1) lactating dairy cows
产奶牛
1.
A trial using 36 lactating Holstein cows was conducted to investigate the effect of partial replacement of corn grains with soybean hulls (SH) in lactating dairy cows diet on lactation performance.
选用36头产奶牛,按产奶量、泌乳月和胎次配对的原则随机均分为对照组和试验组。
2) Prepartum dairy cattle
围产奶牛
3) high producing dairy cow
高产奶牛
1.
Adding rumen bypass fat into the diets for high producing dairy cows is an important,economic and feasible way to resolve the problem of energy negative balance of high producing dairy cows.
在奶牛日粮中添加过瘤胃脂肪是解决高产奶牛能量负平衡问题重要而经济可行的途径。
4) poor dairy cattle
中低产奶牛
5) Holstein Friesian
黑白花产奶牛
6) milk production
产奶
1.
Along with the improvement of human health awareness and understanding to hazards of antibiotic residues, Lactic Acid Bacteria (LAB) has been more and more widely used to forage production as an additive of green environmental protection type, which could not only improve animal immunity、prevent animal from gastrointestinal diseases, also promote the growth of milk production.
目前,我国奶牛平均单产奶量仅为2800～3000kg/年,而国外奶牛平均单产则达到了7000kg/年,美国最高达到了8000kg/年。
参考词条
补充资料：草地上的奶牛业
草地上的奶牛业
草地上的奶牛业 王培摄
说明：补充资料仅用于学习参考，请勿用于其它任何用途。