作者
A Aygün, Ramazan Yetisir
发表日期
2009
期刊
Journal of Animal and Veterinary Advances
卷号
8
期号
12
页码范围
2680-2686
出版商
Medwell Online
简介
This research was carried out to determine the effects of four forced molting programs including three non-feed withdrawal programs (BB: Barley Based, WB: Wheat Bran based and OB: Oat Based) which supplied with alfalfa meal and one feed withdrawal method (FW: control 8 days FW+ 34 days resting diet) on egg production performances of 320 brown (H and N Brown Nick) and 320 white (Hy-Line W-36) hybrid layers at 57 week of age. The experiment lasted totally 46 weeks including for 6 weeks molting period followed by a 40 weeks post molt production period. According to the results obtained, the genotype had significant (p< 0.05) effect on body weight loss, feed consumption, hen day egg production (number%), cracked egg (%) and Heterophil: Lymphocyte (H: L) ratio (p< 0.01) in molting period. Molting methods had significant (p< 0.01) effects on body weight loss, feed consumption, hen-day egg production (number%) in molting period. In the production period; BB group had lower (p< 0.05) hen-day egg production (%) than those of OB and FW groups. Feed efficiency values of WB group were better (p< 0.05) than the values of OB and FW groups. As conclusion, after examining these production criteria, it can be stated that; non feed withdrawal methods, especially OB program can be used alternative to FW program. But, other non-feed withdrawal programs also can be used successfully as molting procedure.
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