S. Dokou, K. Bitchava, I. Stylianaki, P. Chantzi, A. Efstathiou, K. Vasilopoulou, M. Tsoumani, E. Gouva, G. Michailidis, Kumar Prafulla, E. Karagouni, I. Giannenas
{"title":"Nano-oregano essential oil improves rainbow trout’s (Oncorhynchus Mykiss) growth performance, oxidative status, fatty acid profile of fillet, affects gene expression and supports skin and intestinal histomorphometry","authors":"S. Dokou, K. Bitchava, I. Stylianaki, P. Chantzi, A. Efstathiou, K. Vasilopoulou, M. Tsoumani, E. Gouva, G. Michailidis, Kumar Prafulla, E. Karagouni, I. Giannenas","doi":"10.2478/aoas-2023-0032","DOIUrl":null,"url":null,"abstract":"Abstract The present study was conducted to investigate the effects of a microencapsulated oregano feed additive containing oregano essential oil named “VISNAT 1” on growth performance, intestinal and skin histomorphometry, serum biochemical parameters, fillet oxidative status and fatty acids (FA) profile of rainbow trout (Oncorhynchus mykiss) under conventional farming conditions. Also, changes in the expression levels of both Insulin-like growth factor-1 (IGF-1) and Growth hormone 1 (GH-1) genes were assessed. A total of 200 sub-adult trouts (52 g±3.2), were randomly allocated into two different treatments with four replicates each. The control group was fed a basal diet, while oregano group was fed diet supplemented with oregano essential oil at the level of 1.0 kg/t of feed. The results indicate that the phytobiotic product beneficially altered feed, fillet and serum oxidative status and improved performance of trouts. Also, oregano essential oil beneficially affected the histopathology and histomorphometry of intestine and skin. Moreover, oregano oil addition in the rainbow trout diet can initiate mitogenic and anti-apoptotic responses in the liver, which is one of the main actions of IGF-1 receptor promoting body growth and health. As a result, oregano essential oil can be used as a supplement on trouts diet but further investigation upon its action should take place.","PeriodicalId":8235,"journal":{"name":"Annals of Animal Science","volume":" ","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Animal Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.2478/aoas-2023-0032","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract The present study was conducted to investigate the effects of a microencapsulated oregano feed additive containing oregano essential oil named “VISNAT 1” on growth performance, intestinal and skin histomorphometry, serum biochemical parameters, fillet oxidative status and fatty acids (FA) profile of rainbow trout (Oncorhynchus mykiss) under conventional farming conditions. Also, changes in the expression levels of both Insulin-like growth factor-1 (IGF-1) and Growth hormone 1 (GH-1) genes were assessed. A total of 200 sub-adult trouts (52 g±3.2), were randomly allocated into two different treatments with four replicates each. The control group was fed a basal diet, while oregano group was fed diet supplemented with oregano essential oil at the level of 1.0 kg/t of feed. The results indicate that the phytobiotic product beneficially altered feed, fillet and serum oxidative status and improved performance of trouts. Also, oregano essential oil beneficially affected the histopathology and histomorphometry of intestine and skin. Moreover, oregano oil addition in the rainbow trout diet can initiate mitogenic and anti-apoptotic responses in the liver, which is one of the main actions of IGF-1 receptor promoting body growth and health. As a result, oregano essential oil can be used as a supplement on trouts diet but further investigation upon its action should take place.
期刊介绍:
Annals of Animal Science accepts original papers and reviews from the different topics of animal science: genetic and farm animal breeding, the biology, physiology and reproduction of animals, animal nutrition and feedstuffs, environment, hygiene and animal production technology, quality of animal origin products, economics and the organization of animal production.