Pregnancy Toxemia / Twin Lamb Disease (sheep, goats)

Pregnancy toxemia is a severe metabolic disorder that affects ewes and does during the final four to six weeks of gestation, when fetal energy demands are at their highest. This condition develops when pregnant animals cannot consume sufficient energy to meet both their own metabolic needs and the rapidly increasing demands of developing fetuses. The resulting negative energy balance forces the body to mobilize fat reserves, leading to excessive ketone body production that overwhelms normal metabolic pathways. Twin lamb disease, as it is commonly known in sheep, represents one of the most challenging metabolic emergencies in small ruminant production.

Pregnancy toxemia primarily affects sheep and goats, with ewes carrying twins or triplets at substantially higher risk than those with singleton pregnancies. The condition occurs worldwide wherever small ruminants are raised and represents a significant cause of mortality during the periparturient period. Prevalence varies considerably based on flock nutrition, management practices, and environmental conditions, but outbreaks affecting multiple animals within a group are not uncommon. The disease is most frequently observed in ewes and does during their first pregnancy or in older animals with declining body condition.

The economic and welfare impact of pregnancy toxemia on small ruminant operations can be devastating. Mortality rates in untreated cases approach one hundred percent, and even with aggressive treatment, survival rates often remain below fifty percent once clinical signs are well established. Beyond direct mortality, affected animals may abort or deliver weak offspring that require intensive care. The loss of both the dam and her offspring represents a significant financial loss, particularly in purebred or seedstock operations. Additionally, the intensive nursing care required for affected animals creates substantial labor demands during the already busy lambing or kidding season.

Early recognition and immediate treatment are essential for any chance of successful outcomes in pregnancy toxemia cases. The condition progresses rapidly once clinical signs appear, and delays of even several hours in initiating treatment significantly worsen prognosis. However, prevention through appropriate nutritional management during late gestation is far more effective than treatment of established cases. Understanding the pathophysiology, recognizing risk factors, and implementing proactive management strategies are critical for reducing pregnancy toxemia losses in sheep and goat operations.

The primary cause of pregnancy toxemia is negative energy balance during late gestation when fetal growth is most rapid. During the final six weeks of pregnancy, approximately seventy percent of fetal growth occurs, creating enormous energy demands on the dam. Fetuses require glucose as their primary energy substrate, and this glucose must come from the maternal bloodstream. When dietary energy intake cannot keep pace with fetal glucose demands, blood glucose levels fall and the body begins mobilizing fat reserves to compensate. The liver converts mobilized fatty acids to ketone bodies, which can serve as alternative energy sources for maternal tissues but cannot adequately support fetal development. Progressive accumulation of ketones leads to metabolic acidosis and the clinical syndrome of pregnancy toxemia.

Several factors increase the risk of negative energy balance and subsequent pregnancy toxemia development. Multiple fetuses dramatically increase energy requirements, making ewes and does carrying twins, triplets, or higher-order multiples substantially more susceptible than those with singletons. Body condition extremes at either end of the spectrum increase risk. Obese animals have reduced rumen capacity due to abdominal fat deposits, limiting their ability to consume adequate feed during late pregnancy. Conversely, thin animals lack body reserves to buffer periods of inadequate intake and may already be in negative energy balance before fetal demands peak.

Genetic factors influence pregnancy toxemia susceptibility indirectly through their effects on prolificacy, body condition, and metabolic efficiency. Breeds selected for high twinning rates naturally face higher pregnancy toxemia risk due to their greater likelihood of carrying multiple fetuses. Individual variation in appetite, feed efficiency, and metabolic flexibility may also affect susceptibility, though specific genetic markers have not been identified. The heritability of pregnancy toxemia itself has not been established, but culling ewes or does that develop the condition may reduce flock susceptibility over time if metabolic predisposition has a genetic component.

Environmental and management factors play critical roles in pregnancy toxemia development. Sudden feed changes, especially reductions in energy density or availability, can precipitate clinical disease in animals already in marginal energy balance. Severe weather events that reduce feed intake or increase maintenance energy requirements may trigger outbreaks. Competition for feed resources among grouped animals can leave subordinate individuals with inadequate nutrition despite adequate overall feed availability. Lameness, dental problems, or other conditions that reduce feed intake create individual risk. Stress from handling, transport, or predator pressure can decrease appetite and increase energy demands simultaneously.

