壳聚糖复合物对草鱼种生长性能的影响

将均重132g草鱼种540尾随机分成3个处理（每处理3个重复）。分别饲喂含壳聚糖复合物（以壳聚糖为主要活性成分）0、300g／T、500g／T的三种饲料,进行70天网箱养殖试验。结果表明：草鱼鱼种饲料中添加壳聚糖复合物500g／T后,增重率显著提高（P〈0．05）,饵料系数显著降低（P〈0．05）,对肥满度和成活率没有显著影响（P〈0．05）,对草鱼过氧化氢酶和谷草转氨酶都没有显著影响（P〉0．05）：300g／T壳聚糖复合物添加后,丙二醛的量显著提高,谷丙转氨酶活性显著下降（P〈0．05）,但500g／T添加组丙二醛的量和谷丙转氨酶的活性与对照组无显著差异（P〉0．05）。建议壳聚糖复合物在草鱼中的适宜添加量为500g／T。     

饲料中菜粕和棉粕的不同配比对异育银鲫生长性能、血浆生化指标和棉酚残留的影响

为考察不同菜粕和棉粕的水平组合对异育银鲫生长、饲料利用、血浆指标和棉酚残留的影响,配制了菜粕∶棉粕(菜粕与棉粕之和为60%)分别为5∶0、4∶1、3∶2、2∶3、1∶4和0∶5的6组试验饲料,投喂平均体重为5.6 g的异育银鲫8周。结果表明,随着饲料中棉粕含量升高和菜粕含量减少,异育银鲫的增重率、饲料效率、特定生长率呈现先上升后下降趋势,其中菜粕∶棉粕为3∶2组的鱼生长最佳,增重率和饲料系数分别为505.6%和1.33,具有最高的肥满度和最低肝体比;菜粕∶棉粕为5∶0组的鱼生长最差,增重率和饲料系数分别为430.1%和1.52,具有最低的肥满度和最高的肝体比。各组成活率,肌肉水分、粗蛋白、粗脂肪和粗灰分含量没有显著差异(P＞0.05)。菜粕∶棉粕为5∶0组鱼的血浆谷草转氨酶(AST)和谷丙转氨酶(ALT)活力相对于菜粕∶棉粕分别为3∶2和2∶3组显著增加(P＜0.05);菜粕∶棉粕为3∶2组鱼的血浆碱性磷酸酶活力在各组中最高(P＜0.05);血浆中总蛋白在各组间差异不明显(P＞0.05)。对异育银鲫肌肉和肝脏分析发现,游离棉酚含量随着饲料中棉粕含量的升高而升高(P＜0.05)。本研究表明,在配方中菜粕和棉粕总量为60%的情况下,菜粕∶棉粕为3∶2时异育银鲫的生长性能最佳,具有最高的增重率和最低的饲料系数,过高的菜粕或棉粕均会降低鱼体的生长性能,使鱼体血浆ALT和AST活力升高。     

丙氨酰-谷氨酰胺对德国镜鲤幼鱼（CyprinuscarpioL11）血清生化指标及体组成的影响

选用270尾初始体重（12．97±0．18）g的德国镜鲤幼鱼,随机分为6组,每组3个重复,每个重复15尾。I组为对照组,饲喂基础日粮,Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ组为试验组,分别饲喂在基础日粮中添加丙氨酰-谷氨酰胺（Aln—Gin）0．25,0．5,0．75,1．0和1．5％的13粮,试验期为12周,观察Ain—Gin对镜鲤血清生化指标及营养组成的影响。结果显示：与对照组相比,各试验组血清总蛋白和球蛋白含量显著升高（P〈0．05）;添加高剂量Aln—Gin（1．5％）试验组血清白蛋白显著提高（P〈0．05）;各组的血清谷丙转氨酶、谷草转氨酶及碱性磷酸酶活性差异不显著;各试验组全鱼粗蛋白质含量升高,其中Ⅳ、Ⅴ和Ⅵ组显著升高（P〈0．05）;各组的粗水分、粗脂肪和灰分含量差异不显著。结果表明,日粮中添加一定量的Aln—Gin能够显著促进鲤鱼幼鱼营养代谢,提高全鱼蛋白含量。     

