单 位：
浙江大学生物系统工程与食品科学学院农业部农产品产后处理重点实验室农业部农产品营养功能评价实验室浙江省农产品加工技术研究重点实验室馥莉食品研究院;杭州康源食品科技有限公司
关键词：
单月桂酸甘油酯;蛋鸡;生产性能;蛋品质;血清;免疫器官;腹脂
摘 要：
为研究饲粮添加单月桂酸甘油酯(GML)对蛋鸡生产性能、蛋品质、血清生化指标、免疫器官指数和腹脂形态的影响,以44周龄海兰褐蛋鸡为研究对象,在饲粮中添加150、300和450 mg/kg GML饲喂8周后分析蛋鸡相关指标的变化。结果表明,与对照组相比,饲粮添加300和450 mg/kg GML可以提高蛋鸡产蛋率、血清中超氧化物歧化酶和谷胱甘肽过氧化物酶的活力(P<0.05),同时显著降低血清中丙氨酸氨基转移酶的活力,丙二醛、总胆固醇、低密度脂蛋白胆固醇和总胆红素的含量以及腹脂率(P<0.05)。饲粮添加300 mg/kg GML可以显著提高鸡蛋蛋白高度、哈氏单位和蛋黄颜色(P<0.05)。饲粮添加450 mg/kg GML还可以显著提高血清中总蛋白和高密度脂蛋白胆固醇的含量(P<0.05),同时显著降低蛋鸡血清中天门冬氨酸氨基转移酶活力(P<0.05)。此外,饲粮添加GML可以显著降低蛋鸡料蛋比和血清中甘油三酯的含量以及脂肪细胞的平均面积、平均周长和平均体积(P<0.05),显著提高蛋鸡单个蛋重、脾脏指数和胸腺指数(P<0.05)。总体来看,饲喂GML对提高蛋鸡生产性能、蛋品质、抗氧化能力和免疫功能,改善蛋鸡脂肪代谢和健康状况具有积极的作用。
译 名：
Effects of Glycerol Monolaurate on Production Performance, Egg Quality, Serum Parameters, Immune Organ Index and Abdominal Fat Morphology of Laying Hens
作 者：
LIU Mengyun;WANG Jianli;FENG Fengqin;College of Biosystems Engineering and Food Science, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture,Zhejiang Key Laboratory for Agro-Food Processing,Fuli Institute of Food Science, Zhejiang University;Hangzhou Kangyuan Food Science & Technology Ltd.;
关键词：
glycerol monolaurate;;laying hens;;productive performance;;egg quality;;serum;;immune organ;;abdominal fat
摘 要：
This study was conducted to evaluate the effects of basal diets supplemented with 150, 300 and 450 mg/kg glycerol monolaurate(GML) on production performance, egg quality, serum biochemical index, immune organ index and abdominal fat morphology of Hy-Line brown laying hens at 44 to 51 weeks of age. The results showed that compared with the control, the supplementation of 300 and 450 mg/kg GML could significantly improve the laying rate, the activity of superoxide dismutase(SOD) and glutathione peroxidase(GSH-Px)(P<0.05). The supplementation of 300 and 450 mg/kg GML could also significantly decrease the activity of alanine transaminase, the concentration of malondialdehyde,total cholesterol, low density lipoprotein cholesterol, total bilirubin and abdominal fat percentage(P<0.05). The supplementation of 300 mg/kg GML could significantly improve the albumen height, Haugh unit and yolk color(P<0.05).The supplementation of 450 mg/kg GML could also significantly improve the concentration of total protein and high density lipoprotein cholesterol and decrease the activity of aspartate transaminase(P<0.05). Dietary GML could significantly decrease the feed to egg ratio of laying hens and the serum total concentration of triglyceride(TG) and the average area,circumference and volume of abdominal fat cells, and significantly improve the average egg weight, spleen index and thymus index of laying hens(P<0.05). In conclusion, dietary GML had positive effects on improving the productive performance,egg quality, fat metabolism, antioxidant capacity and immune function of laying hens.
