文献类型：期刊文献

中文题名：珍珠龙胆石斑鱼对7种蛋白源的表观消化率

英文题名：APPARENT DIGESTIBILITY COEFFICIENTS OF SEVEN PROTEIN SOURCES FOR JUVENILE HYBRID GROUPER(EPINEPHELUS FUSCOGUTTATUS♀×EPINEPHELUS LANCEOLATUS♂)

作者：郑朝中[1];曹俊明[2,3,4];董晓慧[1,2,3];迟淑艳[1,2,3];章双[1,2,3];杨奇慧[1,2,3];刘泓宇[1,2,3];邓君明[1,2,3];张卫[1,2,3];谭北平[1,2,3];谢诗玮[1,2,3]

机构：[1]广东海洋大学水产学院水产动物营养与饲料实验室,湛江524088;[2]农业农村部华南水产与畜禽饲料重点实验室,湛江524088;[3]广东省水产动物精准营养与高效饲料工程技术研究中心,湛江524088;[4]广东省农业科学院动物科学研究所农业农村部华南动物营养与饲料重点实验室,广州510640

年份：2023

卷号：47

期号：2

起止页码：257

中文期刊名：水生生物学报

外文期刊名：Acta Hydrobiologica Sinica

收录：CSTPCD、、CSCD2023_2024、北大核心、CSCD、北大核心2020

基金：国家重点研发计划(2019YFD0900200);国家自然科学基金(32002402);广东省基础与应用基础研究基金(2019A1515011970和2021A1515010428)资助。

语种：中文

中文关键词：表观消化率;鱼粉替代;蛋白源;珍珠龙胆石斑鱼

外文关键词：Apparent digestibility coefficients;Fishmeal replacement;Hybrid grouper;Epinephelus fuscoguttatus♀×Epinephelus lanceolatus♂

中文摘要：研究测定了珍珠龙胆石斑鱼(Epinephelus fuscoguttatus♀×Epinephelus lanceolatu♂)对黄粉虫粉(TMM)、黑水虻虫粉(HIM)、乙醇梭菌蛋白(CAP)、荚膜甲基球菌蛋白(MCM)、小球藻粉(CVM)、棉籽浓缩蛋白(CPC)和秘鲁鱼粉(PFM)共7种蛋白源的表观消化率(ADCs)。试验配制1组含50%鱼粉的基础饲料,而7组试验饲料按70%的基础饲料和30%的蛋白源配制而成,8组饲料都加入0.1%氧化钇(Y_(2)O_(3))作为外源标志物。将初始平均体重为(9.95±0.50)g的杂交石斑鱼幼鱼随机分配到0.3 m^(3)的玻璃钢桶中,每个处理组设置3个重复(桶),每桶30尾鱼。经过5d的试验饲料饲喂驯化后,每天两次用虹吸法收集粪便样本。结果表明,7种蛋白源的干物质ADCs从高至低依次为:CVM>TMM=CAP=CPC>HIM=MCM=PFM。CVM的干物质、粗蛋白和大多数氨基酸(包括蛋氨酸和苏氨酸)的ADCs最高。而HIM的干物质、粗蛋白和大多数氨基酸的ADCs低于其他组。CAP的赖氨酸ADCs高于其他6种蛋白原料,粗蛋白ADCs仅次于CVM。PFM的干物质ADCs明显低于CVM,但与CAP没有显著差异。此外,PFM的粗蛋白ADCs低于CVM、CAP和MCM三种蛋白原料,并且其赖氨酸ADCs低于CAP,苏氨酸ADCs也低于CAP和CVM。研究表明,这7种蛋白源中小球藻粉(CVM)和乙醇梭菌蛋白(CAP)在珍珠龙胆石斑鱼中显示出较高的表观消化率。

外文摘要：The apparent digestibility coefficients(ADCs)of Tenebrio molitor meal(TMM),Hermetia illucens meal(HIM),Clostridium autoethanogenum protein(CAP),Methylococcus capsulatus meal(MCM),Chlorella vullgaris meal(CVM),Cottonseed protein concentrate(CPC)and Peruvian fishmeal(PFM)were determined in juvenile hybrid grouper(Epinephelus fuscoguttatus♀×Epinephelus lanceolatu♂).A basal diet(including 50%fishmeal)and seven test diets(700 g/kg of the basal diet and 300 g/kg of each test ingredient)were formulated with 0.1%yttrium oxide(Y_(2)O_(3))as an inert marker.The juvenile hybrid groupers,with initial average body weight of(9.95±0.50)g,were randomly distributed into 0.3 m^(3)fiberglass tanks,each tank with 30 fish.The faeces samples were collected twice-daily by siphoning following feeding fish after five days of domestication.The ADCs of dry matter of seven test ingredients were ranked as CVM>TMM=CAP=CPC>HIM=MCM=PFM(P<0.05).CVM showed the highest ADCs of dry matter(DM),crude protein(CP)and most amino acids(including methionine and threonine)except crude lipids(CL),whereas HIM had the relatively lower ADCs of DM,CP and most amino acids except CL.CAP had a higher lysine digestibility than the other six test ingredients,and was only lower than CVM in the ADC of CP.The ADC of DM in PFM was significantly lower than that in CVM(P<0.05),and showed no differences with that in CAP(P>0.05).Besides,PFM showed a lower ADC of CP than the ADCs of CP in CVM,CAP and MCM(P<0.05),and showed a lower ADC of lysine than that in CAP as well as a lower ADC of threonine than those in CAP and CVM(P<0.05).Overall,this study showed the advantage of CVM and CAP among the seven protein sources on the digestibility of feed available in hybrid grouper.