Study on General Lactation Curve Models and Milk Composition Change Models of Chinese Holstein Cows in the North of China
XIONG Ben-hai，YANG Liang，YANG Qin，PAN Xiao-hua，HAN Ying-dong，PANG Zhi-hong
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2014, (12): 1939 -1948 .  DOI: 10.11843/j.issn.0366-6964.2014.12.005