Karakteristike dugovečnosti kao funkcionalne osobine mlečnih krava

It is of economic interest for breeders that dairy cattle should be long enough in production, without compromising their health or reproductive performance. In modern dairy cattle breeding programs, in addition to traits of which dairy production directly depends on, emphasis is also placed on those traits that contribute to improving production efficiency, primarily by reducing production cost. These traits are known as functional traits, among which is longevity of cows one of the most important. Longevity indicates the time period during which the cow remains in the herd before being culled. The aim of this paper is to present the most important characteristics of longevity of cows as a very important functional traits of dairy cattle.Da bi jedno grlo u proizvodnji mleka bilo od ekonomskog interesa za odgajivača ono mora dovoljno dugo da bude u proizvodnji bez narušavanja zdravstvenih ili reproduktivnih sposobnosti. U modernim odgajivačkim programima, pored osobina od kojih direktno zavisi proizvodnja mleka, akcenat se stavlja i na one osobine koje doprinose unapređenju efikasnosti proizvodnje, pre svega, smanjivanjem troškova. U te osobine ubrajaju se i funkcionalne osobine, među kojima je jedna od najznačajnijih dugovečnost krava koja ukazuje na vremenski period tokom koga grlo ostaje u zapatu pre nego što se izluči. Cilj ovog rada je da se prikažu najznačajnije karakteristike dugovečnosti kao izuzetno važne funkcionalne osobine krava