JOURNAL OF AGRICULTURAL SCIENCES-TARIM BILIMLERI DERGISI, cilt.13, sa.3, ss.265-268, 2007 (SCI-Expanded)
In this study, males from the same age and located in same farm are exchanged beetween the houses (intra-spiking) to determine the the effects of fertility in broiler breeders. This study was carried out with a commercial flock kept in two houses with two completely seperated pens in a broiler breeder farm. While the all males in one of the pens in each house were allocated as control group, 50% of males in other pen of house 1 was exchanged with 45% of males in other pen of house 2, at 54 weeks of age. The average fertility and hatchability were significantly higher in intra-spiking group than control and the differences between groups were 3.66 % and 4.23 % respectively between 54(th) and 59(th) week of age. By the way male mortality was significantly lower in control group (P<0.05) during this period.