搜索结果: 1-4 共查到“家畜饲养管理学 Holstein Cows”相关记录4条 . 查询时间(0.075 秒)
Relationships between growth and body condition development during the rearing period and performance in the first three lactations in Holstein cows
average daily weight gain body condition score heifer performance dairy cows
2015/10/9
The relationship between growth and development of body condition during the rearing of replacement heifers and their subsequent performance in the production period of Holstein cows in the Czech Repu...
Genetic relationship between milk dry matter and other milk traits in extended lactations of Polish Holstein cows
genetic parameters milk dry matter extended lactation milk urea nitrogen lactose
2015/6/8
The objective of this research was to examine heritabilities and genetic, phenotypic and permanent environmental relationships between milk dry matter (DM) and milk traits such as milk, fat, protein a...
Effect of Concentrate Feeding Frequency versus Total Mixed Ration on Lactational Performance and Ruminal Characteristics of Holstein Cows
Feeding Frequency TMR VFA Milk Production Holstein Cow
2016/4/8
This study was conducted to determine a proper feeding regime for lactating Holstein cows during the warm season in Taiwan. In Feeding Trial, 21 lactating Holstein cows were randomly allotted into thr...
Effect of Feeding Yeast Culture from Different Sources on the Performance of Lactating Holstein Cows in Saudi Arabia
Dairy Cows Yeast
2016/4/8
One hundred-fifty lactating, multiparous cow at post-peak of lactation were used to examine the effect of dietary yeast supplementation on milk production, milk composition and ruminal fermentation. T...