[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Indexing and Abstracting::
Articles archive::
For Authors::
For Reviewers::
Registration::
Contact us::
Site Facilities::
Publication Ethics::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
:: Volume 1, Issue 1 (7-2021) ::
injvr 2021, 1(1): 9-19 Back to browse issues page
Evaluation of the anti-bacterial activity of phytol against Erysipelothrix piscisicarius infection in Nile tilapia (Oreochromis niloticus)
I. Adeshina * , G.M. Madi , O.V. Adeniyi , S.B. Setufe , S. Pourmozaffar
University of Ilorin, Ilorin, Nigeria
Abstract:   (386 Views)
About 50% of fisheries are now supported by aquaculture, one of the world's fastest expanding food producing sectors. While there has been a clear decline in catch fisheries, there has been an increase in the global demand for fish, making it a sustainable business and top priority in the world. Aquaculture disease outbreaks, particularly those caused by bacteria like Erysipelothrix piscisicarius, are a significant barrier to profitability. Due to the high expense of antibiotics, the limited duration of protection they provided, the necessity for repeated treatments during prolonged disease outbreaks, the challenges posed by resistant strains, and the rising levels of hazardous residues in carcasses, the use of antibiotics has been discouraged. As an alternative, phytochemicals like phytol can be employed. This investigation looked at the haematology, biochemistry, immunological profiles, antioxidants, histopathology, and lifespan of Phytol-gavaged Nile tilapia, Oreochromis niloticus, which had been infected with E. pisciscicarius. E. pisciscicarius (1.4 x10 CFU/mL/g) was intraperitoneally injected into juvenile Nile tilapia (n=120, mean weight= 4.22g) before being divided among 12 1m3 tanks. Ten fish were housed in each tank. The fish were gavaged with phytol solution at 0, 1.75, 3.50, or 7.00 mg/g after 24 hours of infection, and 14 days' worth of clinical changes were monitored. The outcomes demonstrated that for the first three days after infection, the fish's body did not physically change. However, on Day 4, cracks were seen on the fish's head region in both the Control and 1.75 mg/g, and on Day 10, weak traces of blood surrounding the operculum of the fish grew more obvious. The fish gavaged with 2.50 mg/g phytol experienced the highest survival rate (60.0%), while the control group experienced the lowest (20.0%). With their lowest values found in the control group, significant differences were found in PCV, Haemoglobin, Heterocytes, RBC, WBC, Platelets, Lymphocytes, MCH, MCHC, and Hetero:Lymphocyte in fish (P 0.05). Fish gavaged with phytol had significantly higher superoxide dismutase, catalase, lysozyme, and respiratory burst activity than the control. The control group showed cryptal and surface enterocyte necrosis, intestinal villi atrophy, and gill lamellae hyperplasia, while the treated group, particularly at doses of 3.50 to 7.00 mg/g phytol, showed only mild to no lesions. The study came to the conclusion that Erysipelothrix pisciscicarius infection has a significant impact on Nile tilapia survival, haematology, antioxidants, and immunity. At the recommended level of 3.21 mg/g, phytol can also be used to treat and control the Erysipelothrix pisciscicarius infection in Nile tilapia.
Keywords: Erysipelothrix pisciscicarius, Nile tilapia, Haematology, Antioxidant, Immunity, Survival
Full-Text [PDF 319 kb]   (254 Downloads)    
Type of Study: Research | Subject: General
Received: 2022/09/20 | Published: 2022/08/1
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Adeshina I, Madi G, Adeniyi O, Setufe S, Pourmozaffar S. Evaluation of the anti-bacterial activity of phytol against Erysipelothrix piscisicarius infection in Nile tilapia (Oreochromis niloticus). injvr 2021; 1 (1) :9-19
URL: http://injvr.com/article-1-26-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons attributions (CC-BY).
Volume 1, Issue 1 (7-2021) Back to browse issues page
International Journal of Veterinary Research International Journal of Veterinary Research
Persian site map - English site map - Created in 0.05 seconds with 37 queries by YEKTAWEB 4645