Open AccessEffects of Dietary Mannan Oligosaccharide on Growth Performance, Feed Utilization, Body Composition and Haematological Parameters in Asian Catfish (Clarias batrachus) Juveniles
Author(s) -
Mst. Nahid Akter,
Khurshid Zahan,
Md. Abu Zafar,
Najida Khatun,
Md. Sohel Rana,
Md. Imamul Mursalin
Publication year - 2021
Publication title -
turkish journal of fisheries and aquatic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.343
H-Index - 29
eISSN - 2149-181X
pISSN - 1303-2712
DOI - 10.4194/1303-2712-v21_11_04
Subject(s) - catfish , clarias gariepinus , mannan , biology , zoology , clarias , protein efficiency ratio , feed conversion ratio , composition (language) , body weight , food science , fish <actinopterygii> , fishery , endocrinology , biochemistry , polysaccharide , linguistics , philosophy
The influence of dietary supplementation of mannan oligosaccharide (MOS) on growth performance, feed utilization, body composition and haematological parameters were evaluated in Asian catfish (Clarias batrachus) juveniles. Triplicate groups of juveniles Asian catfish (21.23 ± 1.01 g) were fed twice per day at 3 % of body weight for 12 weeks, with 0 (control), 0.2, 0.4 or 0.6% MOS diets. Compared to control, those fed with MOS supplemented diets had significantly improved (P<0.05) specific growth rates, protein efficiency ratio and survival rate. Significantly lower hepatosomatic index was noted in 0.2% and 0.4% MOS diets compared to those fish fed control. Similarly, intraperitoneal fat was significantly lowest in those fish fed with 0.4% diet over the control group. The highest protein content was (81.86±0.36) in fish fed with 0.4% MOS diet, whereas ash content was highest (7.33±1.23) in fish group fed with 0.6% MOS. Significantly decreased erythrocyte sedimentation rate and increased packed cell volume were observed when the fish fed with 0.4% and 0.6% MOS diets compared to the remaining treatments. MOS supplemented diets showed significant influence on the white blood cell count compared to the control. Thus, 0.4% MOS is sufficient to improve growth and haematological parameters in Asian catfish.