| Texto completo | |
| Autor(es): |
Sgavioli, S.
[1]
;
Filardi, R. da S.
[1]
;
Praes, M. F. F. M.
[1]
;
Domingues, C. H. de F.
[1]
;
Andrade, P. de C.
[1]
;
Pileggi, J.
[1]
;
Boleli, I. C.
[1]
;
Junqueira, O. M.
[1]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista, Jaboticabal, SP - Brazil
Número total de Afiliações: 1
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Brazilian Journal of Poultry Science; v. 15, n. 3, p. 239-245, JUL-SEP 2013. |
| Citações Web of Science: | 3 |
| Resumo | |
An experiment was conducted to evaluate the biometrics of organs (ovary, oviduct, liver, proventriculus and gizzard) of laying hens submitted to different forced-molting methods of molt and maintained at three different temperature. Organs were evaluated after molting and resting period. Six hundred birds were distributed according to a completely randomized experimental design in a 5x3 factorial arrangement (forced-molting methods x environmental temperatures) into 15 treatments with 5 replicates of 8 birds each. The molting methods applied were the dietary inclusion of 90%, 70%, 50% of alfalfa, 2,800 ppm zinc oxide, or total feed restriction. Birds were kept at +/- 20 degrees C, +/- 27 degrees C, or +/- 35 degrees C. Data were submitted to analysis of variance and means were compared by orthogonal and polynomial contrasts. The traditional forced-molting method (feed fasting) resulted in adequate performance. However, as the aim of the present study was to find an alternative method to feed fasting, the highest dietary alfafa inclusion level (90%) was shown to be efficient compared with other methods, particularly when hens were kept at high temperature. Therefore, this alternative forced-molting may be applied, especially when bird welfare is taken into consideration. (AU) | |
| Processo FAPESP: | 10/01923-7 - Efeito da injeção de ácido ascórbico e estresse calórico na incubação sobre o desempenho e características fisiológicas e comportamentais de frangos de corte criados sob diferentes temperaturas |
| Beneficiário: | Sarah Sgavioli |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 07/56447-2 - Desempenho de poedeiras comerciais submetidas a diferentes métodos de muda forçada e temperaturas visando o bem-estar animal |
| Beneficiário: | Otto Mack Junqueira |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |