Determination of metabolizable protein in agricultural waste In situ in fistulated lambs.

摘要

Metabolizable protein from potato, tomato, melon and strawberry plant shrubs was determined In situ in fistulated castrated Ghezel lambs. Plant shrubs were grinded and 5g material was poured into nylon bags in fistulated sheep. Digestibility measurements were soluble and insoluble protein, and constant decomposition rate, determined at 0, 2, 4, 6, 8, 12, 16, 24, 36, 48, 72 and 96 h. Crude soluble protein in potato shrub waste degraded ~20, tomato ~17, melon ~15, and strawberry ~11%, and fermentableprotein ~34, ~21, ~38 and ~24%, respectively. Metabolizable protein reached about 66 79, 67 and 44 gr/kg in the same plant shrubs. Significant differences were observed in crude protein digestibility at different hours of incubation. We find that tomatoplant shrub had the highest metabolizable protein and strawberry the least. Results suggest that these plant shrubs could be used as a supplement feed for ruminants.