Data/hora: 16/06/2024 01:41:28

Provedor de dados: | 89
País: | Brazil
Título: | Effect of dietary fiber and genetic strain on the performance and energy balance of broiler chickens
Autores: | Krás,RV; Kessler,AM; Ribeiro,AML; Henn,JDi; Santos,II dos; Halfen,DP; Bockor,L.
Data: | 2013-03-01
Ano: | 2013
Palavras-chave: | Cobb; Label Rouge; Pair-fed; Wheat bran.
Resumo: | The experiment was conducted to evaluate the effect of dietary fiber on the performance and energy balance of broiler chickens of a fast-growing strain (Cobb500) and a slow-growing strain (Label Rokens during the period of 1 one to 42 days of used In total, 360 male broilers (240 fast-grorain and 120 slow-grtrain)were, housed in collective cages. A completely randomized experimental dewith in a 3x2 factorial arrangement was applied, consisting of three groups of birds (slow-growing - SG; fast-growing fed ad libitum - FGAL; and fast-growing pair-fed with SG broilers - FGPF) and two iso-protein dis (a 3100 kcal ME/kg low-fiber diet and a 2800 kcal ME/kg high-fiber diet- Hwith containing 14% wheat bran and 4% oat hulls). Dietary fiber level did not affect feed intake (FI); however, it resulted in lower weight gain (WG) and worse feed conversion ratio (FCR) (p &lt; 0.001) in birds fed the HFD diet due to its lower energy content. The FGPF group presented higher WG than SG and better FCR (p &lt; 0.001), indicating that fast-growing birds present better performance than SG broilers, even under restricted feed intake. The SG group retained more energy relative to body weight (p &lt; 0.001), which is associated to higher body fat retention in this strain (p &lt; 0.001). The slow-growing strain did not present better use of high-fiber diet than fast-growing strain as expected.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100003
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/S1516-635X2013000100003
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.15 n.1 2013
Fonte: | info:eu-repo/semantics/openAccess