[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 5, Number 1 (6-2017) ::
JAIR 2017, 5(1): 89-100 Back to browse issues page
The effect of hot water extraction of seaweed Sargassum angustifoliom on hematological indices and the resistance against the infection with Yersinia bacteria (Yersinia ruckeri) in rainbow trout Oncorhynchus mykiss (Walbaum, 1792)
Mrs fereshteh zeraatpisheh, Dr farid firuzbakhsh *, Mr khosrow janikhalili
Abstract:   (314 Views)

The aim of this study was to evaluate the effect of edible hot water extraction seaweed, Sargassum angustifoliom, on haematological parameters and survival rate of rainbow trout (O. mykiss) against Yersinia ruckeri. For this purpose, 300 rainbow trout specimens (5.82±0.22 g mean weight) were purchased from a local fish farm and transferred to the laboratory. After 14 days acclimation to the experimental conditions, the fish were randomly divided into five groups with triplicates. Fish were fed with 0 (control), 50, 100, 200 and 400 mg/kg of S. angustifoliom extraction for 56 days. The fish blood samples were takenfor fish exposed with Y. ruckeri bacteria at the end of the experimental period (56 days).The number of red blood cells (RBC), white blood cells (WBC), the percentage of haematocrit and the concentration of haemoglobin were then measured. Results showed that the fish fed with different concentrations of seaweed extraction possessed higher survivability rate and more suitable haematological parameters compared to the control group 56 days after feeding and being exposed to Yersinia bacteria. Meanwhile, the number of RBCs, WBCs, and the percentage of haematocrit and concentration of haemoglobin for the fish fed with 400mg/kg hot extraction of seaweed significantly increased at the end of experimental period. Furthermore, resistance against to the Yersiniosis for these fish increased by using this concentration of seaweed extraction. Therefore the present study suggested that 400mg/kg of seaweed extraction could improve rainbow trout blood parameters and increase the resistance against Yersiniosis.

Keywords: O. mykiss, Seaweed extraction, Blood parameters, Survivability rate, Yersinia bacteria
Full-Text [PDF 197 kb]   (139 Downloads)    
Type of Study: Research | Subject: Special
Received: 2016/08/6 | Accepted: 2017/01/25 | Published: 2017/06/21
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML   Persian Abstract   Print


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

zeraatpisheh F, firuzbakhsh F, janikhalili K. The effect of hot water extraction of seaweed Sargassum angustifoliom on hematological indices and the resistance against the infection with Yersinia bacteria (Yersinia ruckeri) in rainbow trout Oncorhynchus mykiss (Walbaum, 1792). JAIR. 2017; 5 (1) :89-100
URL: http://jair.gonbad.ac.ir/article-1-397-en.html
Volume 5, Number 1 (6-2017) Back to browse issues page
نشریه علمی پژوهشی پژوهشهای ماهی شناسی کاربردی Journal of Applied Ichthyological Research
Persian site map - English site map - Created in 0.047 seconds with 792 queries by yektaweb 3478