Effects of natural feeding stimulants and glutamic acid supplementation on the feed intake, growth performance and digestive enzyme activities of red sea bream ( Pagrus major ) fed fish meal‐free soy protein concentrate (SPC)‐based d
Effects of natural feeding stimulants and glutamic acid supplementation on the feed intake, growth performance and digestive enzyme activities of red sea bream ( Pagrus major ) fed fish meal‐free soy protein concentrate (SPC)‐based d
复制标题
天然摄食兴奋剂和谷氨酸补充剂对不含鱼粉大豆浓缩蛋白 (SPC) 的红鲷 (真鲷) 采食量、生长性能和消化酶活性的影响
DOI：
10.1111/are.14077
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发表时间：
2019
影响因子：
2
通讯作者：
Masumoto Toshiro
中科院分区：
文献类型：
--
作者：
Tola Siriporn;Fukada Haruhisa;Masumoto Toshiro
以真鲷为试验材料，进行了两个试验。试验一确定了谷氨酸和天然促食剂提高肉鸭采食量的最佳水平，发现0.5%的谷氨酸和鱼肉水解物（FMH）效果较好。在实验2中，鱼被喂食含有合成摄食刺激剂的基于大豆蛋白浓缩物（SPC）的饮食（基础饮食）、含有FMH的基础饮食（FMH饮食）、含有谷氨酸的FMH饮食（FMHG饮食）和作为对照的鱼粉饮食（FM饮食），直到饱食8周。摄食FMHG的鱼的摄食量显著高于其他鱼（p< 0.05）。FMHG的特定生长率和饲料转化率与FM饲喂的鱼相当（p> 0.05）。任何以SPC为基础的饲料喂养的鱼的相对内脏脂肪比率和粗脂质含量往往低于FM饲料喂养的鱼。各处理间肝胰腺胰蛋白酶和脂肪酶活性差异不显著。SPC可作为真鲷饲料中唯一的蛋白质来源。以SPC为基础的饲料喂养的鱼的较低生长性能不是由于消化酶分泌不良，而是可能与脂质利用障碍有关。
Two experiments were conducted for red sea bream (Pagrus major). In experiment 1, the optimum level of glutamic acid and natural feeding stimulants to enhance feed intake were determined and found that glutamic acid level of 0.5% and fish meat hydrolysate (FMH) were effective. In experiment 2, fish were fed with soy protein concentrate (SPC)‐based diet with synthetic feeding stimulants (Basal diet), the Basal diet with FMH (FMH diet), the FMH diet with glutamic acid (FMHG diet) and with fish meal diet (FM diet) as a control until satiation for 8 weeks. Feed intake of FMHG‐fed fish was significantly higher than others (p< 0.05). Specific growth rate and the feed conversion ratio of FMHG were comparable to those of FM‐fed fish (p> 0.05). Relative visceral fat ratio and crude lipid content of any SPC‐based diet‐fed fish tended to be lower than those of FM diet‐fed fish. There were no significant differences in trypsin and lipase activities hepatopancreas among treatments. SPC can be utilized as a sole protein source in a diet for red sea bream. The lower growth performance in SPC‐based diet‐ fed fish was not due to poor digestive enzyme secretion but could be associated with lipid utilization disorder.