The pathophysiology of pregnancy toxemia involves progressive disruption of carbohydrate and fat metabolism. As blood glucose falls, insulin secretion decreases and glucagon increases, promoting fat mobilization from adipose tissue. Free fatty acids flood the liver, exceeding its capacity for complete oxidation or conversion to very-low-density lipoproteins for export. Partial oxidation produces ketone bodies including beta-hydroxybutyrate, acetoacetate, and acetone. While ketones can provide energy for many maternal tissues, they cannot cross the placenta efficiently to support fetal metabolism, and excessive levels cause metabolic acidosis and central nervous system depression. Fatty infiltration of the liver impairs hepatic function, including gluconeogenesis, creating a self-perpetuating cycle of metabolic deterioration.

Early warning signs of pregnancy toxemia are often subtle and may be missed without careful observation of animals during late pregnancy. Initial changes include mild depression, decreased appetite, and reluctance to move with the flock or herd. Affected animals may stand apart from group mates or spend more time lying down than normal. Feed sorting or reduced consumption of less palatable feed components may be noticed before complete anorexia develops. Ewes or does that normally come readily for supplemental feeding may hang back or show disinterest. These early signs typically precede overt clinical disease by twelve to forty-eight hours and represent the best opportunity for successful intervention.

As pregnancy toxemia progresses, clinical signs become increasingly obvious and severe. Affected animals become profoundly depressed and may stand with their heads lowered or pressed against walls or fences. Complete anorexia is typical, with animals showing no interest in even highly palatable feeds. The animal may demonstrate apparent blindness, failing to respond to visual threats or navigate around obstacles. Teeth grinding indicates discomfort and is commonly observed. Muscle tremors, particularly of the facial muscles and lips, develop as the condition advances. A characteristic sweet or fruity odor may be detected on the breath due to exhaled acetone, though this finding is not always present.

Behavioral changes in pregnancy toxemia reflect progressive central nervous system dysfunction from ketone accumulation and metabolic acidosis. Animals may appear dazed or unaware of their surroundings, standing in unusual places or positions. Stargazing, with the head elevated and nose pointed upward, may be observed. Some animals become hyperexcitable and react excessively to stimuli, while others become profoundly obtunded and barely responsive to handling. Circling, head pressing, and other neurological signs may develop. In terminal stages, affected animals may exhibit convulsions or seizure-like activity before lapsing into coma.

Physical signs beyond behavioral changes help characterize pregnancy toxemia severity. Body condition is often poor, though the large pregnant abdomen may mask loss of muscle mass over the spine and ribs. Mucous membranes may appear pale or have a yellowish tinge indicating hepatic lipidosis. Rumen contractions are typically decreased or absent. Rectal temperature is usually normal or subnormal unless secondary infection has developed. Fetal viability can be assessed through fetal movement observation or ultrasound examination, though weakened or dead fetuses may not be evident on external observation. Vaginal discharge may indicate impending parturition or fetal death with early decomposition.

Symptom progression in untreated pregnancy toxemia follows a predictable downward trajectory over several days. Early signs of depression and decreased appetite progress to complete anorexia and obvious neurological dysfunction within twenty-four to forty-eight hours. Recumbency typically develops within two to four days of initial signs, with animals becoming unable to rise or maintain sternal position. Once recumbent, secondary complications including aspiration pneumonia and pressure injuries develop rapidly. Terminal stages are characterized by coma and death, usually within three to six days of initial clinical signs without intervention. However, the timeline varies based on the severity of negative energy balance and individual animal factors.

Emergency symptoms that demand immediate veterinary intervention include complete recumbency, severe neurological signs such as seizures or coma, and signs of dystocia or fetal death. Animals showing these signs have grave prognoses but may still respond to aggressive treatment if intervention is immediate. Delivery of the fetuses, either through induced parturition or cesarean section, may be necessary to save the dam's life when medical management alone is insufficient. Any pregnant ewe or doe showing depression, anorexia, or neurological signs during the last month of gestation should be considered a potential pregnancy toxemia case requiring urgent evaluation.

