Castração e aplicação de ralgro no ganho de peso de novilhos em confinamento, alimentados com melaço 'in natura' e em pó

Autores

  • José Fernando Coelho da Silva UFV
  • Martinho de Almeida e Silva UFV
  • Herbert Vilela UFV

Palavras-chave:

melaço cana, ração animal, ganho peso, castração anabolizante, sabugo milho

Resumo

One hundred Gir x Holstein crossbred steers were used in a study to evaluate the effects on weight gain of molasses in natural vs. dehydrated form in dry lot feeding. The effects of RALGRO implantation and castration were studied as well, and the experiment was of completely randomized design.

Significantly higher (P < 0.05) daily weight gains were observed for animals receiving molasses in natura (0.62 kg), when compared with those receiving dehydrated molasses (0.49 kg). RALGRO and castration did not affect the daily weight gains (P > 0.05).

Referências

A.O.A.C. Association of Official Agricultural Chemists. Official Methods of Analyses. 11th edition. Washington. D.C. 1015 p. 1970.

DAVIS, LW. & MOHNEY, L.W. Blood urea-N and growth rate of DES or RAL treated steers. J. Animal Sci., 33(1):280. Abs. 1971.

DREWRY, K.J.; NELSON, L.A. & STOB, M. Winter gains of control and RAL treated heifers. J. Animal Sci., 33(1):281. Abs. 1971.

LENKEIT, W. & BECKER, M. Inspecção e Apreciação de Forrageiras. Lisboa. Ministério da Economia de Portugal. 152 p. (Bol. Pecuário n.o 2). 1956.

NICHOLS, N.E. & LESPERANCE, A.L. Effect of implantation of resorcylic pi lactone on performance of range beef cattle. J. Animal Sci., 33(1):294. Abs. 1971.

PERRY, T.W.; STOB, M.; HUBER, D.M,; PETERSON, R.C. & BEESON, W.M. Resorcylic acid lactone for growing and finishing beef cattle. Indiana Cattle Feeder’s Day Report. 1968.

WILSON, L.L.; VARELA-ALVAREZ, H.; RUGH, M.C. & BORGER, M.L. Growth and carcas characters of rams, cryptorchid wethers and lambs subcutaneosly implanted with Zeranol. J. Animal Sci. 34(2):336-338. 1972.

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Publicado

2025-03-24

Como Citar

Coelho da Silva , J. F., de Almeida e Silva, M., & Vilela, H. (2025). Castração e aplicação de ralgro no ganho de peso de novilhos em confinamento, alimentados com melaço ’in natura’ e em pó. Revista Ceres, 24(134), 371–375. Recuperado de https://ojs.ceres.ufv.br/ceres/article/view/6940

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