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Efeitos do horário de postura de matrizes pesadas sobre o rendimento de incubação Arq. Bras. Med. Vet. Zootec.
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..
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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler breeders; Embryo development; Incubation; Time of laying.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400045
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