Fecha/hora: 12/06/2024 06:20:54

Biblioteca(s): | INIA Treinta y Tres.
Fecha corriente: | 30/12/2022
Fecha de la última actualización: | 03/01/2023
Autoria: | FEDRIGO, J. K.; SANTA CRUZ, R.; DA SILVA, C.; BÁEZ, F.; VIÑOLES, C.
Afiliación: | JEAN K. FEDRIGO, Polo de Desarrollo Universitario (PDU) Agroforestal, Casa de la Universidad de Cerro Largo, Universidad de la República (Udelar), Bañados de Medina, Cerro Largo, Uruguay; RODRIGO SANTA CRUZ, Polo de Desarrollo Universitario (PDU) Agroforestal, Casa de la Universidad de Cerro Largo, Universidad de la República (Udelar), Bañados de Medina, Cerro Largo, Uruguay; CARLOS DA SILVA, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay.; FRANCISCO BÁEZ, PDU Instituto Superior de la Carne, Centro Universitario de Tacuarembó, Udelar, Tacuarembo, Uruguay.; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Polo de Desarrollo Universitario (PDU) Agroforestal, Casa de la Universidad de Cerro Largo, Universidad de la República (Udelar), Bañados de Medina, Cerro Largo, Uruguay. INIA (Instituto Na.
Título: | Effect of creep feeding with rice bran and temporary weaning on cow-calf performance.
Año de publicación: | 2022
Fuente/Imprenta: | Journal of Animal Physiology and Animal Nutrition, (Berl), 2022, Dec 16. Online ahead of print. doi: https://doi.org/10.1111/jpn.13794
ISSN: | 1439-0396
DOI: | 10.1111/jpn.13794
Idioma: | Inglés
Notas: | Article history: First published: 16 December 2022.

Contenido:

This study was conducted to investigate if calves supplemented with rice bran in a creep feeding (CF) system associated with temporary weaning (TW) affects the
performance of the cow-calf pair grazing natural grasslands during summer. Two experiments were performed using 275 cow-calf pairs of British breeds and their
crosses of different parities (primiparous [n = 188] in Experiment 1 and multiparous [n = 87] in Experiment 2). In both experiments, the factors evaluated were:
(1) supplementation of calves with rice bran using CF: yes (+CF) or no (-CF); (2) TW for 14 days using nose plates: yes (+TW) or no (?TW). Four experimental groups
were formed in both experiments: -CF - TW, -CF + TW, +CF -TW and +CF + TW. TW decreased the average daily weight gain and live weight of calves independently
of the age of their mothers. The use of CF decreased both of these parameters in calves born to primiparous cows, and there was no response in the case of calves
born to multiparous cows. A greater proportion of primiparous cows that received +CF conceived in the first 21 days of mating (+CF -TW= 63.5% and +CF +TW=
50%) than the other groups. The final pregnancy rate was similar among groups in both experiments. In conclusion, TW decreased the average daily weight gain and
weaning weight of calves. Supplementation of calves born to primiparous cows with rice bran decreased their daily weight gain during the period of TW and their
weaning weight, but their dams were conceived earlier. 
© 2022 Wiley-VCH GmbH.

Palabras-Clave: | BEEF CATTLE; CALF WEANING WEIGH; HERBAGE ALLOWANCE.
Categoría del tema: | L01 Ganadería
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (104220-1) - PXI - AP - DD - PP/JAPAN-2022 -  -  - DIS