Document Type : Original Article
Authors
1
Unit of Fish Diseases, Animal Health Research Institute, Kafr El-Sheikh Branch, Egypt
2
Fish disease unite, Animal health research institute, kafrelsheikh, Egypt
3
Poultry and Fish diseases, veterinary medicine, Alexandria university, Egypt
4
Hydrobiology department, veterinary research division, national research centre, Egypt
5
Biochemistry, Veterinary Medicine, Damanhour University, Egypt
6
Poultry and fish diseases, veterinary medicine, Damanhour university, Egypt
7
Poultry and Fish diseases, Veterinary medicine, Damanhour university, Egypt
8
Poultry and fish diseases, faculty of veterinary medicine, Damanhour university, Egypt
Abstract
The current study was designed to investigate the probiotic potential of the Biogen with and without the water quality improvement product Q Z Toss™ on growth and health performance of Nile tilapia (Oreochromis niloticus). Four fish groups were maintained on control diet supplemented with the biogen for one month. Both Biogen dietary levels exhibited significant increase in growth parameters as well as in white blood cell count with no negative impacts on renal functions. The histopathological examination revealed better renal epithelial status in Biogen treated groups than other groups, while gills showed significant improvement due to Q Z Toss™ treatment more than other untreated groups. Gills of all treated fish showed milder degrees of pathology in Q Z Toss™ treated groups represented by moderate hyperplasia in malpegian cell layers. Therefore, we can recommend the dietary inclusion of Biogen in aqua-feed along with Q Z Toss™ application in rearing water as an efficient method to achieve feasible and sustainable fish production.
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