搜索结果: 1-2 共查到“家畜育种学 THEIR EFFICACY”相关记录2条 . 查询时间(0.14 秒)
Study on efficacy of Probiotic in Broiler Chickens diet
Broiler Immunology Intestinal Morphology Probiotic
2013/2/27
400 days old chicks were distributed randomly into 4 treatments and 4 replicates in each treatment (25 birds in each replicate) and fed standard feed. The effects of different levels of probiotic in d...
METHODS OF IMPROVEMENT OF QUANTITATIVE TRAITS IN PIG BREEDING AND THEIR EFFICACY IN POLISH CONDITIONS
METHODS IMPROVEMENT QUANTITATIVE TRAITS PIG BREEDING THEIR EFFICACY POLISH CONDITIONS
2010/12/7
Improvement of animals based on breeding work is a set of activities aiming to obtain individuals with fi xed and desired traits. It is not possible to explicitly defi ne the best traits even in comme...