Clinical examination provides the foundation for pregnancy toxemia diagnosis in field settings. The combination of late pregnancy, depression, anorexia, and neurological signs creates a characteristic presentation that experienced veterinarians and producers can recognize readily. Physical examination should include assessment of body condition, hydration status, rumen motility, mucous membrane color, and neurological function. Abdominal palpation or ultrasonography can confirm pregnancy and may reveal multiple fetuses or assess fetal viability. The presence of a sweet or acetone-like odor on the breath supports the diagnosis but is not always detectable. Rectal temperature helps exclude infectious causes of similar clinical signs.

Diagnostic testing confirms clinical suspicion and helps assess disease severity and prognosis. Blood or urine ketone testing provides rapid confirmation of ketosis, with elevated beta-hydroxybutyrate levels strongly supporting the diagnosis. Commercial ketone test strips designed for cattle can be used in sheep and goats, though species-specific reference ranges should be applied. Blood glucose measurement typically reveals severe hypoglycemia, with levels often below thirty milligrams per deciliter in advanced cases. Serum biochemistry may show elevated liver enzymes, increased blood urea nitrogen, and metabolic acidosis. Anemia and elevated bilirubin levels indicate significant hepatic lipidosis and carry negative prognostic significance.

Differential diagnosis is essential because several other conditions can produce similar clinical signs in late-pregnant small ruminants. Hypocalcemia or milk fever causes weakness and recumbency but typically occurs closer to parturition and responds rapidly to calcium supplementation. Listeriosis produces neurological signs but is usually accompanied by fever and asymmetric cranial nerve deficits. Polioencephalomalacia causes blindness and neurological dysfunction but is not specifically associated with late pregnancy. Ruminal acidosis may cause depression and anorexia but usually has an identifiable dietary precipitant. Infectious causes including rabies should be considered in appropriate epidemiological settings. Toxicoses from plant poisoning or other sources can produce neurological signs resembling pregnancy toxemia.

Flock-level assessment is important when pregnancy toxemia cases are identified, as affected animals often represent only the most severely impacted individuals in a group experiencing inadequate nutrition. Evaluation of body condition scores across the late-pregnant group helps identify other animals at risk. Review of nutritional management including diet composition, feed availability, and competition for feed resources reveals contributing factors. Assessment of pregnancy status through ultrasound examination identifies animals carrying multiple fetuses who warrant closer monitoring and potentially increased nutritional support. This information guides both treatment of current cases and prevention of additional cases within the group.

Emergency treatment of pregnancy toxemia focuses on immediate energy supplementation and correction of metabolic derangements. Intravenous glucose administration provides direct substrate to support both maternal and fetal metabolism. Dextrose solutions at fifty percent concentration can be given as slow intravenous boluses of fifty to one hundred milliliters, repeated every six to twelve hours as needed. Continuous intravenous dextrose infusion provides more sustained glucose delivery but requires intensive monitoring. Oral administration of propylene glycol at sixty to one hundred milliliters twice daily provides gluconeogenic precursor that the liver can convert to glucose. Glycerol serves as an alternative gluconeogenic substrate and may be better tolerated than propylene glycol in some animals.

Medical management beyond energy supplementation addresses the various metabolic complications of pregnancy toxemia. Intravenous fluid therapy corrects dehydration and supports renal function for ketone body excretion. Sodium bicarbonate may be added to fluids to help correct metabolic acidosis in severe cases. Calcium supplementation is indicated because hypocalcemia frequently accompanies pregnancy toxemia, and calcium is essential for smooth muscle function including uterine contractility. B-vitamin supplementation supports hepatic function and energy metabolism. Corticosteroids have been used to promote fetal lung maturation and potentially stimulate gluconeogenesis, though their benefits remain debated. Withdrawal times must be observed for all medications if the animal survives and enters the food chain.

Delivery of the fetuses often represents the most effective treatment for pregnancy toxemia because it immediately eliminates the metabolic drain created by fetal glucose demands. Induction of parturition using prostaglandins or corticosteroids may be attempted in animals close to term with viable fetuses. Cesarean section provides immediate relief of the metabolic burden and may be necessary when fetuses are too large for vaginal delivery or when the dam's condition is deteriorating despite medical management. The decision to perform cesarean section must weigh the dam's likelihood of surviving surgery against her prognosis with continued medical management. Fetotomy may be necessary if fetuses have died and begun to decompose, though this carries significant risks of maternal sepsis.

