EFFECT OF SOME BIOLOGICAL AND NATURAL SUPPLEMENTATION ON RUMINANT PERFORMANCE

Four groups of male lambs (seven animals/ group) were used to study the effect natural (garlic powder; Allium sativum) and biological (dry yeast; Saccharomyces cerevisiae) additives their combination in finishing diets as compared control diet on feed utilization animal performance. Animals 8 months age 35.8kg ± 0. 41 average body weight. fed a basal including concentrate mixture (CFM) at level 70% total requirement berseem hay (BH) was offered ad lib. The experimental were: 1) without additive (control), (C); 2) supplemented with 6g dry yeast (2.44x1011cfu/g)/head/day, (Y); 3) 40g garlic powder/head/day, (G), 4) 3g plus 20g (YG).  The results revealed that all treatments showed higher (P<0.05) digestibility values DM, OM, CP, CF NFE, than non-additive (C). highest observed for animals G diet; however, C group lowest values. value TDN% (73.56%) one (69.20%). However, DCP% not affected by its ranged between 11.81 12.27%. enriched (Y, YG) ADG (180, 184 186 g/d, respectively) (160g/d). Additives have no significant intake either form CFM or roughage consequently intake. All significantly enhanced, same extent, efficiency indicators one. Yeast/garlic combined addition daily profit percentage relative (42%) followed (34.0%) then alone (31%) treatments. Energy different test where, values, but When (YG) supplemented, N balance exhibited 15.2% increase above group. concentration blood immunoglobulins (IgA) IgG differed (P <0.05) among being enhanced respective additives. It could be concluded using such (6 gm/h/d) powder (40 (3gm 20 gm, lamb tended coefficients most nutrients, increasing nutritive TDN appeared gain well immune status animals.