لیست مقالات و کتاب های فیزیولوژی دام
تاریخ انتشار : ۲۱ مهر ۱۳۹۴
قیمت : رایگان
تعداد دانلود : 40
Reproductive performance in high-producing dairy cows: Can we sustain it under current practice?
Milk yields >10,000 kg/year are common in modern dairy production, owing to improved nutrition, management and genetic gains through use of progeny-tested bulls. However, reproductive performance has decreased worldwide in many cows with a high genetic potential for milk production, particularly in the Holstein breed. Moreover, cow robustness and longevity is also threatened by increasing stress, udder ...
نویسنده : مهدی بوربورمرادی