Effects of Phytooestrogens Supplementation on Blood Biochemical Indexes and Antioxidant Capacity of Lactating Yili Mare

The experiment was conducted to study the effects of phytooestrogens supplementation on blood biochemical indexes and antioxidant capacity of Yili maria during lactation.A total of 24 Yili maria during lactation were divided into four groups with similar age,parity,lactation months,i.e.groups Ⅰ,Ⅱ,Ⅲ and control group.The control group and trial groups fed with the same based diet,groups Ⅰ,Ⅱ and Ⅲ were supplemented with 0.7 g soybean isoflavone,0.7 g genistein,0.35 g soybean isoflavone and 0.35 g genistein respectively.The total duration of the experiment was 90 d,the first 10 d of the experiment was the preliminary period and the formal experiment lasted for 80 d.The blood samples were collected by jugular vein in the experiment of 0,20,40,60,80 days,respectively,3 500 r/min centrifuged 15 min separate plasma and -20 ℃ saved for later use.The results showed that compared with control group,total protein,albumin content and GSH-Px,SOD,CAT activity of blood in trail groups were no significant difference (P >0.05);But CAT,T-AOC activity of blood in trail groups had a upward trend.GLB,BUN content of blood in group Ⅱ were significantly higher than control group and group Ⅰ (P< 0.05);no significant difference was observed among other groups (P >0.05).Compared with control group,the MDA content of blood in groups Ⅰ and Ⅱ were trends to decrease,and group Ⅰ reached significant level (P< 0.05).Therefore,phytooestrogens supplementation had enhanced immune function,improved the body's antioxidant capacity of Yili maria during lactation,when supplementary feeding 0.7 g soybean isoflavone on antioxidant capacity of Yili maria during lactation was more obvious effect.