Evaluation of Egg Production, Fertility, Hatchability, Embryonic Mortality and Chick Quality of Different Chickens

Abstract

The present study was evaluated the egg production performance, fertility, hatchability, embryonic mortality and chick quality from Cosmopolitan (C), Improved Horro (H), ♂Improved Horro*Cosmopolitan ♀ (HC), ♂ Cosmopolitan*Improved Horro ♀ (CH), Indigenous (L), and Koekoek (KK) genotypes. A Completely randomized design was used in the study. A total of 1800 eggs and 300 eggs of each genotype were used for the hatchability and fertility trials. A total of 360 chicks and 60 chicks of each genotype were used for chick quality study. A total of 720 genotypes (5female: 1 male) and 120 from each genotype were used for egg production. Age at first egg and age at peak varied across genotypes. KK had the highest egg production followed by CH, H, CH and C but L had the lowest egg production. KK had the highest weight and feed intake followed by HC, HC, and C, whereas had the lowest followed by H. Feed conversion ratio varied among genotypes. H had the highest egg fertility followed by CH. Conversely, C, HC, L and KK chicken genotypes were comparable and had the least egg fertility. H and CH showed the highest hatchability from set egg, whereas L showed the lowest hatchability from set egg followed by the intermediate KK, HC and C. CH indicated the highest hatchability from fertile egg set, while L confirmed that the lowest hatchability from fertile egg set followed by the intermediate KK, HC and C. The overall embryonic mortality of L was the highest, but CH had significantly lowest overall embryonic mortality followed by KK, HC and C. Chicks hatched from KK had the highest chick weight and chick length, but chicks hatched from L had the least chick weight and chick length. Eggs of L had the highest percentage egg weight yield followed by KK, whereas the CH, C, HC and H had intermediate yield percent during incubation. Conclusively: The genotype differences of hens substantially influenced egg production performance, fertility, embryonic mortality, hatchability and chick quality.