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0.05). Starvation challenge was designed for 3 DPH larvae. Survival rate of larvae in 12, 24, 36, 48, 60, 72 hours after starting challenge did not differ significantly among treatments (p>0.05). The present study revealed the best spawning performance of A. arabicus was achieved at a combination of CPE plus LHRH-A 2 , This hormone combination increases the quantity of produced eggs without affecting their quality. Keywords: Induce spawning; Arabian yellowfin seabream, hormone treatment, spawning ]]>
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0.05). While, glucose and hemoglobin levels were significantly increased in fish fed diets containing plant extract. The results of this experiment showed that the use of conocarpus and paulownia extracts can improve the growth, digestive enzymes and non-specific immunity of the O. mykiss.]]>
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0.05). Also, experimental treatments had a significant effect on ASA, ALP and ALT levels (P <0.05). The significantly increased rate of these indices was due to treatments fed with algae. Also, these indices increased significantly in treatment of zinc oxide and also in zinc with algae group. Experimental treatments did not had a significant effect on blood glucose level (P> 0.05). It can be concluded that Padina algae may partially improve the reducing effect of nano-oxide on serum total protein and immunoglobulin levels, which requires further research in this regard.]]>
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0.05), But, maximum level of WBC in treatments 5 and 3 (18.03±1.66, 16.86±1.49 103 mm3, respectively), lymphocyte in treatments 5 and 2 (70.40±4.58, 65.00±2.65, respectively) and eosinophil in treatments 3 and 6 (2.67±1.16, 1.67±0.58, respectively) were observed. Biochemical parameters showed no significant difference among experimental treatments and control, but, there were significant difference among the diets containing probiotic and chitin or/and a mixture of probiotic and chitin (p<0.05). The intestinal bacterial colony in all treatments except treatment 6 was more than the control (p<0.05). The maximum bacterial colony count was observed in treatment 4 (653.33±25.17 CFU/g). In conclusion, it seems the addition 2% probiotic, 1% chitin and a mixture of them can improve white blood cells and intestinal bacterial colony in common carp. ]]>
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