Abomasal Ulcers GI

Abomasal ulcers represent a significant gastrointestinal condition affecting ruminant livestock, characterized by erosions or deeper lesions in the mucosal lining of the abomasum, which functions as the true stomach in cattle, sheep, and goats. The abomasum is the fourth compartment of the ruminant stomach system and is analogous to the simple stomach found in monogastric animals, producing hydrochloric acid and digestive enzymes essential for protein digestion. When the protective mucosal barrier becomes compromised, the corrosive gastric secretions damage the underlying tissue, resulting in ulceration that can range from superficial erosions to deep, perforating wounds that threaten the animal's life.

This condition primarily affects cattle, with dairy cows and veal calves being particularly susceptible due to the intensive management practices and nutritional demands placed upon them. Adult dairy cattle commonly develop ulcers during the periparturient period when metabolic stress is highest, while young calves on milk replacer diets face increased risk due to dietary factors and stress associated with weaning and housing changes. Sheep and goats can also develop abomasal ulcers, though the condition is diagnosed less frequently in these species, often appearing secondary to other disease processes or parasitic infections that damage the abomasal lining.

The economic and welfare implications of abomasal ulcers in livestock operations are substantial, as affected animals experience reduced feed intake, decreased milk production in dairy cattle, poor weight gain in growing animals, and in severe cases, sudden death from hemorrhage or peritonitis. Subclinical cases may go undetected, causing chronic production losses that accumulate over time and affect overall herd profitability. The welfare concerns are equally significant, as ulcers cause pain and discomfort that compromise the animal's quality of life, making early detection and intervention crucial for ethical livestock management.

Fortunately, abomasal ulcers are treatable when identified early, though the prognosis varies considerably depending on the type and severity of ulceration present. Veterinary classification systems categorize abomasal ulcers into four types based on their characteristics, ranging from non-perforating ulcers with minimal bleeding to perforating ulcers with generalized peritonitis. Early recognition of clinical signs, prompt veterinary intervention, and appropriate management changes can lead to successful outcomes in many cases, emphasizing the importance of producer awareness and regular monitoring of at-risk animals within the herd.

The development of abomasal ulcers in farm animals results from a complex interplay of factors that disrupt the delicate balance between the corrosive gastric secretions and the protective mechanisms of the abomasal mucosa. Primary causes include excessive acid production, reduced mucosal blood flow, impaired mucus secretion, and direct damage to the epithelial lining from infectious agents, foreign bodies, or chemical irritants. Stress plays a central role in ulcer formation, as it triggers increased cortisol release that reduces mucosal defense mechanisms while simultaneously stimulating gastric acid secretion, creating conditions favorable for ulceration.

Certain breeds and genetic lines may demonstrate increased susceptibility to abomasal ulcers, though the condition is not considered hereditary in the traditional sense. High-producing dairy breeds, particularly Holstein-Friesians selected for maximum milk production, experience greater metabolic demands that predispose them to ulcer formation during periods of peak lactation. The genetic drive for production efficiency may inadvertently select for animals with heightened stress responses or altered gastric physiology that increases ulcer risk, though specific genetic markers for susceptibility have not been definitively identified.

Environmental and management factors contribute significantly to abomasal ulcer development in livestock operations. Intensive housing systems that limit natural behaviors, overcrowding, frequent pen changes, transportation stress, and competition for feed resources all elevate stress levels that promote ulceration. Dietary management plays a crucial role, with rapidly fermentable carbohydrates, inconsistent feeding schedules, abrupt diet changes, and inadequate effective fiber contributing to altered abomasal pH and motility patterns that damage the mucosal barrier. In calves, the type and temperature of milk replacer, feeding frequency, and weaning practices significantly influence ulcer risk.

Age and production stage represent important risk factors for abomasal ulcer development across different livestock categories. Dairy cattle face peak risk during the transition period from three weeks before to three weeks after calving, when metabolic stress, negative energy balance, and hormonal changes converge to compromise abomasal health. Young calves are vulnerable during the first weeks of life and again at weaning, while feedlot cattle face increased risk during the adaptation period when transitioning to high-concentrate finishing diets. Concurrent illness, particularly respiratory disease or other conditions requiring treatment with non-steroidal anti-inflammatory drugs, further elevates ulcer risk across all age groups.