丙氨酰-谷氨酰胺对德国镜鲤幼鱼(Cyprinus carpio L.)血清生化指标及体组成的影响

选用270尾初始体重（12．97±0．18）g的德国镜鲤幼鱼,随机分为6组,每组3个重复,每个重复15尾。I组为对照组,饲喂基础日粮,Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ组为试验组,分别饲喂在基础日粮中添加丙氨酰-谷氨酰胺（Aln—Gin）0．25,0．5,0．75,1．0和1．5％的13粮,试验期为12周,观察Ain—Gin对镜鲤血清生化指标及营养组成的影响。结果显示：与对照组相比,各试验组血清总蛋白和球蛋白含量显著升高（P〈0．05）;添加高剂量Aln—Gin（1．5％）试验组血清白蛋白显著提高（P〈0．05）;各组的血清谷丙转氨酶、谷草转氨酶及碱性磷酸酶活性差异不显著;各试验组全鱼粗蛋白质含量升高,其中Ⅳ、Ⅴ和Ⅵ组显著升高（P〈0．05）;各组的粗水分、粗脂肪和灰分含量差异不显著。结果表明,日粮中添加一定量的Aln—Gin能够显著促进鲤鱼幼鱼营养代谢,提高全鱼蛋白含量。     

复合益生菌对中华鳖生长及血液生化指标的影响

为了探究饲料中添加复合益生菌对中华鳖（Trionys sinensis）生长及血液生化指标的影响,在体重为（227．47±14．42）g 的中华鳖基础饲料中分别添加复合益生菌0 mg／kg（对照组Ⅰ）、500 mg／kg（试验组Ⅱ）、1000 mg／kg （试验组Ⅲ）和2000 mg／kg（试验组Ⅳ）;试验共分4组,每组3个重复,在（30±2）℃温室中进行,投喂140 d。结果表明,各试验组均能显著提高中华鳖增重率、特定生长率和存活率（P ＜0．05）,降低饵料系数（P ＜0．05）,且Ⅲ组增重率、特定生长率和存活率最高,饵料系数最低,增重率比Ⅰ组提高了29．25％;各试验组均能显著提高中华鳖脂肪酶、淀粉酶和胰蛋白酶活力（P ＜0．05）,当添加量为2000 mg／kg 时,淀粉酶活力有所下降（P ＜0．05）;与对照组相比,各试验组均能显著降低血清中总胆固醇、尿素氮水平和谷丙转氨酶活力（P ＜0．05）,提高甘油三酯含量（P ＜0．05）,而血清中总蛋白、球蛋白、白蛋白、血糖、丙二醛含量和谷草转氨酶活力差异不显著（P ＞0．05）;各试验组均能显著提高血清中溶菌酶、谷胱甘肽过氧化物酶和超氧化物歧化酶活力（P ＜0．05）,但过量添加（2000 mg／kg）会降低其活力（P ＞0．05）。在基础饲料中适量添加复合益生菌能促进中华鳖的生长、降低饵料系数、提高肠道消化酶活性,同时还具有提高非特异性免疫和抗氧化功能,最适添加量为 1000～2000 mg／kg。     

三种不同养殖模式对草鱼肝胰脏结构与功能的影响

以全程摄食颗粒饲料、颗粒饲料+苏丹草和浮萍、苏丹草和浮萍三种不同养殖模式的草鱼(初始体重为0.25~0.30 g;终末体重为50~100 g)为实验对象,对其血液生化指标、肝胰脏指数、肝胰脏脂肪含量、肝胰脏组织学结构、肝胰脏超微结构等指标进行了测定与观察。结果表明:摄食饲料+苏丹草和浮萍组的草鱼肝脏组织、细胞结构均较为正常,血清中谷丙转氨酶和谷草转氨酶活性最低,白蛋白含量及碱性磷酸酶和乳酸脱氢酶活性最高;单独摄食苏丹草和浮萍组的草鱼肝脏组织和细胞形态正常,但白蛋白含量较低,个体消瘦;单独摄食饲料组的草鱼,脂肪在肝脏细胞中大量蓄积,致使肝脏细胞坏死,肝脏功能下降。     

