Dairy Cow Reproduction and Lactation
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Questions and Answers

What is the typical duration of estrus in cows?

  • 12 hours
  • 18 hours (correct)
  • 36 hours
  • 24 hours

    • At what age are heifers sometimes inseminated?

  • 15 months (correct)
  • 12 months
  • 18 months
  • 21 months

    • What is the primary reason for using semen from outstanding or proven sires?

  • To reduce the cost of insemination
  • To improve the genetic quality of the offspring (correct)
  • To increase the milk production of the offspring
  • To increase the conception rate

    • What is the typical duration of lactation for first-time cows?

    <p>5-7 months</p> Signup and view all the answers

    At what age are cows usually removed from the herd?

    <p>5-6 years</p> Signup and view all the answers

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