摘要
选用1日龄Avian肉鸡225只，随机分为5个处理组，每组45只，设3个重复，每个重复15只。在玉米-豆粕型日粮基础上添加纳米硒（0mg／kg、0．15mg／kg、0．3mg／kg、0．6mg／kg、1．2mg／kg），试验期6周。分别于14、28、42日龄空腹称重，每处理随机抽取9只，每重复3只，屠宰测屠宰性能。结果表明：试验期间，添加纳米硒肉鸡的平均增重、饲料消耗高于对照组（P〉0．05）。1—14d、15—28d，纳米硒在0．3—0．6mg／kg的添加水平时肉鸡的料重比显著低于对照组（P〈0．05）；29—42d、1～42d纳米硒在0．15～1．2mg／kg的添加水平肉鸡的料重比极显著的低于对照组（P〈0．01）。42d时纳米硒在0．6—1．2mg／kg的添加水平肉鸡的屠宰性能显著高于对照组（P〈0．05）。纳米硒在0．3—1．2mg／kg的添加水平肉鸡的养分表观消化率高于对照组（P〉0．05）。结论：肉鸡日粮中纳米硒的适宜添加量为0．7—0．8mg／kg。
Two hundred and twenty five Avian broiler chickens at the age of 1 d old were randomly divided into 5 treatments. All treatments were replicated 3 times using 15 birds per pen. The supplementation of nano - selenium was 0, 0.15,0.3, 0.6, 1.2 mg/kg for each treatment, respectively. The experiment lasted 6 weeks. Nine broiler chickens in each group were selected and slaughtered at 14, 28 and 42 days respectively. Immune indexs, antioxi- dation indexes and＇slaughter performance were deteminated after blood collection and slaughter. The results showed that ： the average weight gain （AWG） and the feed consumption （FC） increased with adding nano - selenium during experiment （ P 〉0.05 ）. The feed/gain （F/G） decreased at the level of 0.3 - 0.6 mg/kg of nano - selenium at 1 -14,15 -28 day; the F/G decreased significantly （P 〈0.01 ） at the level of 0.15 -1.2 mg/kg of nanoselenium at 29～ 42,1 ～ 42 day. The slaughter performance （SP） increased significantly （ P 〈 0.05 ） at the range of 0.6 ～1.2 mg/kg of nano - selenium at 42 day. The nutrient apparent digestibility increased （ P 〉 0.05 ） at the range of 0.3 ～ 1.2 mg/kg of nano - selenium. The level of 0.7～0.8 mg/kg of nano - selenium was the optimal supplementation in broiler diet.
出处
《青岛农业大学学报（自然科学版）》
2009年第2期119-123,共5页
Journal of Qingdao Agricultural University(Natural Science)
关键词
纳米硒
肉鸡
生长
屠宰性能
养分
消化率
nano - selenium
broiler chicken
growth
slaughter performance
nutrient
digestibility
