【摘要】 本文报道了日粮中添加复合菌制剂对鸡肠道微生态的调节作用，以及对血液ＳＯＤ和ＧＳＨ－ｐｘ活力的影响。２４只１日龄海兰褐色蛋鸡雄性雏鸡随机平均分成２组，即试验组（１２只）和对照组（１２只）。试验结果表明：（１）盲肠和回肠内容物的ｐＨ值，试验组（６．０２２±０．３７８４，５．１３５±０．３３５５）都极显著低于对照组（６．６６４±０．１９２６，６．０７９±０．３７２９）（Ｐ＜０．０１）。（２）每克盲肠内容物大肠杆菌数（ｌｇＮ），试验组（８．２２４±０．１９６９）与对照组（８．５３±０．３３１４）比较差异极显著（Ｐ＜０．０１）。（３）血液ＳＯＤ和ＧＳＨ－ｐｘ活性，试验组（９．６３±０．３７１８，７５１７．４±３６６．８５）与对照组（８．５６５±０．５７２４，７０６４．７±３５３．６９）比较差异极显著（Ｐ＜０．０１）。说明了复合菌制剂能有效地改善鸡肠道微生态环境，使盲肠大肠杆菌数和盲肠、回肠内容物ｐＨ值极显著降低。并且能极显著提高鸡血液ＳＯＤ和ＧＳＨ－ｐｘ活性。更多还原

【Abstract】 The effects of complex live bacterical preparation (CLBP)in diets for chickens on E.coli count in ceca,gastrointestinal pH and SOD,GSH px in blood were reported in this paper. 24 one day old male chickens of Hy line were divided randomly into 2 groups:treatment group(basic diet containing 0.4% CLBP)and control(basic diet).All chickens were slaughtered at 42 days old The results showed that (1)the pH in ceca and ilium of treatment group(6.022±0.3784,5.135±0.3355respectively)is significantly lower than that of the control(6.664±0.1926,6.079±0.3729respectively)(P<0.01);(2)E.coli count (lg N) in ceca of treatment group(8.224±0.1969) was lower than that of the control(8.530±0.3314)(P<0.05);(3)The activity of SOD and GSH px in blood of treatment group(9.63±0.3718,7517.4±366.85,respectively) were significantly higher than those of the control(8.565±0.5724,7064.7±353.69,respectively)(P<0.01).It is concluded that the activity of SOD and GSH px in blood are enhanced, and E.coli count in ceca and the pH in ceca and ileum are reduced at the same time,by improvement of intestinal microflora of chickens with CLBP treatment.更多还原