Developments in the performance of brown egg layer parental stocks for superior hybrid

Authors : Hüseyin GÖGER, Şahnur ERDOĞAN DEMİRTAŞ, Şermin YURTOĞULLARI

Pages : 546-551

Doi:10.3906/vet-1405-45

View : 18 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This study examines the effect of grandparent, parent, and hybrid brown chickens, selected from 3 generations of pure lines, on hybrid egg-laying performance. The study was conducted at the Poultry Research Station of Ankara. In the first stage, 4 grandparent lines were derived from 2 pure line base populations. Grandparent lines included 2 male lines insert ignore into journalissuearticles values(low body weight and high egg weight); and 2 female lines insert ignore into journalissuearticles values(low body weight and high egg production);. In the second stage, grandparent male and female lines were reciprocally crossed to produce 4 parent lines. In the third stage, male and female parental lines were crossed to produce 4 hybrid lines. The average age at first egg of grandparents, parents, and hybrids was 147.68, 154.46, and 157.53 days, respectively; body weight was 1662.95, 1699.19, and 1684.24 g, respectively; average number of eggs was 128.10 insert ignore into journalissuearticles values(43 weeks);, 241.84 insert ignore into journalissuearticles values(64 weeks);, and 303.89 insert ignore into journalissuearticles values(72 weeks);, respectively; and egg weight was 57.46 insert ignore into journalissuearticles values(43 weeks);, 58.28 insert ignore into journalissuearticles values(64 weeks);, and 68.89 g insert ignore into journalissuearticles values(72 weeks);, respectively. As a result, this study produced 4 parent lines with good combining ability for hybrids.
Keywords : Laying hen, female line, male line, hybrid material, genetic correlations