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1.
家蝇蛆粉替代鱼粉对凡纳滨对虾生长、抗氧化和免疫指标的影响 总被引：3，自引：0，他引：3
设计6种等氮等能的试验饲料,以评价不同比例的家蝇蛆粉替代鱼粉对凡纳滨对虾幼虾生长性能、抗氧化以及非特异性免疫指标的影响。选用960尾体质量为(0.56±0.03)g的凡纳滨对虾随机分为6组,分别投喂用家蝇蛆粉替代鱼粉的6种饲料,替代比例(等蛋白替代)分别为0、20%、40%、60%、80%和100%,记为G0、G20、G40、G60、G80和G100。45 d的养殖试验结果显示,G20~G60组凡纳滨对虾的增重率(WGR)与对照组相比差异不显著(P>0.05),G80、G100组WGR显著降低(P<0.05)。除G40组外,各替代组凡纳滨对虾的特定生长率(SGR)均显著低于对照组(P<0.05)。G100组摄食量(FI)显著低于其它各组(P<0.05)。当替代水平不超过60%时,家蝇蛆粉对凡纳滨对虾的饲料系数(FCR)、蛋白质效率(PER)、蛋白质沉积率(PPV)和肝胰指数(HSI)影响不显著(P>0.05);随替代水平的继续增加,FCR和HSI显著升高,PER和PPV显著降低(P<0.05)。替代组对虾肥满度(CF)和存活率(SR)均不同程度的高于对照组,但差异不显著(P>0.05)。随家蝇蛆粉替代水平的增加,全虾粗蛋白、钙(Ca)和总磷(P)含量显著升高(P<0.05),粗脂肪含量显著降低(P<0.05),干物质和灰分含量差异不显著(P>0.05)。各替代组对虾血清和肝胰腺超氧化物歧化酶(SOD)活性、血清丙二醛(MDA)含量与对照组相比差异不显著(P>0.05),G80和G100组肝胰腺MDA含量显著高于对照组(P<0.05)。血清酚氧化酶(PO)活性随家蝇蛆粉替代量的增加而显著降低,其中G20组显著高于其它各组(P<0.05)。肝胰腺碱性磷酸酶(AKP)活性随添加量的增加而显著降低(P<0.05)。家蝇蛆粉替代鱼粉对凡纳滨对虾的血细胞总数(THC)、血清一氧化氮(NO)含量、AKP活性和肝胰腺PO活性、NO含量影响不显著(P>0.05)。 相似文献
2.
为探明使用经氨基酸平衡后的酵母提取物替代鱼粉对凡纳滨对虾消化机能的影响,分别用酵母提取物替代饲料中15 %(B)、30 %(C)、45 %(D)、60 %(E)和100 %(F)的鱼粉,配制6种等氮、等能的试验饲料投喂凡纳滨对虾(6.328±0.630 g),以鱼粉含量为25 %的饲料为对照组(A)。饲养7 d后开始收集粪便,测定凡纳滨对虾对饲料的表观消化率。养殖试验结束后,研究酵母提取物替代鱼粉对凡纳滨对虾消化酶的影响。试验结果:凡纳滨对虾对各组饲料均具有较高的干物质表观消化率(77.96 %~81.21 %)和粗蛋白表观消化率(87.19 %~92.82 %)；各替代组饲料的表观消化率均高于对照组,其中C、E和F组的干物质表观消化率显著高于对照组(P<0.05),粗蛋白表观消化率随酵母提取物用量的增加而显著增加(P<0.05)；凡纳滨对虾肝胰腺中类胰蛋白酶的活性随饲料中酵母提取物用量的增加而显著升高(P<0.05),脂肪酶的活性随饲料中酵母提取物用量的增加而显著降低(P<0.05)；肝胰腺中淀粉酶活性最高的为C组；各替代组凡纳滨对虾的肠胰蛋白酶活性均高于对照组。结果表明,以氨基酸平衡酵母提取物替代饲料中的鱼粉可以提高凡纳滨对虾对饲料的消化机能。 相似文献
3.