膨化与非膨化饲料对大规格草鱼生长、体成分及部分生理生化指标影响

以商业配方为基础,配制膨化饲料和非膨化饲料饲喂初始体重（394.96±13.21g）草鱼（Ctenopharynodon idellus）120天,旨在对比这两种饲料对其生长、体成分及部分生理生化指标的影响。养殖试验在水库网箱（2m×2m×2m）中进行,每个处理组3个重复,每个重复30尾鱼。实验结果表明,与非膨化料组相比,膨化饲料组草鱼成活率和增重率显著提高（P＜0.05）,饵料系数显著降低（P＜0.05）,增重成本显著降低（P＜0.05）;肥满度、肝体比、脏体比和肠体比显著升高（P＜0.05）;鱼体血清血糖、甘油三酯、总固醇和过氧化氢酶显著升高（P＜0.05）;胰蛋白酶、淀粉酶和脂肪酶显著降低（P＜0.05）;肝脏谷丙转氨酶（GPT）显著升高,谷草转氨酶（GOT）显著降低（P＜0.05）;鱼体成分中水分和灰分无显著差异（P>0.05）,粗脂肪显著升高、粗蛋白显著降低（P＜0.05）。综上所述,与非膨化饲料相比,饲喂膨化饲料可使大规格草鱼生长性能和养殖效益提高,但会鱼体肥满度和粗脂肪含量提高。     

膨化与非膨化饲料对草鱼生长及部分生理生化指标影响

为了研究不同饲料对草鱼生长、体成分及部分生理生化指标的影响,在水温20~29℃下,将初始体重(394.96±13.21)g的草鱼(Ctenopharynodon idellus)养殖在水库网箱(2 m×2 m×2 m)中,投喂以商业配方为基础配制的膨化和非膨化饲料,养殖时间120 d,每个处理组3个重复,每个重复30尾鱼。结果显示,膨化饲料组草鱼成活率和增重率、肥满度、肝体比、脏体比和肠体比显著高于非膨化料组相,饵料系数和增重成本显著降低(P0.05);鱼体血清血糖、甘油三酯含量和过氧化氢酶、肝脏谷丙转氨酶活性显著升高(P0.05);胰蛋白酶、淀粉酶、脂肪酶、肝脏谷草转氨酶活性显著降低(P0.05)。膨化饲料组草鱼水分和灰分无显著差异(P0.05),但粗脂肪显著升高、粗蛋白显著降低(P0.05)。研究表明,与非膨化饲料相比,饲喂膨化饲料可提高大规格草鱼生长性能和养殖效益,但会导致鱼体肥满度和粗脂肪含量增加。     

恩诺沙星对鲫鱼血液生理生化指标的影响

采用日立7020型自动生化分析仪对投喂不同剂量恩诺沙星的鲫（Carassiusauratus）进行血浆生理生化指标的测定,实验数据用SPSS11．5统计软件进行方差分析和多重比较。实验结果表明,恩诺沙星引起鲫血清中Na＋、K＋浓度均有所升高,Na＋浓度升高较为显著;对Ca2＋浓度影响不显著。实验鲫鱼各组间的总蛋白、白蛋白、球蛋白、谷丙转氨酶、谷草转氨酶、碱性磷酸酶、乳酸脱氢酶、尿素氮、肌酐等生化指标均无明显差异。     

