Data/hora: 10/06/2024 16:54:51

Provedor de dados: | 96
País: | Brazil
Título: | Nutritional plans of digestible phosphorus for growing-finishing barrows
Autores: | Santos Nieto,Viviane Maria Oliveira dos; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Gonçalves,Liliane Maria Piano; Marçal,Danilo Alves; Abreu,Rodrigo Caetano de; Santos,Alexandre Pereira dos; Alencar,Stephan Alexander da Silva.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Carcass characteristics; Mineral requirements; Nutrient requirement.
Resumo: | ABSTRACT This study was conducted to evaluate nutritional plans of digestible phosphorus for barrows weighing between 30 and 100 kg. Eighty animals were distributed in a randomized block design with five nutritional plans containing 2.19-1.86-1.71, 2.57-2.23-2.09, 2.94-2.61-2.46, 3.32-2.99-2.84, and 3.70-3.36-3.32 g of digestible phosphorus kg−1 of diet, respectively, for the phases of 30 to 50 kg, 50 to 70 kg, and 70 to 100 kg, with eight replications and two barrows per experimental unit. The nutritional plans of digestible phosphorus had no effect on the final body weight, feed intake, daily weight gain, or feed conversion of barrows. The daily intake of digestible phosphorus increased with the dietary concentrations of digestible phosphorus. Of the carcass characteristics assessed, only muscle depth responded significantly to the highest concentration of digestible phosphorus, as assessed in barrows sequentially fed the 3.70-3.36-3.32 g kg−1 diet. The nutritional plans had no effect on backfat, rib eye area, or carcass lean tissue mass, percentage, and deposition. The nutritional plan containing 2.19-1.86-1.71 g kg−1 of digestible phosphorus meet the nutrient requirements for performance and carcass characteristics of barrows weighing from 30 to 100 kg.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100527
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/rbz4720170094
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.47 2018
Fonte: | info:eu-repo/semantics/openAccess