TY  - JOUR
T1  - Researches on the Responses of Different Hybrid Layers with Respect to Egg Production Performances to Forced Molting Programs with and Without Feed Withdrawal
AU - Aygun, Ali AU - Yetisir, Ramazan 
JO  - Journal of Animal and Veterinary Advances
VL  - 8
IS  - 12
SP  - 2680
EP  - 2686
PY  - 2009
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2009.2680.2686
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2009.2680.2686
KW  - Forced molting
KW  -non-feed withdrawal
KW  -egg production
KW  -heterophil:lymphocyte ratio
KW  -alfalfa meal
KW  -hybrid layer
AB  - 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.
ER  -