Abstract
The aim of this study was to assess the effect of exclusion of roughage from the ration of early weaned lambs. The experiment was carried out with 30 lambs from the Blackhead Pleven sheep breed weaning at 19.6 days of age with an weight of 9.3 kg and divided in two groups.The lambs deprived of roughage intake by 26.8% more wheat grain, which is a prerequisite for a smaller expense of protein 4.6% and higher energy expenditure by 7.3% per kg gain. Average daily gain of lambs deprived of roughage was 2.9% less than lambs who received alfalfa hay (P>0.05). Lambs deprived of roughage have a higher carcas syield (P<0.05) and they accumulate by 9.2% more separable internal fat, which influenced the higher fatness, compared with lambs who received alfalfa hay. Insignificance was detected in the chemical composition of meat and weight of internal organs between the two groups of lambs.
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