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| Natura: | Artículo científico |
| Lingua: | en |
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Fundação APINCO de Ciência e Tecnologia Avícolas
2013
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=179729387011 |
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Sommario:
- Dietary Fiber Inclusion as an Alternative to Feed Fasting to Induce Molting in Commercial Layers S Sgavioli R da S Filardi M F F M Praes C H de F Domingues J Pileggi P de C Andrade I C Boleli O M Junqueira Agrociencias mor Alfalfa phometrics soybean husks egg production The objective of the present experiment was to compare the performance, egg quality and organ morphometrics of commercial layers submitted to alternative forced molting methods using dietary fibers. The experimental period included the phases of molting, rest, and second laying cycle (six periods of 28 days each). In the trial, 320 commercial Isa Brown layers with 72 weeks of age were distributed, according to a completely randomized experimental design into five treatments with eight replicates of eight birds each, totaling 40 experimental units. Molting was induced by feeding diets with the inclusion of alfalfa or soybean husks at 80% and 60% or feed fasting. Treatments were applied for 14 days. Performance and egg quality parameters were evaluated for the second laying cycle and organ morphometrics (liver, gizzard, proventriculus, reproductive apparatus) in two different slaughter dates. The obtained data were submitted to analysis of variance using the General Linear Model (GLM) procedure of SAS statistical package (SAS Institute, 2002). Alternative molting methods promoted similar performance and egg quality results after molting were similar to those obtained by the conventional fasting method. Feeding fiber produced the expected effects in terms of organ weight regression and recovery and may be used to induce molting in commercial layers. 2013 artículo científico 1516-635X https://www.redalyc.org/articulo.oa?id=179729387011 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.4 Vol.15