Data/hora: 10/06/2024 05:38:07

Provedor de dados: | 2
País: | Brazil

Título:

Breed and selection line differences in the temperament of beef cattle - doi: 10.4025/actascianimsci.v35i2.16426

Breed and selection line differences in the temperament of beef cattle - doi: 10.4025/actascianimsci.v35i2.16426

Autores: | Piovezan, Ubiratan; Empresa Brasileira de Pesquisa Agropecuária; Cyrillo, Joslaine Noely dos Santos Gonçalves; Instituto de Zootecnia do Estado de são Paulo; Costa, Mateus José Rodrigues Paranhos da; Universidade Estadual de São Paulo.
Data: | 2012-12-03
Ano: | 2012
Palavras-chave: | 5.04.00.00-2 beef cows; Behavior; Fear; Husbandry.
Resumo: | The temperament of four beef cattle breeds were measured using a flight time test (FT) and a behavior score test (BST). FT was defined as the time taken by animals to cross a distance of 2 m after weight scale. The BST used a visual assessment of cattle behavior in which the results of four categories defined the score: movements, breathing intensity, vocalization and kicking. FT and BST coefficients of heritability were estimated using the restricted maximum likelihood, considering half siblings. Caracu presented a lower BST value than the other breeds. Nellore presented intermediate results, followed by Guzerat and Gyr with similar and higher means (p &amp;lt; 0.05). Similar results were observed with FT, but Caracu and Nellore did not differ from each other. A low association between FT and BST was found (rp= -0.36; p &amp;lt; 0.01). The correlation between a sire’s ranking, according to the predicted breeding values (p) estimated for FT and BST, was moderate and negative (rs = -0.63; p &amp;lt; 0.001). Heritability estimates for FT and BST were 0.35 and 0.34, respectively. Inside Nellore breed, herds with different selection criteria for weight were compared. Our results show that selection line based on weight might positively modulate temperament of Bos indicus cattle.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16426

10.4025/actascianimsci.v35i2.16426

Editor: | Editora da Universidade Estadual de Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16426/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16426/pdf_1

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/downloadSuppFile/16426/3811

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Animal Sciences; v. 35, n. 2 (2013); 207-212

Acta Scientiarum. Animal Sciences; v. 35, n. 2 (2013); 207-212

1807-8672

1806-2636

Fonte:

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DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Animal Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).