| Registro completo |
| Provedor de dados: |
Arq. Bras. Med. Vet. Zootec.
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| País: |
Brazil
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| Título: |
Efeitos do horário de postura de matrizes pesadas sobre o rendimento de incubação
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| Autores: |
Barbosa,V.M.
Rocha,J.S.R.
Pompeu,M.A.
Fernandes,M.N.S.
Machado,A.C.
Cunha,C.E.
Cardeal,P.C.
Ruiz,L.E.A.
Lara,L.J.C.
Baião,N.C.
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| Data: |
2013-08-01
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| Ano: |
2013
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| Palavras-chave: |
Broiler breeders
Embryo development
Incubation
Time of laying
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| Resumo: |
The effects of oviposition time, which represents different positions of the follicles in a sequence of posture, were studied on egg weight, chick weight, egg weight loss during incubation, hatchability, embryo mortality and infertility . A total of 19, 820 eggs, layed on the same day, from Cobb® broiler breeders aging 46-week-old were used. The eggs were classified according to the oviposition time posture (corresponding to the time of collection) from 8:30 am, 10:30 am, 12:30 pm, 14:30 pm and 16:30 pm, which represented the folowing treatments: 1st, 2nd, 3rd, 4th and 5th collects, respectively. The experimental design was completely randomized with five treatments and 36 repetitions, and each tray of 96 eggs was considered a repetition. The normal and homogeneous data were submitted to analysis of variance and means compared by Tukey test. The non-normal and non-homogeneous averages were compared by Kruskal-Wallis test. It is concluded that the time of egg laying has influence on egg weight and chick weight, but does not affect hatchability, fertility and embryonic development.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Português
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400045
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| Editor: |
Universidade Federal de Minas Gerais, Escola de Veterinária
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| Relação: |
10.1590/S0102-09352013000400045
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| Formato: |
text/html
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| Fonte: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.65 n.4 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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