Data/hora: 25/06/2024 17:59:54

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 25/11/2019
Data da última atualização: | 25/11/2019
Autoria: | ALENCAR, A. V. O.; NASCIMENTO, G. A. J. do; FREITAS, E. R.; SOUZA, D. H.; COSTA, M. K. de O.; ROCHA, A. K. S.
Afiliação: | Amanda Virgínia Oliveira Alencar, Universidade Federal do Ceará - UFC/Departamento de Zootecnia; Germano Augusto Jerônimo do Nascimento, Universidade Federal do Ceará - UFC/Departamento de Zootecnia; Ednardo Rodrigues Freitas, Universidade Federal do Ceará - UFC/Departamento de Zootecnia; Davyd Herick Souza, Universidade Federal do Ceará - UFC/Departamento de Zootecnia; Monik Kelly de Oliveira Costa, Universidade Federal do Ceará - UFC/Departamento de Zootecnia; Amanda Karen Santos Rocha, Universidade Federal do Ceará - UFC/Departamento de Zootecnia.
Título: | Performance of lightweight replacement pullets fed rations with sunflower cake and the addition of enzymes.
Ano de publicação: | 2019
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, v. 54, e00983, 2019.
Idioma: | Português
Notas: | Título em português: Desempenho de frangas de reposição leves alimentadas com ração com torta de girassol e adição de enzimas.
Conteúdo: | The objective of this work was to evaluate the inclusion of sunflower cake (SC) and the addition of enzymes in the ration of lightweight replacement pullets in the growth phase, as well as their effects on the variables feed consumption and conversion, productive performance, sexual maturity, egg quality at the beginning of the laying phase, and economic viability. Five hundred and forty pullets of the Hy-Line W-36 light line were used. The experimental design was completely randomized, in a 2×2+1 factorial arrangement, with two inclusion levels of SC (10 and 20%), with or without the addition of enzymes, and a control treatment. At the end of the growth phase (7 to 17 weeks age), 360 birds were transferred to the laying shed until their thirty-fifth week of age. There was no interaction between SC levels and enzymes, but an isolated effect of rations and enzymes was observed on feed consumption and conversion. There was a decrease in specific egg density and an interaction between the factors for this variable, but without affecting productive performance. The inclusion of up to 20% SC in the rations does not affect bird performance in both evaluated phases; however the use of 20% SC with enzymes is more economically viable.
Palavras-Chave: | Alternative feedstuff; Enzima exógena; Exogenous enzymes; Qualidade dos ovos.
Thesagro: | Alimento Alternativo; Helianthus Annuus.
Thesaurus Nal: | Egg quality.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/205478/1/Performance-of-lightweight-replacement.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (64290-1) - UPE - AP - DD -  -  -  - DIS