reproduction

Question 1

what are the testis for

Answer 1

spermiogenesis

-production of testostrone

Question 2

whats the role of the epididymis

Answer 2

transport sperm to vas deferns

• storage of sperm
• maturation of sperm
• absorption of older sperm

Question 3

role of vas deference and accessory glands

Answer 3

• connect epididymis to the urethra
• at ejaculate, the sperm is mixed with secretions from the accessory glands
• the semen is 95% seminal fluids

Question 4

urethra

Answer 4

fine duct within the penis for the relese of sperm or urine

Question 5

FSH (follicle stimulating hormone)

Answer 5

promotes spermiogenesis

Question 6

LH (luteinizing hormone)

Answer 6

promotes androgen secrections such as testosterone and the development and release of the egg

Question 7

what are androgens

Answer 7

male sex hormones produced in the testicular Leydig cells

• involved in development of sexual charactoristics
• rapid growth
• lower body fat
• horns
• aggression
• libido

Question 8

puberty in the male is defined as

Answer 8

capacity to fertilize the female

-production of viable sperm

Question 9

what hormones do ovaries produce

Answer 9

progesterone and oestrogen

Question 10

whats the cycle length for ewe

Answer 10

17 days

Question 11

whats the cycle length for sow

Answer 11

20

Question 12

whats the cycle length for mare

Answer 12

22

Question 13

FSH in a female (Follicle stimulating hormone)

Answer 13

produced in peturity gland

-promotes growth and development of eggs/ovato stage of ovulation

Question 14

FSH in a female (Follicle stimulating hormone)

Answer 14

produced in peturity gland

-promotes growth and development of eggs/ova to stage of ovulation

Question 15

role of estrogen

Answer 15

produced by overies

• acts on
• increase LH production
• crevix- increase mucus production
• body- secoundary sexual charactoristics

Question 16

LH in femals

Answer 16

produced in paturity gland

cuses the release of the ova

Question 17

progestrone in females

Answer 17

produced in corpus lutea on the ovary
responsible for
-preventing cycling

Question 18

what is prostoglandin

Answer 18

stops production of progestrone by by causing regression of corpus lutea

Question 19

puberty in the female

Answer 19

ability to release an egg and conceive

in practice it is when the female first exhibits estrous

Question 20

what are dirvers for puberty to occur in females

Answer 20

seasonality

• other cycling females
• mature males

Question 21

in a farming system breeding at a oyunger age

Answer 21

increases production

Question 22

why controll ovulation

and how

Answer 22

allow easier use of reproductive tech

• allow fro a compact breding and birthing period
• using prostaglandin and progestrone

Question 23

why increase ovulation rates

Answer 23

increase number of potential offspring