Research Article

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V. Cravero; E. Cointry; I. Gatti; F.López Anido
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Carcass traits; Cattle; Heritability; Slaughter end points

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A.Ríos Utrera; L.Dale Van Vleck
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M. Basualdo; E.M. Rodríguez; E. Bedascarrasbure; D. De Jong
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Behavior; Competition effects; Heritability; Review; Swine

A review of previous studies is presented on estimates of genetic parameters and responses to selection with traditional breeding approaches, on correlations between agonistic behavior and growth performance, and on theoretical frameworks for selection incorporating interactions among individuals and on practical methods for incorporating competition effects in breeding programs.

C.Y. Chen; R.K. Johnson; L.D. Van Vleck; S. Newman
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Expected progeny difference; Genetic correlation; Heritability; Method Â; Non-linear model; Sexual precocity

Data of pregnancy diagnosis from 24,945 Nellore heifers, raised under tropical conditions in Brazil and exposed to breeding at about 14 months of age, were analyzed simultaneously with 13,742 (analysis 1), 36,091 (analysis 2), 8,405 (analysis 3), and 8,405 (analysis 4) scrotal circumference (SC) records of contemporary young bulls in order to estimate heritability (h2) for yearling ... more

J.P. Eler; E.C. Mattos; G.B. Mourão; J.B.S. Ferraz; J.C.C. Balieiro
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A data set concerning 1,816 subjects entered in the Italian Horse Registry from 1925 to 2002 was analyzed to investigate the morphological evolution of the Murgese horse and to obtain useful elements to enhance breeding practices. Three basic body measurements (height at withers, chest girth, and cannon bone circumference) were considered for each subject. Heritabilities were ... more

C. Dario; D. Carnicella; M. Dario; G. Bufano
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Cucurbitaceae; Genetic control; Heritability; Whitaker

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C.B. de Menezes; W.R. Maluf; S.M. de Azevedo; M.V. Faria; I.R. Nascimento; D.W. Nogueira; L.A.A. Gomes; E. Bearzoti
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Abdominal fat pad; Correlation; Genetic parameters; Heritability; Sib test
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