A computer keeps record on their eating and milking. 有一臺電腦會(huì )記錄他們的進(jìn)食量和擠奶量。
Butanedione as feed scenting agent may improve appetite and capacity for eating of animal,and increase efficiency of production. 丁二酮作為飼料香味劑，可增加動(dòng)物食欲及采食量，提高生產(chǎn)效率。
滬公網(wǎng)安備 31011502000490號
電信業(yè)務(wù)許可證編號：滬B2-20190700
