Estudio de las correlaciones genéticas y de ambiente para el peso al destete en bovinos de la raza Nelore en el Brazil.

Records on 105 465 Nellore calves born from 1977 to 1994 in eight regions of Brazil were studied to evaluate the effects fo genotype x environment interaction on weaning weight calves. Teh interactions were estimated by the genetic correlation of weaning weight in defferent regions. To eastimate the variance and covariance components to obtain the genetic correlation of weaning weight under different regions, a sire model and MTDFREML solftware wereused for two regions each time. The matematical model included the fixed effects of year(17) and month(12),sex(2) of calf, farm(419) and age of dam (covarable), and the random effect of sire(588) and dam (57 162). The sire components of variance for each of the regions where 20.33,28.08,17.72,29.80,34.36, 38.08, 37.72 and 21.44. The phenotypic componrnt were 375.11, 430.65, 406.63, 408.99, 400.44, 412.71 and 335.74; for regions one two eight, respectively. T

Bibliographic Details

Main Authors:	SOUZA, J. C., SILVA, L. O. C. da, RAMOS, K. E. F. A. de, ALENCAR, M. M. de, GADINI, C. H., VELAZSCO GUTIERREZ, R. R., VLECK, L. D. van
Other Authors:	J. C. DE SOUZA, IZ; LUIZ OTAVIO CAMPOS DA SILVA, CNPGC; K. E. F. A. DE A. RAMOS, UNESP; MAURICIO MELLO DE ALENCAR, CPPSE; C. H. GANDINI, IZ - S.A.A. DE RIBEIRÃO PRETO; R. R. VELAZSCO GUTIERREZ, UNESP; L. DALE VAN VLECK, UNIVERSITY OF NEBRASKA.
Format:	Artigo de periódico biblioteca
Language:	Espanhol Spanish / Castilian
Published:	1998-08-11
Subjects:	Nelore, Peso ao destete, genetic parameter, Gado de Corte, Parâmetro Genético, Nellore, weaning weight,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/44151
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