2012
DOI: 10.1590/s0102-09352012000600004
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: RESUMOForam obtidas estimativas de variância fenotípica, genética e residual, herdabilidades e correlações genéticas para as características reprodutivas em 5.903 animais da raça Nelore. O modelo experimental utilizado foi o método de máxima verossimilhança restrita livre de derivadas. Os valores de herdabilidade foram de 0,24±0,05 para perímetro escrotal aos 450 dias de idade e de 0,37±0,05 aos 21 meses de idade, na ocasião do exame andrológico; de 0,24±0,05 e 0,26±0,05 para comprimento dos testículos esquerd… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3

Citation Types

1
1
1

Year Published

2015
2015
2024
2024

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 10 publications
(3 citation statements)
references
References 18 publications
1
1
1
Order By: Relevance
“…Genetic correlations among testicle biometry traits were favourable and moderate or high (Figure ). Testicle width and length exhibited positive and moderate genetic correlations, which are similar to the results of Silveira et al (). Probably the same genes control the testicle width and length.…”
Section: Discussionsupporting
confidence: 90%
See 1 more Smart Citation
“…Genetic correlations among testicle biometry traits were favourable and moderate or high (Figure ). Testicle width and length exhibited positive and moderate genetic correlations, which are similar to the results of Silveira et al (). Probably the same genes control the testicle width and length.…”
Section: Discussionsupporting
confidence: 90%
“…Evaluating Nellore bulls, Silveira et al () found heritabilities lower than that of the present study for testicle width and length, ranging from 0.24 to 0.31. The high heritabilities observed for length and width of both testicles in the present study indicate that high genetic gains could be achieved for these traits in this population.…”
Section: Discussioncontrasting
confidence: 82%
“…Testicular biometrical traits are related to age at puberty in cattle [ 53 ]. Previous Nellore cattle studies have reported high heritability estimates ranging from 0.24 to 0.46 for testicular length and from 0.12 to 0.31 for testicular width [ 54 , 55 ]. Both traits need to be carefully measured by a well-trained evaluator as they are fundamental for the appropriate calculation of TV and FT [ 30 ].…”
Section: Discussionmentioning
confidence: 99%