家蝇蛆粉替代鱼粉对凡纳滨对虾消化酶、转氨酶活性和肝胰腺组织结构的影响 总被引：2，自引：0，他引：2
试验采用28%鱼粉饲料为基础,以家蝇蛆粉分别替代20%、40%、60%、80%和100%的鱼粉配制5种试验饲料,投喂初始体质量为0.56 g的凡纳滨对虾（Litopenaeus vannamei）45 d,研究了蝇蛆粉对凡纳滨对虾消化酶、转氨酶活性和肝胰腺结构的影响。结果显示,替代组对虾肝胰腺、胃和肠道消化酶活性与对照组相比差异不显著（P＞0.05）。替代组对虾肝胰腺谷丙转氨酶（ALT）、谷草转氨酶（AST）活性均低于对照组,但差异不显著（P＞0.05）;随着替代水平的增加,血清ALT活性在100%替代组、AST活性在60%-100%替代组显著降低（P＜0.05）。与对照组相比,20%-60%替代组肝胰腺上皮细胞中空泡增多,并且出现未知物质;替代水平高于60%时肝胰腺结构损伤严重。结果表明,蝇蛆粉替代水平在60%以下时,对凡纳滨对虾消化酶和转氨酶活性没有显著影响,对肝胰腺结构损伤不明显。 相似文献
4.
为探讨南极磷虾粉在对虾养殖中的应用效果,在对虾全价配合饲料中分别添加5%(S5组)、10%(S10组)、15%(S15组)和20%(S20组)的南极磷虾粉,配制成4种实验饲料,以全价配合饲料为对照(S0组),饲养体质量为(7.27±0.88) g的凡纳滨对虾(Litopenaeus vannamei) 35 d,研究了其对凡纳滨对虾生长、体组分及体色的影响。结果显示,饲料中添加南极磷虾粉：1)可显著提高对虾成活率(P<0.05),添加比例为15%时,终末体质量(FBW)、体质量增长率(WGR)和特定生长率(SGR)均显著高于S0组(P<0.05);2)逐渐提高粗脂肪含量,且S10、S15和S20组显著高于S0组(P<0.05),而头胸甲亮度值(L*)及身体处黄色值(b*)逐渐降低,均显著低于S0组(P<0.05);3)显著提高肝胰腺和甲壳中虾青素的含量,且与体色相关的LVPBP75基因的表达水平与南极磷虾粉添加比例呈正相关。研究结果初步表明,饲料中添加南极磷虾粉能够促进对虾生长,提高其体内虾青素含量和肝胰腺中LVPBP... 相似文献
5.
玉米蛋白粉替代部分鱼粉对凡纳滨对虾摄食量、生长和肌肉成分的影响 总被引：4，自引：2，他引：2
以凡纳滨对虾幼虾[体重(0.013 6±0.001 0)g]为试验对象,以鱼粉、豆粕、肉粉和花生粕为蛋白源配制对照饲料,用玉米蛋白粉替代部分鱼粉配制3种与对照饲料等氮、等能的试验饲料,其中玉米蛋白粉用量为5%、10%和15%,分别替代鱼粉8.6%、17.2%和25.8%,饲喂凡纳滨对虾45 d,研究玉米蛋白粉替代部分鱼粉对凡纳滨对虾摄食量、生长和肌肉成分的影响.结果表明,(1)试验饲料中玉米蛋白粉用量不超过10%,对凡纳滨对虾日均摄食量没有显著影响(P＞0.05).(2)5%玉米蛋白粉组的生长效果最好,其相对增重率、增长率和饲料系数分别为2 542.8%、155.1%和1.58,前者显著高于对照组(P＜0.05),后两者与对照组没有显著差异(P＞0.05);10%玉米蛋白粉组虾的生长和饲料系数与对照组没有显著差异(P＞0.05);15%组虾的生长显著低于对照组(P＜0.05).(3)玉米蛋白粉替代鱼粉对对虾肌肉的水分、粗蛋白、粗脂肪和粗灰分含量影响不显著(P＞0.05);对对虾肌肉氨基酸总量、必需氨基酸总量和呈味氨基酸含量以及必需氨基酸指数的影响也不显著(P＞0.05).(4)玉米蛋白粉在凡纳滨对虾饲料中的适宜用量为10%. 相似文献
6.
试验旨在研究酶解豆粕蛋白替代部分鱼粉对凡纳滨对虾(Litopenaeus vannamei)生长、饲料利用及消化酶的影响。选用初始体质量为(1.10±0.02)g的健康对虾,随机分成5组,饲养在0.5 m~3的玻璃纤维钢桶中,分别投喂酶解豆粕蛋白(0、7.40%、14.80%、22.20%和30.20%)替代基础配方中鱼粉(0、25%、50%、75%和100%)制成5组等氮等脂的饲料,试验时间为56 d。试验结果显示投喂25%和50%的酶解豆粕蛋白替代鱼粉的凡纳滨对虾增重率、特定生长率、饲料系数和蛋白质效率等无差异统计学意义(P0.05),替代25%组和替代50%组凡纳滨对虾肝胰腺的蛋白酶和淀粉酶活性显著高于对照组(P0.05)。研究结果表明,凡纳滨对虾饲料中酶解豆粕蛋白替代鱼粉的比例不宜超过50%。 相似文献
7.