The pathophysiology of abomasal ulcer formation involves the breakdown of normal protective mechanisms that maintain mucosal integrity. Under healthy conditions, the abomasal mucosa secretes a bicarbonate-rich mucus layer that neutralizes acid at the epithelial surface while maintaining a pH gradient that protects underlying tissues. Prostaglandins produced locally regulate blood flow, stimulate mucus production, and promote epithelial cell turnover necessary for mucosal repair. When these protective mechanisms are compromised by stress, inadequate nutrition, or pharmacological agents that inhibit prostaglandin synthesis, the balance shifts toward tissue damage, allowing pepsin and hydrochloric acid to erode the mucosal surface and initiate ulcer formation.

Early warning signs of abomasal ulcers in farm animals are often subtle and easily overlooked, making vigilant observation essential for timely detection. Affected animals may demonstrate decreased feed intake that develops gradually over several days, with particular reluctance to consume concentrates while maintaining some interest in forage. Mild depression and reduced activity levels appear early, with cattle spending more time lying down and showing less enthusiasm for normal herd interactions. Dairy cows may exhibit unexplained drops in milk production that precede other obvious clinical signs, providing an important early indicator for producers monitoring individual animal performance.

Clinical symptoms vary somewhat between species, though common presentations exist across affected ruminants. Cattle with abomasal ulcers frequently display abdominal discomfort evidenced by teeth grinding (bruxism), which indicates visceral pain and represents one of the most reliable clinical indicators of the condition. Sheep and goats may demonstrate similar pain responses along with vocalization, restlessness, and reluctance to move. All affected species typically show changes in fecal consistency, ranging from loose, dark-colored stools containing digested blood (melena) to frank bloody diarrhea in cases with significant hemorrhage. Pale mucous membranes develop when chronic blood loss leads to anemia.

Behavioral changes associated with abomasal ulcers reflect the discomfort and systemic effects of the condition on affected animals. Cattle often separate themselves from the herd, standing alone with an arched back and tucked-up abdomen that reflects abdominal pain. Reduced rumination is commonly observed, with affected animals showing fewer cud-chewing episodes and altered resting behavior. Feed consumption patterns change, with animals approaching feed bunks but eating only small amounts before walking away, suggesting that eating exacerbates discomfort. Social interactions decline, and previously dominant animals may become submissive due to the debilitating effects of chronic pain and blood loss.

Physical examination findings in animals with abomasal ulcers depend on the type and severity of ulceration present. Non-perforating ulcers with minimal bleeding may produce few obvious physical abnormalities beyond mild dehydration and reduced rumen fill. Ulcers with significant hemorrhage cause progressive anemia manifested as pale mucous membranes, increased heart rate, weak peripheral pulses, and eventually weakness or collapse. Abdominal palpation may reveal pain response when pressure is applied to the right ventral abdomen, though localization is often difficult. Rectal examination in cattle may detect dark, tarry feces or reveal no abnormalities in early or mild cases.

Symptom progression in untreated abomasal ulcers typically follows a predictable course toward increasingly severe clinical presentation. Initial mild inappetence and subtle behavioral changes advance to obvious anorexia, marked depression, and significant weight loss over days to weeks depending on ulcer severity. Animals with bleeding ulcers develop worsening anemia that manifests as exercise intolerance, tachycardia, and pallor before progressing to weakness and recumbency in severe cases. Perforating ulcers cause sudden deterioration with signs of peritonitis, including fever, complete anorexia, abdominal distension, and profound depression that rapidly becomes life-threatening.

Emergency symptoms requiring immediate veterinary intervention include sudden collapse, severe weakness, rapid breathing, profoundly pale or white mucous membranes, large volumes of bloody stool, abdominal distension, high fever, and signs of shock such as cold extremities and prolonged capillary refill time. Animals exhibiting these signs have likely experienced significant hemorrhage or ulcer perforation and require urgent assessment and treatment to survive. Producers should contact their veterinarian immediately upon observing any combination of these emergency indicators, as delays significantly worsen prognosis. Sudden death without prior obvious illness may occur with massively bleeding ulcers or acute perforation, making necropsy examination valuable for herd management when unexplained losses occur.

Clinical examination for suspected abomasal ulcers begins with thorough history taking to identify risk factors, recent stressors, dietary changes, and the timeline of symptom development. Physical examination includes assessment of vital parameters, mucous membrane color, hydration status, and abdominal auscultation and palpation. In cattle, simultaneous auscultation and percussion of the right abdomen may reveal abnormal sounds suggesting fluid accumulation or altered gut motility. Pain response elicited during examination helps localize the problem, though definitive diagnosis of abomasal ulcers based on physical findings alone is challenging since signs overlap with many other gastrointestinal conditions.

