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Animal Science 107 - Reproductive Hormones, Technologies, and the Estrous Cycle Exam; Qu, Exams of Animal Anatomy and Physiology

Maryville University of Saint LouisAnimal Anatomy and Physiology

Animal Science 107 - Reproductive Hormones, Technologies, and the Estrous Cycle Exam; Questions and Answers |grade A+

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2025/2026

Available from 02/08/2026

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Animal Science 107 - Reproductive
Hormones, Technologies, and the Estrous
Cycle Exam; Questions and Answers |grade
A+
Which method of synchronization keeps all animals at the same state until this is removed?
- Gonadotropins
- Progestins
- Prostaglandins
- Progestins
According to the AM/PM rule, if a cow shows estrus on the afternoon, when should it be bred?
- Next morning
- Same evening
- Next evening
- Midnight
- Next morning
Artificial Insemination helps to control the transfer of disease from males to females.
- True
- False
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Download Animal Science 107 - Reproductive Hormones, Technologies, and the Estrous Cycle Exam; Qu and more Exams Animal Anatomy and Physiology in PDF only on Docsity!

Animal Science 107 - Reproductive

Hormones, Technologies, and the Estrous

Cycle Exam; Questions and Answers |grade

A+

Which method of synchronization keeps all animals at the same state until this is removed?

  • Gonadotropins
  • Progestins
  • Prostaglandins
  • Progestins According to the AM/PM rule, if a cow shows estrus on the afternoon, when should it be bred?
  • Next morning
  • Same evening
  • Next evening
  • Midnight
  • Next morning Artificial Insemination helps to control the transfer of disease from males to females.
  • True
  • False
  • True This device is used to collect embryos from the donor cows during embryo transfer.
  • K-Mar
  • Pedometer
  • Foley Catheter
  • Rumen Canula
  • Foley Catheter During embryo transfer, Embryos placed on the opposite uterine horn as ovulation occurred in the donor female.
  • True
  • False
  • False The process of placing semen into the reproductive tract of the female by artificial techniques is called:
  • Artificial Insemination
  • Castration
  • Embryo Transfer
  • Estrus synchronization
  • Artificial Insemination
  • Inhibits estrus and parturition.
  • Stimulates endometrial secretion of nutrients.
  • Blocks myometrial contractions. In cattle and sheep the pregnancy recognition signal is referred to interferon tau.
  • True
  • False
  • True Which of the following hormones helps to relax cartilage and ligaments in the pelvic region?
  • Progesterone
  • Relaxin
  • Prostaglandin
  • Oxytocin
  • Relaxin Which of the following does not result in dystocia for a female?
  • Abnormal presentations
  • Large frame size of dam
  • Females are too young
  • Small pelvis
  • Abnormal presentations.
  • Females are too young.
  • Small pelvis. Which of the following species has the longest ovulation time?
  • Horses
  • Swine
  • Sheep
  • Cattle
  • Horses Open refers to non-pregnant females.
  • True
  • False
  • True Which of the following parts of the female's reproductive tract produces the females gamete and female sex hormones?
  • Ovary
  • Uterus
  • Cervix
  • Ovary
  • Progesterone
  • Oxytocin
  • Progesterone Which of the following reproductive hormones is secreted by the anterior pituitary, acts upon the ovary, and is responsible for inducing follicular development, estrogen production, and stimulates spermatogenesis?
  • Oxytocin
  • Gonadotropin Releasing Hormone
  • Follicle Stimulating Hormone
  • Testosterone
  • Progesterone
  • Follicle Stimulating Hormone Which of the following are causes for dystocia?
  • Females are too young
  • Abnormally small pelvis
  • All of the above
  • Abnormal presentations
  • Fetus is too large
  • All of the above A cow's estrous cycle is approximately 28 days.
  • True
  • False
  • False Which of the following reproductive hormones is secreted by the uterine lining, acts upon the corpus luteum, causes the regression of the corpus luteum, and causes uterine contractions?
  • Prostaglandin
  • Testosterone
  • Progesterone
  • Inhibin
  • Estrogen
  • Prostaglandin Which of the following reproductive hormones is secreted by the posterior pituitary, corpus luteum, acts upon the smooth muscle and is involved in milk "let down", uterine contractions during parturition, and contractions of smooth muscles in the uterus and oviducts during mating?
  • Inhibin
  • Progesterone
  • Estrogen
  • Oxytocin
  • Follicle Stimulating Hormone
  • Oxytocin

Estrus detection aids like K-Mar and Pedometers help to improve the accuracy of estrus detection.

  • True
  • False
  • True A sire may produce a single unit (straw) of semen per week.
  • True
  • False
  • False Electro ejaculation stimulates the nerve over the Kidney for semen collection from bulls.
  • True
  • False
  • False Semen collected from bull should never be frozen in liquid nitrogen.
  • True
  • False
  • False Artificial insemination should always be performed by trained personnel.
  • True
  • False
  • True The estrus cycles of the donors and recipients must be synchronized by using synchronization agents during embryo transfer.
  • True
  • False
  • True Embryos should be collected this time after estrus in bovine.
  • 1 day
  • 14 days
  • 21 days
  • 7 days
  • 7 days Cows receive epidural anesthesia (epidural block) during embryo collection.
  • True
  • False
  • True

Prostaglandins only work on cycling females (must have CL present).

  • True
  • False
  • True Cost of the program is not a major consideration when choosing an estrous synchronization program.
  • True
  • False
  • False Collected sperm is always used in high concentrations and never diluted.
  • True
  • False
  • False LH and FSH hormones are secreted by posterior pituitary gland.
  • True
  • False
  • False Birth marks the termination of pregnancy.
  • True
  • False
  • True Progesterone is high during the Metestrus phase of the estrus cycle.
  • True
  • False
  • False GnRH release occurs during proestrus phase of estrous cycle.
  • True
  • False
  • True Cows stand to be mounted by other animals and also mount on other animals when in estrus.
  • True
  • False
  • True A pedometer can help detect estrus in cows.
  • True
  • False