products, plasma proteins, and low acid-binding capacity | | Water supply | At least one nipple drinker per 10 piglets, flow rate ≥ 0.5 L/min, accessible height adjusted to shoulder level | | Environmental transition | Room temperature at 28,30 °C in first week, floor heating or deep straw to reduce belly chill, stable group after mixing | | Troubleshooting | Day 1,2 intake failure requires oral electrolyte support, diarrhea or huddling indicates temperature or diet problem | ## System Context Weaning typically occurs at 21,28 days of age in commercial systems, a period when gut anatomy and digestive enzyme capacity are still maturing. The shift from a high-fat, high-lactose liquid diet to a low-fat, high-starch or high-protein solid feed taxes the limited pancreatic amylase and intestinal peptidase activities ([The biological stress of early weaned piglets](https://api.elsevier.com/content/abstract/scopus_id/84887523490)). Simultaneously, maternal antibody protection wanes and the piglet loses passive immunity from colostrum, while the developing gut microbiota is destabilized by the loss of milk-borne oligosaccharides and by social mixing of litters, a combination that predisposes to opportunistic Escherichia coli proliferation and post-weaning diarrhea ([Escherichia coli in postweaning diarrhea in pigs: an update on bacterial types, pathogenesis, and prevention strategies](https://api.elsevier.com/content/abstract/scopus_id/26044455874), [Gut Microbiota Dysbiosis in Postweaning Piglets: Understanding the Keys to Health](https://api.elsevier.com/content/abstract/scopus_id/85020259842)). The acute reduction in energy intake,often less than half of pre-weaning levels for the first 48 hours,triggers catabolism of body reserves and compromises intestinal villus height, reducing absorptive surface area and further limiting nutrient uptake ([Nutritional management of gut health in pigs around weaning](https://api.elsevier.com/content/abstract/scopus_id/34247846235)). This cycle of low intake, gut damage, and pathogen overgrowth is the central challenge. Individual piglets vary greatly in how quickly they start eating, lighter, younger piglets or those that consumed little creep feed before weaning are at highest risk. Water intake also drops because piglets must learn to locate and operate unfamiliar drinkers. The interaction of dry feed consumption and water availability directly affects dry matter intake and hydration status. Observing that many piglets spend the first 12,24 h without drinking emphasizes the need for careful drinker training and flow verification. When mortality or chronic ill-thrift occurs in more than 2,3% of weaned pigs, professional veterinary investigation is warranted to rule out infectious agents (e.g., hemolytic E. coli, rotavirus) or management factors that require correction. ## Planning Decisions Decisions made before weaning affect post-weaning intake more than any single intervention after placement. Creep feeding should begin 10,14 days before weaning using a fresh, highly palatable starter offered in a shallow pan or trough that the sow cannot access. Daily removal of stale feed and provision of small amounts several times per day encourages investigation. Scent or flavor imprinting agents may promote later recognition, though evidence of consistent benefit is mixed. If creep feed consumption per piglet is less than 200 g total by weaning, the piglet has not developed sufficient familiarity with solid feed, this signals the need for a more intensive post-weaning approach such as gruel feeding or increasing the frequency of fresh feed offers. Post-weaning diet selection should favor a highly digestible starter with milk-derived ingredients, cooked cereals, and animal plasma proteins, which provide immunoglobulins and palatability. Acidifiers (e.g., organic acids or their salts) lower gastric pH to assist protein digestion and inhibit pH-sensitive E. coli ([PubMed record 42269439](https://pubmed.ncbi.nlm.nih.gov/42269439/)). The feed form,meal, crumble, or pellet,influences intake: pellets reduce dust and sorting and may improve consumption in the first week, but caution is required to avoid overprocessing (excess fines) or high pellet temperature that degrades sensitive proteins. Minimizing the number of diet changes in the first two weeks reduces the risk of feed refusal. The role of antibiotic growth promoters has diminished in many regions due to regulations and antimicrobial resistance concerns, instead, zinc oxide at pharmacological levels (approved in some countries) or alternative probiotic and prebiotic blends are used to stabilize gut health, although efficacy varies ([PubMed record 42180805](https://pubmed.ncbi.nlm.nih.gov/42180805/)). In the absence of regulatory guidance, the herd veterinarian should determine the appropriate prophylactic strategy based on local disease prevalence and diagnostic evidence. Water management planning must be part of the same decision process as feeding. Nipple drinkers