Department of Fisheries, Faculty of natural resource, University of Gonbad Kavous, Gonbad Kavous
Abstract
Artemia urmiana nauplii were used as a vector to carry probiotic bacillus to the digestive system of Huso huso larvae. The five species of probiotic bacillus as bacterial blend under the commercial title of Protexin aquatic were used for bio encapsulation of Artemia urmiana. Nauplii for 10 hours were bio encapsulated with three concentrations of 1×105, 2×105 and 3×105 bacteries per milliliter in suspension of broth and were fed by Beluga larvae. The Beluga larvae were fed on the base of the 50 percent of their body weight for 6 times a day. The control treatment was fed on unbioencapsulated artemia nauplii. This experiment was conducted in a completely random design. The results indicated that the probiotic Bacillus could influence growth parameters in Beluga larvae. The gained body weight in experimental treatments of larvae had significant difference in comparison with controlled treatment (P<0.05). The highest gained body weight was obtained in the experimental treatment of Beluga-1. The probiotic bacillus had significant positive effects on the Specific Growth Rate (SGR), Average Daily Growth (ADG) and Thermal Growth Coefficient (TGC) in comparison with controlled treatment (P<0.05). While the Condition Factor did not show a significant difference (P>0.05). The experiment indicated that the probiotic bacillus has the highest ability to increase the growth parameters in Huso huso larvae.
Raoufi, P., & Jafariyan, H. (2018). The probiotic bacillus as biological agents in promotion of growth factors of Beluga (Huso huso) larvae during larviculture. , 6(3), 133-138.
MLA
Paria Raoufi; Hojatollah Jafariyan. "The probiotic bacillus as biological agents in promotion of growth factors of Beluga (Huso huso) larvae during larviculture". , 6, 3, 2018, 133-138.
HARVARD
Raoufi, P., Jafariyan, H. (2018). 'The probiotic bacillus as biological agents in promotion of growth factors of Beluga (Huso huso) larvae during larviculture', , 6(3), pp. 133-138.
VANCOUVER
Raoufi, P., Jafariyan, H. The probiotic bacillus as biological agents in promotion of growth factors of Beluga (Huso huso) larvae during larviculture. , 2018; 6(3): 133-138.