The influence of the factor 'genetic value of the sire' on the implementation of the genetic potential of the indicator 'milk production of maximum lactation' of the Yaroslavl breed cows

Abstract

Dairy products are the main food elements of the man. Milk is the sole food for infants and it plays an important role in feeding of the sick, convalescent, and healthy adults. The Yaroslavl Region is a leading region of the Yaroslavl cattle breed. Therefore, the aim of our research was to determine the strength and reliability of the influence of the factor 'genetic value of the sire' on productive characteristics of animals as a factor that helps to increase the productivity of animals. When we determine the strength of the influence of factors for statistical data we used the procedure of generalized linear models (General Linear Models - GLM), and evaluation components of phenotypic variation attributes were analyzed by multivariate dispersive analysis. Our research has allowed to allocate bulls with genetic value which has the improving effect. Using the recommended lines the farmers of the Yaroslavl region may increase productive characteristics of animals and the profit of the farms and improve the efficiency of breeding.

Mlečni proizvodi su glavni elementi ishrane čoveka. Mleko je jedina hrana za odojčad i igra važnu ulogu u ishranu bolesnika, rekovalescenata i zdravih odraslih osoba. Jaroslavski region je vodeći region u gajenju istoimene - jaroslavske rase goveda. Dakle, cilj našeg istraživanja bio je da se utvrdi snaga i pouzdanost uticaja faktora 'genetske vrednosti oca' na produktivne osobine životinja kao faktor koji pomaže da se poveća produktivnost krava. Da bi smo odredili snagu uticaja faktora podatke koje smo koristili, podvrgli smo u proceduri obrade putem generalnog linearnog modela (Opšti Linearni modeli - GLM). Komponente evaluacije fenotipske varijacije atributa su analizirane putem multivarijacione disperzivne analize. Naše istraživanje je omogućilo da se izdvoje bikovi sa genetskim vrednostima koje imaju efekat poboljšanja željenih svojstava populacije. Upotrebom preporučenih linija odgajivači goveda u jaroslavskoj oblasti mogu povećati proizvodne performanse životinja. Sve ovo void ka povećanju profita, a time otvara mogućnost za dalji napredak u proizvodnji.