Pregnancy Toxemia in Cows
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Questions and Answers

What is the main cause of pregnancy toxemia in cows?

  • Lack of physical exercise
  • Excessive weight gain in late gestation
  • Overconsumption of nutrients
  • Disruption in maternal glucose homeostasis (correct)
  • Which clinical sign is commonly associated with pregnancy toxemia in cows?

  • Increased appetite
  • Physical hyperactivity
  • Rapid weight gain
  • Anorexia and depression (correct)
  • Why is pregnancy toxemia more common in beef cattle than in dairy cattle?

  • Poor availability of feed in the last trimester (correct)
  • Lack of exercise in beef cattle
  • Differences in gestation periods
  • Genetic predisposition in dairy cattle
  • How can pregnancy toxemia in cows be prevented?

    <p>Monitoring body condition and diet in late gestation</p> Signup and view all the answers

    What do increased blood BHB and NEFA concentrations reflect in cattle?

    <p>Negative energy balance and ketogenesis</p> Signup and view all the answers

    Which factor affects NEFA concentrations in cattle according to the text?

    <p>Available adipose tissue for mobilization</p> Signup and view all the answers

    What is recommended for the management of anorectic cattle affected by pregnancy toxemia?

    <p>Propylene glycol or dextrose administration</p> Signup and view all the answers

    What treatment is suggested to suppress ketogenesis in cattle with pregnancy toxemia?

    <p>Insulin administration</p> Signup and view all the answers

    Why should cattle with dehydration, organ dysfunction, or metabolic acidosis be treated with large volumes of electrolyte fluids?

    <p>To correct the imbalance caused by the conditions</p> Signup and view all the answers

    What is a suggested way to prevent pregnancy toxemia at the herd level?

    <p>Providing adequate nutrition and health care for late gestation cows</p> Signup and view all the answers

    What is the recommended body condition score for dairy cattle entering the final trimester of pregnancy?

    <p>&gt;5 (1-9 scale)</p> Signup and view all the answers

    Why should rumen degradable protein be sufficient in cattle nutrition according to NASEM recommendations?

    <p>To ensure microbial fiber digestibility</p> Signup and view all the answers

    What is recommended for individual cows during late gestation according to the text?

    <p>Careful monitoring of energy intake, attitude, and fat mobilization</p> Signup and view all the answers

    Which substance is used to facilitate ruminal propionate generation in cattle according to the text?

    <p>Monensin sodium</p> Signup and view all the answers

    What is the recommended daily monensin consumption for pregnant dairy cows according to the text?

    <p>180 mg</p> Signup and view all the answers

    Why should energy intake, attitude, and fat mobilization be carefully monitored in individual cows during late gestation?

    <p>To avoid complications due to the precarious state of energy and carbohydrate balance</p> Signup and view all the answers

    What is a common factor that can precipitate pregnancy toxemia in cows?

    <p>Large or multiple fetuses</p> Signup and view all the answers

    Which nutrient accounts for approximately 50%–60% of fetal-placental energy substrates?

    <p>Glucose</p> Signup and view all the answers

    What is a common clinical sign of illness in cows affected by pregnancy toxemia?

    <p>Decreased rumination</p> Signup and view all the answers

    In late gestation, why does the dam mobilize amino acids from body stores?

    <p>To support her own metabolism</p> Signup and view all the answers

    What may indicate more severe and prolonged energy deficiency in cows affected by pregnancy toxemia?

    <p>Serous atrophy of perirenal and pericardial fat depots</p> Signup and view all the answers

    Which is a possible consequence of excessive mobilization of adipose tissue in cows with pregnancy toxemia?

    <p>Excess ketone body production</p> Signup and view all the answers

    What is one way in which cold, snowy weather may contribute to the development of pregnancy toxemia?

    <p>By increasing the animal's energy requirement</p> Signup and view all the answers

    Which nutrient is actively transported across the placenta in cows?

    <p>Amino acids</p> Signup and view all the answers

    What is a common postmortem lesion found in cows affected by pregnancy toxemia?

    <p>Serous atrophy of omental fat</p> Signup and view all the answers

    What role do amino acids play when the dam is undernourished and hypoglycemic?

    <p>Supply maternal tissues with nutrients</p> Signup and view all the answers

    What may be a specific finding in clinical chemistry tests for pregnant cows with pregnancy toxemia?

    <p>Ketonuria</p> Signup and view all the answers

    Why do well-conditioned cows also risk being affected by pregnancy toxemia?

    <p>Regardless of body condition, cows may develop the condition</p> Signup and view all the answers

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