An important component in improving the effectiveness of the pig industry is the study of the ethological characteristics of different breeds and production groups of pigs, since knowledge of the behavior of pigs allows us to predict the biological potential of animals and increase their productivity in industrial technology. Proceeding from this, the main goal of our studies was a comparative study of the ethological characteristics of single sows of different genotypes.
To do this, we studied the behavior of sows using the timekeeping method by visual observations. The main criteria for ethological research were indicators of the time of active movement, rest, fееding and water. The total number of single sows that were used in the experiment was 120 heads. Ethological research of single sows were conducted on pig farms Mykolayiv and Kherson regions
Sows of different genotypes were kept in group machines with 8 heads. On average, one sow accounted for 1,8-1,9 m2 of the total area of the machine, the feeding front was 30 sm, which corresponds to optimal conditions of maintenance. Single sows were feed twice a day: morning and evening, dry friable feed. The parameters of the microclimate during the study period corresponded to the optimal parameters.
During the research we established that the purebred uterus of the breed Pietren and the breed combination ♀WL × ♂L are characterized by greater mobility – 43,9-47,0%, in turn, sows of the Ukrainian meat breed and the intra-breed type of Durok breed of the Ukrainian selection “Stepnoy” – a lower mobility – 35,7-37,1%, and sows of large white breed occupy an intermediate position by mobility – 38,3%. As a result, it was found that the external signs of estrus in active sows of all genotypes were observed for 4.5 days and 2.9 days for the passive, but the ability to mate in active sows is manifested for 3.4 days, and in passive – 2,5 days.
Key words: single sows, behavior, breed, mobility, genotype.
Key words: single sows, behavior sows, breed sows, mobility sows, genotype sows.