患腐蹄病奶牛的锌营养状况分析

周华林;吴立夫;熊江林

Zinc Nutritional Level in Foot-rotten Dairy Cows

ZHOU Hua-lin;WU Li-fu;XIONG Jiang-lin

China Animal Husbandry & Veterinary Medicine . 2010, (4): 180 -181 .