Production and reproduction in Holstein dairy cows and different crosses in a grazing system
Fertility is one of the key factors in efficient pasture-based systems. The objective of this study was to evaluate the productive and reproductive performance of different crossbreeds and dairy breeds in a commercial grazing dairy farm in the province of Santa Fe, Argentina. Retrospective data were...
Guardado en:
| Autores principales: | , , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
| Publicado: |
Universidad Nacional del Nordeste
2025
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| Materias: | |
| Acceso en línea: | https://revistas.unne.edu.ar/index.php/vet/article/view/8505 |
| Aporte de: |
| Sumario: | Fertility is one of the key factors in efficient pasture-based systems. The objective of this study was to evaluate the productive and reproductive performance of different crossbreeds and dairy breeds in a commercial grazing dairy farm in the province of Santa Fe, Argentina. Retrospective data were analyzed for the period from August 1, 2017, to January 12, 2021 (41 months). The database consisted of 1,342 pure Holstein (HO) lactations (799 cows), 344 HO x Jersey (JY) crossbreed lactations (164 cows), 190 JY * Montbéliarde (MO) crossbreed lactations (96 cows), and 316 MO x HO (XB) crossbreed lactations (134 cows). The 305-day milk production results (PL305) for first parity showed that JY and HO were statistically different from the other groups (p<0.05). For second and third parity, JY and MO differed from XB and HO (p<0.05). The number of services per conception (NS/C) differed between HO and XB (p<0.05) and between JY and XB (p<0.05). HO and XB cows, except for the first lactation, showed similar performance and were superior to other crossbred groups in milk yield, demonstrating the individual production superiority of the Holstein genotype. Crossbred cows outperformed in reproductive traits, with HO x Jersey crosses being the most efficient. |
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