reproduction Flashcards
what are the testis for
spermiogenesis
-production of testostrone
whats the role of the epididymis
transport sperm to vas deferns
- storage of sperm
- maturation of sperm
- absorption of older sperm
role of vas deference and accessory glands
- connect epididymis to the urethra
- at ejaculate, the sperm is mixed with secretions from the accessory glands
- the semen is 95% seminal fluids
urethra
fine duct within the penis for the relese of sperm or urine
FSH (follicle stimulating hormone)
promotes spermiogenesis
LH (luteinizing hormone)
promotes androgen secrections such as testosterone and the development and release of the egg
what are androgens
male sex hormones produced in the testicular Leydig cells
- involved in development of sexual charactoristics
- rapid growth
- lower body fat
- horns
- aggression
- libido
puberty in the male is defined as
capacity to fertilize the female
-production of viable sperm
what hormones do ovaries produce
progesterone and oestrogen
whats the cycle length for ewe
17 days
whats the cycle length for sow
20
whats the cycle length for mare
22
FSH in a female (Follicle stimulating hormone)
produced in peturity gland
-promotes growth and development of eggs/ovato stage of ovulation
FSH in a female (Follicle stimulating hormone)
produced in peturity gland
-promotes growth and development of eggs/ova to stage of ovulation
role of estrogen
produced by overies
- acts on
- increase LH production
- crevix- increase mucus production
- body- secoundary sexual charactoristics
LH in femals
produced in paturity gland
cuses the release of the ova
progestrone in females
produced in corpus lutea on the ovary
responsible for
-preventing cycling
what is prostoglandin
stops production of progestrone by by causing regression of corpus lutea
puberty in the female
ability to release an egg and conceive
in practice it is when the female first exhibits estrous
what are dirvers for puberty to occur in females
seasonality
- other cycling females
- mature males
in a farming system breeding at a oyunger age
increases production
why controll ovulation
and how
allow easier use of reproductive tech
- allow fro a compact breding and birthing period
- using prostaglandin and progestrone
why increase ovulation rates
increase number of potential offspring
