Article
Defining a nitrogen efficiency index in Holstein cows and assessing its potential effect on the breeding program of bulls.
Journal of dairy science - 1 Sept 2022
Chen Y, Atashi H, Grelet C, Vanderick S, Hu H, Gengler N
Abstract excerpt
The purposes of this study were (1) to explore the relationship between 3 milk mid-infrared predicted features including nitrogen intake (NINT), milk true protein N (MTPN), and milk urea-N yield (MUNY); (2) to integrate these 3 features into an N efficiency index (NEI) and analyses approximate genetic correlations between the NEI and 37 traits (indices) of interest; and (3) to assess the potential effect of...
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