Original scientific paper
DEGRADABILITY OF DRY MATTER AND OF CRUDE PROTEIN IN FEEDSTUFFS AND IN RATIONS FOR COWS BY IN SACCO METHOD
Marija Rajčevič
; Poslovni sistem Mercator,d.d. Ljubljana, Sektor za razvoj, Ljubljana, Slovenija
Jasna M.A. Stekar
; Biotehniška fakulteta Ljubljana, Ljubljana, Slovenija
Abstract
The degradability of dry matter and crude protein in two summer feeding rations for cows was studied. The degradability of two feeding mixtures (K1 and K2) which were fed within the first and the second ration, respectively, and of two types of oil seed meal which were included in K1 and in K2 were also studied. The basic ration was the same in both cases: pasture 40 kg, 4.5 kg hay and 4.2 kg mixture. After 48 hours, the degradability of dry matter (DDM) and crude protein (DCP) and effective protein degradability (EPD) for the ration with K1 was 86,15%, 89,41% and 65,71% and 84,50%, 86,99% and 65,14%, respectively, for the ration with K2; 92,30%, 80,52% and 50,94% for K1 , 87 ,25%, 62.81% and 44.66%, respectively, for K2; 97,90%, 100,00% and 74.92% for soybean meal, and 71.09%, 73.42%, 43.38% for rape seed meal. The differences in DDM, DCP and EPD between oil seed meals and K1 and K2 were statistically highly significant.
Keywords
Hrčak ID:
164868
URI
Publication date:
27.4.1994.
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