不同饲料蛋白水平对华鲮幼鱼生长的影响

用3种不同蛋白含量（26．1％、38．3％、52．7％）的配合饲料投喂华鲮幼鱼153d，随着饲料蛋白质含量从26．1％上升到52．7％，平均日增重从0．08g／d上升到0．33g／d，3组之间的日增重和体重有显著差异（P〈0．05）；饲料系数从4．82下降为2．18，3组之间的饲料系数有显著差异（P〈0．05）。3种不同蛋白含量（26．1％、38．3％、52．7％）的配合饲料的成本分别为2．53元／kg、3．75元／kg、5．57元／kg；鱼体每kg增重所需饲料成本分别为12．19元、10．39元、12，14元／。初步认为蛋白含量为38．3％的配合饲料更适合华鲮幼鱼的生产需要。     

复合蛋白源替代鱼粉对杂交鳢生长、体组成与生化指标的影响

为研究复合蛋白源替代鱼粉对杂交鳢生长、体组成、抗氧化与生化指标的影响,在基础饲料中用复合蛋白源(由棉粕+菜粕+蚕蛹+桑叶发酵而成)分别替代饲料中0%、12%、24%、36%和48%的鱼粉,配制成5种等氮等脂(含粗蛋白CP 42%,粗脂肪EE 8.5%)的实验饲料,在室内循环水族箱内饲喂杂交鳢(初始体质量22 g)8周。结果显示,当复合蛋白源替代鱼粉水平大于12%时,杂交鳢的终末体质量(FBW)和特定生长率(SGR)显著降低,在48%替代水平达到最低。36%和48%替代水平蛋白质效率(PER)显著降低,而饲料系数(FCR)显著升高。各实验组摄食率(FR)无显著差异。替代水平组全鱼粗脂肪含量以及脏体比(VSI)和肠脂比(IPF)显著降低,而水分含量显著增加。随替代水平的增加,胰蛋白酶活性显著降低,而肠脂肪酶活性显著升高。替代水平24%以上肝脏谷丙转氨酶(GPT)、过氧化氢酶(CAT)和超氧化物歧化酶(SOD)活性显著升高。替代水平12%以上血清中总胆固醇(CHO)含量显著降低,而替代水平36%以上血糖(GLU)含量会显著降低。各实验组血清甘油三酯(TC)、总蛋白(TP)和白蛋白(ALB)含量无显著变化。研究表明,复合蛋白源替代12%鱼粉不会影响杂交鳢的生长,而高水平替代会抑制杂交鳢的生长,但可以改善杂交鳢机体糖脂代谢,提高机体的抗氧化能力。     

Replacement of fish meal with rapeseed protein concentrate in diets fed to wels catfish (Silurus glanis L.)

The potential of rapeseed protein concentrate as fish meal alternative in diets for wels catfish (initial average weight 86.5 ± 1.9 g) was evaluated. Sixteen fish were stocked into each of 12 experimental tanks being part of a freshwater recirculation system. Fish were organized in triplicate groups and received isonitrogenous (603 ± 3 g CP kg^?1) and isocaloric (23.0 ± 0.3 kJ g^?1) experimental diets with 0%, 25%, 50% and 75% of fish meal replaced with rapeseed protein concentrate (710 g CP kg^?1). At the end of the 63‐day feeding period, weight gain, standard growth rate, feed intake, feed conversion ratio and protein efficiency showed no significant difference between control group and fish fed on diets with 25% reduced fish meal content by inclusion of rapeseed protein concentrate. Higher dietary fish meal replacement negatively affected diet quality and palatability resulting in reduced feed intake, feed efficiencies and fish performance. However, blood serum values of triglycerides, glucose and protein were not significantly different between treatment groups, still indicating a favourable nutrient supply from all experimental diets.     

