ADSC 4300 Lecture Notes - Lecture 16: Secondary Sex Characteristic, Myocyte, Castration

• School: University of Georgia
• Department: Animal and Dairy Sciences
• Course: ADSC 4300
• Professor: Liu

Document Summary

Factors affecting whole body growth: genetics, species, selection/domestication, breed/strain- different breeds of livestock animals differ in their ability to grow, frame size, type, chickens- fat line & lean line. In cattle, there are meat type & dairy type. In pigs, there are meat type & maternal type: meat type have more muscle than maternal type, same compositional differences as in cattle (dairy vs beef, gender, growth & composition are dependent on gender. Intact males are capable of higher body weight than castrated males and females. Intact males are always bigger: because intact males are bigger, they attain a compositional maturity at a later chronological age than castrated males and females. (similar to large framed animals) I(cid:374) (cid:272)attle, the i(cid:374)ta(cid:272)t (cid:373)ale is(cid:374)"t (cid:271)etter to raise (cid:271)e(cid:272)ause it (cid:449)ill (cid:374)ot give off as much product as a steer or heifer would: the intact male generates more low quality meat.