Data/hora: 17/06/2024 07:37:53

Provedor de dados: | 65
País: | Brazil
Título: | Net energy for 60- to 120-kg pigs fed low-crude protein diets
Autores: | Saraiva,Alysson; Donzele,Juarez Lopes; Oliveira,Rita Flávia Miranda de; Silva,Francisco Carlos de Oliveira; Abreu,Márvio Lobão Teixeira de; Santos,Fabrício de Almeida; Haese,Douglas.
Data: | 2014-09-01
Ano: | 2014
Palavras-chave: | Carcass; Finishing phase; Nutrition; Requirement.
Resumo: | Two experiments were conducted to determine the effects of dietary net energy content (NE) on performance and carcass traits of finishing barrows fed low-crude protein (CP) diets. Pigs (60.0±1.05kg, Exp. 1, 93.0±1.56kg, Exp. 2) were allotted in a randomized block design to 3 dietary treatments. Exp. 1 had 6 pens treatment-1 and Exp. 2 had 8 pens treatment-1 and all pens had 2 pigs. The treatments were: 199g kg-1 CP and 2566kcal kg-1 NE, 155g kg-1 CP and 2631kcal kg-1 NE, 155gk g-1 CP and 2566kcal kg-1 NE in Exp. 1, and 180g kg-1 CP and 2588kcal kg-1 NE, 145g kg-1 CP and 2638kcal kg-1 NE, 145g kg-1 CP and 2588kcal kg-1 NE, in Exp. 2. In Ep.1, except for average daily gain (ADG) there was no effect of dietary CP or NE on any other parameter evaluated. The diet with 155g kg-1 CP and 2566kcal kg-1 NE resulted in greatest ADG. In Exp. 2, the greatest results of ADFI and ADG were obtained with 145g kg-1 CP and 2588kcal kg-1 of NE. Pigs fed the diet with 180g kg-1 CP and 2588kcal kg-1 NE had less carcass meat. There was no effect of dietary CP or NE on backfat. The CP diet containing 2566kcal kg-1 NE resulted in greatest ADG of 60- to 95-kg barrows. For 95- to 120-kg barrows the diet with 145gk g-1 CP and 2588kcal kg-1 of NE resulted in greatest ADG and carcass meat.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000901632
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20131136
Formato: | text/html
Fonte: | Ciência Rural  v.44 n.9 2014
Fonte: | info:eu-repo/semantics/openAccess