BIOMETRIC STUDY OF COMMERCIAL ALAYING HENS SUBMITTED TO THE PROGRAMS OF FORCED MOLTING

Authors

  • Vanessa Sobue Franzo Universidade Federal do Tocantins
  • Silvana Martinez Baraldi Artoni Universidade Estadual Paulista
  • Valcinir Aloísio Scalla Vulcani Universidade Estadual Paulista
  • Lizandra Amoroso Universidade Estadual Paulista
  • Daniela Oliveira Universidade Federal Rural de Pernambuco

DOI:

https://doi.org/10.5216/cab.v9i4.1127

Keywords:

intestino, biometria, muda forçada, nutrição, poedeiras.

Abstract

The forced molting in commercial laying hens had being utilized for get better the performance of birds for one more cycle of production of eggs. The experiment was aimed at evaluating the intestinal biometric parameters in laying hens submitted to the different forced molting program. Third two Hisex Brown laying hen with 58 weeks of age were  randomly subdivided into four programs (P1- California program; P2- diet of low-calcium; T3- diet of high-zinc and P4- diet of low-sodium) in two replications constituted of four birds each. The biometric parameters occurred at 28th and 140nd days and for this, four birds were sacrificed of each program in the period cited. The bird corporal weight and the relative weight of the intestine (duodenum, jejunum, ileum, cecum and rectum) were obtained on electronic precision scales and the lengths were measured. The data were submitted to the variance analysis and in case of significant difference; the averages were compared by the Tukey´s test. It was observed the commercial laying P1 and P3 the smallest mean body and relative weights (no significant) and lengths in relation to the chickens P2 and P4 and to the 140th days the corporal weight, relative weight and length of the intestine of chickens were larger. Concluded that the different programs of forced molting presented similar results and they can be used for commercial laying hens in second production cycle.

KEY WORDS: Digestory system, nutricional manage, physiology, postmolt.

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Author Biographies

Vanessa Sobue Franzo, Universidade Federal do Tocantins

Professora adjunta do departamento de morfologia animal. Docente da disciplina de anatomia animal. Doutora em patologia animal, Unesp, FCAV, campus Jaboticabal.

Silvana Martinez Baraldi Artoni, Universidade Estadual Paulista

Livre docente do Departamento Morfologia e Fisiologia Animal, Doutora em ciências biológicas. Docente da disciplina de anatomia animal.

Valcinir Aloísio Scalla Vulcani, Universidade Estadual Paulista

Doutor em cirurgia veterinária pela Unesp, FCAV, campus Jaboticabal.

Lizandra Amoroso, Universidade Estadual Paulista

Departamento de Morfologia e Fisiologia Animal, Mestre em produção animal. Docente da UNIFEOB, campus Barretos.

Daniela Oliveira, Universidade Federal Rural de Pernambuco

Professora adjunta I do Departamento de Anatomia, Doutora em cirurgia veterinária, Unesp, FCAV, campus Jaboticabal.

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Published

2008-12-21

How to Cite

FRANZO, V. S.; ARTONI, S. M. B.; VULCANI, V. A. S.; AMOROSO, L.; OLIVEIRA, D. BIOMETRIC STUDY OF COMMERCIAL ALAYING HENS SUBMITTED TO THE PROGRAMS OF FORCED MOLTING. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 9, n. 4, p. 874–882, 2008. DOI: 10.5216/cab.v9i4.1127. Disponível em: https://revistas.ufg.br/vet/article/view/1127. Acesso em: 23 nov. 2024.

Issue

Vol. 9 No. 4 (2008)

Section

Animal Production

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