中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 饲料中蛋白脂肪比对斑点叉尾幼鱼生长、消化酶活性及肌肉成分的影响 水产学报 2010,34 (7) 1129-1135
Position: Home > Articles > Effects of dietary protein to lipid ratio on growth,digestive enzyme activities and muscle composition of juvenile channel catfish(Ictalurus punctatus) Journal of Fisheries of China 2010,34 (7) 1129-1135

饲料中蛋白脂肪比对斑点叉尾幼鱼生长、消化酶活性及肌肉成分的影响

作  者：
蒋广震;刘文斌;王煜衡;李向飞;庄苏
单  位：
南京农业大学动物科技学院
关键词：
斑点叉尾;蛋白脂肪比;生长;消化酶活性;肌肉成分
摘  要：
探讨了不同的蛋白和脂肪水平对斑点叉尾生长与品质等的影响,试验设计以豆粕调节蛋白含量,混合油脂(鱼油∶豆油=1∶1)调节脂肪含量,并以α-淀粉和次粉为填充物,共配制3个蛋白(P)水平(28%,32%,36%),每一蛋白水平设3个脂肪(L)水平(5.0%,7.5%,10.0%),共9种饲料,分别为P28L10,P32L10,P36L10,P28L7.5,P32L7.5,P36L7.5,P28L5,P32L5和P36L5,每组4重复,每重复80尾鱼[(1.5±0.02)g]。饲养60d后,进行生产性能测定,并采集肌肉等组织样本,测定相关指标。结果表明:饲料蛋白脂肪比对斑点叉尾幼鱼生长有显著影响(P<0.05)。其中P36L7.5组增重率(WGR)、饲料效率(FCR)最高,与P36L10和P32L7.5组差异不显著(P>0.05),但显著高于其它组(P<0.05)。P36L10组试验鱼肥满度(CF)最高,与P32L7.5和P36L7.5组差异不显著(P>0.05),但显著高于其他组(P<0.05)。鱼体内脏比(VBR)、腹脂率(MSI)随脂肪水平降低而显著降低(P<0.05)。试验各组肌肉水分含量差异不显著(P>0.05),肌肉脂肪含量随饲料中脂肪和蛋白水平的降低而显著降低(P<0.05)。肝胰脏脂肪酶、胃蛋白酶活力随着饲料脂肪水平的增加而提高(P<0.05),但其他消化酶活力差异不显著(P>0.05)。由此可见,饲料中7.5%的脂肪,32%的蛋白质,蛋能比22.4mg/kJ可满足斑点叉尾幼鱼的生长需要,同时又能保证其正常生理机能,建议可在实际生产配方中作参考值。
译  名：
Effects of dietary protein to lipid ratio on growth,digestive enzyme activities and muscle composition of juvenile channel catfish(Ictalurus punctatus)
作  者：
JIANG Guang-zhen, LIU Wen-bin, WANG Yu-heng, LI Xiang-fei, ZHUANG Su(College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China)
关键词：
channel catfish (Ictalurus punctatus); dietary protein to lipid ratio; growth performance; digestive enzyme activity; muscle composition
摘  要：
A 60-day feeding trial of 3 dietary protein levels (28%,32% and 36%) and 3 dietary lipid levels (5.0%,7.5% and 10.0%) designed with 4 replications was conducted to determine the effects of dietary protein and lipid levels on growth,digestive enzyme activities and muscle composition of juvenile channel catfish[initial body weight:(1.5±0.02)g].Fish were fed respectively to apparent satiation by 9 experimental diets named P28L10,P32L10,P36L10,P28L7.5,P32L7.5,P36L7.5,P28L5,P32L5 and P36L5 with 4 replications.The results indicated that weight growth rate (WGR) and feed coefficient rate (FCR) were significantly affected by dietary protein and lipid levels or a dietary protein × lipid interaction (P<0.05).WGR and FCR of fish fed the P28L10 diet were the lowest among all the treatments (P<0.05).Growth performance of fish fed diets with 28% protein were lower than that of fish fed higher protein levels (P<0.05);the lowest growth performance was observed in fish fed the P28L10 diet.The highest WGR was obtained in fish fed the P36L7.5 diet;and no obvious differences of WGR were found in fish fed the P36L7.5,P36L10 and P32L7.5 diets (P>0.05).Activities of liver-lipase and stomach-protease changed significantly as dietary lipid levels increased (P<0.05).Muscle lipid levels decreased significantly with dietary lipid levels (P<0.05),and muscle protein levels could be influenced by dietary protein and lipid levels.Viscerasomatic index (VSI),mesenteric lipid-somatic index (MSI) and condition factor (CF) together may show that muscle protein and lipid levels could be affected by dietary protein × lipid interaction.In conclusion,this study suggests that growth performance of juvenile channel catfish is improved at a suitable protein/lipid ratio in diet.Fish fed diet containing 32% protein,7.5% lipid and 22.4 mg/kJ P/DE ratio got the best growth performance and the ideal body composition.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46