Diagnostic testing supports clinical suspicion and helps characterize ulcer severity. Complete blood count analysis reveals anemia in cases with significant hemorrhage, with packed cell volume and hemoglobin concentration declining proportionally to blood loss duration and severity. The anemia is typically regenerative, with elevated reticulocyte counts indicating bone marrow response to blood loss. Serum biochemistry may show elevated blood urea nitrogen from digested blood protein absorption, hypoproteinemia from chronic losses, and electrolyte abnormalities in animals with reduced intake. Fecal occult blood testing can detect hemorrhage not visible grossly, while fecal examination rules out parasitic causes of gastrointestinal bleeding.

Differential diagnosis for abomasal ulcers includes numerous conditions that produce similar clinical presentations. Abomasal displacement or volvulus causes abdominal pain and reduced appetite but typically produces characteristic ping sounds on auscultation. Hardware disease (traumatic reticuloperitonitis) may mimic ulcer signs and commonly occurs in cattle with access to metallic debris. Parasitic gastroenteritis, particularly from Haemonchus or Ostertagia species, causes blood loss and anemia that resembles ulcer bleeding. Hemorrhagic bowel syndrome, intestinal intussusception, and clotting disorders enter the differential for animals presenting with bloody feces. Lymphosarcoma affecting the abomasum may present identically to ulcer disease and carries a grave prognosis.

Herd-level diagnostics become relevant when multiple animals develop signs consistent with abomasal ulcers or when investigating ongoing production losses. Necropsy examination of deceased animals provides definitive diagnosis and characterizes ulcer type, helping identify potential causative factors. Review of feeding records, diet composition, and management practices identifies risk factors amenable to intervention. Monitoring production data including milk yield, feed intake, and growth rates across the herd reveals patterns suggesting subclinical disease affecting multiple animals. Veterinary consultation for comprehensive herd health assessment may include evaluation of stress indicators, housing conditions, and nutritional adequacy to develop prevention strategies alongside diagnostic investigation.

Emergency treatment for abomasal ulcers depends on presentation severity and requires immediate veterinary involvement for optimal outcomes. Animals showing signs of significant hemorrhage need aggressive fluid therapy to restore circulating volume, with intravenous administration of balanced electrolyte solutions at shock doses in severely affected individuals. Blood transfusion may be necessary when packed cell volume drops below critical levels, using fresh whole blood from a compatible donor within the herd. Stabilization takes priority over definitive treatment in emergency presentations, as attempting surgical intervention in a patient with uncorrected shock dramatically worsens prognosis.

Medical management forms the foundation of abomasal ulcer treatment in most cases, focusing on reducing acid secretion, protecting the ulcerated mucosa, and supporting healing. Proton pump inhibitors such as omeprazole or pantoprazole effectively suppress gastric acid production and are increasingly used in valuable cattle despite limited labeled indications. Histamine-2 receptor antagonists including ranitidine provide alternative acid suppression with established safety profiles in ruminants. Mucosal protectants such as sucralfate bind to ulcerated tissue and create a physical barrier against acid damage while potentially promoting healing. Producers must strictly observe withdrawal times for any medications administered to animals destined for slaughter or producing milk for human consumption.

Surgical intervention becomes necessary for specific ulcer presentations that cannot resolve with medical management alone. Type 3 ulcers that perforate but remain locally contained may require surgical drainage and lavage of localized peritonitis. Type 4 ulcers with generalized peritonitis carry grave prognosis but surgical exploration, repair of perforation if possible, and aggressive peritoneal lavage represent the only chance for survival. Surgical approaches vary based on lesion location and surgeon preference, with right paramedian or right flank approaches commonly employed in cattle. The decision to pursue surgery depends on animal value, likelihood of success, and economic considerations that vary between operations.

Supportive care significantly influences recovery outcomes regardless of primary treatment approach. Providing palatable, easily digestible feed encourages intake and reduces mechanical trauma to the healing mucosa. High-quality hay or fresh grass given in small, frequent meals supports rumen function while avoiding the acidosis risk associated with concentrate feeding. Fresh water must remain available at all times, and oral electrolyte supplementation supports hydration in animals with reduced drinking. Pain management improves welfare and may enhance recovery, though non-steroidal anti-inflammatory drugs must be used cautiously as they can worsen ulceration; veterinarians may select alternative analgesics when ongoing pain control is necessary.

