不同水平的亚硒酸钠对鸡心肌组织硒沉积及组织结构的影响

通过在公鸡日粮中添加不同水平的亚硒酸钠,研究硒在公鸡心肌组织中的沉积量和对其组织结构功能的影响,以期为亚硒酸钠在禽类生产中的应用提供参考依据。试验选取80只体重接近、健康无疾病的海兰白成年公鸡,随机分成4组,每组20只,分别在日粮中添加0、0.3、0.6和1.0 mg/kg的亚硒酸钠。试验结束时,采集心组织样本,测定硒含量,并通过HE染色观察组织细胞结构。结果表明,公鸡心肌组织中硒含量随日粮硒含量的增加而升高。由此得出,公鸡心肌组织的硒含量随着日粮硒水平的增加而逐渐升高,高硒日粮对心肌组织的结构有一定影响,但由于硒在心肌组织中的沉积能力与其他组织相比较差,因此影响并不明显。

Effects of Different Levels of Sodium Selenite on Se Sediment and Structure of Myocardium Tissues of Cocks

Different levels of sodium selenite was added in the diet of cocks to study the sediment amount of selenium in the myocardium tissues of cocks and its effects on the structure of myocardium tissues of cocks, so as to provide reference basis for the application of sodium selenite in the poultry production. 80 health Hyline White adult cocks with similar body weight were randomly divided into 4 groups to add 0, 0.3, 0.6 and 1.0 mg/kg sodium selenite in the diet. The myocardium samples were collected to determine Se content at the end of the experiment. And structure of tissue cells was observed by HE staining. The results showed that Se content in myocardium tissues increased with the increase of Se content in the diet. This study indicated that Se content in myocardium tissues gradually increased with the increase of Se level in the diet. High-selenium diet had some effects on the structure of myocardium tissues. However, the effect was unconspicuous because of lower sediment capability in myocardium tissues than other tissues.