The even degree of chicken population could be estimated by thecoefficient of variation or the percentage of the chicken whose body weights were not higher and
A new culture medium for the synthesis of exopolysaccharide bystreptococcus salivarius subsp.thermophilus was formulated,based on MRS ,M17 ,ATP,SL ,Elliker,SDM
According to the principle of belt seeding establishment ofadhesive-bonded fabric ,applied indexes of belt seeding establishment effect were studied using carri
Antibiotics have been used in animal feeding for long history.Inrecent years ,much attention has been received for their negative effects on animal and human be