placed at shoulder height of the smallest piglet (approximately 25,30 cm above the floor for 7,kg piglets) with a flow rate of at least 0.5 L/min are required. A common mistake is setting drinker height for the median piglet, leaving the smallest individuals unable to reach or activate the valve. Additional cups or troughs in the first two days can aid transition. Cleaning water lines and checking for biofilm should occur before stocking, because residual sanitizer or stagnant water reduces intake. The temperature of drinking water matters: cold water (below 10 °C) deters intake in the first days, so warm water supply or insulated pipes in cool climates deserve consideration ([PubMed record 42087998](https://pubmed.ncbi.nlm.nih.gov/42087998/)). The veterinarian or extension specialist should be consulted when piglets fail to drink within 24 hours despite accessible and properly functioning drinkers. ## Core Management Framework The integrated approach to the weaning transition rests on three pillars: maintaining voluntary feed and water intake, controlling thermal demand, and stabilizing social structure. Management begins at placement and requires daily monitoring for the first week. Feed should be offered ad libitum from the moment piglets enter the nursery unit, but the feeder must be kept at less than one-third full to prevent spoilage and overfilling. Floor feeding a small amount (about 20 g per piglet) on a clean mat or in the feeder pan during the first 12 hours encourages exploration and reduces competition at the feeder. Observations from research indicate that piglets offered a gruel (one part starter to three parts water) for the first 48 hours consume more total dry matter than those offered dry feed alone, because the familiar liquid texture bridges the gap between milk and solid feed ([PubMed record 42105246](https://pubmed.ncbi.nlm.nih.gov/42105246/)). However, gruel must be prepared fresh every 4,6 hours to avoid spoilage and diarrhea. If gruel feeding is not practical, frequent fresh feed delivery (four to six times daily) achieves similar benefit for intake. Feed cleanout and measurement of disappearance per pen should start on day 2, if consumption falls below 10 g per piglet per day, intervention is necessary. Water availability extends beyond drinker count and flow. In the first 2 days, a temporary water dish or a shallow pan placed near the feeder helps piglets locate water. Observations of drinker use behavior show that piglets prefer to drink soon after eating, thus positioning drinkers near feeders but not directly above them avoids wet feed. Flow rate testing with a graduated cylinder should be performed at each drinker, because line pressure variations and worn valves reduce flow below acceptable thresholds (professional judgment suggests 0.5,1.0 L/min depending on drinker type). If flow is insufficient, piglets spend more time at the drinker and consume less water during each visit. Thermal environment interacts powerfully with intake. The lower critical temperature of a newly weaned piglet is approximately 28,30 °C, and draft-free conditions are essential. Heavy straw bedding or insulated rubber mats reduce conductive heat loss to concrete floors. Overhead heating lamps or brooders must be adjusted to avoid creating hot spots that drive piglets to the slatted area, where drafts increase chilling. When piglets huddle or shiver, feed intake fails because blood is diverted from digestion to thermogenesis. Room temperature should be decreased gradually (about 1,2 °C per week) but may need to be raised again if seasonal weather causes a room temperature drop below 26 °C. A thermometer at piglet height,not at human height,should be used for accurate monitoring. Social mixing of litters is standard practice, but it imposes an immediate stress that depresses intake. Mixing pigs from more than three litters in a single pen increases fighting and reduces feeder access for low-ranking individuals. If possible, form stable groups by mixing littermates with only one other litter. In larger groups, additional feeders and drinkers must be provided so that timid piglets can eat without competition. Sick pigs that are smaller or injured should be moved to a separate hospital pen with a higher temperature (30,32 °C), easier feed access, and a shallow water source, regrouping with healthy pigs after recovery is rarely successful if the health problem originated from persistent intake failure. When a pen of piglets shows less than 10% feeder activity during the first 24 hours or when fecal consistency becomes watery, professional guidance from a veterinarian is required. Electrolyte solutions can be provided orally in a pan for 12,24 hours to restore hydration before attempting feed resumption. Antimicrobial therapy should be diagnosed and prescribed, not applied prophylactically, to avoid accelerating resistance. Environmental modifications, such as adding a small amount of familiar nesting material or providing a soft resting