Oestrus detection by fuzzy logic model using trait activity in cows [Ineklerde bulani{dotless}k manti{dotless}k modeli ile hareketlilik ölçüsünden yararlani{dotless}larak ki{dotless}zgi{dotless}nli{dotless}ǧi{dotless}n tespiti]

The aim of this study was the accurately oestrus detection of cows by fuzzy logic model,where the traits activity,movement behavior of cows and period since last oestrus was used simultaneously. the animal material of the study formed the 117 holstein cows in diferent ages grown up in private farm. the trait activity was measured by pedometer,which were attached at the left foreleg of each cow. the trait period since last oestrus include information about previous inseminations and oestrus cases. it was also used the certain input named cow's type which determined the cow's movement behavior. as the result of the study,the rate of the detection of cows in oestrus by using fuzzy logic system was considerable quite high as 98.0% was determined.