Post-weaning feeding levels on feeding behavior, growth and development in Holstein dairy heifers
Efeito dos níveis de alimentação pós-desmame sobre o comportamento ingestivo, crescimento e desenvolvimento em novilhas leiteiras da raça Holandês
Resumen:
To study the effect of post-weaning feeding levels on the growth of dairy heifers, 40 animals with 77.7 ± 8.1 days of age and 77.5 ± 9.2kg of body weight were grouped in 10 pens, and each pen was randomly assigned to one of the following treatments for 120 days: feeding level to achieve a body weight gain of 600 (TMEDIUM) or 800 (THIGH) g/day based on a total mixed ration. After this period all heifers were managed as a single group for 150 days. Nutrient intake, behavior, body weight and other morphological measures were recorded in each animal. As a result of the experimental design THIGH heifers had a higher nutrient intake than TMEDIUM heifers, which was reflected in a higher daily weight gain, withers height, heart girth and hip width. However, treatments had no effect on these traits during the residual period.
| 2018 | |
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BOVINOS ALIMENTACION DE LOS ANIMALES NUTRIENTES |
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| Español | |
| Universidad de la República | |
| COLIBRI | |
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https://hdl.handle.net/20.500.12008/51535
https://doi.org/10.1590/0103-8478cr20161083 |
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| Acceso abierto | |
| Licencia Creative Commons Atribución (CC - By 4.0) |
