Data/hora: 09/06/2024 11:25:18

Provedor de dados: | 22
País: | Brazil

Título:

Effects of supply of β-adrenergic agonists on growth performance, carcass characteristics and meat quality of feedlot cattle

Efeitos do fornecimento de agonistas β-adrenérgicos no desempenho produtivo, características de carcaça e qualidade da carne de bovinos confinados

Autores: | Costa, Carolina Floret; Brichi, André Luis Coneglian; Pereira, Ismael Castro; Factori, Marco Aurélio; Martins, Cyntia Ludovico; Arrigoni, Mário De Beni.
Data: | 2015-12-11
Ano: | 2015
Palavras-chave: | Beta-agonistas; Confinamento.
Resumo: | To enhance the efficiency of production of beef, some countries use β-adrenergics, promoters of non-hormonal growth, on final phase of beef cattle. These substances are chemically and pharmacologically similar to the natural catecholamines (dopamine, noreprinephrine and eprinephrine) and promote an increase of the deposition rate of muscle tissue, with consequent decrease in the deposition of adipose tissue. The β-adrenergic most used in beef cattle are ractopamine hydrochloride and zilpaterol hydrochloride. These products should only be used in confined cattle during the finishing period. According to studies, there are various effects of administration of β-adrenergic for beef cattle. The main effects are increased muscle mass, with consequent increase of the carcass weight, weight gain and feed conversion. Greater carcass yield, larger loin eye area and larger diameter of the muscle fibers of the meat were also observed. In some studies, we obtained lower deposition of subcutaneous and visceral fat and lower marbling score in beef.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/10232

10.1818/sap.v14i4.10232

Editor: | Scientia Agraria Paranaensis
Relação: | http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/10232/9139
Formato: | application/pdf

Fonte:

Scientia Agraria Paranaensis; v. 14, n. 4 (2015); 247-251

1983-1471