Effect of dietary Sargassum wightii and its fucoidan-rich extract on growth, immunity, disease resistance and antimicrobial peptide gene expression in Labeo rohita

Autor: Adnan Hussain Gora, Narottam Prasad Sahu, Sujata Sahoo, Saima Rehman, Showkat Ahmad Dar, Irshad Ahmad, Deepak Agarwal
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: International Aquatic Research, Vol 10, Iss 2, Pp 115-131 (2018)
Druh dokumentu: article
ISSN: 2008-4935
2008-6970
DOI: 10.1007/s40071-018-0193-6
Popis: Abstract This work aimed to appraise growth performance, immune responsiveness, bacterial disease resistance and mRNA expression of two antimicrobial peptides in Labeo rohita fingerlings fed diets supplemented with seaweed Sargassum wightii and its fucoidan-rich extract. Two hundred and twenty-five fingerlings were divided into five experimental groups in triplicates, each replicate having 15 fish in a 90-L tank. Different groups were fed with isonitrogenous (35% crude protein) and isoenergetic (1408.16 kJ/100 g) diets containing either 0% fucoidan-rich seaweed extract (FRSE), 1% FRSE, 2% FRSE, 3% seaweed powder and 6% seaweed powder for 60 days. Partial nucleotide sequences of the antimicrobial peptides, hepcidin and defensin, were characterized in Labeo rohita fingerlings, and gene expression in the different tissues of experimental fish was studied. The fish-fed FRSE-supplemented diets showed significant increase (P
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