家蝇蛆粉替代鱼粉对凡纳滨对虾肌肉营养成分、氨基酸和肌苷酸含量的影响 总被引：1，自引：0，他引：1
采用等蛋白替代方式,以家蝇蛆粉(housefly maggot meal)分别替代饲料中0、20%、40%、60%、80%和100%的鱼粉,配制6种等氮等能的饲料,饲养初始体质量(0.56±0.03)g的凡纳滨对虾(Litopenaeus vannamei),相应记为G0、G20、G40、G60、G80和G100实验组。养殖45 d后测定对虾肌肉的常规成分和氨基酸、肌苷酸含量,研究家蝇蛆粉对凡纳滨对虾肌肉品质的影响。结果显示,凡纳滨对虾肌肉粗蛋白和灰分含量随家蝇蛆粉替代水平的增加而升高,其中G100组粗蛋白含量和G80、G100组灰分含量显著高于G0组(P<0.05);水分和粗脂肪含量各组之间差异不显著。各组肌肉游离氨基酸中谷氨酸、丙氨酸等鲜味氨基酸和游离鲜味氨基酸总量之间无显著性差异;除G40组外,G20-G100组游离必需氨基酸总量显著高于G0组(P<0.05);与G0组相比,替代组游离精氨酸含量显著增加(P<0.05),游离赖氨酸含量随替代水平的增加而显著降低(P<0.05);G20组游离氨基酸总量显著高于G0组(P<0.05),其他各组之间差异不显著。替代组肌肉结合氨基酸中天冬氨酸、谷氨酸、甘氨酸和丙氨酸等鲜味氨基酸、必需氨基酸和氨基酸总量与G0组相比差异均不显著。G20-G80组肌肉肌苷酸含量与G0组相比差异不显著,G100组显著升高(P<0.05)。结果表明,当家蝇蛆粉替代鱼粉水平不超过60%时,除凡纳滨对虾肌肉游离精氨酸含量显著升高外,对肌肉常规营养成分组成和必需氨基酸、鲜味氨基酸和肌苷酸含量无显著性影响。 相似文献
8.
以凡纳滨对虾幼虾［体重(0.013 6±0.001 0) g］为试验对象,以鱼粉、豆粕、肉粉和花生粕为蛋白源配制对照饲料,用玉米蛋白粉替代部分鱼粉配制3种与对照饲料等氮、等能的试验饲料,其中玉米蛋白粉用量为5%、10%和15%,分别替代鱼粉8.6%、17.2%和25.8%,饲喂凡纳滨对虾45 d,研究玉米蛋白粉替代部分鱼粉对凡纳滨对虾摄食量、生长和肌肉成分的影响。结果表明,（1）试验饲料中玉米蛋白粉用量不超过10%,对凡纳滨对虾日均摄食量没有显著影响（P>0.05）。（2）5%玉米蛋白粉组的生长效果最好,其相对增重率、增长率和饲料系数分别为2 542.8%、155.1%和1.58,前者显著高于对照组（P<0.05）,后两者与对照组没有显著差异（P>0.05）;10%玉米蛋白粉组虾的生长和饲料系数与对照组没有显著差异（P>0.05）;15%组虾的生长显著低于对照组（P<0.05）。（3）玉米蛋白粉替代鱼粉对对虾肌肉的水分、粗蛋白、粗脂肪和粗灰分含量影响不显著（P>0.05）;对对虾肌肉氨基酸总量、必需氨基酸总量和呈味氨基酸含量以及必需氨基酸指数的影响也不显著（P>0.05）。（4）玉米蛋白粉在凡纳滨对虾饲料中的适宜用量为10%。 相似文献
9.