Herd treatment protocols apply when investigation reveals management factors affecting multiple animals or when subclinical disease appears widespread. Dietary modifications implemented across the group address nutritional risk factors, including increased effective fiber, reduced rapidly fermentable carbohydrate levels, and improved feeding consistency. Stress reduction measures benefit all animals and specifically protect those at elevated risk. Strategic monitoring allows early identification and individual treatment of affected animals before severe complications develop. Communication with nutritionists and veterinarians ensures protocol development addresses specific herd circumstances while maintaining productivity goals.

Treatment decisions in farm animal practice must balance individual animal welfare against economic realities facing livestock producers. The cost of intensive ulcer treatment, including prolonged medication, potential surgery, extended recovery time, and production losses, may exceed the animal's value, particularly for non-breeding stock or animals with poor prognosis. Salvage slaughter with appropriate withdrawal time observation may represent the most economically rational choice for some affected animals, provided they are not suffering acutely. Euthanasia is appropriate when prognosis is hopeless, suffering cannot be adequately controlled, or when economics preclude treatment in animals unlikely to recover. Veterinarians help producers navigate these difficult decisions by providing honest prognostic information and treatment cost estimates while respecting producer autonomy in final decision-making.

Recovery timeline for abomasal ulcers varies considerably based on ulcer type, treatment approach, and individual animal factors. Non-perforating ulcers identified early and managed medically may show clinical improvement within days of initiating treatment, though complete mucosal healing requires several weeks of continued therapy and supportive care. Animals with significant blood loss face longer recovery as the body must regenerate lost red blood cells, a process requiring adequate nutritional support and typically spanning two to four weeks to restore normal hematologic values. Perforating ulcers with peritonitis, when survival occurs, necessitate extended recovery periods often measured in months, with residual adhesions potentially affecting long-term productivity.

Post-treatment care focuses on supporting continued healing while monitoring for complications or recurrence. Dietary management remains critical throughout recovery, maintaining easily digestible feeds that minimize gastric irritation while meeting nutritional requirements for tissue repair and, in dairy cattle, resuming milk production. Gradual reintroduction of normal diet composition occurs over one to two weeks as clinical improvement is sustained. Continued administration of acid-suppressive medication may be warranted beyond initial treatment, particularly in animals with severe ulceration or identified ongoing risk factors. Isolation from herd stress during early recovery benefits some individuals, though prolonged separation creates reintegration challenges.

Prognostic factors influencing recovery success include ulcer type, duration before treatment, severity of blood loss, presence of peritonitis, underlying causative factors, and patient signalment. Type 1 ulcers without perforation or significant hemorrhage carry favorable prognosis with appropriate treatment, while type 4 ulcers with generalized peritonitis have guarded to poor survival prospects even with aggressive intervention. Young, otherwise healthy animals typically recover more completely than older individuals or those with concurrent disease. Identification and correction of causative factors improves prognosis by reducing recurrence risk, while persistent stress exposure or nutritional inadequacy undermines recovery despite appropriate medical treatment.

Return to production considerations guide management decisions during and after recovery from abomasal ulcers. Dairy cattle may resume milking once appetite and overall condition stabilize, though initial production typically remains below pre-illness levels while the animal continues recovering. Breeding can proceed after full recovery, though conception rates may be affected in cows that experienced significant metabolic stress. Animals recovered from ulcer disease warrant monitoring for recurrence, particularly during subsequent high-risk periods such as future calvings. Some individuals demonstrate lasting production impacts that influence decisions regarding retention in the herd versus culling after recovery is complete and any medication withdrawal periods have elapsed.

Vaccination protocols do not directly prevent abomasal ulcers since the condition is not caused by a single infectious agent amenable to immunization. However, maintaining comprehensive vaccination programs against respiratory and enteric pathogens reduces overall disease burden and associated stress that contributes to ulcer development. Clostridial vaccination protects against diseases that can complicate or mimic ulcer presentations. Healthy animals with robust immune function better withstand the metabolic and environmental stressors that promote ulceration, making general herd health maintenance through appropriate vaccination an indirect preventive measure.