用两种粪便收集方法测定草鱼对九种饲料原料的表观消化率

在(21.5±1.0)℃水温下,以Cr2O3为指示物采用自排法和挤压法分别收集平均体重为65 g草鱼的粪便,测定草鱼对棉籽粕、花生粕、双低菜籽粕、秘鲁鱼粉、菜籽粕、小麦次粉、米糠、大豆粕和肉骨粉9种饲料原料主要营养成分的表观消化率。试验饲料以70%基础饲料和30%的待测饲料原料组成。结果表明:(1)草鱼对肉骨粉、秘鲁鱼粉、棉籽粕、大豆粕的干物质表观消化率较高,分别为60.69%、59.07%、61.08%、57.99%;(2)用自排法和挤压法测定草鱼对饲料原料的表观消化率时,干物质表观消化率有差异,而饲料原料粗蛋白质表观消化率基本保持一致;(3)草鱼对各种饲料原料的蛋白质表观消化率与氨基酸表观消化率的趋势基本一致。     

饲料中豆粕替代鱼粉比例对牙鲆生长性能及生化指标的影响

以鱼粉和豆粕分别为主要动物性和植物性蛋白源,研究饲料中不同豆粕替代鱼粉比例对牙鲆幼鱼生长性能和生化指标的影响。设计4∶1、3∶1、2∶1和1∶1四种不同动植物蛋白比的等氮等脂饲料配方,按配方制备试验饲料,分别表示为D1、D2、D3和D4。牙鲆幼鱼随机分配到12个设有循环水系统的玻璃钢桶内(900L),每3桶鱼饲喂一种饲料,每天投喂饲料2次,每次达到表观饱食,饲喂期为56d。以增重率(WGR)、饵料系数(FCR)、特定生长率(SGR)、蛋白质效率(PER)、肝体指数(HSI)、肥满度(CF)、鱼体成分和饲料成本为依据,综合评价饲料中不同比例的豆粕替代鱼粉比例对牙鲆的饲养效果。通过测定尿素氮(BUN)、谷丙转氨酶(GPT)、谷草转氨酶(GOT)、游离脂肪酸(FFA)、总蛋白(TP)、甘油三酯(TG)、胆固醇(CHO)、高密度脂蛋白胆固醇(HDL-C)及低密度脂蛋白胆固醇(LDL-C)等生化指标,研究饲料中不同豆粕替代鱼粉比例对牙鲆蛋白质代谢和脂肪代谢的影响。随豆粕比例的增加,WGR、PER和SGR逐渐降低,FCR逐渐增加,当饲料中豆粕比例在24%以上时差异显著(P<0.05);HSI逐渐增加,且D1组显著低于其他...     

凡纳滨对虾饲料中菜籽粕替代鱼粉适宜比例的研究

以饲料中添加36％鱼粉作为对照组,用菜籽粕分别替代饲料配方中10％～50％的鱼粉,配成5种等氮等能试验饲料,饲喂凡纳滨对虾,研究不同替代比例对凡纳滨对虾生长性能和虾体氨基酸组成的影响.试验结果表明,饲养56d后,随着菜籽粕替代鱼粉比例的增加,对虾的质量增加率下降,但仅50％替代比例试验组的质量增加率为1542.74％,...     

Total fish meal replacement with rapeseed protein concentrate in diets fed to rainbow trout (Oncorhynchus mykiss Walbaum)

The potential of rapeseed protein concentrate as fish meal alternative in diets for rainbow trout (initial average weight 37.8?±?1.4?g) was evaluated. Nine experimental tanks of a freshwater flow-through system were stocked with 12 fish each. Triplicate groups of fish received isonitrogenous (47.9?±?0.5% CP) and isoenergetic (22.4?±?0.2?kJ?g^?1) experimental diets with 0, 66 and 100% of fish meal substituted with rapeseed protein concentrate (71.2% CP), thereby providing 0, 29 and 43% of dietary protein. As the amino acid profile of rapeseed protein concentrate was comparable to fish meal, there was no need to supplement experimental diets with synthetic amino acids. At the end of the 84?days of feeding period, fish growth performance, feed intake and feed efficiencies were not compromised, when 100% of fish meal in the control diet was replaced with rapeseed protein concentrate, revealing a SGR of 1.19 or 1.10, a FCR of 1.09 or 1.18 and a feed intake of 78.5 or 74.7?g in fish fed on the control diet or fed the diet devoid of fish meal, respectively. Intestinal morphology did not reveal any histological abnormalities in all dietary groups. Blood parameters including haematocrit and haemoglobin as well as glucose, triglycerides and total protein in the plasma were not different between treatment groups. Thus, the rapeseed protein concentrate tested here has great potential as an alternative to fish meal in rainbow trout diets.     

