机构地区:[1]河南农业大学牧医工程学院,郑州450002 [2]河南商都生物技术股份有限公司,郑州466311
出 处:《动物营养学报》2013年第11期2668-2674,共7页CHINESE JOURNAL OF ANIMAL NUTRITION
基 金:动物营养学国家重点实验室开放基金项目(004DA125184F1209);郑州市创新型科技人才队伍建设工程-科技创新团队项目(121PCXTD516)
摘 要:本试验旨在研究发酵饲料对朗德鹅生长性能、产肝性能、肠道黏膜结构及组织器官ATP酶活性的影响。试验选取240只70日龄体重相近的健康朗德公鹅,随机分为3个组,每组10个重复,每个重复8只鹅。对照组饲喂玉米-豆粕型基础饲粮,只添加35%的水现喂现拌;试验组在基础饲粮的基础上添加1‰的发酵剂,加入35%的水进行密封发酵,其中试验1组发酵24 h,试验2组发酵48 h。正式饲养2周后每个重复挑选1只进行屠宰,剩余的鹅只进行填饲试验。结果表明:1)试验1组平均日采食量显著高于对照组(P<0.05)。2)试验1、2组十二指肠绒毛高度和绒毛高度/隐窝深度(V/C)显著高于对照组(P<0.05);试验2组盲肠绒毛高度和隐窝深度显著低于对照组(P<0.05),试验1组盲肠V/C显著低于对照组(P<0.05)。3)试验1、2组心脏Mg2+-ATP酶活性显著高于对照组(P<0.05);试验1、2组肝脏Na+,K+-ATP酶活性显著低于对照组(P<0.05),Mg2+-ATP酶活性显著高于对照组(P<0.05)。4)试验2组育肥试验期的肝脏重和肝屠比显著高于对照组(P<0.05);试验2组填饲试验期的肝屠比显著高于对照组(P<0.05)。由此可见,发酵饲料能改善朗德鹅生长性能和十二指肠肠绒毛的生长发育,提高心脏Na+,K+-ATP酶、Mg2+-ATP酶活性,提高朗德鹅填饲期的肥肝重和肝屠比。This experiment was conducted to study the effects of fermented feed on growth performance,fatty liver performance,intestinal mucosa structure and organ tissue ATPase activity of Landaise geese.A total of 240 seventy-day-old healthy Landaise geese (male) were randomly assigned to 3 groups with 10 replicates per group and 8 geese per replicate.The control group was fed a corn-soybean based diet added 35% water and the experimental groups were fed the basal diets supplemented 1‰ fermentation agent and 35% water to seal fermentation (trial group 1 was fermented for 24 hours and trial group 2 was fermented for 48 hours).One goose of each replicate was selected to slaughter after two weeks,and the other geese were force-feed to produce fatty liver.The results showed as follows:1) the average daily feed intake in trial group 1 was significantly higher than that in control group (P 〈 0.05).2) The villus height and villus height/crypt depth (V/C) of duodenum in trial groups 1 and 2 were significantly higher than those in control group (P 〈 0.05) ; the villus height and crypt depth of cecum in trial group 2 were significantly lower those that in control group (P 〈 0.05),and the V/C of cecum in trial groups 1 was significantly lower than that in control group (P 〈 0.05).3) The heart Mg2 +-ATPase activity in trial groups 1 and 2 was significantly higher than that in control group (P 〈 0.05) ;the liver Na +,K +-ATPase activity in trial groups 1 and 2 was significantly higher than that in control group (P 〈 0.05),and the liver Mg2 +-ATP activity was significantly higher than that in control group (P 〈 0.05).4) The fiver weight and live/carcass in trial group 2 were significantly higher than those in control group in fattening trial period (P 〈 0.05) ; the live/carcass in trial group 2 was significantly higher than that in control group in force-feeding trial period (P 〈 0.05).In conclusion,the fermented feed can improve the growth performanc
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