Puberty And The Estrous Cycle Flashcards
The stage of sexual maturation
Puberty
In males, puberty is marked by a desire to _ and the ability to ___ capable of fertilizing an egg.
mate, produce sperm
Puberty in female involves the production of _ by the _, the development of the _ to give the animal the capaity to _, and a desire for _.
Ova, follicles, reproductive tract, bear offspring, mating.
It is when female animals are receptive to breeding only during specific periods.
Estrus or heat
What marks the puberty in female animals?
The first estrus
True or False
Smaller breeds reach puberty earlier.
True
Age of puberty of heifer cattle
6-12 months
Age of puberty of gilt (swine)
4-8 months
Age of puberty of ewe lamb
5-9 months
Age of puberty in horses
10-12 months
Age of sexual maturity in dogs
6-12 months
Age of puberty in rabbits
5-8 months
True or false
Fowl do not mark puberty with estrus
True
Age of maturation in chickens
17-26 weeks
Age of maturation in turkeys
27-30 weeks
It is the period during which the female will accept the male for mating
Estrus or heat
The purpose of this cycle is to prepare the female’s reproductive tract for the release of the egg and recieving the embryo.
Estrous cycle
What are the 3 phases of the estrous cycle?
- Proestrus
- Estrus
- Diestrus
During this phase, a follicle matures to release the egg
Proestrus
During this phase the female is sexually receptive to the male for mating. The egg is also released by the ovary during this phase.
Estrus
The phase when the reproductive tract becomes less active, until the cycle begins again with proestrus
Diestrus
An animal that has only one estrus in a breeding season or year.
Monoestrus
Give me an example of an animal that is monoestrus.
Dogs (every seven months)
Animals that are in estrus more than once a breeding season or year.
Polyestrous
Examples of polyestrous animals.
cattle, swine, sheep, horses and rabbits
The cycle when the ewe is npt cycling
Anestrus