The Effect of Different Levels of Krill Meal Supplementation of Soybean-based Diets on Feed Intake, Digestibility, and Chemical Composition of Juvenile Nile Tilapia Oreochromis niloticus, L

Abstract— The main objective of this study was to determine the effect of different levels of krill meal (KM) as a feed attractant in juvenile Nile tilapia fed soybean (SBM) diets on growth performance, feed utilization, and body composition. Fish of an initial average weight 0.8 × 0.01g were stocked in 18 glass aquaria (80 L each) at a rate of 25 fish per aquarium. Fish meal (FM 20% of the diet) was used as the sole source of animal protein in the control (Diet 1). Diets 2 to 6 had (SBM) protein with various levels of krill meal (0.0,1.5,3.0,4.5, and 6.0%, diets 2-6 respectively). Test diets were fed to satiation to triplicate groups of Nile tilapia four times daily for 20 wk. Fish fed krill meal supplemented diets had significantly ( P < 0.05) better growth performance compared with fish fed the unsupplemented and FM control diets. The krill meal increased growth of Nile tilapia by 31.9% compared to control diets (average Anal wet weight, 14.15 × 0.95 g and 10.72 × 0.2 g, respectively). Moreover, weight gains were not significantly different for fish fed diets with different levels of krill meal. Feed utilization parameters such as feed intake, feed conversion ratio, protein efficiency ratio differed significantly for fish fed krill meal diets compared with control. Digestibility of nutrient and energy of diets increased with increasing levels of krii meal. The incorporation of krill meal in diets significantly affected the protein, fat, ash, and energy of whole body composition. These results suggest that supplementation of krill meal at 1.5% in the diets of Nile tilapia as attractant or stimulant may lead to increased feed intake, growth performance, and feed utilization. Soybean meal can completely replace fishmeal in diets for juvenile tilapia.     

Dietary substitution of soy and rapeseed protein concentrates for fish meal, and their effects on growth and nutrient utilization in gilthead seabream Sparus aurata L.

Soy and rapeseed protein concentrates (SPC and RPC) were evaluated as fish meal substitutes in gilthead seabream Sparus aurata L. diets. The protein concentrates were used to replace 30%, 60% and 100% fish meal, and effects on feed intake, weight gain and feed gain ratio were determined in a 56‐day growth trial. Some groups were then grown beyond 56 days, until all reached an average weight of 50 g. A comparison of body composition at 50 g showed no significant differences in protein and ash content among all fish, while lipid and energy contents were different. The 100% RPC and 60% and 100% SPC replacement diets had lower body lipid and energy contents compared with those of the control diet. Feed intake and weight gains were inversely related to inclusion levels of plant proteins. Feed intake dropped to 52–72% of that of the control treatment and weight gain to 46–61%. Energy retention followed this same trend, decreasing from ERV values of 53 to 44 with an increase in dietary plant protein content. With the exception of 100% SPC substitution (PPV = 35), protein retention among treatments was similar (PPV = 37–39). These results suggest that both SPC and RPC may be promising protein sources for inclusion in seabream diets. The relative palatability of these plant proteins could be a limiting factor in their use.     

