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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Morphometry of the oviduct of the brown egg layer hens submitted different methods of molt induction

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Author(s):
Araújo, Cristiane Soares da Silva [1] ; Artoni, Silvana Martinez Baraldi ; Araújo, Lúcio Francelino ; Junqueira, Otto Mack ; Barbosa, Luis Carlos Garibaldi Simon ; Lima, César Gonçalves de
Total Authors: 6
Affiliation:
[1] Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Faculdade de Ciências Agrárias e Veterinárias. - Brasil
Total Affiliations: 6
Document type: Journal article
Source: Ciência Rural; v. 37, n. 1, p. 241-246, 2007.
Field of knowledge: Agronomical Sciences - Animal Husbandry
Abstract

This experiment was aimed at evaluating the performance, oviduct morphometric, hormone concentration and bone density in laying hens submitted of the different methods of molt induction. Two hundred-eight laying hens, 58 weeks of age, were randomly divided into four treatments groups (california method, diet of high-zinc, diet of low-calcium and diet of low-sodium) and four replicates. The experiment evaluated biometrics characteristics on day 1, 28 of the experiment and in three periods postmolt: body weight, ovary percentage, oviduct percentage, number of folds of the magnum and isthmus, and length of the different parts of oviduct. In the postmolt period, the morphometric analysis of the birds were not affected by any of the experimental treatments. (AU)