Hormone Control, Repoduction In Bitch And Queen Flashcards
What dose the Anterior pituitary gland hormone do?
Follicle stimulating hormone
Lutenising hormone
- cell stimulating hormone in the male (ICSH) prolactin
What hormones dose the ovaries Corpus luteum produce?
Oestrogen
Progesterone
What hormone do testies produce?
Testosterone
How many cycles dose a bitch have per year?
1-2 per year
- 1st cycle at 12-14 months
What happens in the oestrus cycle stage ?
Lasts (+-7days)
Drop in Oestrogen
Progesterone released in small amounts
Endometrium thickens
Behaviour of bitch at Pro-Oestrus stage?
Attractive to males
Flirting but wont mate
Behaviour of bitch at Oestrus stage?
Bitch will stand to be mated
Behaviour of bitch at Metoestrus stage?
Nesting behaviour begins
Will not stand to be mated
Behaviour of bitch at Anoestrus stage?
No sexual activity
What is the Oestrus cycle of the queen?
Seasonal works by day and night need 12 hrs of light pd to cycle
Induced ovulator
Only have inter-oestrus if not pregnant
If pregnant will have Metoetus phase
What is lactational anoestrus?
No cycle
Stimulation of mammary glands stops cycling untill kittens are weaned
What is the Inter-oestrus cycle in the queen?
Stop gap between cycles
What is the breeding cycle in Rabbits?
- Reflex ovulators Jan-July
- eggs are produced in ovary they are not released untill mated
Guinea pig breeding cycle?
Polyoestrus
More than one cycle per year
Spontaneous ovulators
Rats and mice breeding cycle?
Polyoestrus more than one cycle per year
No specific breeding season
Ferrets breeding cycle?
- Jill is in Oestrus from March-September
- induced ovulators
Gerbils breeding season?
Breed all year round polypestrus
Mate in the evening
What drug is used to control Oestrus?
Progestogens
Bitches should be allowed to have normal 1st season
Long term use can cause long term side effects
If progesterones are given during Anoestrus what happens?
Bitch will not start her cycle
If Progestogens are given during Pro-oestrus what happens?
Ovulation will be stopped bitch will return to Anoestrus
Progestogens can be given??
Orally or subcutaneously
What are the side effects of progestogen therapy?
Hyper plasma
Pyometra
Mammary tumors
Why are Oestrogens used in bitches??
Mated accidentally
Interfere with Zygote transport and implantation
What dose the hypothalamus endocrine gland do?
Gonado-trophic releasing hormone