Supportive care is critical for pregnancy toxemia patients and may determine survival even when specific treatments are provided. Recumbent animals should be maintained in sternal recumbency with support and turned frequently to prevent pressure sores. Deep bedding and protection from environmental extremes help conserve energy and prevent secondary complications. Nutritional support through palatable, energy-dense feeds should be offered frequently, as return of appetite is an important positive prognostic sign. Small amounts of grain, molasses-coated feeds, or browse may stimulate appetite when hay is refused. Fresh water must be available at all times, and water intake should be monitored.

Herd-level considerations apply when multiple animals are affected or at risk. Review and correction of nutritional management for the remaining late-pregnant group is essential to prevent additional cases. Increased energy density through grain supplementation, provision of higher-quality forages, and reduced competition for feed resources may be indicated. Sorting animals by pregnancy status and body condition allows targeted feeding of highest-risk individuals. Close monitoring of the remaining group enables early identification of additional cases when intervention is most likely to succeed.

Treatment decisions in pregnancy toxemia involve difficult economic and welfare considerations. The costs of intensive treatment including veterinary fees, medications, and labor can be substantial, while prognosis remains guarded even with aggressive intervention. Animals with severe neurological signs or prolonged recumbency have poor survival odds. The value of the dam and her offspring influences treatment intensity decisions for individual producers. Humane euthanasia may be the most appropriate option for animals with grave prognoses or when treatment resources are unavailable. These decisions should be made in consultation with veterinary professionals who can provide objective assessment of individual case prognosis.

Recovery from pregnancy toxemia depends heavily on disease severity at treatment initiation and the success of metabolic correction. Animals treated in early stages with mild clinical signs may show improvement within twenty-four to forty-eight hours of energy supplementation, with return of appetite being an important positive indicator. Complete recovery in these cases may occur over several days to one week, though ongoing nutritional support remains necessary through the remainder of pregnancy and into lactation. Animals with more severe disease at presentation require longer recovery periods, and some may not recover despite aggressive treatment. The overall survival rate for clinically affected animals ranges from thirty to seventy percent depending on case severity and treatment intensity.

Post-treatment care and monitoring continue through parturition and into early lactation. Recovered animals remain at risk for relapse if energy balance becomes negative again, particularly during the metabolic demands of lactation. Nutritional support should continue with energy-dense diets appropriate for late pregnancy and lactation. Body condition should be monitored and maintained at appropriate levels. Ketone testing can be repeated periodically to confirm metabolic stability. Offspring of affected dams may be weak or compromised and should be monitored closely, with colostrum supplementation and supportive care provided as needed.

Prognostic factors help predict which animals are most likely to survive pregnancy toxemia. Early detection and treatment dramatically improve survival odds compared to treatment of advanced cases. Animals that remain ambulatory and retain some appetite have better prognoses than those that are recumbent and completely anorectic. Response to initial treatment, assessed by return of appetite and improved mentation within twenty-four to forty-eight hours, provides important prognostic information. Laboratory findings including blood glucose levels, degree of ketosis, liver enzyme elevation, and acid-base status help predict outcomes. Fetal viability influences maternal prognosis, as dead or dying fetuses create ongoing metabolic toxicity that impairs recovery.

Return to production following pregnancy toxemia recovery is possible but requires careful management. Ewes or does that fully recover can complete their current gestation and raise their offspring, though colostrum production and milk yield may be reduced. Future breeding of recovered animals must be carefully considered, as these individuals may have increased risk of recurrence in subsequent pregnancies if underlying predisposing factors are not addressed. Nutritional management during future pregnancies should be intensified, with particular attention to body condition maintenance and energy supplementation during late gestation. Some producers choose to cull recovered animals to reduce future risk and management burden, particularly when underlying genetic predisposition to obesity or poor appetite is suspected.

Prevention of pregnancy toxemia through nutritional management during late gestation is far more effective than treatment of established cases. Energy intake must be increased progressively during the final six weeks of pregnancy to match escalating fetal demands. This is particularly critical for ewes and does carrying multiple fetuses, whose requirements may be fifty percent or more higher than those with singletons. High-quality forages with good palatability and digestibility should form the foundation of the diet. Grain supplementation at levels appropriate for pregnancy stage and fetal load provides concentrated energy when forage alone cannot meet requirements. Feed changes should be made gradually over one to two weeks to avoid ruminal upset.

