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GOHR, L., ABDEL-GALIL, M., MAHMOUD, T. (1997). CERTAIN FACTORS AFFECTING FERTILITY PERCENT IN SOME LOCAL BREEDS OF CHICKENS. Egyptian Journal of Agricultural Research, 75(3), 789-797. doi: 10.21608/ejar.1997.410409
LAILA M. A. GOHR; MOHAMED A. ABDEL-GALIL; TAHA H. MAHMOUD. "CERTAIN FACTORS AFFECTING FERTILITY PERCENT IN SOME LOCAL BREEDS OF CHICKENS". Egyptian Journal of Agricultural Research, 75, 3, 1997, 789-797. doi: 10.21608/ejar.1997.410409
GOHR, L., ABDEL-GALIL, M., MAHMOUD, T. (1997). 'CERTAIN FACTORS AFFECTING FERTILITY PERCENT IN SOME LOCAL BREEDS OF CHICKENS', Egyptian Journal of Agricultural Research, 75(3), pp. 789-797. doi: 10.21608/ejar.1997.410409
GOHR, L., ABDEL-GALIL, M., MAHMOUD, T. CERTAIN FACTORS AFFECTING FERTILITY PERCENT IN SOME LOCAL BREEDS OF CHICKENS. Egyptian Journal of Agricultural Research, 1997; 75(3): 789-797. doi: 10.21608/ejar.1997.410409

CERTAIN FACTORS AFFECTING FERTILITY PERCENT IN SOME LOCAL BREEDS OF CHICKENS

Article 23, Volume 75, Issue 3, September 1997, Page 789-797  XML PDF (2.1 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1997.410409
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Authors
LAILA M. A. GOHR; MOHAMED A. ABDEL-GALIL; TAHA H. MAHMOUD
Animal Production Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt.
Abstract
This study was carried out to study some factors affecting egg fertility in some local breeds of chickens (Gimmizah, Bandara and El‌Salam). Three sex ratios for each breed were used (1 male for 10, 15 and 20 females). Hatches of January and February represented cold sea‌son, and hatches of April and May represented hot season Cocks used in this study were examined for semen quality (motility and live sperm percentage). The results obtained were as follows : 1.There was significant effect (P<0.01) of breeds, sex ratio and month on fertility percent. 2.The highest fertility percentage was recorded for EI-Salam breed (94.22%), followed by Gimmizah (92.12%) and Bandara (91.26%). 3.Sex ratio was found to have a significant effect (P<0.01) on egg fer‌tility, where 1 male for 10 females was the best sex ratio in this study, followed by 1 male for 15 and 20 females. 4.Significant differences (P<0.01) were found between months, where fertility percent for hatches of January was the highest (95.1 7%), followed by hatches of February, April and May (93.47, 90.95 and 90.22%, respectively). S. EI-Salam cocks were the best in both semen motility and live sperm percent (6.33 and 92.33%), followed by Gimmizah (5.66 and 91.56%) and Bandara (5.66 and 90.00%). This in term agreed in the fertility percent obtained for the three breeds in the same order. G. The interaction between sex ratio and months was significant (P<0.05), while, it was not significant between either breed by sex ratio or breed by month. 7. Positive phenotypic correlation was found between motility and live spermatozoa percentage, and between both of these two characters and fertility.
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