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| Formato: | Artículo científico |
| Lenguaje: | en |
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Fundação APINCO de Ciência e Tecnologia Avícolas
2008
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=179714001004 |
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- Influence of egg pre-storage heating period and storage length on the digestive tract of newly-hatched broiler chicks FHA Silva DE Faria KAA Torres DE Faria Filho AAD Coelho VJM Savino Agrociencias Broilers incubation morphometrics intestinal mucosa embryo development An experiment was carried out to evaluate the effect of different heating times of settable eggs of Cobb 500® broiler breeders before submitting them to different storage periods on body weight, digestive tract organ weights, and intestinal mucosa morphology of newly-hatched chicks. Settable eggs were distributed in a completely randomized experimental design with a 3 x 3 factorial arrangement: pre-storage heating periods (0, 6, 12 hours at 36.92°C) and storage periods (4, 9, 14 days at 12.06°C). Body weight and relative weights of the yolk sac, heart, liver, proventriculus+gizzard, and intestinal segments were measured in chicks hatching at 480 and 498 hours of incubation. Villi height, width and perimeter, and crypt depth (ìm) were measured in duodenal histological sections. It was concluded that pre-storage heating for six hours of eggs stored for four or nine days increases small intestine weight of newly-hatched chicks, but does not influence the morphology of the duodenal mucosa. Pre-storage heating for 12 hours negatively influences body weight and duodenal mucosa development, and therefore this practice is not recommended. Storage length does not have consistent effect on body weight and development of the gastrointestinal tract. 2008 artículo científico 1516-635X https://www.redalyc.org/articulo.oa?id=179714001004 en http://www.redalyc.org/revista.oa?id=1797 Revista Brasileira de Ciência Avícola application/pdf Fundação APINCO de Ciência e Tecnologia Avícolas Revista Brasileira de Ciência Avícola (Brasil) Num.1 Vol.10