The effect of feeds containing different protein levels on growth and survival rates of European sea bass (Dicentrarchus labrax L., 1758) juveniles grown in freshwater

Kutsal Gamsız, A. Korkut, A. Kop
{"title":"The effect of feeds containing different protein levels on growth and survival rates of European sea bass (Dicentrarchus labrax L., 1758) juveniles grown in freshwater","authors":"Kutsal Gamsız, A. Korkut, A. Kop","doi":"10.12714//egejfas.40.4.08","DOIUrl":null,"url":null,"abstract":"In this study, the effect of the use of feeds containing different protein ratios on the growth performance of juvenile sea bass (Dicentrarchus labrax L., 1758) reared in freshwater was investigated. Sea bass fry with an average body weight of 1.0 ± 0.03 g were stocked in 120 liter tanks in triplicate after their adaptation to freshwater. The feeds used in the study had different protein/similar fat content. Accordingly, the experimental groups were named as 45CP (45% CP / 18% CF), 50CP (50% CP / 18% CF) and 55CP (55% CP / 18% CF). At the end of the experiment, the highest body weight gain was 5.84 ± 0.03 g in the 55CP group, while the other groups were 5.73 ± 0.09 g (45CP) and 5.8 ± 0.08 g (50CP). SGR rates were similar for all three groups and there was no statistical difference between the groups (P>0.05). SGR values of the groups were calculated as 1.94 ± 0.04 (45CP), 1.89 ± 0.01 (50CP), 1.91 ± 0.02 (55CP), respectively. There was no statistical difference between the 45CP and 55CP groups, while the 50CP group showed a statistically lower FCR rate than the other groups (P<0.05). FCR values were calculated as 1.36 ± 0.05, 1.29 ± 0.03, 1.37 ± 0.04, respectively. There was no difference between the survival rates of the groups. According to the results of the study, it was concluded that sea bass fish can be raised in freshwater, especially in the fry stage, and that it is more effective than the commercial feeds currently used.","PeriodicalId":11439,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ege Journal of Fisheries and Aquatic Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12714//egejfas.40.4.08","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

In this study, the effect of the use of feeds containing different protein ratios on the growth performance of juvenile sea bass (Dicentrarchus labrax L., 1758) reared in freshwater was investigated. Sea bass fry with an average body weight of 1.0 ± 0.03 g were stocked in 120 liter tanks in triplicate after their adaptation to freshwater. The feeds used in the study had different protein/similar fat content. Accordingly, the experimental groups were named as 45CP (45% CP / 18% CF), 50CP (50% CP / 18% CF) and 55CP (55% CP / 18% CF). At the end of the experiment, the highest body weight gain was 5.84 ± 0.03 g in the 55CP group, while the other groups were 5.73 ± 0.09 g (45CP) and 5.8 ± 0.08 g (50CP). SGR rates were similar for all three groups and there was no statistical difference between the groups (P>0.05). SGR values of the groups were calculated as 1.94 ± 0.04 (45CP), 1.89 ± 0.01 (50CP), 1.91 ± 0.02 (55CP), respectively. There was no statistical difference between the 45CP and 55CP groups, while the 50CP group showed a statistically lower FCR rate than the other groups (P<0.05). FCR values were calculated as 1.36 ± 0.05, 1.29 ± 0.03, 1.37 ± 0.04, respectively. There was no difference between the survival rates of the groups. According to the results of the study, it was concluded that sea bass fish can be raised in freshwater, especially in the fry stage, and that it is more effective than the commercial feeds currently used.
不同蛋白质含量的饲料对淡水中生长的欧洲鲈鱼(Dicentrarchus labrax L., 1758)幼鱼的生长和存活率的影响
本研究调查了使用含有不同蛋白质比例的饲料对在淡水中饲养的幼年海鲈(Dicentrarchus labrax L., 1758)生长性能的影响。在适应淡水后,将平均体重为 1.0 ± 0.03 克的海鲈鱼苗放入 120 升的水箱中,一式三份。研究中使用的饲料具有不同的蛋白质/相似的脂肪含量。因此,实验组被命名为 45CP(45% CP / 18% CF)、50CP(50% CP / 18% CF)和 55CP(55% CP / 18% CF)。实验结束时,55CP 组的增重最高,为 5.84 ± 0.03 克,其他各组分别为 5.73 ± 0.09 克(45CP)和 5.8 ± 0.08 克(50CP)。三组的 SGR 率相似,组间无统计学差异(P>0.05)。各组的 SGR 值分别为 1.94 ± 0.04(45CP)、1.89 ± 0.01(50CP)、1.91 ± 0.02(55CP)。45CP 组和 55CP 组之间没有统计学差异,而 50CP 组的 FCR 率低于其他组(P<0.05)。计算得出的 FCR 值分别为 1.36 ± 0.05、1.29 ± 0.03、1.37 ± 0.04。各组存活率无差异。研究结果表明,海鲈可以在淡水中养殖,尤其是在鱼苗阶段,而且比目前使用的商业饲料更有效。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信