Inbreeding in Holstein Fresian Cattle Population in Turkey

Inbreeding is generally associated with a reduction in production and profitability. Therefore, it essential that be monitored kept under control. The purpose of this study was to calculate the inbreeding coefficient for Holstein Friesian cattle registered database Cattle Breeders' Association Turkey (TDSYMB). TDSYMB comprised two elements: (i) pre-herdbook (ii) herdbook, including information about, example, ownership, breeding, some traits. In study, databases were combined. consisted 6,935,005 individuals born 1962-2012. coefficients calculated using Wright's method, ranging from zero 43.75% mean 0.0012 standard deviation (SD) 0.01273 all animals, considering inbred 0.0106 0.03272. average animals population 2012 found 0.0022. population, proportion number increased over years, while decreased. This could due fact gene flow other countries quite high, pedigree taken into account importing sperm live (both heifers bulls).