Comparison of the oral administration of Gracilaria corticata and Saccharomyces cervesia on immunity indicators of Litopenaeus vannamei

Document Type : Original Article

Authors

1 Aquaculture Research Center-South of Iran, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.

2 Department of Health, Aquatic Animal Health and Disease, Faculty of Specialized Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.

3 Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.

Abstract

In this study, Vanami shrimp were fed Gracilaria corticata alga and Saccharomyces cervesia yeast, then their immunity indicators were studied.  A total of 1800 shrimp with 5 gr after adaptation storage were were selected and after adaptation were introduced into nine 10-tons tanks. The first they were tested for disease. Shrimp did not have any bacterial viral diseases. A group was fed Gracelaria corticata as 1500 mg / kg and another tretment with Saccharomyces cerevisiae as 1 g / kg for 25 days. The hemolymph of shrimps was sampled on days 1, 3, 9, 18, and 25. Then, immunity indicators, including THC, TPP, SOD, POD and PO were compared. The results showed that in both treatments, the immunity indicators were significant increased compared to the control group (p < /em><0.05). In addition, the immunity indicators in the algae treatment showed a higher increase compared to the yeast one (p < /em><0.05).

Keywords

Aquaculture Sciences
Volume 8, Issue 2 - Serial Number 2
September 2020
Pages 37-44

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