pad, may reduce stress and stimulate exploratory feeding. Record-keeping that tracks per-pen feed disappearance and water meter readings provides objective data for troubleshooting and for evaluating planned changes in diet or management protocol from one batch to the next. Uncertainty remains about the optimal combination of feed additives and dietary complexity for each herd, controlled on,farm trials with a negative control pen, overseen by a nutritionist or extension educator, offer the most reliable guide. ### Pre-Weaning Feed and Water Access Creep feeding during the last 1,2 weeks of lactation provides an opportunity for piglets to become familiar with solid feed before weaning. The [Merck Veterinary Manual](https://www.merckvetmanual.com/) notes that creep feeders should be placed in a separate, heated area of the farrowing crate to encourage exploration. Placement and hygiene are critical, stale or soiled feed will be avoided. Water availability in the farrowing room is equally important. Providing a shallow pan or a low-flow nipple drinker trains piglets to drink independently. Without prior exposure, post-weaning water intake may be inadequate, leading to dehydration and reduced feed consumption. The transition from liquid milk to dry feed and water represents a major physiological and behavioral challenge. ### Post-Weaning Environment and Facilities After weaning, piglets are moved to a nursery with markedly different thermal and social conditions. Ambient temperature should be maintained at 28,30°C for the first week, with localized heat sources such as heat lamps or pads. [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) emphasizes that draft-free, well-ventilated facilities reduce respiratory stress. Flooring must provide secure footing to prevent injury, fully slatted floors should have gap widths appropriate for weaned piglets to avoid foot damage. Pen density affects competition at feeders and drinkers. Overstocking increases aggression and reduces intake. Adequate pen space,typically 0.2,0.3 m² per piglet,allows for separate resting, feeding, and elimination areas. Hygiene is paramount: cleaning and disinfection between groups reduces pathogen load and the risk of post-weaning diarrhea. ### Feed Management and Transition Diets Nutritional management during weaning aims to minimize the drop in feed intake while supporting gut health. A highly palatable starter diet, often containing milk products, cooked cereals, and simple sugars, is offered for the first week. The [Nutritional management of gut health in pigs around weaning](https://api.elsevier.com/content/abstract/scopus_id/34247846235) review highlights that ingredient quality and processing (e.g., extrusion, pelleting) influence digestibility and voluntary intake. Gradually replacing milk-based ingredients with plant proteins over 7,14 days allows the digestive system to adapt. Abrupt changes in diet composition can trigger enteric disease. Feeding frequency matters. Offering small meals multiple times per day (e.g., 4,6 feedings) stimulates intake and reduces feed wastage. Ad libitum feeding from day 3,4 post-weaning is common, but careful monitoring of feeder adjustment is needed to prevent bridging or spoilage. Feeders should be checked twice daily for freshness and cleanliness. ### Water Management and Drinker Design Water is the most critical nutrient during the weaning transition. Inadequate water intake directly reduces feed consumption and predisposes piglets to dehydration and constipation. The [USDA National Animal Health Monitoring System](https://www.aphis.usda.gov/livestock-poultry-disease/nahms) recommends providing one nipple drinker per 10 piglets, with a flow rate of at least 500,800 mL/min. Drinker height should be adjusted to shoulder level to ensure easy access. Piglets accustomed to pan water may need retraining, placing a small dish under the nipple for the first few days can help. Water quality must be tested regularly. High levels of minerals, bacteria, or organic matter can deter drinking. Chlorination or acidification may be used when water quality is questionable, but these interventions require veterinary guidance because they can affect palatability. Automatic water meters allow recording of daily consumption, a key monitoring parameter. ### Gut Health and Microbiota Management Weaning disrupts the intestinal microbiota due to diet change, stress, and withdrawal of maternal antibodies. [Gut Microbiota Dysbiosis in Postweaning Piglets: Understanding the Keys to Health](https://api.elsevier.com/content/abstract/scopus_id/85020259842) explains that a loss of beneficial bacteria (e.g., *Lactobacillus* spp.) and proliferation of enterotoxigenic *Escherichia coli* (ETEC) often precede diarrhea. Nutritional strategies to stabilize the microbiota include inclusion of prebiotics (e.g., mannan-oligosaccharides), probiotics, or organic acids in the feed or water. The [Escherichia coli in postweaning diarrhea in pigs: an update on bacterial