Body condition management throughout the production cycle prevents the extremes that predispose to pregnancy toxemia. Ewes and does should enter the breeding season in moderate body condition, ideally scoring between three and three and a half on a five-point scale. Excessive condition at breeding increases risk because body fat may later accumulate in the abdomen and limit rumen capacity during late pregnancy when feed intake must increase. Conversely, thin animals at breeding may never recover adequate condition and will enter late pregnancy with inadequate reserves. Body condition should be monitored throughout pregnancy with adjustments to nutrition as needed to maintain appropriate condition.

Management practices beyond direct nutrition influence pregnancy toxemia risk. Pregnancy diagnosis including fetal counting through ultrasound examination identifies animals carrying multiple fetuses who warrant additional nutritional support. Grouping animals by pregnancy status and fetal load allows targeted feeding strategies that provide more to those with greater needs. Adequate feeder and water space prevents dominant animals from limiting subordinate access to resources. Protection from severe weather reduces energy demands for thermoregulation. Control of internal parasites ensures nutrients go to productive purposes rather than supporting parasite burdens. Dental care maintains the ability to consume and utilize available feeds.

Monitoring programs during late pregnancy enable early intervention before clinical disease develops. Body condition scoring at regular intervals identifies animals losing condition who need supplementation. Periodic ketone testing of at-risk groups can detect subclinical ketosis before clinical signs appear. Blood beta-hydroxybutyrate levels above 0.8 millimoles per liter suggest negative energy balance warranting increased nutrition. Daily observation for early clinical signs allows prompt treatment when cases do occur. Record keeping of pregnancy toxemia cases and their circumstances helps identify patterns and refine prevention strategies for subsequent breeding seasons.

Selection and culling decisions influence long-term pregnancy toxemia incidence in the flock or herd. Ewes or does that develop pregnancy toxemia may have underlying metabolic or constitutional factors that increase susceptibility, and culling these individuals after recovery may reduce flock risk over time. Selection for moderate prolificacy rather than maximum twinning rates may reduce risk in flocks where pregnancy toxemia is problematic. Avoiding selection of animals with extremely high or low body condition scores removes individuals at either end of the risk spectrum. While pregnancy toxemia is not directly heritable, selection against predisposing characteristics can improve flock metabolic resilience over generations.

Daily management and monitoring of late-pregnant ewes and does forms the cornerstone of pregnancy toxemia prevention. Animals should be observed at least twice daily during the final six weeks of gestation, with particular attention to appetite, activity level, and separation from the group. Feed consumption should be monitored both at the group level through assessment of feed disappearance and at the individual level through observation of eating behavior. Any animal that fails to come for supplemental feeding, hangs back from the feed bunk, or appears depressed warrants closer examination. Early intervention in animals showing subtle signs of negative energy balance can prevent progression to clinical pregnancy toxemia.

Housing and environmental management support the metabolic health of late-pregnant small ruminants. Adequate shelter from wind, rain, and extreme temperatures reduces thermoregulatory energy demands that compete with fetal support. Clean, dry bedding encourages rest and rumination, which supports feed intake and nutrient absorption. Sufficient space per animal prevents crowding stress and ensures all individuals can access feed and water without excessive competition. Feeding areas should be designed with adequate linear space to allow simultaneous feeding, particularly important for groups containing animals of different dominance status. Water availability must be maintained even in freezing conditions, as dehydration reduces feed intake.

Nutritional management programs for late pregnancy should be designed with veterinary or nutritionist input based on the specific needs of the operation. Diet formulation should account for forage quality, fetal load distribution within the group, and production goals. Feed testing ensures that assumed nutrient values match actual feed composition. Transition from maintenance to late-pregnancy rations should occur gradually to avoid ruminal dysfunction. Mineral and vitamin supplementation supports both maternal health and fetal development. Salt and mineral availability must be continuous, and consumption patterns may indicate nutritional adequacy or deficiency.

Record keeping supports effective pregnancy toxemia management across production cycles. Records should document body condition scores at key points including breeding, mid-pregnancy, and late pregnancy. Pregnancy diagnosis results including fetal counts identify high-risk individuals. Nutritional management details including feeds used, amounts offered, and any problems noted provide context for evaluating outcomes. Cases of pregnancy toxemia should be recorded with all relevant details including animal identification, clinical signs, treatment provided, and outcome. This information allows pattern identification and continuous improvement of prevention strategies.

