n a feeding experiment lasted 70 days, the nutritional supplementation effect of Dry Moringa oleifera leaves (DML) was investigated on growth performance and rumen fermentation indices on 20 local Barki male lambs aged 6 months and weighed 24.4±1.12 kg. Lambs were randomly allocated into four equal groups where they individually fed daily on a uniform diet consisted of: 3% of body weight (BW) concentrate feed mixture (CFM) plus 1.25 kg whole corn silage and chopped rice straw fed ad-libitum. The first group (R1) was fed on un-supplemented CFM (control), while diets of R2, R3 and R4 were supplemented with 100,200 and 400 mg DML/kg BW, respectively. The offered amounts of CFM + DML were bi-weekly adjusted according to body weight change. The results illustrated that; the daily DM intake reduced by 17% with R4 diet (400mg DML) than other groups. The best (P<0.05) values of final body weight, ADG and feed conversion efficiency were recorded for lambs fed R3 diet (200mg DML), while corresponding parameters of R2(100mg ML) and control showed comparable values. With increasing DML supplementation to 400mg/kg BW (R4) ADG was remarkably fallen dawn to nearly 50% than other groups. Similar trend was achieved for nutrients digestibility and dietary nitrogen utilization, where the best results were recorded with R3 and the worst with R4. Moreover, blood plasma urea, creatinine, AST and ALT had the highest (P<0.05) values with R4 than other groups, while cholesterol was decreased (P<0.05) with increasing DML supplementation level. Ruminal NH3-N concentration was (P<0.05) decreased with increasing DML level, while the highest TVFAs was recorded with R3 and the lowest with R4. In-vitro enteric methane production (mg/day) was decreased (P<0.05) with increasing DML supplementation level, however, the lowest CH4 (mg/kg DMI) was recorded with R3 diet. In-vivo ruminal microbial protein had the highest yield (P<0.05) with R3 and the lowest with R4. It is worth saying that, dry Moringa oleifera leaves is useful growth promoter for lambs when supplemented at the maximum of 200mg/kg BW or in average 5 gm/day.
he study conducted to evaluate the possibility of partially or completely replacement of clover hay (CH) with Panicum maximum (Pm) on digestibility, nitrogen balance, rumen fermentation, gas production and its effect on calves performance. The digestibility trial was conducted using three males Barki sheep fed one of the four experimental rations as follow: ration (1) was concentrate fed mixture (CFM) + 100% CH (control) ; second one (T2) was fed CFM + 75% CH + 25% Pm; third one (T3) was fed CFM 50% CH + 50% Pm and fourth one (T4) fed CFM + 100% Pm. Growth trial was carried out for 90 days using 20 calves ( 5 one each group) .Rumen fermentation and gas production trials were evaluated by 3 rams with rumen fistula .The results were showed more (P> 0.05) improvement in nutrients digestibility with T2 compared to the control and the other experimental groups . Less improvement was obtained for T4, while T3 was close to the control group. These were reflected on TDN, DCP and N balance as it was high for T2, while T4 was recorded the lowest (P> 0.05) one. No significant differences were noticed for pH values among experimental rations. T1 had the (P> 0.05) highest NH3 concentration, but it had the lowest VFA , s value as it was higher for T2 .Insignificant differences was found among experimental groups for microbial protein (MP) synthesis among the ration contained Pm . While, T1 was recorded (P > 0.05) less MP, but it had the highest gas production and short chain fatty acids (SCFA) was followed by T2, meantime T4 showed less gas production and SCFA. T2 was showed the highest DWG and the best FCR; the less one was T4, while values of T1 and T3 were close together. Also, T2 had better economic efficiency followed by T3 and T1 and the lowest one was T4.
n a feeding experiment lasted 70 days, the nutritional supplementation effect of Dry Moringa oleifera leaves (DML) was investigated on growth performance and rumen fermentation indices on 20 local Barki male lambs aged 6 months and weighed 24.4±1.12 kg. Lambs were randomly allocated into four equal groups where they individually fed daily on a uniform diet consisted of: 3% of body weight (BW) concentrate feed mixture (CFM) plus 1.25 kg whole corn silage and chopped rice straw fed ad-libitum. The first group (R1) was fed on un-supplemented CFM (control), while diets of R2, R3 and R4 were supplemented with 100,200 and 400 mg DML/kg BW, respectively. The offered amounts of CFM + DML were bi-weekly adjusted according to body weight change. The results illustrated that; the daily DM intake reduced by 17% with R4 diet (400mg DML) than other groups. The best (P<0.05) values of final body weight, ADG and feed conversion efficiency were recorded for lambs fed R3 diet (200mg DML), while corresponding parameters of R2(100mg ML) and control showed comparable values. With increasing DML supplementation to 400mg/kg BW (R4) ADG was remarkably fallen dawn to nearly 50% than other groups. Similar trend was achieved for nutrients digestibility and dietary nitrogen utilization, where the best results were recorded with R3 and the worst with R4. Moreover, blood plasma urea, creatinine, AST and ALT had the highest (P<0.05) values with R4 than other groups, while cholesterol was decreased (P<0.05) with increasing DML supplementation level. Ruminal NH3-N concentration was (P<0.05) decreased with increasing DML level, while the highest TVFAs was recorded with R3 and the lowest with R4. In-vitro enteric methane production (mg/day) was decreased (P<0.05) with increasing DML supplementation level, however, the lowest CH4 (mg/kg DMI) was recorded with R3 diet. In-vivo ruminal microbial protein had the highest yield (P<0.05) with R3 and the lowest with R4. It is worth saying that, dry Moringa oleifera leaves is useful growth promoter for lambs when supplemented at the maximum of 200mg/kg BW or in average 5 gm/day.
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