types, pathogenesis, and prevention strategies](https://api.elsevier.com/content/abstract/scopus_id/26044455874) abstract underscores that not all strains respond to the same interventions, diagnostic testing is essential for targeted control. Zinc oxide at pharmacological levels has been used historically to reduce diarrhea, but concerns about environmental contamination and antimicrobial resistance have led to restrictions in many regions. Producers should consult local regulations and veterinary advisors before using any medicated feed additives. ### Welfare and Behavioral Indicators The [The biological stress of early weaned piglets](https://api.elsevier.com/content/abstract/scopus_id/84887523490) article describes that weaning triggers cortisol elevation, reduced feed intake, and increased abnormal behaviors such as belly nosing and ear sucking. Welfare assessment should include daily monitoring of posture, activity, and vocalizations. Piglets that are huddled, lethargic, or showing sunken flanks likely have insufficient feed or water intake. Aggression at feeding is common, using multiple feeding spaces (at least one per 4,5 piglets) reduces bullying. Environmental enrichment,such as hanging chains, plastic balls, or chewable substrates,can reduce redirected oral behaviors. However, enrichment objects must be cleaned regularly to prevent fomite transmission of pathogens. ### Failure Patterns and Troubleshooting **Anorexia and starvation:** Piglets that fail to start eating within 24,48 hours post-weaning are at high risk of energy deficiency. Common causes include unpalatable feed, incorrect feeder placement, or competition. Providing a small amount of the familiar creep feed mixed with starter diet can bridge acceptance. If more than 5% of a group shows no interest in feed, the feed composition or environment should be reassessed. **Dehydration:** Piglets that are not drinking will appear gaunt, with dry mucous membranes and reduced skin turgor. Check drinker functionality and flow rate daily. In groups with high incidence, consider adding electrolyte solutions to the water for 48,72 hours, but only under veterinary supervision. **Post-weaning diarrhea (PWD):** PWD occurs most commonly 5,10 days after weaning. The [Gut Microbiota Dysbiosis](https://api.elsevier.com/content/abstract/scopus_id/85020259842) review notes that diarrhea is often preceded by a drop in feed intake and a rise in intestinal pH. Early intervention includes removing spoiled feed, checking water hygiene, and reducing dietary protein level temporarily. Diagnostic sampling (fecal culture, PCR) should be performed to identify the causative agent (e.g., ETEC, rotavirus, *[Lawsonia intracellularis](/knowledge/bacteria/livestock-bacteria/lawsonia-intracellularis)*). Treatment decisions must be based on sensitivity results. **Mortality:** If mortality exceeds 2,3% in the first two weeks post-weaning, a thorough investigation is warranted. Common contributors include chronic starvation, severe PWD, or concurrent respiratory disease. Necropsy by a veterinarian is recommended. ### Practical Monitoring and Records Systematic record keeping enables early detection of problems. Daily records should include: - Feed disappearance (kg/pen) and water consumption (L/pen). - Number of piglets treated for diarrhea or other conditions. - Body weight of a sample of piglets weekly. - Mortality and removal dates. The [Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds](https://api.elsevier.com/content/abstract/scopus_id/85045412140) abstract, while focused on sows, reinforces that weaning management is part of an integrated production chain. Records on weaning age, weight, and subsequent growth performance help refine strategies. For example, piglets weaned at less than 5.5 kg often have lower feed intake and higher mortality. Adjusting weaning weight targets may be necessary. ### Worker and [Food Safety](/knowledge/bacteria/livestock-bacteria/cooking-chicken-bacteria-prevention) Considerations Personnel handling weaned piglets should use dedicated footwear and coveralls for each nursery room to prevent disease transmission. Hand-washing stations and boot baths with disinfectant are essential. Workers should be trained to recognize signs of ill health and to report treatment events accurately to maintain withdrawal periods for any medications used. From a food safety perspective, minimizing the use of antibiotics in the nursery reduces the risk of antimicrobial residues and the development of resistant bacteria. The [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) outlines principles for prudent antimicrobial use. Producers should implement biosecurity plans that include all-in/all-out pig flow, cleaning and disinfection protocols, and visitor restrictions. These measures reduce pathogen circulation and the need for therapeutic interventions. Finally, the interplay between environment, nutrition, and management means that no single factor explains success or failure. Multi-factorial