ANSC 1000 TEXTBOOK REVIEW -- CHAPTER 10 -- REPRODUCTION
ANSC 1000. The following review questions are intended to
point out and help you understand some of the major points in
the recommended reading material in Scientific Farm Animal
Production (8th Ed.) by R. E. Taylor and T. G. Field.
CHAPTER 10: Reproduction
** MALE **
10-1. Using Fig. 10.8 and 10.9 and your notes, identify the
following parts of the male reproductive tract and
give the functions of each.
Scrotum -
Testes -
Epididymis -
Vas deferens -
Penis -
Urethra (from class) -
Glans penis (from class) -
Sheath -
Sigmoid flexure -
Retractor penis muscle -
Seminal vesicles
Bulbourethral (also Cowper's) gland -
Prostate gland -
10-2. Within the testis, where are the sperm produced?
Which cells produce testosterone? (Give both names
used for these cells.)
10-3. MALE REPRODUCTIVE PHYSIOLOGY. (From your notes, Fig.
19.3, and Chap. 10):
What is a hormone?
What part of the brain is referred to as the
"integrator" of the brain's activities?
Look at Fig. 19.3 (in the Lactation chapter).
Where is the pituitary gland located?
Name (not initials) the two gonadotropic hormones.
What hormone from the hypothalamus stimulates the
release of the gonadotropic hormones from the anterior
pituitary gland?
What are the functions of FSH in the male?
What are the functions of LH in the male?
What are the functions of testosterone?
** FEMALE **
10-4. Using Fig. 10.1 and 10.2 and your notes, identify the
following parts of the female reproductive tract and
give the functions of each.
Vulva -
Vagina -
Cervix -
Uterus (body and horns) -
Oviducts -
Infundibulum -
Ovaries -
10-5. Name two hormones produced by the ovaries and the
structures on the ovaries that produce these hormones.
10-6. What is a follicle?
What is the "cavity" in the follicle called, and why
is it important?
What is another name for a mature follicle?
Release of the ovum from the ovary is called what?
Following release of the ovum, cells that were
follicular cells change and become what kind of cells?
10-7. Where does fertilization take place? Give the
structure and location within that structure.
10-8. FEMALE REPRODUCTIVE PHYSIOLOGY. (From your notes,
Fig. 19.3, and Chap. 10):
Which hormones stimulate the development of a new
follicle?
What are the functions of estrogen?
Which hormone causes ovulation to occur? What are two
other functions of this hormone at the time of
ovulation?
What are the functions of progesterone?
10-9. What is the difference between "estrus" and "estrous?"
10-10. What is length (days) of the estrous cycle and
gestation for
cows?
sows?
ewes?
mares?
10-11. Consider the bitch, fox, cow, ewe, sow, mare: Which
of these are....
Monestrous?
Polyestrous?
Seasonally polyestrous?
10-12. Changing daylight length has what effects on the
estrous cycles of farm animals?
10-13. What are the behavioral signs of estrus?
10-14. Approximately how many days after fertilization does
attachment of the placental membranes occur in
cows?
sows?
Where does attachment occur?
What happens at the site of attachment that is
important to the developing fetus?
10-15. What occurs during the embryonic stage of development?
10-16. Is parturition initiated by the mother or the fetus?
What hormone initiates the process of parturition?
10-17. Describe the normal presentation (orientation) of
calves and lambs at the time of parturition.
Read the last paragraph in Chap. 10 and go to Chap. 26 and read
the first two sections, (Cow-Calf Management and Management for
Optimum Calf-Crop Percentatges); also see the review questions
for Chap. 26 at this Web site.
10-18. Describe management guidelines that a producer can
utilize to have a high reproductive performance in his
herd. Consider nutrition, body condition, cows should
be gaining weight going into calving and until bred,
preventing dystocia.....
What is the primary cause of dystocia. How can it be
prevented?
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