Izvorni znanstveni članak
SOME PRODUCTION AND NUTRITION PARAMETERS IN VARIOUS SYSTEMS OF COW KEEPING IN EARLY LACTATION
Zoran Popović
; D.R."Belje"PIK, pogon Poljoprivreda Kneževo,Republika Hrvatska
Sažetak
Production indicators and food consumption per product unit in two groups of 26 Holstein-Frisian dairy cows calved in January 1989 were analyzed. Investigations were carried out on a free system dairy farm, capacity a 1000 head, with a computer installed to follow' the production processes. The cows were followed from calčvng until 35- day of lactation. The trial group was kept free from the 6rh lactation day hile the control group was kept tied in a traditional shed during the trial period. The aim was to establish a possibility of introducing the cows to being milked in a free system and fed on concentrates by means of automatic feeding system and milked in the milking parlour; each animal as followed by the computer system.
It as established that the computer system enabled initiations of cows into milking in the free keeping system without negative effects on production and that the food consumption per production unit as the same as when the cows were kept tied in a traditional shed.
Ključne riječi
Hrčak ID:
162078
URI
Datum izdavanja:
30.11.1990.
Posjeta: 504 *