problems require systematic investigation and adjustment. Consulting with a veterinarian and a swine nutritionist is recommended when weaning problems persist beyond 2,3 groups. ## Health Observation and Biosecurity Closely observe weaned piglets for signs of disease, dehydration, or behavioral distress during the first 7,10 days post-weaning. Daily monitoring should include checking feed disappearance, water intake, fecal consistency, and activity level. Lethargy, huddling, sunken flanks, and pasty or watery feces are early indicators of problems. Diarrhea in the immediate post-weaning period is a frequent sign of enteric infection, nutritional upset, or water quality issues. The [Merck Veterinary Manual](https://www.merckvetmanual.com/) emphasizes that postweaning diarrhea is often multifactorial, involving *Escherichia coli* strains, rotavirus, or dietary antigens. An update on bacterial types and pathogenesis, as reviewed in a 2005 paper, notes that enterotoxigenic *E. coli* remains a primary cause of postweaning diarrhea, particularly in herds with suboptimal hygiene or abrupt feed transition ([Escherichia coli in postweaning diarrhea in pigs: an update on bacterial types, pathogenesis, and prevention strategies](https://api.elsevier.com/content/abstract/scopus_id/26044455874)). Therefore, any sudden increase in diarrhea prevalence warrants prompt investigation and supportive care. Biosecurity measures should be reinforced during the weaning flow. All-in/all-out management by room or barn reduces pathogen carryover between groups. Cleaning and disinfection of nursery pens between batches is critical, organic matter removal precedes effective disinfection. The [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) provides general principles for cleaning and disinfection in livestock facilities, though specific protocols should be adapted to farm size and pathogen risk. Personnel should change boots and coveralls between farrowing and nursery units, and handwashing or glove use before handling piglets is advised. The [USDA APHIS Livestock and Poultry Disease](https://www.aphis.usda.gov/livestock-poultry-disease) and [USDA National Animal Health Monitoring System](https://www.aphis.usda.gov/livestock-poultry-disease/nahms) provide surveillance data and outbreak reporting frameworks that can guide regional biosecurity planning. ## Diagnostic and Veterinary Escalation When diarrhea, decreased feed intake, or mortality exceed expected baseline levels, veterinary consultation is recommended. Diagnosis begins with clinical examination, review of feed and water management records, and necropsy of acutely ill or dead piglets. Fecal samples and intestinal contents can be submitted for [bacterial culture](/blog/guides/bacterial-culture), PCR panels for enteric pathogens, and sensitivity testing. The 2005 review on *E. coli* in postweaning diarrhea emphasizes that antimicrobial susceptibility profiles vary between farms and over time, making culture and sensitivity essential before selecting treatment ([Escherichia coli in postweaning diarrhea in pigs: an update on bacterial types, pathogenesis, and prevention strategies](https://api.elsevier.com/content/abstract/scopus_id/26044455874)). Uncertainty remains about the relative contribution of viral versus bacterial etiologies in any given outbreak, therefore, an empirical treatment protocol should be validated with diagnostic results. The [The biological stress of early weaned piglets](https://api.elsevier.com/content/abstract/scopus_id/84887523490) highlights that weaning triggers a glucocorticoid and catecholamine response, which can transiently suppress immune function and increase susceptibility to pathogens. Hence, supportive therapies such as oral rehydration solutions, electrolytes, and easily digestible starter diets may be beneficial even before definitive diagnosis. ## Uncertainty and Sustainability Gaps in knowledge persist regarding the optimal timing of feed presentation, the ideal number of feeding spaces per piglet, and the role of water additives such as acidifiers or probiotics. While many producers use prophylactic antimicrobials in feed or water, the development of resistance and the desire to reduce antibiotic use demand alternative strategies. A 2017 review on gut microbiota dysbiosis in postweaning piglets emphasizes that a healthy microbiome is crucial for pathogen exclusion and that dietary interventions (prebiotics, probiotics, organic acids, and zinc oxide) can support gut health, though results vary across studies ([Gut Microbiota Dysbiosis in Postweaning Piglets: Understanding the Keys to Health](https://api.elsevier.com/content/abstract/scopus_id/85020259842)). Blended approaches, combining nutritional management with hygiene, are more likely to succeed than single interventions. Sustainability in swine production depends on reducing morbidity and mortality during the weaning transition. Lower rates of treatment and death improve feed conversion