Data/hora: 06/06/2024 02:38:08

Provedor de dados: | 65
País: | Brazil
Título: | Physicochemical characterization and lipid profile of meat from crossbred
Autores: | Pimentel,Leidiane Reis; Silva,Fabiano Ferreira da; Silva,Robério Rodrigues; Rocha,Wéder Jânsen Barbosa; Souza,Sinvaldo Oliveira de; Costa,Edvaldo Nascimento; Costa,Evely Giovanna Leite.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Loin-eye area; Mineral mixture; Nutritional plan; Saturated fatty acids.
Resumo: | ABSTRACT:  The aim of this study was to evaluate the carcass characteristics and the physicochemical parameters, centesimal composition, and fatty acid profile of the longissimus lumborum muscle of crossbred steers on a Brachiaria (Syn. Uruchloa) brizantha cv. Marandu pasture during the growing and finishing phases. Twenty-two uncastrated steers ½ Holstein/Zebu, with an average initial weight of 210 kg ± 8.2 kg and eight months of age, were distributed in a completely randomized design, in which the experimental period was fractionated in to three seasons associated with two nutritional plans (NP1 and NP2) and 11 animals by treatment: NP1- mineral mixture ad libitum in rainy seasons + nitrogen/energy supplement at 1 g.kg-1 body weight (BW) in the dry season; and NP2 - nitrogen/energy supplement at 2 g.kg-1 BW in rainy season 1 and in the dry season + nitrogen/energy supplement at 1 g.kg-1 BW in rainy season 2, provided daily at 1000 h. Of the carcass measurements, differences were only observed (p&gt;0.05) between the nutritional plans for loin-eye area corrected for 100 kg of hot carcass weight. Among the physicochemical parameters, only shear force was influenced (p&gt;0.05) by the treatments, with higher values obtained in Nutritional Plan 1. The centesimal composition and fatty acid profile were not influenced (P&lt;0.05) by supplementation. Nutritional plans used in the growing and finishing phases involving low levels of protein-energy supplementation do not lead to changes significant in carcass characteristics and meat. Nutritional Plan 1 is the most appropriate because it presents a lower cost.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001100702
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20190198
Formato: | text/html
Fonte: | Ciência Rural  v.49 n.11 2019
Fonte: | info:eu-repo/semantics/openAccess