The effects of partial replacement of white fish meal by poultry by-product meal and addition of bile acid in feed on growth,digestibility, and serum enzyme activities of the Chinese soft-shelled turtle

Four isonitrogenous experimental diets were used to test the effects of replacing white fish meal with poultry by-product meal (PBM) and adding bile acid (BA) in a commercial feed for the Chinese soft-shelled turtle Pelodiscus sinensis with 9 replicates and 6 turtles in a 60-day study. Diet 1 contained white fish meal as a main protein source (100 %). Diet 2 contained white fish meal (60.8 %) and PBM (39.2 %) as the protein source. Diets 3 and 4 comprised the addition of 1 g kg^?1 of bile acid to diets 1 and 2, respectively. Compared to diet 1, the glutamic-pyruvic transaminase level in the turtles fed with diet 2 were not augmented significantly as was the case for glutamic oxalacetic transaminase level. The relative growth rate and specific growth rate in diet 2 were the same as those of diet 1. The apparent digestibility coefficient for lipid (ADCL) tended to decrease after that white fish meal was partially replaced. The values of weight gain, relative growth rate, feeding rate, specific growth rate, apparent digestibility coefficient for dry matter, ADCL and apparent digestibility coefficient for protein (ADCP) of the turtles on diet 4 (1 g kg^?1 bile acid added in diet 2) increased by 28.1, 28.8, 10.1, 20.6, 1.7, 0.6 and 0.3 %, respectively, compared to those on diet 2. The combined effects of bile acid and PBM on the growth of turtles was even more effective than the whole white fish meal diet, by increasing feeding rate 7.4 %; it decreased the amounts of crude lipids (by 22.8 %), glutamic-pyruvic transaminase (by 1.9 %), and alkaline phosphatase (by 3.9 %). Therefore, replacing 39.2 % of white fish meal with PBM and adding BA was feasible in turtle feed.     

配合饲料和活饵料对刀鲚幼鱼生长、存活和消化酶、非特异性免疫酶、代谢酶及抗氧化酶活性的影响

为了解配合饲料和活饵料对刀鲚幼鱼生长、存活和几种酶活性的影响,对用配合饲料和活饵料喂养178 d的刀鲚幼鱼的生长、存活和消化酶、非特异性免疫酶、代谢酶以及抗氧化酶活性进行分析与比较。结果显示,配合饲料组的最终体长、体质量、成活率、鱼体肥满度和肝指数(分别为125.17 mm、6.27 g、65.73%、0.31 g/cm3和1.4%)显著低于活饵料组(分别为150.66 mm、12.39 g、85.59%、0.36 g/cm3和1.9%),两组鱼的肠长和体长比无显著差异(分别为25.3%和23.6%);两组鱼的肝脏中均未检测出蛋白酶,配合饲料组的幽门盲囊中碱性蛋白酶的活性(43.49 U/mg prot)显著低于活饵料组(86.37 U/mg prot),但两处理组鱼胃中酸性蛋白酶和肠道中碱性蛋白酶的活性均没有显著差异;配合饲料组肠道和幽门盲囊中的淀粉酶活性(分别为196.63和575.93 U/g prot)显著低于活饵料组(分别为928.91和1 755.90U/g prot),但两处理组鱼肝脏和胃中的淀粉酶活性没有显著差异;两处理组鱼的肝脏和胃中均未检测出脂肪酶,配合饲料组的肠道脂肪酶活性(23.55 U/g prot)显著高于活饵料组(14.39 U/g prot),但两处理组幽门盲囊中脂肪酶活性(分别为17.90和13.23 U/g prot)没有显著差异;配合饲料组的肝脏碱性磷酸酶(AKP)活性(103.44 U/g prot)显著高于活饵料组(58.20 U/g prot),而配合饲料组的肝脏谷草转氨酶(AST/GOT)活性(20.38 U/g prot)显著低于活饵料组(32.51 U/g prot);肝脏中其余被检测的5种酶活性(ACP、ALT/GPT、SOD、GSH-PX和CAT)和血清中被检测的代谢酶(ALT/GPT和AST/GOT)及抗氧化酶(SOD和GSH-PX)活性在两处理组之间均没有显著差异。研究表明,刀鲚能摄食配合饲料,配合饲料组和活饵料组的大多数消化酶、非特异性免疫酶、代谢酶及抗氧化酶活性,没有显著性差异,但配合饲料组的刀鲚生长和成活率远低于活饵料组,建议今后研发和改进刀鲚配合饲料,逐步替代活饵料。