瘤背石磺对9种常规饲料原料中营养物质的表观消化率  

Apparent digestibility of nine conventional feed ingredients for Onchidium struma

作　　者：沈永龙[1,2] 黄金田[2] 戈贤平[1] 王爱民[2] 吕富[2] 刘成[2] 

机构地区：[1]南京农业大学无锡渔业学院,江苏无锡214081 [2]盐城工学院江苏省滩涂底栖生物重点实验室,江苏盐城224051

出　　处：《上海海洋大学学报》2013年第1期105-111,共7页Journal of Shanghai Ocean University

基　　金：国家级星火计划项目(2011GA690278);江苏省科技厅2010年苏北科技发展计划科技富民强县专项资金(BN2010050);江苏省水产三新工程项目(Y2012-22)

摘　　要：以0.5%的三氧化二铬(Cr2O3)为外源指示剂,由70%基础饲料(螺旋藻)和30%试验原料组成试验日粮,研究瘤背石磺(Onchidium struma)对鱼粉、肉骨粉、豆粕、玉米蛋白粉、棉籽蛋白粉、菜粕、棉籽粕、小麦粉和玉米粉9种饲料原料的干物质、粗蛋白、粗脂肪、粗纤维、氨基酸、钙及总磷的表观消化率。试验选用初均重(16.82±2.14)g的瘤背石磺2 400只,随机分成10组,每组3个重复,每个重复40只,且以饲喂螺旋藻粉组为对照组。结果显示,9种饲料原料的干物质、粗蛋白、粗脂肪、粗纤维、总氨基酸、必需氨基酸、钙和总磷的表观消化率的范围分别为33.24%～55.29%、27.30%～79.35%、36.91%～69.81%、34.89%～65.04%、25.35%～75.78%、21.54%～72.57%、44.98%～74.64%和10.42%～32.15%。在7种蛋白饲料中,以玉米蛋白粉的各项营养物质的表观消化率较高,棉籽蛋白粉和棉粕次之;在两种能量饲料中,以玉米粉的各项营养成分的表观消化率较高,但低于玉米蛋白粉。由此可见,玉米蛋白粉可作为瘤背石磺优质饲料原料来替代或部分替代螺旋藻;同时,玉米粉和棉籽蛋白粉也可以作为重要的饲料原料合理搭配、适量使用。The apparent digestibility of dry matter,crude protein,crude fat,crude fiber,amino acids,calcium and phosphorus of nine feed ingredients for Onchidium struma were determined.Taking spirulina feed as the basal diet,test diets consisted of 70% basal diet and 30% test feed ingredients,and added 0.5% Cr2O3 as an indicator.Two thousand four hundred Onchidium struma with the average body weight of（16.82±2.14） g were randomly divided into 10 groups with 3 replicates per group and 40 individuals per replicate,and one control group randomly selected from the 10 groups was fed basal diet.The results showed that the apparent digestibility for dry matter,crude protein,crude fat,crude fiber,total amino acids,essential amino acids,calcium and phosphorus of nine feed ingredients were 33.24%-55.29%,27.30%-79.35%,36.91%-69.81%,34.89%-65.04%,25.35%-75.78%,21.54%-72.57%,44.98%-74.64% and 10.42%-32.15%,respectively.The results indicated that corn gluten meal showed the best apparent digestibility for all nutrition in the seven protein feed,followed by cottonseed gluten meal and cottonseed meal.In the two energy feed,corn meal showed higher apparent digestibility than wheat meal,but lower than the corn gluten meal.Thus,it can be seen that corn gluten meal can be used as high quality feed raw material,and it can partially replace spirulina feed in Onchidium struma feeds.At the same time,we can also reasonably collocate and moderately use corn meal and cottonseed gluten meal.

关 键 词：瘤背石磺 常规饲料原料 营养物质 表观消化率 

分 类 号：S963.1[农业科学—水产养殖]