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 (A)</p> Signup and view all the answers

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

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

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

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

What hormone stimulates endometrial growth during pregnancy?

<p>Progesterone (A)</p> Signup and view all the answers

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

<p>Progesterone (C)</p> Signup and view all the answers

What hormone inhibits uterine contraction during pregnancy?

<p>Progesterone (B)</p> Signup and view all the answers

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

<p>Relaxin (C)</p> Signup and view all the answers

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

<p>Prolactin (B)</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 (D)</p> Signup and view all the answers

What is the characteristic sign of estrus in a bitch?

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

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

<p>Gestation (C)</p> Signup and view all the answers

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

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

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

<p>To detect estrus (D)</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 (B)</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 (A)</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 (B)</p> Signup and view all the answers

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

<p>Ambient temperature (D)</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 (B)</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. (C)</p> Signup and view all the answers

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

<p>Rectal ultrasonography (A)</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 (C)</p> Signup and view all the answers

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

<p>Vulva swelling and redness (C)</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 (A)</p> Signup and view all the answers

What is the duration of the estrus phase in cats?

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

When does ovulation occur in pigs?

<p>In the late 1/3 of estrus (B)</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. (C)</p> Signup and view all the answers

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

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

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