摘要
实验以三氧化二铬(Cr2O3)为外源指示剂,采用“70%基础饲料+30%实验原料”的方法配制实验饲料,测定了初始体质量为(28.68±0.49)g的黄颡鱼(Peltobagrus fulvidraco)对国产鱼粉、进口鱼粉、进口鸡肉粉和脱脂黄粉虫粉在膨化制粒和非膨化制粒两种工艺下的干物质、粗蛋白、粗脂肪和氨基酸表观消化率。结果显示,在非膨化制粒工艺下,黄颡鱼对进口鸡肉粉的干物质表观消化率显著高于另外3种原料(P<0.05),黄颡鱼对黄粉虫粉蛋白消化率最低(P<0.05),黄颡鱼对进口鸡肉粉脂肪表观消化率显著高于国产鱼粉和进口鱼粉(P<0.05);在膨化制粒工艺下,进口鸡肉粉的干物质表观消化率显著低于另外3种原料(P<0.05),国产鱼粉和进口鱼粉的粗蛋白质消化率达94%以上,显著高于另外两种原料(P<0.05),但进口鸡肉粉的脂肪表观消化率显著低于其他原料(P<0.05)。在非膨化制粒工艺和膨化制粒工艺下国产鱼粉、进口鱼粉和黄粉虫粉的干物质表观消化率无显著性差异,但在非膨化制粒工艺下进口鸡肉粉的干物质表观消化率显著高于膨化制粒工艺(P<0.05)。对于国产鱼粉、进口鱼粉和黄粉虫粉而言,非膨化制粒工艺的蛋白消化率显著低于膨化制粒工艺(P<0.05),而鸡肉粉则相反。膨化加工工艺进口鱼粉的脂肪表观消化率显著高于非膨化加工工艺(P<0.05),而膨化加工工艺的黄粉虫脂肪表观消化率显著低于非膨化加工工艺(P<0.05)。氨基酸的消化率结果与粗蛋白的表观消化率变化趋势基本一致。由此可知,对于黄颡鱼饲料,国产鱼粉和进口鱼粉是最佳的蛋白质来源,进口鸡肉粉和黄粉虫亦可以作为其优质的蛋白质来源。对于进口鱼粉、国产鱼粉和黄粉虫粉,膨化制粒工艺更有利于黄颡鱼对其干物质、蛋白、脂肪和氨基酸等营养元素的消化利用,而对于进口鸡肉粉,非膨化制粒工艺更有利于黄颡鱼对营养元素的消化利用。
In order to evaluate the digestibility of yellow catfish(Pelteobagrus fulvidraco)to different protein ingredients with different processing,the test diets were consisted of 70%basal diet and 30%test ingredients,including domestic and imported fish meal,chick meal and mealworm meal,and chromium sesquioxide(Cr2O3)was used the indicator to determine the apparent digestibility of dry matter,crude protein,crude lipid and amino acids.The yellow catfish with an average body weight of(28.68±0.49)g was randomly divided into 10 groups with 3 replicates per group and 12 fish per replicate.The results using pelleting processed diet showed that the apparent digestibility of dry matter in domestic fish meal was higher than that of the other three ingredients(P<0.05)and the apparent digestibility of protein in mealworm meal was the lowest(P<0.05),and the apparent digestibility of crude lipid in chick meal was significantly higher than domestic and imported fish meal(P<0.05).The results using extrusion processed diet indicated that the apparent digestibility of dry matter in chick meal was significantly lower than that of the other three ingredients(P<0.05),and the apparent digestibility of protein in domestic and imported fish meal was 94%,and the apparent digestibility of crude lipid in chick meal was also significantly lower than that of the other three ingredients(P<0.05).Different processing technology did not impact the apparent digestibility of dry matter using domestic and imported fish meal and mealworm meal in yellow catfish,however,compared to extrusion processing,pelleting processing significantly increased the apparent digestibility of dry matter in chick meal(P<0.05).The apparent digestibility of protein in domestic and imported fish meal and mealworm meal with pelleting processing was lower than extrusion processing(P<0.05),however,chick meal was the opposite.Compared with pelleting processing,the apparent digestibility of crude lipid in imported fish meal was higher with extrusion processing(P<0.05),while for mealworm meal,it was lower with extrusion processing(P<0.05).The apparent digestibility of amino acids is positively correlated with apparent digestibility of crude protein for feed ingredients.In conclusion,different sources and qualities of fish meal lead to different apparent digestibility of nutrients.The domestic and imported fish meal was the best protein source for yellow catfish,and chick meal and mealworm meal were also high-quality protein source for yellow catfish.
作者
刘翠
周建成
刘昊昆
韩冬
金俊琰
杨云霞
朱晓鸣
解绶启
LIU Cui;ZHOU Jian-Cheng;LIU Hao-Kun;HAN Dong;JIN Jun-Yan;YANG Yun-Xia;ZHU Xiao-Ming;XIE Shou-Qi(State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China;University of Chinese Academy of Sciences,Beijing 100049,China;Wuhan DBN Aquaculture Technology Co.LTD,Wuhan 430090,China;Hubei Engineering Research Center for Aquatic Animal Nutrition and Feed,Wuhan 430072,China)
出处
《水生生物学报》
CAS
CSCD
北大核心
2020年第6期1215-1221,共7页
Acta Hydrobiologica Sinica
基金
国家重点研发计划(2019YFD0900200)
国家特色淡水鱼产业技术体系(CARS-46)资助。
关键词
黄颡鱼
动物性蛋白饲料原料
膨化制粒工艺
非膨化制粒工艺
表观消化率
Yellow catfish
Animal protein ingredients
Pelleting processing
Extrusion processing
Apparent digestibility coefficients