在5000m~2、密度为9.0×10~9尾/hm~2的凡纳滨对虾池塘中,投喂基础饲料和20%蝇蛆蛋白+基础饲料饲养体质量(0.18±1.10~)g的凡纳滨对虾,研究了蝇蛆蛋白对生长性能、非特异性免疫及肌肉成分的影响。150d的饲养结果表明,投喂添加蝇蛆蛋白的饲料时,凡纳滨对虾的增长率(310~.51±11.39)%、相对体质量增加率(6383.33±20.54)%和存活率(64.61±3.47)%显著高于对照组的增长率(287.80±15.6)%、相对体质量增加率(5161.11±32.82)%和存活率(52.89±4.22)%(P0.05),而饲料系数显著低于对照组(P0.05)。饲料中添加20%蝇蛆蛋白显著提高了对虾血清超氧化物歧化酶、碱性磷酸酶、酸性磷酸酶、酚氧化物酶和溶菌酶的活性(P0.05)。饲料中添加20%蝇蛆蛋白显著提高了凡纳滨对虾肌肉中粗蛋白含量、必需氨基酸总量、鲜味氨基酸总量以及必需氨基酸占总氨基酸的比值,而其他体成分差异不明显。 相似文献
10.
酵母水解物对凡纳滨对虾生长、消化酶活性和肠道形态的影响 总被引：1，自引：0，他引：1
本实验旨在研究饲料中添加酵母水解物对凡纳滨对虾(Litopenaeus vannamei)生长性能、血清生化指标、肝胰腺消化酶活性以及肠道形态的影响。酵母水解物添加量分别为0%、1%、3%和5%,配制4种等氮等脂(42.5%粗蛋白和8.5%粗脂肪)的实验饲料。选取初始体重为(1.86±0.02)g的凡纳滨对虾480尾,随机分为4组,每组4个重复,每个重复30尾,进行为期8周的养殖实验。结果表明饲料中添加5%酵母水解物组的增重率(WGR)、特定生长率(SGR)和蛋白质效率(PER)显著高于对照组(P0.05),而该组饲料系数(FCR)最低(P0.05)。对虾全虾粗蛋白含量随饲料中酵母水解物的增加而呈上升趋势,且5%酵母水解物添加组显著高于对照组(P0.05)。添加5%的酵母水解物显著提高了凡纳滨对虾血清总蛋白(TP)和甘油三酯(TG)含量,降低了谷草转氨酶(AST)和谷丙转氨酶(ALT)的活性(P0.05)。各处理组肝胰腺淀粉酶活性和对照组相比差异不显著(P0.05),但3%酵母水解物添加组的胰蛋白酶和脂肪酶活性显著高于对照组(P0.05)。3%酵母水解物添加组的对虾肠道皱襞高度和皱襞宽度显著高于对照组(P0.05),而5%添加组的微绒毛高度显著高于对照组(P0.05)。综上所述,在本实验条件下,饲料中添加3%~5%的酵母水解物能有效改善凡纳滨对虾生长性能、提高饲料利用率、促进消化吸收以及改善肠道形态学指标。 相似文献
11.
不同大豆产品替代鱼粉饲养南美白对虾的试验 总被引：4，自引：0，他引：4
分别采用脱皮豆粕、大豆蛋白、发酵豆粕等大豆产品,等氮替代饲料中10%的鱼粉(对照组鱼粉35%,替代组鱼粉25%),饲养体重为0.06 g南美白对虾(Penaeus vannam eiBoone)一个月,结果表明,对照组(35%鱼粉)幼虾的增重率、成活率均最大,为1316%、97.5%;脱皮豆粕组幼虾的增重率为最低,仅783%;哈姆雷特大豆蛋白、比多福大豆蛋白、富肽蛋白(发酵豆粕)组幼虾增重率为1033%、983%、1050%,均显著高于脱皮豆粕组(P<0.05),但低于对照组(P<0.05);对虾体肌肉成分的分析显示,各组幼虾肌肉在水分、蛋白质含量方面没有显著差异。上述结果表明,大豆蛋白和发酵豆粕均为优于脱皮豆粕的鱼粉替代品。 相似文献
12.
Yi‐Rong Yue Yong‐Jian Liu Li‐Xia Tian Lian Gan Hui‐Jun Yang Gui‐Ying Liang 《Aquaculture Research》2012,43(11):1687-1696
An 8‐week feeding trial was conducted to evaluate the effects of replacing fish meal (FM) with soybean meal (SBM) and peanut meal (PM) on growth, feed utilization, body composition and haemolymph indexes of juvenile white shrimp Litopenaeus vannamei, Boone. Five diets were formulated: a control diet (FM30) containing 30% fish meal and four other diets (FM20, FM15, FM10 and FM5) in which protein from fish meal was substituted by protein from SBM and PM. The dietary amino acids of diets FM20, FM15, FM10 and FM5 were equal to those of the diet FM30 by adding crystalline amino acids (lysine and methionine). Each diet was randomly assigned to triplicate groups of 30 shrimps (initial weight = 0.48 g), each three times daily. The results indicated that shrimp fed the diets FM15, FM10 and FM5 had poor growth performance and feed utilization compared with shrimp fed the control diet. No difference was observed in feed intake, survival and body composition among dietary treatments. The plasma total cholesterol level of shrimp and the digestibility of dry matter, protein and energy contained in the diets decreased significantly with increasing PM and SBM inclusion levels. Results of this study suggested that fish meal can be reduced from 300 to 200 g kg?1 when replaced by a mixture of SBM and PM. 相似文献
13.
