Relationships between birth or calving seasons and first-lactation performance of Holstein cows in the Midwestern United States
The purpose of this study was to establish the effects of birth season on performance of first-lactation Holstein cows. Further analysis was conducted to determine if the impact of calving season was a more appropriate indicator. This study analyzed data from 2009 to 2022 and included 524 primiparou...
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| Hlavní autoři: | , |
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| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
Elsevier
2025-09-01
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| Edice: | JDS Communications |
| On-line přístup: | http://www.sciencedirect.com/science/article/pii/S2666910225000912 |
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