甘露寡聚糖和粪链球菌对雏鸡和哺乳仔猪血液SOD和GSH-px活性的影响

试验一设 ４ 组，其中Ⅰ、Ⅱ和Ⅲ组分别在雏鸡每千克日粮中添加２ ｇ 甘露寡聚糖、０．０６ ｇ 粪链球菌剂和２ ｇ 甘露寡聚糖＋ ０．０６ ｇ 粪链球菌剂，对照组为基础日粮．试验期为６ 周．结果表明，试验Ⅰ、Ⅱ和Ⅲ组雏鸡血液中 Ｓ Ｏ Ｄ 和 Ｇ Ｓ Ｈ ｐｘ 活性均极显著高于对照组（ Ｐ＜ ０．０１）， Ｓ Ｏ Ｄ 含量分别提高１１．５％ 、１２．１％ 和１４．０％ ， Ｇ Ｓ Ｈ ｐｘ 含量分别提高 ９．６％ 、８．１％ 和９．８％ ；而各试验组之间差异不显著（ Ｐ＞ ０．０５）．试验二在集约化猪场中挑选胎龄、产仔时间一致的初生仔猪６ 窝，每窝选择体重一致、健康仔猪６ 头，共３６ 头，分 ３ 组，每组１２ 头．从出生第２ 天开始，试验Ⅰ组每头仔猪每次灌服２５０ ｍ ｇ 甘露寡聚糖，试验Ⅱ组每头仔猪每次灌服１ ｇ 粪链球菌剂，对照组仔猪灌服生理盐水，隔天灌服１ 次，试验期为 ３０ ｄ．结果表明，口服甘露寡聚糖和粪链球菌均可极显著地提高哺乳仔猪血液中 Ｓ Ｏ Ｄ 和 Ｇ Ｓ Ｈ ｐｘ 活性（ Ｐ＜ ０．０１）， Ｓ Ｏ Ｄ 含量分别提高了１０．４％ 和６．４％ ， Ｇ Ｓ Ｈ ｐｘ 含量分别提高了２４％ 和１４．５％ ；试验Ⅰ组和Ⅱ组之间差异不显著（ Ｐ＞ ０．０５）．２ 个试验结果说明

Effect of mannan-oligosaccharide and streptococcus faecium on activities of SOD and GSH-px in blood of chickens and sucking piglets

In experimentⅠ, 40 chickens were divided randomly into 4 groups : group Ⅰ (diet+MOS) , group Ⅱ (diet+S.faecalis), group Ⅲ (diet+MOS+ S.faecalis) and control(diet). The rusults showed that the activities of SOD and GSH px in blood of chickens were significantly higher in the 3 treatments than those in control ( P <0.01). SOD in blood increased by 11.5%, 12.1% and 14.0% in the 3 treatments respectively compared with control. GSH px levels in blood increased by 9.6%, 8.1% and 9.8% in the 3 treatments respectively compared with control. There were no significant differences among the 3 treatments. In experiment Ⅱ, 36 piglets selected from 6 farrows, 6 piglets from each farrow, were divided randomly into 3 groups. Each piglets in group Ⅰ was orally administrated 250 mg MOS; Each piglets in group Ⅱ was orally administrated 1 g S.faecalis ; Each one in control was orally administrated saline solusion from 2 days old to 30 days old every other day. The results showed that oral administrations of MOS and S.faecalis could significantly increase the activities of SOD and GSH px as compared with those in control ( P <0.01) . The activity of SOD increased by 10.4%(group Ⅰ) and 6.4% (group Ⅱ) in 2 trearments respectively compared with control. The level of GSH px increased by 24% (group Ⅰ) and 14.5% (group Ⅱ)compared with control. There were no remarkable differences between group Ⅰ and group Ⅱ ( P >0.05). The results indicated that the activities of SOD and GSH px in the blood of piglets and chickens were all increased significantly so that the ability of resistance to free radical of animal was strengthened by adding MOS and S.faecalis, by means of improving micro organisms in the intestine and stimulating the absorption of some nutrients such as Se, Cu, Zn, etc.