Fertility duration of commercial laying hen inseminated with native chicken semen

Duration of fertility is one of the most influential factors to define the accurate frequency of artificial insemination to produce crossbred native chicken. This research conducted to determine the fertility duration of Commercial Laying Hen which inseminated using Indonesian Native Chicken Semen. Semen was collected from three rooster, 12-month-old, of native chicken, pooled and evaluated before dilution using physiological saline 0.85 NaCl solution. Eight laying hens were inseminated at dose 75 x 10⁶ per 0.1 mL for each, followed with eggs collection from 2^nd day until 16^th day after insemination then incubated for 21 days. The result showed that eggs fertility remained high for the first week and dropped during the second week after insemination. The average duration of fertility in laying hens inseminated was 6.5 days and the average percentage of egg fertility was 49.1 ± 18.9.