alexa Dietary microbial levan enhances cellular non-specific immunity and survival of common carp (Cyprinus carpio) juveniles


Journal of Vaccines & Vaccination

Author(s): Dina Rairakhwada, AK Pal, ZP Bhathena, NP Sahu, A Jha

Abstract Share this page

A preliminary study with a 75 days feeding trial was conducted to study the immunomodulatory effect of microbial levan on Cyprinus carpio juveniles. Five purified isonitrogenous and isocaloric diets with graded levels of levan, namely (T1) 0.1% levan, (T2) 0.2% levan, (T3) 0.5% levan, (T4) 1.0% levan, and a control group without levan were fed to five groups of fishes in triplicate. The total erythrocyte count and haemoglobin content was significantly (p < 0.05) enhanced in the T3 group, though the total leucocyte counts, total protein and A/G ratio did not show any significant difference (p > 0.05) when compared with the control group. The respiratory burst activity (NBT) of blood phagocytes and lysozyme activity was also highest in T3 group. The relative survival percentage after challenge with Aeromonas hydrophila was highest (100%) in the T3 group followed by 83.33% and 66.67% in the T2 and T4 groups, respectively. This suggests that microbial levan at 0.5% can be used as a dietary immunostimulant for C. carpio juveniles. This is the first report on microbial levan having an immunomodulatory effect on C. carpio.

This article was published in Fish & Shellfish Immunology and referenced in Journal of Vaccines & Vaccination

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version