Desempenho na fase de crescimento de machos bovinos inteiros ou castrados de diferentes grupos genéticos
作者： João Restle , Dari Celestino Alves Filho , Cristian Faturi , Joilmaro Rodrigo Pereira Rosa , Leonir Luiz Pascoal
DOI: 10.1590/S1516-35982000000400013
关键词:
摘要: The objective of the experiment was to evaluate, during growth phase, dry matter intake, weight gain and feed conversion young bulls steers, castrated at eight month, from two breeding systems, straightbred (Charolais - C Nellore N) crossbred (1/2 CN, 1/2 NC), as well measure resulting heterosis. animals were confined nine twelve months fed a 15% crude protein diet 70:30 forage concentrate ratio. There no difference between steers for intake (DMI) in kg/animal.day (DMID), DMI per unit metabolic (DMIM) 100 kg live (DMIP). showed 13,7% higher average daily (ADG) more efficient (4.66 vs 4.99 DMI/kg gain) than steers. effect castration on pronounced calves sired by (1.00 1.19 kg) N (.91 .97 kg). F1 ADG straightbreds, 9.28% presented DMID N. However, DMIM DMIP similar groups. CN NC did not show studied variables. efficient, conversion, bulls.
rbz.org.br
cabdirect.org
sci-hub.se 参考文章(14)
João Restle, Celso Grassi, Gelson Luis Dias Feijó, Evolução do peso de bovinos de corte inteiros ou castrados em diferentes idades Pesquisa Agropecuaria Brasileira. ,vol. 29, pp. 1631- 1635 ,(1994)
João Restle, Celso Grassi, Gelson Luís Dias Feijó, Características de carcaça de bovinos de corte inteiros ou castrados em diferentes idades Pesquisa Agropecuaria Brasileira. ,vol. 29, pp. 1603- 1607 ,(1994)
C Y Lee, D M Henricks, G C Skelley, L W Grimes, Growth and hormonal response of intact and castrate male cattle to trenbolone acetate and estradiol. Journal of Animal Science. ,vol. 68, pp. 2682- 2689 ,(1990) , 10.2527/1990.6892682X
David J. Johnston, John M. Thompson, Keith Hammond, Additive and nonadditive differences in postweaning growth and carcass characteristics of Devon, Hereford, and reciprocal-cross steers. Journal of Animal Science. ,vol. 70, pp. 2688- 2694 ,(1992) , 10.2527/1992.7092688X
J. B. Morgan, T. L. Wheeler, M. Koohmaraie, J. D. Crouse, J. W. Savell, Effect of castration on myofibrillar protein turnover, endogenous proteinase activities, and muscle growth in bovine skeletal muscle Journal of Animal Science. ,vol. 71, pp. 408- 414 ,(1993) , 10.2527/1993.712408X
José Alberto Moreno, Clima do Rio Grande do Sul Boletim Geográfico do Rio Grande do Sul. pp. 49- 83 ,(1961)
João Restle, Renan Augusto Lisboa, Fabiano Nunes Vaz, Jorge Luis Carvalho Flores, Desempenho em confinamento, do desmame ao abate aos quatorze meses, de bovinos inteiros ou castrados, produzidos por vacas de dois anos Ciencia Rural. ,vol. 27, pp. 651- 655 ,(1997) , 10.1590/S0103-84781997000400022
João Restle, Volmir Antonio Polli, Dari Celestino Alves Filho, Dilceu Borges de Senna, Ricardo Zambarda Vaz, Régis Augusto Carvalho Bernardes, José Henrique Souza da Silva, Desenvolvimento de bovinos de corte de diferentes grupos genéticos desmamados aos 3 ou 7 meses de idade Revista Brasileira De Zootecnia. ,vol. 28, pp. 1023- 1030 ,(1999) , 10.1590/S1516-35981999000500017
José Luiz Moletta, João Restle, FEEDLOT PERFORMANCE OF STEERS FROM DIFFERENT GENETIC GROUPS Ciencia Rural. ,vol. 22, pp. 227- 233 ,(1992) , 10.1590/S0103-84781992000200018
Kepler Euclides-Filho, Valeria Pacheco Batista Euclides, Marcelo Paschoal de Oliveira, Geraldo Ramos Figuereido, Avaliacao de animais Nelore e seus mesticos con Charoles, Fleckvieh e Chianina, em tres dietas. 1. Ganho de peso e conversao alimentar Revista Brasileira De Zootecnia. ,vol. 26, pp. 66- 72 ,(1997)