EFFECT OF CROSSING CALIFORNIA WITH GABALI RABBITS ON LITTER WEIGHT, LITTER SIZE AND MILK PRODUCTION.
Meky, M., Altahawy, W., Younis, H., Ragab, M., El Speiy, M. (2023). EFFECT OF CROSSING CALIFORNIA WITH GABALI RABBITS ON LITTER WEIGHT, LITTER SIZE AND MILK PRODUCTION.. EKB Journal Management System, 22(2), 224-237. doi: 10.21608/jaesj.2023.207824.1085
Mohamed Ahmed Meky; Waleed Altahawy; Hasan Hasan Younis; Mohamed Ragab; Mohamed ElSayed El Speiy. "EFFECT OF CROSSING CALIFORNIA WITH GABALI RABBITS ON LITTER WEIGHT, LITTER SIZE AND MILK PRODUCTION.". EKB Journal Management System, 22, 2, 2023, 224-237. doi: 10.21608/jaesj.2023.207824.1085
Meky, M., Altahawy, W., Younis, H., Ragab, M., El Speiy, M. (2023). 'EFFECT OF CROSSING CALIFORNIA WITH GABALI RABBITS ON LITTER WEIGHT, LITTER SIZE AND MILK PRODUCTION.', EKB Journal Management System, 22(2), pp. 224-237. doi: 10.21608/jaesj.2023.207824.1085
Meky, M., Altahawy, W., Younis, H., Ragab, M., El Speiy, M. EFFECT OF CROSSING CALIFORNIA WITH GABALI RABBITS ON LITTER WEIGHT, LITTER SIZE AND MILK PRODUCTION.. EKB Journal Management System, 2023; 22(2): 224-237. doi: 10.21608/jaesj.2023.207824.1085

EFFECT OF CROSSING CALIFORNIA WITH GABALI RABBITS ON LITTER WEIGHT, LITTER SIZE AND MILK PRODUCTION.

Journal of Agricultural and Environmental Sciences
Volume 22, Issue 2, August 2023, Page 224-237  XML PDF (465.35 K)
Document Type: Full research articles
DOI: 10.21608/jaesj.2023.207824.1085
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Authors
Mohamed Ahmed Meky email 1; Waleed Altahawy2; Hasan Hasan Younis3; Mohamed Ragab3; Mohamed ElSayed El Speiy4
1Department of animal and poultry production.Faculty of agriculture. Damanhour university
2Professor of Poultry, Department of Animal, Poultry, and Fish Sciences, Damanhour university
3أستاذ تربية الدواجن، كلية الزراعة، جامعة كفر الشيخ
4رئيس بحوث فسيولوجي الدواجن، معهد بحوث الإنتاج الحيواني، مركز البحوث الزراعية
Abstract
The aim of this search was to study changes in litter weight (LW), litter size (LS), and milk production (MP) by crossing between the Sinai- Gabali (GAB) and California(CAL).Data collected from a total number of 80 does and 20 bucks were divided into four groups(GAB × GAB), (CAL× CAL), (CAL × GAB), and (GAB × CAL). The result showed a significant improving in LW at the cross (CAL × GAB) 23%, 44%, 65%, 67%, 37%, and 32% at birth, 7, 14, 21, 28, and 35 days of age respectively. Mating type affected significantly (P ≤ 0.01) in LS at birth, 7, 14, 21, 28, and 35 days, where the Genotype (CAL × GAB ) and (CAL) were superior to (GAB) and (GAB × CAL) at different age. On the other side, there were affected significantly (P ≤ 0.01) in MP at 7, 14, 21, 28, and 35 days of grown period. The cross (CAL × GAB )was the highest milk production at most periods, followed by CAL, GAB and GAB × CAL, respectively. The direct heterosis was significantly positive for body weights at 8, 9, 10, 11, and 12 weeks but it was negative at 7 weeks. The direct heterosis was significantly positive for milk production at 7, 14, 21, 28, 35 days, Its highest at weaning 35 days.

In conclusion crossing between CAL and GAB improved litter weight, litter size, and milk production provided when male California is used.
Keywords
Crossbreeding; Heterosis; Litter size; Litter weight; Milk production
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