Economic considerations permeate pregnancy toxemia management decisions. The costs of enhanced nutrition during late pregnancy must be weighed against the value of lost animals and offspring when pregnancy toxemia occurs. Investment in pregnancy diagnosis including fetal counting enables targeted nutrition that may be more cost-effective than blanket supplementation of all pregnant animals. Labor costs for monitoring and early intervention should be factored into management planning. Insurance coverage for livestock mortality may influence decision making about treatment intensity for affected animals. Economic analysis helps producers allocate limited resources to the prevention and management strategies most likely to yield positive returns.

Certain breeds and production types face elevated pregnancy toxemia risk due to their reproductive characteristics and metabolic profiles. Highly prolific breeds selected for twinning and triplet production naturally experience higher incidence because multiple fetuses dramatically increase energy demands during late pregnancy. In sheep, breeds known for high prolificacy including Finnsheep, Romanov, and their crosses carry inherently higher risk than breeds typically producing singles. Among meat sheep, Suffolk and Hampshire ewes carrying twins or triplets are commonly affected. Dairy sheep breeds may face additional risk due to the concurrent metabolic demands of developing both fetuses and udder tissue for lactation.

Goat breeds and production types show similar patterns of pregnancy toxemia susceptibility. Dairy goat breeds including Saanen, Alpine, Nubian, and LaMancha are commonly affected, particularly when carrying multiple kids while maintaining high body condition from lactation feeding practices. The combination of dairy genetics favoring energy partitioning toward milk production with the demands of multiple fetuses creates significant risk. Boer and other meat goat breeds selected for rapid growth and muscling may also experience pregnancy toxemia when nutritional management does not match their requirements. Small-framed breeds carrying large or multiple fetuses face physical restrictions on rumen capacity that compound metabolic challenges.

Production type influences pregnancy toxemia risk beyond breed effects. Dairy ewes and does face compounded demands when entering late pregnancy while still producing milk from the previous lactation, though this is less common in seasonal breeding systems. First-parity animals may be at increased risk because they are still growing while supporting pregnancy, creating additional nutrient demands beyond those of mature animals. Conversely, aged animals may develop pregnancy toxemia more readily due to declining metabolic flexibility and potential dental deterioration affecting feed intake. Animals experiencing their first pregnancy in a new environment may be stressed and have reduced appetite, increasing susceptibility. Selection against pregnancy toxemia occurrence can improve flock resistance over time, though this must be balanced against selection for other economically important traits including prolificacy.

Several conditions commonly occur alongside or share clinical features with pregnancy toxemia. Hypocalcemia frequently accompanies pregnancy toxemia and may be difficult to distinguish based on clinical signs alone. Both conditions cause weakness and recumbency in periparturient animals, and concurrent presentation is common. Response to calcium supplementation helps differentiate hypocalcemia from pure pregnancy toxemia. Ketosis in early lactation represents a continuation of the same metabolic disturbance that causes pregnancy toxemia, occurring when energy demands of milk production exceed dietary intake after parturition. Animals that develop pregnancy toxemia are at increased risk for early lactation ketosis if they survive to deliver and lactate.

Conditions producing similar clinical signs must be differentiated from pregnancy toxemia to ensure appropriate treatment. Listeriosis causes depression and neurological signs but typically presents with fever and asymmetric cranial nerve deficits including facial paralysis. Polioencephalomalacia produces blindness and neurological dysfunction but is not specifically associated with late pregnancy and responds to thiamine administration. Rabies must be considered for any animal with neurological signs in endemic areas. Plant toxicoses and other poisonings can produce acute neurological disease requiring different management approaches. Ruminal acidosis causes depression and anorexia and may precipitate pregnancy toxemia through its effects on feed intake.

Complications and sequelae of pregnancy toxemia extend beyond the immediate metabolic crisis. Hepatic lipidosis develops as fat mobilization overwhelms liver metabolic capacity, and severe fatty infiltration may cause permanent hepatic dysfunction in survivors. Ketoacidosis can progress to renal failure in severe cases. Fetal death and decomposition may occur during the course of disease, leading to septic metritis if retained. Animals surviving prolonged recumbency may develop pressure sores, muscle necrosis, and permanent musculoskeletal damage. Weak offspring born to affected dams require intensive care and may have increased mortality despite successful maternal treatment. Reduced colostrum production and quality in affected dams compromises passive immunity transfer to offspring. These complications underscore the importance of prevention rather than reliance on treatment of established pregnancy toxemia.