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EFFECT OF FEEDING UREA TREATED AND UNTREATED BARLEY STRAW WITH TWO LEVELS OF RUMEN UN DEGRADABLE NITROGEN ON SOME CARCASS CHARACTERISTIC OF KARDI LAMBS | ||
| AL-TAQANI | ||
| Article 1, Volume 22, Issue 1, 2009, Pages 0-0 | ||
| Abstract | ||
| The effect of using urea treated and untreated barley straw with two levels of rumen un degradable nitrogen (UDN) upon daily feed intake, live weight gain, feed conversion ratio and some carcass characteristics of karadi lambs were studied. Twenty individual penned karadi lambs (mean weight 24.5+1.2 kg),aged 4-6 months were used. They were divided into four equal groups and fed one of the four experimental diets for 8 weeks. The results indicate a significant increase (P<0.01) in total daily intake of all nutrients by the lambs fed urea treated straw as compared with those fed untreated straw, when expressed in g/day or g/kg W 0.75 .The results also indicate a significant increase (P<0.01) in live weight gain and feed conversion ratio for lambs fed urea treated straw compared with those fed untreated. The results show a highly significant increase (P<0.01) in blood urea nitrogen of lambs fed urea treated straw as compared with those fed untreated. While , Lambs fed urea treated straw had significantly (P<0.01) higher dissected lean as compared with those fed untreated straw . | ||
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