作　　者： ; ;

机构地区： 韶关学院英东农业科学与工程学院

出　　处： 《中国畜牧兽医》 2012年第7期116-119,共4页

摘　　要： 本研究旨在观察cGhrelin对岭南黄蛋鸡生产性能的调节作用。选择45周龄的岭南黄蛋鸡24羽,随机分为试验组和对照组。试验组定时每3d翅下静脉注射0.5nmol/100g cGhrelin,对照组注射相应体积的生理盐水,并记录各组生产性能;第15天屠宰取样检测生理生化指标。结果表明,cGhrelin可以显著降低蛋鸡的产蛋率及日均采食量(P<0.05),对料蛋比与平均蛋重无显著影响(P>0.05);试验组蛋鸡血清中雌二醇含量显著低于对照组(P<0.05),且三碘甲腺原氨酸与甲状腺激素含量也明显降低(P>0.05)。因此,cGhrelin对岭南黄蛋鸡部分生产性能有负调控作用。 The current study was conducted to investigate the regulatory effects of cGhrelin on productive performance in Lingnan yellow laying hens. A total of 24 Lingnan yellow layers at 45 weeks age were randomly divided into the test group and the control group. The layers in test group were treated by wing intravenous injection of 0. 5 nmol/100 g cGhrelin every 3 days, and the layers in control group were injected in the same volume of normal saline as test group. The productive perform- ance of layers was measured every 3 days, and physiological and biochemical indicators were checked on the 15 days through a slaughtering experiment. The results showed that compared with the control, cGrelin could decrease egg production percentage and daily feed intake （P〈0.05） ; but had no significant effects on feed/egg ratio and average egg weight （P〉0.05） ; concen- trations of triiodothyronine and thyroxine were decreased obviously （P〉0.05） and the level of estradiol was decreased signifi- cantly （P〈0.05）. It indicated that cGhrelin had averse effects on some productive performance in Lingnan yellow layers.

关 键 词： 岭南黄蛋鸡 生产性能 甲状腺素 雌二醇

领　　域： [农业科学] [农业科学]