efficiency, reduce labor costs, and minimize the environmental footprint per kilogram of pork produced. The [FAO Animal Production and Health](https://www.fao.org/animal-production/en/) notes that sustainable intensification of livestock systems requires careful management of animal health and welfare. Specific environmental transitions,such as temperature, floor type, and air quality,should be monitored and adjusted to reduce stress. Using slatted floors versus solid floors with bedding, for instance, influences piglet comfort and cleanliness. Uncertainty exists about the ideal floor design for newly weaned piglets, but observational data from farm records can guide local decisions. ## Frequently Asked Questions **1. How soon should water be offered to newly weaned piglets?** Water should be available immediately upon placement in the nursery. Delaying water access by even a few hours increases the risk of dehydration and reduces subsequent feed intake. Low-pressure drinkers or open bowls can help naïve piglets locate water. **2. Is it necessary to provide the same starter diet used before weaning?** Yes. Continuing the same highly palatable starter diet for at least 3,5 days post-weaning minimizes dietary change and maintains intake. A gradual transition to a weaner diet reduces the risk of osmotic diarrhea. **3. How many drinkers are needed per pen of weaned piglets?** A general guideline is one drinker per 10,12 piglets. Additional drinker access may improve water consumption in hot weather or when piglets are slow to adapt. Check that flow rate is adequate (approximately 0.5,1 liter per minute for nipple drinkers). **4. What should I do if piglets are not eating after 24 hours?** Offer a small amount of fresh, dry starter feed on a mat, tray, or clean floor surface. Spoon-feeding or hand-offering a few pellets can stimulate exploratory behavior. Ensure water is accessible and that room temperature is appropriate (28,30°C in the first week). **5. How can I tell if piglets are dehydrated?** Signs include sunken eyes, dry mucous membranes, prolonged skin tenting (pinch the skin over the back, if it remains elevated after release, dehydration is likely), and reduced activity. Weighing a sample of piglets daily can detect early weight loss. **6. Are probiotics or acidifiers effective for weaning diarrhea?** Some studies indicate that probiotics (*Lactobacillus* or *Bacillus* species) or organic acids (citric, fumaric, or formic acid) can lower diarrhea incidence, but results are inconsistent. These should be considered as supportive measures, not replacements for good hygiene and nutrition. **7. When should I call a veterinarian?** If diarrhea affects more than 10,15% of piglets in a pen within 48 hours, if mortality exceeds 2%, or if piglets show severe depression, fever, or bloody feces, veterinary assistance is warranted. Prompt diagnosis can identify pathogens and guide treatment. **8. Can fecal contamination of water lines cause problems?** Yes. Nipple drinkers can become blocked or contaminated with biofilm, and biofilms may harbor opportunistic pathogens. Regular cleaning and flushing of water lines, especially between groups, reduces the risk of waterborne disease. --- ### Educational Veterinary Notice This material is intended for informational purposes in animal production and swine health management. It does not replace professional veterinary advice, diagnosis, or treatment. Producers and farm managers should consult a licensed veterinarian for specific health problems, diagnostic plans, and therapeutic protocols. Antimicrobial use must comply with local regulations and veterinary oversight. For emerging disease concerns, refer to updates from the [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) and [USDA APHIS Livestock and Poultry Disease](https://www.aphis.usda.gov/livestock-poultry-disease). ## Related Farming Guides - [Pig Farming Breeding Farrowing Nursery Grow Finish Nutrition And Biosecurity](/knowledge/animal-farming/swine/pig-farming-breeding-farrowing-nursery-grow-finish-nutrition-and-biosecurity) - [Farrowing House Preparation And Sow Care](/knowledge/animal-farming/swine/farrowing-house-preparation-and-sow-care) - [Newborn Piglet Care During The First 48 Hours](/knowledge/animal-farming/swine/newborn-piglet-care-during-the-first-48-hours) - [Pig Farm Biosecurity Plan](/knowledge/animal-farming/swine/pig-farm-biosecurity-plan) - [Production Records For Pig Farms](/knowledge/animal-farming/swine/production-records-for-pig-farms) ## Related Clinical & Scientific Guides * [Pig Enrichment Programs and Behavior Monitoring](/knowledge/animal-farming/swine/pig-enrichment-programs-and-behavior-monitoring) * [Swine Handling Facility Design for Safe Pig Movement](/knowledge/animal-farming/swine/swine-handling-facility-design-safe-pig-movement) * [Swine Feeding Management for Grow-Finish Pigs](/knowledge/animal-farming/swine/swine-feeding-management-for-grow-finish-pigs) ## 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.