流行病学调查结果表明β-胡萝卜素等类胡萝卜素可预防癌症。体内实验亦证明斑蝥黄嘌呤能有效地清除单线态氧等自由基,防止自由基对细胞损伤,因而可作为一种抗癌因子。为进一步确定斑蝥黄嘌呤(简称CX)直接或间接的抗氧化作用,观察CX对渗出性素质疾患的影响(渗出性素质简称ED,为禽类V_E和Se缺乏引起严重水肿的一类疾患),作者选择来克亨鸡进行了动物实验。82只小鸡随机分为三组:P组、CX组及V_E组,动物数分别为36、36和10只。P组:饲以V_E及Se缺乏饲料,并补充相应的安慰剂作为对照(5g安慰剂/kg饲料);CX组;同样饲以缺乏V_E及Se但补充CX(5gCX/kg饲料) Epidemiological findings suggest that beta-carotene and other carotenoids prevent cancer. In vivo experiments also show that canthaxanthine can effectively remove singlet oxygen and other free radicals, to prevent free radical damage to cells, which can be used as an anti-cancer factor. In order to further determine the direct or indirect antioxidant effects of canthaxanthine (CX), the effect of CX on exudative quality disorders (exudative quality referred to as ED, a class of diseases in which birds V_E and Se lack severe edema) , The author chose Laike chicken for animal experiments. 82 chickens were randomly divided into three groups: P group, CX group and V_E group, the number of animals were 36, 36 and 10, respectively. Group P: fed with V_E and Se lacking feed, supplemented with placebo as control (5g placebo / kg diet); CX; fed with CX and LX lacking V_E and Se supplemented with CX (5gCX / kg feed)