饮水硼对非洲雏鸵鸟肝脏组织的影响

本研究旨在探究饮水硼对非洲雏鸵鸟肝脏组织的影响。本试验选择36羽10日龄非洲雏鸵鸟，随机分成6组，每组6羽，饲喂相同的基础日粮及不同添加量的饮水硼，各组饮水中硼含量分别为0、40、80、160、320、640 mg/L。试验期80 d。试验结束后，称体重，颈动脉放血致死。处死后立即取出肝脏称重，计算肝脏指数。取肝脏标本于4%多聚甲醛常温固定，制作石蜡切片，HE染色，显微观察并照相。结果证实，低剂量的饮水硼（40、80 mg/L）有利于肝脏发育，改善肝脏组织结构，使肝血窦里的枯否氏细胞增多，肝血窦增大，最佳添加量为80 mg/L。高剂量的饮水硼（160、320和640 mg/L）则会对非洲雏鸵鸟肝脏发育产生不良影响，使肝脏组织出现明显的病理学变化。

Effect of Drinking Boron on Liver Tissue of Africa Ostrich Chicks

The purpose of this study was to investigate the effects of drinking boron on liver tissue of Africa ostrich chicks,36 10-day-old Africa ostrich chicks were randomly divided into 6 groups with 6 replicates in each group. The same basic diet and different doses of drinking boron were fed,boron contents in drinking water in each group were 0,40,80,160,320,640 mg/L,respectively. Test period lasted for 80 d. After the test,weighed,carotid artery bleeding to death,removed the liver after death,liver indexes were calculated. Liver specimens were placed in 4% paraformaldehyde and then embedded in paraffin. The livers were sectioned,stained by HE,and then observed and photoed under microscope. The results confirmed that low doses of drinking boron (40,80 mg/L) were in favor of liver development,improved the organizational structure of the liver,increased the Kupffer cells in the liver sinusoid,enlarged hepatic sinusoid,the optimal dosage was 80 mg/L. High doses of drinking boron (160,320 and 640 mg/L) adversely affected the development of Africa ostrich chicks' livers and made liver tissue pathological changes obviously.