RESULTS OF FEED CONVERSION, DAILY GAIN AVERAGE THICKNESS OF THE BACK AND SIDE BACON AND PERCENT OF MEAT IN PERFORMANCE TEST OF BOARS LANDRACE RACE (PHENOTYPIC PARAMETERS)

To achieve a larger and more profitable production, breeding goal in swine production has to be focused on the repair of all economically important traits. It is important that in addition to good nutrition, care and keeping conditions, use of the best breeding animals,which is achieved by proper selection of the organization of work, selection of animals base d on test results and assessments of breeding values with modern methods to ensure highaccuracy. Analyzed the performance characteristics of the test
boars Landrace breeds such as: Dutch, Swedish, German and Danish, originating from several farms in Vojvodina, in order to analyze the variability of different traits. Phenotypic variability properties of the aggregate genotype is high and within the quoted literature.Phenotypic variability properties of the aggregate genotype is high and within the quoted literature. Identified a statistically significant difference in the thickness of the side of bacon and meat percentage (p<0.05) and Duncan test were statistically significant differences in the thickness of back fat between Danish Landrace and other (Dutch, Swedish and German 8,60:14,37, 13.22 and 13.18 mm, p <0.05), then the thickness of the side fat between the Dutch and Danish (14,78:10,60, p <0.05) and the percentage of meat between the Danish and other Landrace (Dutch, Swedish and German 64,29:58,27, 59.62 and 58.79; p <0.05). Duncan test were not statistically significant differences in feed conversion and daily gain.