离体肉鸡小肠对纳米氧化铜吸收速率的研究

Study on the absorption rate of nano-Cu on the ex vivo small intestine of broiler chickens

采用翻转肠囊法研究离体肉鸡小肠对硫酸铜、氧化铜、纳米氧化铜的吸收速率。结果显示,在培养时间为0.5h时,纳米氧化铜的吸收速率显著高于硫酸铜与氧化铜(P<0.05);在1h和1.5h时,吸收速率纳米氧化铜高于硫酸铜与氧化铜,但三者之间差异不显著(P>0.05);各组肠道吸收速率前段均高于后段(P>0.05)。试验表明,肉鸡小肠对纳米氧化铜的吸收速率高于硫酸铜和氧化铜。

The everted gut sac experiment was used to study the absorption rate on the ex vivo small intestine of broiler chickens.The results showed that：the intestinal absorption rate of nano-Cu was significantly higher （P 〈 0.05）than that of CuSO4 and CuO within 0.5 h,At the time of 1 h and 1.5 h,there was no Obvious difference（P 〉 0.05） on the rate of intestinal absorption in the three groups.The absorption rate of the anterior segment intestine was higher than that of the posterior segment intestine （P 〉 0.05）.The experiment indicated that the intestinal absorption rate of nano-Cu was higher than that of CuSO4 and CuO.