4.5 Article

Dietary monosodium glutamate supplementation during the feed training of pacama (Lophiosilurus alexandri): Growth performance and intestinal histomorphometry

期刊

AQUACULTURE RESEARCH
卷 52, 期 1, 页码 356-363

出版社

WILEY
DOI: 10.1111/are.14898

关键词

carnivorous fish; feed additive; feed training efficiency; intestine histomorphometry; Lophiosilurus alexandri; monosodium glutamate

资金

  1. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [304975/2017-6, 308547/2018-7]
  2. Coordination for the Improvement of Higher Education Personnel (CAPES)
  3. Minas Gerais State Foundation for Research Aid (FAPEMIG)

向作者/读者索取更多资源

The study aimed to evaluate monosodium glutamate (MSG) dietary supplementation during pacama (Lophiosilurus alexandri) feed training through growth performance and intestinal histomorphometry. Although MSG did not affect growth performance and feed training efficiency, fish trained with diets supplemented with high levels of MSG showed an increase in the number of goblet cells in the anterior portion of the intestine.
Feed training of carnivorous fish is a delicate and stressful process. Thus, feed additives that reduce stress and encourage fish consumption could improve training efficiency. Therefore, the aim of this study was to evaluate monosodium glutamate (MSG) dietary supplementation during pacama (Lophiosilurus alexandri) feed training through growth performance and intestinal histomorphometry. Fish were trained by the method of gradual diet transition, using five diets with increasing proportions of commercial diet and decreasing proportions of gelatin. A quadruplicate experimental design was performed with seven treatments, consisted in diets supplemented with different levels of MSG (0.0; 2.0; 8.0; 16.0; 29.0; 34.0 and 42.0 g/kg). Pacama (0.17 +/- 0.01 g) were distributed in 28 tanks (30 fish per tank) and trained for 41 days with the experimental diets. There were no effects (p > .05) of MSG on growth performance and feed training indices. However, fish trained with diets supplemented with 42.0 g/kg of MSG presented higher number of goblet cells in the anterior portion of intestine (p < .05). These results demonstrate that MSG did not act on growth performance and feed training efficiency of pacama, and high levels of MSG can cause dietary stress on fish intestinal mucosa.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据