Data/hora: 10/06/2024 05:32:17

Provedor de dados: | 63
País: | Brazil
Título: | Multiphase feeding program for broilers can replace traditional system
Autores: | Hauschild,Luciano; Bueno,Camila Ferreira Delfim; Remus,Aline; Gobi,Jaqueline de Paula; Isola,Renan Di Giovanni; Sakomura,Nilva Kazue.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Avinesp 1.0; Precision nutrition; Body composition; Levels of lysine.
Resumo: | Broilers are traditionally managed with feeding programs that often consist of three or four phases. In this study we investigated whether a multiphase feeding program (14 phases) of broilers based on the optimal mix of two feeds could replace a traditional four phase system while maintaining broiler performance. To evaluate this prposed program we measured variables of performance, carcass yield, and nitrogen excretion. In addition, we determined if the multiphase feeding program (14 phases) would be equally effective regardless of bird gender. A total of 480 day-old Cobb chicks were used, with an average weight of 44.74 ± 0.16 g (females) and 44.71 ± 0.11 g (males). The birds were distributed in a completely randomized 2 × 2 factorial design. Each treatment consisted of six replicates with 20 animals per experimental unit. Results were analyzed separately in two periods (1–21 and 22–42 days) as determined by slaughter date, as well as for the entire growth period (1–42 days). The multiphase program led to improvements in final body weight and average daily weight gain, in addition to an increase in breast yield.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300210
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/0103-9016-2014-0207
Formato: | text/html
Fonte: | Scientia Agricola  v.72 n.3 2015
Fonte: | info:eu-repo/semantics/openAccess