Cow Heat Detection Methods
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Questions and Answers

During which stage of pregnancy does the zygote undergo cell division to become a blastocyst?

  • Period of Ovum
  • Period of Embryo (correct)
  • Period of Parturition
  • Period of Fetus
  • What is the process called when the blastocyst loosely attaches to the endometrium?

  • Implantation
  • Fertilization
  • Ovulation
  • Nidation (correct)
  • Which structure aids in the further development of the blastocyst and the formation of extraembryonic membranes?

  • Female Pronucleus
  • Placenta (correct)
  • Male Pronucleus
  • Organ Systems
  • What is the period of pregnancy that lasts until before parturition known as?

    <p>Period of Fetus</p> Signup and view all the answers

    Which stage involves the differentiation of organ systems and the formation of appendages?

    <p>Period of Fetus</p> Signup and view all the answers

    What occurs during male + female pronucleus fusion in terms of ploidy?

    <p>Diploid state restored</p> Signup and view all the answers

    What hormone stimulates endometrial growth during pregnancy?

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

    Which hormone is responsible for promoting oviduct and endometrial gland secretion during pregnancy?

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

    What hormone inhibits uterine contraction during pregnancy?

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

    In dogs and cats, which hormone is responsible for maintaining uterine quiescence?

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

    Which hormone is responsible for initiating and maintaining milk synthesis during pregnancy?

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

    Which hormone has a somatotropin-like effect and promotes the development of mammary gland alveoli during pregnancy?

    <p>Placental lactogen</p> Signup and view all the answers

    What is the characteristic sign of estrus in a bitch?

    <p>Enlarged and hyperemic vulva</p> Signup and view all the answers

    Which of the following is NOT a component of the estrous cycle in a bitch?

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

    In vaginal cytology of a bitch, which cell type is predominant during estrus?

    <p>Cornified cells (CC)</p> Signup and view all the answers

    What is the purpose of using a KAMAR heat-mount detector in cattle?

    <p>To detect estrus</p> Signup and view all the answers

    What is the purpose of applying chalk to the tail head region of a cow?

    <p>To identify cows in estrus</p> Signup and view all the answers

    What is the term used to describe a condition in bitches where they exhibit signs similar to pregnancy without being pregnant?

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

    What is the primary function of equine chorionic gonadotropin (eCG) in pregnant mares?

    <p>Stimulates follicular development and acts as a superovulation drug</p> Signup and view all the answers

    Which factor does NOT affect the length of gestation in mares?

    <p>Ambient temperature</p> Signup and view all the answers

    What is the typical time range for performing a progesterone test to diagnose pregnancy in mares?

    <p>16-22 days post-mating</p> Signup and view all the answers

    Which of the following is a correct statement about the ovarian cyclicity of pigs?

    <p>Pigs are polyestrous, non-seasonal, and spontaneous ovulators.</p> Signup and view all the answers

    Which technique is best suited for early pregnancy diagnosis in mares?

    <p>Rectal ultrasonography</p> Signup and view all the answers

    What is the optimal time range for ultrasonographic pregnancy diagnosis in sows?

    <p>25-70 days post-mating</p> Signup and view all the answers

    Which of the following is NOT a sign of heat in ewes?

    <p>Vulva swelling and redness</p> Signup and view all the answers

    What is the primary purpose of Doppler ultrasound in pregnancy diagnosis for dogs, pigs, sheep, and goats?

    <p>Detecting fetal heartbeats</p> Signup and view all the answers

    What is the duration of the estrus phase in cats?

    <p>5-10 days</p> Signup and view all the answers

    When does ovulation occur in pigs?

    <p>In the late 1/3 of estrus</p> Signup and view all the answers

    What is the Ram Effect in ewes?

    <p>It shortens the anestrus period and changes the timing of the onset and end of the reproductive season in adult ewes.</p> Signup and view all the answers

    How can you determine if a cat is pregnant after mating?

    <p>By using a Doppler ultrasound</p> Signup and view all the answers

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