动物营养学报2015，Vol.27Issue(7)：2184-2192,9.DOI:10.3969/j.issn.1006-267x.2015.07.024
苜草素对产蛋高峰期蛋鸡脂肪肝出血综合征预防作用研究
Prophylactic Effect of Polysavone on Fatty Liver Hemorrhagic Syndrome in Laying Hens
摘要
Abstract
This experiment was conducted to investigate prophylactic effects of polysavone ( alfalfa extract) on fatty liver hemorrhagic syndrome ( FLHS) in laying hens. Fifty Jinghong 1 laying hens aged 266 days were randomly divided into 5 groups, with 5 replicates per group and 2 hens per replicate. Hens in group Ⅰ were fed on a basal diet, while hens in groupsⅡ,Ⅲ,Ⅳ,Ⅴwere fed on high-energy low-protein diets supplemen-ted with 0, 200, 600, 1 000 mg/kg Ploysavone, respectively. The experiment lasted for 60 days. The results showed as follows:1) compared with groupⅠ, the average daily feed intake ( ADFI) in groupⅡwas signif-icantly decreased during 1 to 60 d ( P<0.05) , while the ratio of feed to egg in group Ⅱ was significantly in-creased during the first 30 d ( P<0.05) , as well as the triglyceride ( TG) content in yolk in group Ⅱ on day 14 ( P<0.05) . Furthermore, laying hens in group Ⅱ showed the pathological characteristics of FLHS on day 30 and had higher incidence of FLHS on day 60 than group Ⅰ. 2) Compared with group Ⅱ, on day 30, the liver fat rate in group Ⅲ, the liver hemorrhagic index and liver fat rate in groups Ⅳ and Ⅴ were significantly decreased (P<0.05). In addition, the incidence rate of FLHS in group Ⅲ showed a decrease of 33.3% than group Ⅱ and no FLHS was found in groups Ⅳ and Ⅴ. Moreover, compared with group Ⅱ, the incidence of FLHS in groupⅤwas decreased by 50.0% on day 60. 3) Compared with groupⅡ, the ratio of feed to egg in group Ⅳwas significantly decreased during the first 30 d ( P<0.05) , as well as the TG content in yolk on days 14, 28 and 56 in groupsⅢ,Ⅳ andⅤ ( P<0.05) . Also, the total lipids content in yolk on days 28 and 56 in groupⅤwas significantly decreased ( P<0.05) , and the TG content in yolk on day 42 in groupⅣwas signifi-cantly decreased ( P<0.05) . In conclusion, on day 30, different doses of Ploysavone can prevent FLHS in lay-ing hens which are fed high-energy low-protein diet. Furthermore, on day 60, the incidence of FLHS in groupⅤ is decreased by 50.0%.关键词
苜草素/蛋鸡/蛋鸡脂肪肝出血综合征Key words
polysavone/laying hens/fatty liver hemorrhagic syndrome分类
畜牧业引用本文复制引用
杨长进,董晓芳,佟建明,高玉鹏..苜草素对产蛋高峰期蛋鸡脂肪肝出血综合征预防作用研究[J].动物营养学报,2015,27(7):2184-2192,9.基金项目
国家蛋鸡产业技术体系岗位科学家任务(CARS-41-K16) （CARS-41-K16）
"十二五"国家科技支撑计划课题(2013BAD10B04) （2013BAD10B04）
中国农业科学院科技创新工程( ASTIP-IAS08) （ ASTIP-IAS08）
