Analyses of feeding behavior of dairy cows

Abstract

Feeding behavior of dairy cows in the captive, industrials systems of rearing is different than natural, because when animals feel hunger, behavior realization of the basic instincts is deprived. In addition, depending from the way of raising, differences exist in behavior of dairy cows during the feeding. Aim of this study was to explore this difference with statistical approach. In the experiment, feeding behavior of 35 dairy cows was observed, black - white breed in the Holstein type. Dairy cows were divided into two groups, group of 15 dairy cows raised in the farm with tied system and 20 dairy cows raised in the farm with free system. With sequentional analyses and with statistical data processing we determinate numerical values of high statistical significant interactions between activities inside each farm, and on the contrary we do not determinate statistical significant interaction in feeding behavior of dairy cows between farms.

Hranidbeno ponašanje krava u laktaciji u zatvorenim, intenzivnim sistemima je drugačije od prirodnog, zbog uskraćenosti realizacije osnovnih nagona pri osećaju gladi. Takođe, u zavisnosti od načina gajenja, postoje razlike u ponašanju krava u laktaciji tokom ishrane. Cilj istraživanja hranidbenog ponašanja krava u laktaciji je bio da se metodom sekvencione analize utvrde razlike. U ogledu su korišćene krave u laktaciji, crno bele rase u tipu Holštajna, 15 gajenih u vezanom i 20 gajenih na farmi sa slobodnim sistemom gajenja. Sekvencionom analizom i statističkom obradom podataka, odredili smo brojne visoko statistički signifikantne interakcije aktivnosti u hranidbenom ponašanju krava u laktaciji u okviru svake farme, dok između farmi nije dobijen statistički signifikantan broj interakcija.