Defining a nitrogen efficiency index in Holstein cows and assessing its potential effect on the breeding program of bulls
ABSTRACT: 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 approxi...
| Main Authors: | , , , , , |
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| פורמט: | Article |
| שפה: | English |
| יצא לאור: |
Elsevier
2022-09-01
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| סדרה: | Journal of Dairy Science |
| נושאים: | |
| גישה מקוונת: | http://www.sciencedirect.com/science/article/pii/S0022030222004350 |