Спермопродуктивність кнурів данської та французької селекції

Abstract

В роботі вивчалась спермопродуктивнінсть кнурів порід йоркшир, ландрас та дюрок данськоії селекції і породи п’єтрен та синтетичної лінії макстер французької селекції. Встановлено, що спермопродуктивність кнурів данської та французької селекції в умовах України є досить високою і залежить від генотипу тварин. В умовах промислового комплексу у них спостерігалась різна взаємообумовленість показників спермопродуктивності, що вивчались, залежно від генотипу. The paper examines spermproductivity of Yorkshire, Landrace and Duroc boar breeds of Danish breeding and synthetic Maxter line of French breeding. It is established that Danish Yorkshire boar breeds proved to be better by ejaculate mass. Duroc boar breeds were characterized by the lowest ejaculate mass.The highest concentration of sperm cells in 1 ml of ejaculate was observed in Duroc boars that prevailed by this indicator over their analogues of French Pjetren, Danish Landrace, and boars of synthetic Maxter line of Danish Yorkshire (P>0.999). The activity of sperm cells in boars of the examined genotypes was 7.2-8.1 points. It appeared to be the highest in Danish Yorkshire. Danish Yorkshire boars appeared to be the best by the number of spermdoses per ejaculate dominating significantly (P>0.999) over other animals of the studied genotypes. Among the latter, the highest spermodoses were obtained from ejaculates of boar breeds of French Pjetren and synthetic Maxter line. The lowest number of spermodoses was obtained from ejaculates of Danish Drock and Landrace. It is established that sperm mass negatively with an average power correlates with the concentration of sperm cells in the ejaculate of boars of all genotypes. Almost all animals, except for Pjetren boars, showed no correlative relationship between ejaculate mass and activity of sperm cells, while a close positive relationship was revealed between sperm mass and spermdose number in animals of all genotypes. Thus, it is determined that spermproductivity of boars of Danish and French breeding in terms of Ukraine is quite high depending on the animal genotypes. Under conditions of the industrial complex they had different interdependence of spermproductivity indicators that were examined depending on the genotype.