Vet World Vol.12 July-2019 Article-12
Research Article
Veterinary World, 12(7): 1008-1012
https://doi.org/10.14202/vetworld.2019.1008-1012
Effect of monosodium glutamate on growth performance and blood biochemical parameters of rainbow trout (Oncorhynchus mykiss W.)
2. Department of Food Hygiene and Control, Veterinary Legislation and Management, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria.
Background and Aim: This study aimed to evaluate the effect of dietary monosodium glutamate (MSG) on growth performance and blood biochemical parameters of rainbow trout (Oncorhynchus mykiss W.).
Materials and Methods: A total of 200 trouts were allotted in five experimental groups (n=40) that for 60 days received feed supplemented with MSG at the following levels: 0% (K) or 0.5% (E) or 1% (F) or 3% (G) or 5% (H).
Results: The average initial weight of trouts was 116.68±1.51 g (K), 116.58±1.33 g (E), 116.43±1.39 g (F), 117.40±1.47 g (G), and 115.95±1.88 g (H). At the end of the trial, control fish (K) had the lowest live weight (242.90±3.87 g) compared to Groups E (252.70±5.69 g), F (250.93±4.82 g), G (248.25±4.98 g), and H (247.95±4.74 g). Feed conversion ratio (FCR) of control group (K) was higher (1.11±0.02) versus FCR values established in Groups E (1.03±0.01), F (1.04±0.02), G (1.07±0.03), and H (1.06±0.02). Albumin, aspartate aminotransferase, gamma-glutamyl transpeptidase, alkaline phosphatase, phosphorus, magnesium, and triglyceride exhibited statistically significant differences versus controls.
Conclusion: The results from the study showed that dietary supplementation of rainbow trouts with MSG increased live weight and reduced FCR. The optimum level of MSG recommended for addition to feed was 0.5%. Keywords: blood biochemical parameters, growth performance, monosodium glutamate, rainbow trout.
Keywords: blood biochemical parameters, growth performance, monosodium glutamate, rainbow trout.
How to cite this article: Zhelyazkov G, Stratev D (2019) Effect of monosodium glutamate on growth performance and blood biochemical parameters of rainbow trout (Oncorhynchus mykiss W.), Veterinary World, 12(7): 1008-1012.
Received: 27-02-2019 Accepted: 03-06-2019 Published online: 11-07-2019
Corresponding author: Deyan Stratev E-mail: deyan.stratev@trakia-uni.bg
DOI: 10.14202/vetworld.2019.1008-1012
Copyright: Zhelyazkov and Stratev, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.