Biosecurity measures for abomasal ulcer prevention focus on minimizing stress introduction and maintaining stable herd health status rather than preventing pathogen transmission. Quarantine protocols for new arrivals allow adaptation to new surroundings and diet before integration with the main herd, reducing stress that could trigger ulcer development in susceptible individuals. Consistent grouping strategies minimize social disruption, while isolation facilities enable prompt separation of sick animals for treatment without repeated mixing. Control of parasites that damage gastrointestinal mucosa forms an important biosecurity component, particularly in grazing systems where parasitic gastritis predisposes to ulceration.

Nutritional prevention strategies address one of the most significant and modifiable risk factor categories for abomasal ulcers. Diets should provide adequate effective fiber to maintain normal rumen function, promote rumination, and support healthy saliva production that buffers gastric acidity. Concentrate feeding requires careful management, with gradual adaptation periods, consistent feeding times, and appropriate particle size to prevent rapid fermentation and acid production. Transition cow programs ensuring adequate dry matter intake and metabolic support during the periparturient period protect high-risk dairy cattle. Calf nutrition management includes appropriate milk or replacer volume, feeding frequency, and weaning protocols that minimize stress while supporting growth.

Management practices influencing abomasal ulcer risk span housing design, animal handling, and daily routines. Comfortable housing with adequate space, appropriate flooring, and climate control reduces chronic stress that compromises gastric mucosal defenses. Low-stress handling techniques during necessary procedures, transportation, and veterinary examination minimize acute stress responses. Consistent daily routines provide predictability that cattle find calming, while adequate feed bunk space ensures all animals can eat simultaneously without competition. Attention to stocking density, ventilation, lighting, and noise levels creates an environment supporting overall health and specifically reducing ulcer risk.

Quarantine and testing protocols support ulcer prevention primarily through maintaining herd health stability and controlling concurrent disease conditions. New animal introductions should include health screening appropriate for the operation, with quarantine periods allowing observation for illness that might indicate stress susceptibility. Testing for infectious diseases that cause chronic stress or gastric damage helps maintain a healthy herd foundation. Regular monitoring through production records, body condition scoring, and clinical observation identifies at-risk individuals before ulcers develop. Postmortem examination of animals dying from unknown causes reveals subclinical ulcer prevalence and informs prevention strategy adjustments for the herd.

Daily management routines significantly impact abomasal ulcer risk and recovery in affected animals. Consistent feeding schedules establish predictable patterns that reduce stress and support normal digestive function, with cattle benefiting from multiple smaller meals rather than large single feedings where practical. Regular observation during feeding time enables early detection of reduced appetite or abnormal eating behavior indicating potential problems. Monitoring water consumption helps identify animals that may be developing illness, as decreased drinking often accompanies gastrointestinal discomfort. Daily assessment of manure consistency across the herd reveals changes suggesting digestive disturbance requiring investigation.

Housing and environmental management create the foundation for preventing abomasal ulcers through stress reduction. Facilities should provide comfortable resting areas with appropriate bedding depth and cleanliness to encourage normal lying behavior and rumination. Adequate ventilation maintains air quality without creating drafts that stress animals, while temperature management minimizes heat and cold stress that increase metabolic demands. Lighting programs supporting natural circadian rhythms benefit overall health, with transition periods between light and dark reducing abrupt environmental changes. Noise control, particularly from equipment operation, reduces chronic stress exposure in intensive housing systems.

Herd health programs incorporating abomasal ulcer prevention integrate regular veterinary consultation with ongoing producer management. Scheduled herd visits allow monitoring of risk factors and early identification of concerning trends. Nutritional consultation ensures diet formulation meets production demands while supporting digestive health. Reproductive management programs minimize stress associated with breeding and calving while optimizing intervals that affect metabolic demands. Parasite control programs appropriate for the geographic region and management system prevent gastric parasitism that damages abomasal mucosa and predisposes to ulceration.

Record keeping enables monitoring of factors associated with abomasal ulcer development and supports continuous improvement of prevention strategies. Individual animal health records document treatments, diagnoses, and outcomes that reveal patterns across the herd over time. Production records including milk yield, feed intake, and growth rates detect subclinical problems affecting performance before clinical illness becomes apparent. Feed delivery and composition records allow correlation between dietary changes and health events. Financial records quantifying losses from ulcer-related deaths, treatment costs, and production impacts justify investment in prevention measures and demonstrate improvement over time.

