Effect of different diet pellet sizes on the growth of juvenile cobia (Rachycentron canadum)

IF 0.5 4区农林科学 Q4 VETERINARY SCIENCES Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-08-01 DOI:10.1590/1678-4162-12543

C. A. Zarzar, R. Cavalli, P. Santos, T. Trombeta

{"title":"Effect of different diet pellet sizes on the growth of juvenile cobia (Rachycentron canadum)","authors":"C. A. Zarzar, R. Cavalli, P. Santos, T. Trombeta","doi":"10.1590/1678-4162-12543","DOIUrl":null,"url":null,"abstract":"ABSTRACT It is known that there is a close relationship between pellet feed size and fish growth. However, the magnitude of this relationship regarding an animals’ feed efficiency is not yet clear. Therefore, the present study conducted at the Virginia Tech - Virginia Seafood Agricultural Research and Extension Center (USA), investigated the effects of three different pellet feed sizes, 1.7mm (EP.1), 2.3 mm (EP.2) and 3.1 mm (EP.3), on the growth of Cobia (Rachycentron canadum) in a recirculating aquaculture system (RAS). Animals were farmed for 55 days in 77.5-liter tanks (6 fish with an initial density of 3.78 g L⁻¹) weighing approximately 41.83±1.24g. The results showed that during the 8-week culture period, there were no significant differences between the animal’s final weight over the different pellet feed sizes (EP.1 - 952.5±40.7g; EP.2 - 1014.5±26.6g; EP.3 - 1030.0±54.8g). However, biomass gain showed significant differences (EP.1 - 704.0±34+.3g; EP.2 - 763.0±27.8g; EP.3 -776.5±51.9g). Consequently, significant differences were also found in the feed conversion factors.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1590/1678-4162-12543","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

ABSTRACT It is known that there is a close relationship between pellet feed size and fish growth. However, the magnitude of this relationship regarding an animals’ feed efficiency is not yet clear. Therefore, the present study conducted at the Virginia Tech - Virginia Seafood Agricultural Research and Extension Center (USA), investigated the effects of three different pellet feed sizes, 1.7mm (EP.1), 2.3 mm (EP.2) and 3.1 mm (EP.3), on the growth of Cobia (Rachycentron canadum) in a recirculating aquaculture system (RAS). Animals were farmed for 55 days in 77.5-liter tanks (6 fish with an initial density of 3.78 g L⁻¹) weighing approximately 41.83±1.24g. The results showed that during the 8-week culture period, there were no significant differences between the animal’s final weight over the different pellet feed sizes (EP.1 - 952.5±40.7g; EP.2 - 1014.5±26.6g; EP.3 - 1030.0±54.8g). However, biomass gain showed significant differences (EP.1 - 704.0±34+.3g; EP.2 - 763.0±27.8g; EP.3 -776.5±51.9g). Consequently, significant differences were also found in the feed conversion factors.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

不同饲料颗粒大小对加拿大玉米芯（Rachycentron canadum）幼鱼生长的影响

摘要众所周知，颗粒饲料的大小与鱼类的生长有着密切的关系。然而，这种关系对动物饲料效率的影响程度尚不清楚。因此，本研究在弗吉尼亚理工大学-弗吉尼亚海鲜农业研究与推广中心（美国）进行，研究了三种不同颗粒饲料尺寸，1.7mm（EP.1）、2.3mm（EP.2）和3.1mm（EP.3），在循环水产养殖系统（RAS）中对Cobia（Rachycentron canadum）生长的影响。动物在77.5升的水槽中养殖55天（6条鱼，初始密度为3.78 g/L⁻体重约41.83±1.24g。结果表明，在8周的培养期内，不同颗粒饲料大小的动物最终体重之间没有显著差异（EP.1-952.5±40.7g；EP.2-1014.5±26.6g；EP.3-1030.0±54.8g）。然而，生物量增加表现出显著差异（EP.1-704.0±34±.3g；EP.2-763.0±27.8g；EP.3-776.5±51.9g）。因此，饲料转化因子也存在显著差异。

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分钟内获得全文去求助

来源期刊

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia 农林科学-兽医学

CiteScore

0.80

自引率

25.00%

发文量

111

审稿时长

9-18 weeks

期刊介绍： Publica artigos originais de pesquisa sobre temas de medicina veterinária, zootecnia, tecnologia e inspeção de produtos de origem animal e áreas afins relacionadas com a produção animal. Atualmente a revista mantém 628 permutas (419 internacionais e 209 nacionais), sendo um verdadeiro suporte para o recebimento de periódicos pela Biblioteca da Escola. A partir de 1999, a Escola de Veterinária delegou à FEP MVZ Editora o encargo do gerenciamento e edição de todas suas publicações, inclusive do Arquivo, ficando somente com o apoio logístico (instalações, equipamentos, pessoal etc.). O apoio financeiro é exercido pelo CNPq/FINEP e pela própria FEP MVZ.