Replacement of squid and krill meal by snail meal (Buccinum striatissimum) in practical diets for juvenile of kuruma shrimp (Marsupenaeus japonicus) 
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下载免费PDF全文 Amina S Moss Shunsuke Koshio Manabu Ishikawa Saichiro Yokoyama Truong H Nhu Mahmoud A O Dawood Weilong Wang 《Aquaculture Research》2018,49(9):3097-3106
A 60‐day feeding trial was conducted to investigate the effects of substituting squid and krill meal with marine snails (Buccinum striatissimum) into the diets of juvenile kuruma shrimps (Marsupenaeus japonicus). Five experimental diets were formulated to contain varying levels of snail meal at 0%, 25%, 50%, 75% and 100% (D1, D2, D3, D4 and D5, respectively) and fed to juvenile kuruma shrimps (initial mean weight 0.27 ± 0.02 g). The results showed that weight gain, feed intake and specific growth rate were improved significantly in D4 and D5 groups when compared with D1 group (p < 0.05). Significant differences were not detected in survival rate among all shrimps fed diets containing several levels of snail meal (p > 0.05). Crude protein content of shrimps fed the control diet was significantly lower than other treatments (p < 0.05). Lipid content in shrimps fed 50% snail meal were significantly higher than the control while cholesterol content in shrimps fed 100% snail meal were significantly decreased and polyunsaturated fatty acid contents were significantly increased in shrimps fed 75%–100% snail meal (p < 0.05). These results suggest that supplementing snail meal for complete replacement of squid and krill meal can be done to improve juvenile kuruma shrimps’ growth and reducing their cholesterol levels. 相似文献
14.
Replacement of fish meal by meat and bone meal in practical diets for the white shrimp Litopenaeus vannamai (Boone) 总被引：1，自引：0，他引：1
Beiping Tan Kangsen Mai Shixuan Zheng Qicun Zhou Lihe Liu & Yu Yu 《Aquaculture Research》2005,36(5):439-444
The use of meat and bone meal (MBM) was evaluated as a replacement for fish meal in a practical diet formulated to contain 41% protein and 8% lipid. Anchovy meal was replaced by 0%, 20%, 30%, 40%, 50%, 60% and 80% of MBM (diets 1–7) respectively. Healthy post larvae of Litopenaeus vannamei were reared in an indoor, semi‐closed recirculating system. Each dietary treatment was fed to triplicate groups of 40 shrimp per tank (260 L) arranged in a completely randomized design. The shrimp were hand‐fed to near‐satiation three times daily between 07:00 and 18:00 hours for 56 days. There were no significant differences (P>0.05) in growth performance among shrimp fed diets 1–6. However, shrimp fed diet 7 had significantly lower (P<0.05) growth than those fed diet 2 or diet 4. Survival ranged from 95% to 100% and did not significantly (P>0.05) differ. Feed conversion ratio (FCR) and carcass composition of the shrimp were not significantly (P>0.05) affected by dietary treatments. No significant differences (P>0.05) in protein efficiency ratio (PER) were found among shrimp fed diets 1‐6. However, shrimp fed diet 7 had significantly lower (P<0.05) PER than those fed diet 1 or diet 4. Results showed that up to 60% of fish meal protein can be replaced by MBM with no adverse effects on growth, survival, FCR, PER and body composition of L. vannamei. 相似文献
15.
