Mohamed, A., Ali, R., Abdelfatah, S., Zenhom, O. (2014). Effect of different sources and levels of some dietary biological additives on: IV-immunity and haematology of Nile Tilapia, Oreochromis niloticus. Egyptian Journal of Aquatic Biology and Fisheries, 18(1), 49-60. doi: 10.21608/ejabf.2014.2193
Abdelhamid Mohamed; Refaey Ali; Seden Abdelfatah; Osama Zenhom. "Effect of different sources and levels of some dietary biological additives on: IV-immunity and haematology of Nile Tilapia, Oreochromis niloticus". Egyptian Journal of Aquatic Biology and Fisheries, 18, 1, 2014, 49-60. doi: 10.21608/ejabf.2014.2193
Mohamed, A., Ali, R., Abdelfatah, S., Zenhom, O. (2014). 'Effect of different sources and levels of some dietary biological additives on: IV-immunity and haematology of Nile Tilapia, Oreochromis niloticus', Egyptian Journal of Aquatic Biology and Fisheries, 18(1), pp. 49-60. doi: 10.21608/ejabf.2014.2193
Mohamed, A., Ali, R., Abdelfatah, S., Zenhom, O. Effect of different sources and levels of some dietary biological additives on: IV-immunity and haematology of Nile Tilapia, Oreochromis niloticus. Egyptian Journal of Aquatic Biology and Fisheries, 2014; 18(1): 49-60. doi: 10.21608/ejabf.2014.2193
Effect of different sources and levels of some dietary biological additives on: IV-immunity and haematology of Nile Tilapia, Oreochromis niloticus
1Anim. Prod. Dept., Fac. of Agric., Mansoura Univ., Mansoura, Egypt
2Cent. Lab. For Aqua. Res., Abbasa, Abo-Hammad, Egypt
Abstract
This study aimed to investigate the effect of dietary graded levels of three pre-and probiotics on the immunity and haematology of all-males mono-sex Nile tilapia fish. The experimental period was 16 weeks after 2 weeks adaptation period. In the pathogenicity test, dietary inclusion of Aqua Superzyme at 0.01% of the diet, Garlen Allicin at 0.01% of the diet, and Diamond V (XPC) at 0.5% of the diet, generally reduced the mortality rate (%) and therefore increased the survival rate (%). Yet, the only significant (P<0.05) positive effect was due to Aqua Superzyme at 0.01% of the diet in general and after 48h whereas the other supplements did not significantly (P>0.05) affect the pathogenicity. The comparisons among substances and their levels clear that the best survival was occurred in the treatment 1:1, i.e the fish group fed Aqua Superzyme (at 0.01% of the diet) diet. The haematological parameters' values increased significantly (P<0.05) by using Aqua Superzyme, particularly at 0.01% of the diet; Garlen Allicin, particularly at 0.01% of the diet; and Diamond V (Original XPC), particularly at 0.4% of the diet). Yet, the overall significantly (P<0.05) best valus for all tested parameters among additives and their levels was that contained Aqua Superzyme at 0.02% of the diet. So, it is recommended to supply Nile tilapia's diet with the prebiotic Aqua Superzyme at 0.01-0.02% of the diet to improve the immunity system of the fish.
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