Basic reproduction Flashcards
Cow - Uterus type:
Bipartite, smaller uterine horns
Ewe - Uterus type:
Bipartite, smaller uterine horns
Mare- Uterus type:
Modified bipartite, larger uterine body, smaller horns
Sow- Uterus type:
Bicornuate, long uterine horns
Bitch - Uterus type:
Bicornuate, long uterine horns
Queen - Uterus type:
Bicornuate, long uterine horns
Primates - Uterus type:
Simplex, no uterine horns
Which species has a epitheliochorialis placenta?
Cow, mare, ewe, sow
Which species has a endotheliochorialis placenta?
Queen, bitch
which species has convex placentomes?
Cow
which species has concave placentomes?
ewe
which species has diffuse placentomes?
Mare, sow
What are the two phases of estrus?
Follicular and Luteal
Who has surge center?
ONLY FEMALES
Where is LH produced?
Hypophysis
Who has tonic center?
males and females
Which hormone is responsible for ovulation?
LH
Which hormone is responsible for follicle growth?
FSH
Which hormone can be used as diagnostic tool to predict ovulation?
LH
Surge center is influenced by:
Estrogen
Melatonin is produced in:
Pineal gland
Kisspeptin stimulate and inhibit:
GnRH secretion
Long-day breeder species:
Horse , low level melatonin give positive feedback
Short-day breeders species:
Sheep, high level of melatoning give positive feedback.
FSH is produced in:
pituitary gland
When do we have high levels of FSH ?
Follicular phase , since it stimulates growth of them
Where is estrogen produced? (female)
tertiary follicle
When does ovulation happen in the cat?
when mating occurs
when is the estrus of cats?
A queen enters estrus every 17 days, lasts for 9 days
When is PGF2alpha produced?
when there is no pregnancy - CL ungergo luteolysis
Puberty: sheep
7m
Puberty: goat
7m
Puberty: cow
11m
Puberty: mare
1-1,5y
Puberty: sow
5-6m
Puberty: bitch
1y
Puberty: queen
8m
Estrus length: sheep
30h
Estrus length: goat
> 30h
Estrus length: cow
15h
Estrus length: mare
5-7d
Estrus length: sow
50h
Estrus length: bitch
9 days
Estrus length: queen
3-10d
Cyclicity of : sheep
Seasonally polyestrous short day breeder
Cyclicity of : goat
Seasonally polyestrous short day breeder
Cyclicity of : cow
Polyestrous
Cyclicity of : mare
Seasonally polyestrous long day breeder
Cyclicity of : sow
Polyestrous
Cyclicity of : bitch
Monoestrous
Cyclicity of : queen
Polyestrous but prefer spring and summer