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首页> 外文期刊>Tropical Animal Health and Production >Influence of S. babylonica extract on feed intake, growth performance and diet in vitro gas production profile in young lambs.
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Influence of S. babylonica extract on feed intake, growth performance and diet in vitro gas production profile in young lambs.

机译：婴儿链球菌提取物对幼小羔羊采食量，生长性能和日粮体外产气曲线的影响。

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An experiment was completed to determine the effect of Salix babylonica (SB) extract supplementation to the diet of growing lambs. Eighteen Katahdin x Pelibuey male lambs (14+or-2 kg live body weight) were divided randomly in individual cages into three groups and fed three diets varying in SB: a control group was fed on total mixed ration (TMR) without SB (SB0), an SB25 group was fed on TMR plus SB extract at 25 mL/lamb/day, and an SB50 group was fed on TMR plus SB extract at 50 mL/lamb/day on dry matter intake (DMI), average daily gain (ADG), feed efficiency, and in vitro gas production (GP) in lambs fed on TMR. In vitro GP of the TMR fed to lambs was recorded at 2, 4, 6, 8, 10, 12, 24, 48, and 72 h of incubation with 0, 0.6, 1.2, and 1.8 mL extract per gram of DM. Addition of SB extract at low and high doses improved the DMI of lambs by 59.9 and 33.2%, respectively. Relative to the control, low and high extract doses achieved greater lamb ADG during the experimental period. The asymptotic GP increased (P<0.05) with increasing dose of SB extract without affecting the rate of GP or the initial delay before GP begins. Linear increases for in vitro GP with advancing time with different SB extract doses were observed. It is suggested that the use of S. babylonica extract with the rate of 25 mL/lamb/day is beneficial to young lamb's performance growth and thus can be safely used as a feed additive in diets without any negative effects on animal health.
机译：完成了一项实验，以确定柳柳提取物对生长羔羊饮食的影响。将18只Katahdin x Pelibuey雄性羔羊（体重在14+或-2 kg的活体）随机分为三个组，并饲喂SB不同的三种日粮：对照组饲喂不含SB的总混合日粮（TMR）（SB0 ），SB25组以25 mL /羔羊/天的TMR加SB提取物喂养，SB50组以干物质摄入量（DMI）的50 mL /羔羊/天以TMR和SB提取物喂养，平均日增重（ ADG），饲料效率和以TMR喂养的羔羊的体外产气量（GP）。在每克DM孵育0、0.6、1.2和1.8 mL提取物的2、4、6、8、10、12、24、48和72 h时，记录进食羔羊的TMR的体外GP。低剂量和高剂量添加SB提取物分别使羔羊的DMI改善了59.9％和33.2％。相对于对照，低和高提取物剂量在实验期间获得了更大的羔羊ADG。渐进性GP随SB提取物剂量的增加而增加（P <0.05），而不会影响GP的发生率或GP开始之前的初始延迟。观察到体外GP随不同SB提取物剂量的增加而线性增加。有人建议以25毫升/羔羊/天的速度使用乳链球菌提取物，对幼小羔羊的生长性能有利，因此可以安全地用作饲料中的饲料添加剂，而对动物健康没有任何负面影响。

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