Effects of Separate Sex Feeding System and Nutrient Content of Female Feed in The Early Hatching Season on Reproductive Performance of Broiler Breeders

Authors : Ramazan Yetişir

Pages : 101-114

View : 6 | Download : 26

Publication Date : 1994-12-15

Article Type : Research Paper

Abstract :This research was conducted in a breeder house with 12 pens each including 190 females and 21 males of Ross 1 parents at the 20th weeks of age. Two feeding systems for males (male-famele separate, together) and two feeding regimes for females (D1 feed containing 2770 kcal/kg of ME, 164 g/ kg of CP and 14.8 g/kg of linoleic acid for 21-57 weeks; D2 feed containing 2768 kcal/kg of ME, 172 g/kg of CP and 16.1 g/kg of linoleic acid for 21-33 weeks, and D1 feed for 34-57 weeks) were experimented by a 2 x 2 factorial design in 3 blocks. Females fed at the begining with D2 feed gained, non significantly, more live weight at 23 and 28th weeks of age than the fameles fed with D1 feed. Separate sex feeding system effected on the restricting of male body weight. At various weeks of age, they were found as 500-700 g less than con- ventionally fed ones. Fertility was effected by separete male feeding system quite significanly (P < 0.05) Egg weight of females fed with D2 feed at the begining were increased significantly (P < 0.05) than females fed with D1 feed up to 30th weeks of age. Both changing female feed nutrient specifications and the separete male feeding system were not significantly affected on liveability and productive performances. Although, fertility not effected significantly by fed with D2 feed at the begining of hatching season, sepаrate sex feeding system improved quite significantly (P < 0.01) after 40th weeks of age the effect had been more pronounced. Both changing female nutrient specification and separate male feeding improved the hatchability, significantly (P < 0.05) .
Keywords : ERKEK-DİŞİ, KULUÇKA PERYODU, BROYLER