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Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica)
Teixeira, RSC; Cardoso, WM; Nogueira, GC; Câmara, SR; Romao, JM; Siqueira, AA; Sampaio, FAC; Moraes, TGV; Campello, CC; Buxade, CC.
Afiliação
  • Teixeira, RSC; s.af
  • Cardoso, WM; s.af
  • Nogueira, GC; UECE Programa de Pós-Graduação em Ciências Veterinária.
  • Câmara, SR; s.af
  • Romao, JM; UECE Programa de Pós-Graduação em Ciências Veterinária.
  • Siqueira, AA; UECE Programa de Pós-Graduação em Ciências Veterinária.
  • Sampaio, FAC; UECE Programa de Pós-Graduação em Ciências Veterinária.
  • Moraes, TGV; UECE Programa de Pós-Graduação em Ciências Veterinária.
  • Campello, CC; UECE Laboratório de Histologia Faculdade de Veterinária.
  • Buxade, CC; Universidad Politécnica de Madrid Escuela Técnica Superior de Ingenieros Agrónomos.
Article em En | LILACS-Express | VETINDEX | ID: biblio-1491151
Biblioteca responsável: BR68.1
ABSTRACT
This study aimed at evaluating the alternative method of zinc oxide and fasting to induce molt in Japanese quails. A total number of 190 48-week-old quails was used. They were at end of laying cycle, and presented low egg production. Quails molted by zinc oxide (Z) were fed a diet containing 25,000 ppm of zinc oxide, and received water ad libitum. Quails treated by fasting (F) received no feed and a day of water restriction. The treatment period was determined by the experimental level of body weight loss (BWL). Birds were submitted to different levels of BWL in order to analyze reproductive system regression (ovary + oviduct), and livability. The following groups were established according to their BWL Control (untreated quails); F25 (25% BWL by F); F35 (35% BWL by F); Z25 (25% BWL by Z), and Z35 (35% BWL by Z). Z25, Z35, and F35 presented no significant differences in reproductive system weights after molting; however, their weights were lower than F. Z, Z, and F presented the following livability 97.5, 72.5, and 90%. Japanese quails treated by the alternative method of zinc oxide, presenting body weight loss of 25%, showed low mortality rate, and adequate regression of the reproductive organs.
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Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Rev. bras. ciênc. avic Ano de publicação: 2007 Tipo de documento: Article
Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Rev. bras. ciênc. avic Ano de publicação: 2007 Tipo de documento: Article