Economic considerations influence management decisions throughout ulcer prevention and treatment, requiring producers to balance optimal animal care against financial sustainability. Investment in housing improvements, nutrition programs, and labor for intensive monitoring must generate returns through reduced losses and improved productivity. Understanding which prevention measures provide greatest benefit for specific operation types helps prioritize limited resources. Cost-effective monitoring strategies identify problems early when intervention is most economical and successful. Veterinary consultation helps develop practical recommendations suited to operation size, facilities, and budget while maintaining acceptable animal welfare standards.

High-risk breeds and species for abomasal ulcers include cattle selected for intensive production characteristics, particularly dairy breeds under high metabolic demands. Holstein-Friesian cattle dominate this risk category due to their prevalence in commercial dairy operations and genetic selection for maximum milk production that increases metabolic stress. Jersey cattle, while producing less volume, face similar risks due to high component production demands. Brown Swiss, Ayrshire, and other dairy breeds share susceptibility when managed under intensive systems pushing production limits. Within beef breeds, animals in feedlot finishing programs experience elevated risk compared to extensively managed cattle on pasture-based systems.

Production type significantly influences ulcer risk beyond breed considerations. Dairy cattle face highest risk during early lactation when energy demands exceed intake capacity, creating negative energy balance that stresses all body systems including gastric mucosal defenses. High-producing cows within herds are particularly vulnerable due to greater metabolic demands. Beef cattle in feedlot settings encounter risk during diet transition and high-concentrate feeding phases. Veal calves raised on milk replacer diets without hay access represent a special risk category due to dietary factors and housing stress. Breeding stock including bulls under heavy service demands may develop ulcers from associated stress and nutritional competition.

Genetic selection and testing for abomasal ulcer resistance is not currently practiced, as no specific markers have been identified and the condition results from complex gene-environment interactions. However, selection for overall health, longevity, and resilience indirectly favors animals better able to withstand production stress without developing ulcers. Genetic evaluation for production traits should balance yield against health indicators, avoiding extreme production genetics in systems unable to provide corresponding management intensity. Culling of animals with ulcer history from breeding programs may be warranted if repeated occurrence suggests individual susceptibility, though environmental causes should be addressed first. Future genetic research may identify markers for stress resilience or gastric mucosal integrity that enable selection for reduced ulcer susceptibility while maintaining production potential.

Commonly co-occurring conditions with abomasal ulcers reflect shared risk factors and the systemic stress that promotes ulcer development. Left displaced abomasum frequently appears in the same animals and under similar circumstances as ulcers, with both conditions common during the transition period in dairy cattle. Ketosis and fatty liver disease indicate metabolic stress that simultaneously compromises gastric mucosal integrity. Retained placenta, metritis, and mastitis add infectious and inflammatory burdens that compound metabolic stress in fresh cows. Pneumonia and other respiratory diseases, particularly in calves, often precede or accompany ulcer development. Recognition of these associations guides clinicians toward comprehensive evaluation when one condition is identified.

Conditions with similar symptoms to abomasal ulcers require differentiation for appropriate treatment. Abomasal displacement produces abdominal discomfort and reduced appetite but typically without blood in feces unless concurrent ulceration exists. Hardware disease causes abdominal pain and depression that mimics ulcer presentation, requiring careful palpation and potentially radiography or ultrasound for differentiation. Parasitic gastroenteritis, especially haemonchosis, produces anemia and dark feces resembling ulcer hemorrhage but responds to anthelmintic treatment. Intestinal conditions including intussusception, hemorrhagic bowel syndrome, and salmonellosis enter the differential for animals with bloody feces. Lymphosarcoma involving the abomasum may be indistinguishable from ulcer disease without biopsy or necropsy examination.

Complications and sequelae of abomasal ulcers extend their impact beyond the initial gastric pathology. Chronic blood loss leads to iron deficiency anemia that persists after ulcer healing if not addressed through supplementation. Ulcer perforation causes localized or generalized peritonitis with high mortality despite aggressive treatment. Adhesions forming during peritonitis healing may cause chronic digestive disturbance affecting long-term productivity. Chronic ulcers can progress to gastric stricture limiting feed passage. Septicemia may develop secondary to bacterial translocation across ulcerated mucosa or from peritonitis. Death from acute hemorrhage or peritonitis represents the most severe consequence, occurring suddenly in some cases without prior obvious illness. Understanding these potential outcomes emphasizes the importance of prevention and early intervention before complications develop.