Write short notes on controlled breeding experiments

Explanation

Controlled breeding experiments are carried out using artificial insemination and multiple ovulation and embryo transfer technology.
* In this technique the semen is collected from superior bulls. This semen can be used immediately or can be frozen adn used later period. It can be transported in a frozen form to place where a female is housed.
* Meanwhile a cow or animal is administered hormones, with FSH like activity.
* These hormones induces follicular maturation and super ovulation
* Now the cow is artificially inseminated for fertilisation.
* The embryos are at 8-32 celled stages are recovered non-surgically and transferred to surrogate mother uterus for further development.
This technology is use for cattle, sheep, rabbits, buffaloes etc. By using this method we can produce high milk and meat yielding animals and also control the venereal diseases.