In:
Biotechnology and Applied Biochemistry, Wiley, Vol. 64, No. 4 ( 2017-07), p. 564-571
Abstract:
Oligochitosan (COS) and oligo‐β‐glucan (βOG) were prepared by gamma Co‐60 irradiation of chitosan/H 2 O 2 and β‐glucan/H 2 O 2 solutions. The striped catfish ( Pangasianodon hypophthalmus ) was fed diets containing 0–200 mg COS, βOG, and a mixture of COS/βOG per kg feed for 45 days, and then challenged with Edwardsiella ictaluri bacterium. The effects of supplemented COS, βOG, and a mixture of COS/βOG on immune stimulation and growth performance in striped catfish were investigated. The results indicated that when striped catfish fed with 100–200 mg COS or βOG/kg feed the growth performance was significantly improved and the mortality was considerably decreased. Furthermore, striped catfish fed with supplementation of 50 mg COS + 50 mg βOG/kg feed was the best for increasing weight gain (∼26%) and for decreasing mortality (∼38%) compared with the control group. Moreover, phagocytic activity and lysozyme activity of fish were enhanced by feeding diet‐supplemented COS and/or βOG. Thus, COS and/or βOG can be potentially utilized as the immunostimulants and growth promoters for aquaculture.
Type of Medium:
Online Resource
ISSN:
0885-4513
,
1470-8744
DOI:
10.1002/bab.2017.64.issue-4
Language:
English
Publisher:
Wiley
Publication Date:
2017
detail.hit.zdb_id:
1496341-3
SSG:
12
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