Fenotipska varijabilnost i povezanost telesnih mera različitih genotipova kasača

The research was conducted on 44 mares (average age 11,09 years) and 12 stallions (average age 14,50 years) which ancestry was recorded (pedigreed animal) with different genotype of Trotter horses, used for breeding. Body measures of horses were estimated in the year 2010. For both horse genders, the results of average body measures were in general standards of this breed: height at withers, length of body, chest circumference, chest depth, width of chest (above the withers), rump height and width, circumference of cannon bone. Our research results indicate that it is necessary to pay greater attention to quality of breeding horses, choosing a horse, regarding depending on their use also breeding objective, and therefore implementations with more rigorous application of appropriate selection methods in equine breeding.Istraživanjima je obuhvaćeno 44 priplodne kobile (prosečne starosti 11,09 godina) i 12 pastuva (prosečne starosti 14,50 godina), sa poznatim poreklom (pedigreom) različitih genotipova kasača, koja se aktivno koriste u priplodu. Utvrđivanja važnijih eksterijernih svojstava sprovedena su u 2010. godini. Utvrđene prosečne eksterijerne (telesne) mere grla oba pola: visina grebena, dužina trupa - tela, obim grudi, dubina grudi, širina grudi (iznad grebena), visina sapi, širina sapi i obim cevanice su bile u okviru standarda ove rase konja. Rezultati sprovedenih istraživanja ukazuju na to da je potrebno posvetiti veću pažnju kvalitetu priplodnih grla, odnosno odabiru grla u zavisnosti od njihove upotrebe, zatim pravcu odgajivanja, a samim tim uvođenje i strožiju primenu odgovarajućih selekcijskih metoda pri gajenju kopitara