资讯

Advances in selective breeding and artificial insemination have fuelled the global spread of a small number of profitable ...
As key providers of milk, meat, leather and labor, cattle are one of the most important livestock species worldwide and have been domesticated since the early Neolithic period (Loftus et al., 1994, ...
The crossbreeding had herds that were composed from the Holstein breed’s crosses between the Zebu breeds (Gir, Guzerá, Tabapuã, and Nelore) in different blood grades, from three to 12 years of age and ...