Abstract The Australian native freshwater fish Murray cod, Maccullochella peelii pellii (Mitchell), currently supports a fledgling inland aquaculture industry, which is thought to have considerable growth potential. The aim of this study was to evaluate the suitability of two alternate protein sources [blood meal (BM) and defatted soybean meal (SBM)] as substitutes for fish meal at various levels of inclusion in diets for juvenile Murray cod. The growth performance of juvenile Murray cod in response to nine isonitrogenous and isocalorific diets (50% protein, 14% lipid, 20.2 kJ g?1) consisting of a control diet in which protein was supplied from fish meal, and test diets in which the fish meal protein was substituted at levels of 8%, 16%, 24%, and 32% with BM or SBM was evaluated from a 70‐day growth experiment. The per cent apparent dry matter (% ADCdm) and percentage protein digestibility (% ADCp) of the test diets were also determined using Cr2O3 as a marker. Survival in all the SBM dietary treatments was high but that of fish on the BM dietary treatments was significantly (P < 0.05) lower than in all the other dietary treatments. Specific growth rate (% day?1) of Murray cod fed SBM incorporated diets ranged from 1.63 ± 0.06 to 1.78 ± 0.10 and even at the highest level tested (32% of the dietary protein from SBM) was not significantly different (P > 0.05) from the fish fed the control diet (1.65 ± 0.09). Feed conversion ratios of the SBM dietary treatments ranged from 1.36 ± 0.08 to 1.45 ± 0.07. The protein efficiency ratios and protein conversion efficiencies of Murray cod in the soybean meal treatments were also good and for a majority of the SBM diets were better than those for the control diet. Per cent ADCdm and ADCp of the SBM diets tested ranged from 70.6 ± 1.46 to 72.3 ± 1.81% and 88.6 ± 0.57 to 90.3 ± 0.17%, respectively, and was not significantly different (P > 0.05) from the control diet (% ADCdm 74.3 ± 1.63; % ADCp 91.3 ± 0.55). The reasons for significantly poor survival and growth of Murray cod reared on BM incorporated diets, and relatively poor digestibility of these diets are discussed. The study shows that for Murray cod diets in which fish meal protein is substituted up to 32% performance or carcass composition is not compromised. 相似文献
16.
Triplicate groups of gibel carp Carassius auratus gibelio (initial body weight: 5.25 ± 0.02 g) were fed for 8 weeks at 20–25 °C on five isonitrogenous (crude protein: 400 g kg?1) and isoenergetic diets (gross energy: 17 kJ g?1). Meat and bone meal (MBM) or poultry by‐product meal (PBM) were used to replace fish meal at different levels of protein. The control diet contained fish meal as the sole protein source. In the other four diets, 150 or 500 g kg?1 of fish meal protein was substituted by MBM (MBM15, MBM50) or PBM (PBM15, PBM50). The results showed that feeding rate for the MBM50 group was significantly higher than for other groups except the PBM50 group (P < 0.05). Growth rate in the MBM15 group was significantly higher than that in the control (P < 0.05), while there was no significant difference in growth between the control and other groups (P > 0.05). Feed efficiency and protein efficiency ratio in MBM50 was significantly lower while that in MBM15 was significantly higher (P < 0.05). Replacement of fish meal by MBM at 500 g kg?1 protein significantly decreased apparent dry matter digestibility (ADCD) and gross energy (ADCE) while apparent protein digestibility (ADCP) was significantly decreased by the replacement of MBM or PBM (P < 0.05). The results suggest that MBM and PBM could replace up to 500 g kg?1 of fish meal protein in diets for gibel carp without negative effects on growth while 150 g kg?1 replacement by MBM protein improved feed utilization. 相似文献
17.
配制5种等氮、等能的饲料,D1组以全鱼粉作为蛋白源,D2、D3组分别用脱脂豆粕替代10%和20%鱼粉,D4组以啤酒酵母粉替代10%鱼粉,D5组以玉米蛋白粉替代10%鱼粉,投喂体质量30～38g的幼鱼5周,研究3种蛋白源替代饲料中的鱼粉蛋白对大规格军曹鱼幼鱼生长和体成分的影响。试验结果表明,各组存活率差异不显著(P0.05);D3组体质量、质量增加率、饲料转化率、蛋白质效率和特定生长率均显著低于D1组(P0.05),而其他各组无显著差异(P0.05)。D3组全鱼粗脂肪含量显著低于D1、D5组(P0.05),肌肉灰分含量则显著高于其他组(P0.05);其他各组全鱼和肌肉常规营养成分无显著差异(P0.05)。D3组肝体指数显著低于其他组(P0.05),各组的脏体指数、肝脏脂肪含量和肥满度均无显著差异(P0.05)。试验结果提示,3种蛋白均可替代饲料中10%的鱼粉蛋白而不产生显著影响,但替代比例达到20%,就可能对大规格幼鱼的生长、饲料利用、体成分和健康产生不良影响。 相似文献