| 摘要: |
| 以28日龄早期断乳仔猪为对照，研究了添喂大豆蛋白酶解物对21日龄早期断乳仔猪消化道发育的影响。结果表明，试验组仔猪胃内容物的胃蛋白酶总活性较对照组高3．22％，但差异不显著，十二指肠内容物胰蛋白酶总活性较对照组增高136.05％，差异极显著（P<0.01），十二指肠内容物淀粉酶活性和脂肪酶活性均极显著低于对照组（P<0.01）；试验组仔猪胃窦黏膜厚度、中部十二指肠绒毛高度和隐窝深度以及中部回肠绒毛高度均极显著高于对照组（P<0.01），而中部十二指肠、前段空肠和中部回肠的绒毛宽度以及绒毛高度与隐窝深度之比值与对照组差异均不显著。 |
| 关键词: 早期断乳仔猪 大豆蛋白酶解物 消化道酶活性 胃肠道形态结构 |
| DOI： |
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| 基金项目:国家自然科学基金项目（30070565） |
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| Effect of soybean protein hydrolysate on digestive tract development of early weaned 21-day-old piglet |
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| Abstract: |
| An experiment was done to investigate the effect of soybean protein hydrolysate on digestive tract development of 21-day-old weaned piglets by making 28-day-old weaned piglets as the control.The results showed that,compared with the control,pepsin total activity of gastric chyme of piglet in the treatment increased by 3.22%,but the difference was not significant(P>0.05),protease total activity of duodenal chyme remarkably increased by 136.05%(P<0.01),whereas lipase activity and amylase activity of duodenal chyme decreased(P<0.01).The thickness of gastric antrum mucosa,middle duodenum villus height,crypt depth and middle ileum villus height of piglet in the treatment were all significantly higher than those of the control(P<0.01),but there was no significant difference in middle duodenum villus,foreside jejunum,middle ileum villus width and villus height/crypt depth of piglet in the treatment when compared with the control. |
| Key words: early weaned piglet soybean protein hydrolysate digestive tract enzyme activity morphol ogy of pastrointestinal tract |
