Animal Reproduction SAQ Q & A PDF

Animal Reproduction SAQ's Q & A Describe the duration of oestrus in the cow. ANSWER: Oestrus in cows typically lasts 14 to 24 hours. What is the gestation length for a ewe? ANSWER: 147 days. Which hormone, produced by the hypothalamus, stimulates the synthesis of LH and FSH? ANSWER: Gonadotrop...

Animal Reproduction SAQ's Q & A Describe the duration of oestrus in the cow. ANSWER: Oestrus in cows typically lasts 14 to 24 hours. What is the gestation length for a ewe? ANSWER: 147 days. Which hormone, produced by the hypothalamus, stimulates the synthesis of LH and FSH? ANSWER: Gonadotropin Releasing Hormone (GnRH) How long does oestrus last in sows? ANSWER: Oestrus in sows lasts 2 to 3 days. What is the average gestation period for a cow? ANSWER: 283 days. Where does fertilization occur within the cow\'s reproductive system? ANSWER: In the oviducts. What role does the uterus play during gestation? ANSWER: It nourishes and protects the embryo and fetus. What hormone is primarily responsible for causing ovulation in cows? ANSWER: Luteinizing hormone (LH). What is the function of the cervix in the cow\'s reproductive anatomy? ANSWER: It prevents infection. During the bovine oestrous cycle, what is the role of progesterone (P4)? ANSWER: It promotes maintenance of pregnancy. What is the site of sperm deposition in the cow reproductive tract? ANSWER: The vagina. How does artificial insemination contribute to genetic improvement in bovine herds? ANSWER: It allows the use of superior genetics from top bulls, enhancing desirable traits like milk production and disease resistance. What is one major disadvantage of artificial insemination related to expertise? ANSWER: AI requires skilled personnel, which may not be readily available in all areas. Why can artificial insemination be considered cost-effective? ANSWER: It eliminates the need to keep a bull, reducing costs associated with feeding, housing, and veterinary care. In terms of disease control, why is artificial insemination preferred over natural mating? ANSWER: It reduces the risk of transmitting sexually transmitted diseases, promoting healthier herds. What is a potential consequence of relying heavily on a few selected bulls in artificial insemination? ANSWER: It can decrease genetic diversity within a herd, potentially leading to inbreeding issues. Describe one way artificial insemination helps in managing herd health. ANSWER: It minimizes the risk of disease transmission associated with natural mating, leading to healthier herds.