中国奶牛
中國奶牛
중국내우
CHINA DAIRY CATTLE
2012年
3期
16-18
,共3页
终身效益指数%加拿大荷斯坦牛%遗传增量
終身效益指數%加拿大荷斯坦牛%遺傳增量
종신효익지수%가나대하사탄우%유전증량
Life Prodit Index%Holstein%Inherit Gains
终身效益指数是加拿大选择公母牛的主要依据，对提高产奶量和奶品质及牛的强壮度具有重要意义。通过指数选择2010年加拿大的荷斯坦泌乳牛单产已超过9700kg，乳脂率3．8％，乳蛋白率3．2％，体细胞数低于202万个／mL、细菌数355万以下，真正做到了优质高产。
終身效益指數是加拿大選擇公母牛的主要依據，對提高產奶量和奶品質及牛的彊壯度具有重要意義。通過指數選擇2010年加拿大的荷斯坦泌乳牛單產已超過9700kg，乳脂率3．8％，乳蛋白率3．2％，體細胞數低于202萬箇／mL、細菌數355萬以下，真正做到瞭優質高產。
종신효익지수시가나대선택공모우적주요의거，대제고산내량화내품질급우적강장도구유중요의의。통과지수선택2010년가나대적하사탄비유우단산이초과9700kg，유지솔3．8％，유단백솔3．2％，체세포수저우202만개／mL、세균수355만이하，진정주도료우질고산。
Lifetime Profit Index （LPI） is a primary selection tools for bull and cow in Canada, it have important significance to increase mike production, quality and dairy strength. By means of the Index selection, the milking cow yield （305d） in Canada had achieved over 9 700kg, fat rate 3.8%, protein rate 3.2% in 2010. Somatic cell counts was 200 000/mL below, bacterial counts 30 000 below. The dairy herd had realized high quality and high yield. Now, some concerned information would be introduced as follow.
