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Effect of egg storage length on hatchability and weight loss in incubation of egg and meat type Japanese quails Rev. Bras. Ciênc. Avic.
Romao,JM; Moraes,TGV; Teixeira,RSC; Cardoso,WM; Buxade,CC.
The quail raising in Brazil has increased through the last years and the incubation procedures are important to maintenance and improvement of quail egg production. To obtain a sufficient number of eggs to fill an incubator, eggs are usually accumulated in storage over a period from 1 day up to 3 weeks before incubation. The objective of this research was to verify the effect of egg storage on hatchability and egg weight loss for two lineages of Japanese quails. Sixty four Japanese quails were divided in two groups: G1 (n=32) for meat production and G2 (n=32) for egg production. They were used for serial egg collections that were performed every day, during 15 consecutively days, totaling 600 eggs. After collection they were placed in refrigerated room...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg weight loss; Incubation; Japanese quail; Storage.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300001
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Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) Rev. Bras. Ciênc. Avic.
Teixeira,RSC; Cardoso,WM; Nogueira,GC; Câmara,SR; Romao,JM; Siqueira,AA; Sampaio,FAC; Moraes,TGV; Campello,CC; Buxade,CC.
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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forced molting; Ovary; Oviduct; Quail; Zinc oxide.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200002
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