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0.05). Also, substantial differences were not observed between experimental groups in glucose, triglyceride, urea, albumin, total protein, LDL, HDL and hepatic enzymes (P>0.05). Essential® consumption led to higher cholesterol concentration and total antioxidant capacity than control group (P<0.05). According to results, it seems use of Essential® as feed additive had no significant effects on productive performance in short term period; but antioxidant properties may have valuable effects on animal health.]]>
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0.05). The results of this investigation showed that the concentration of heavy metals including Zn, Cr, Fe and Ni in the fish muscle were less than the amounts reported by WHO.]]>
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0.05) but it had significant effect on the percentage of hatching, so that percentage of hatching was significantly higher in wild caught brood stocks (P<0.05). Also, type of brood (wild and cultivated) had no significant effect on percentage of fertilization, number of fertilized eggs, number of early hatched larvae, eggs diameter and the number of eggs per gram (P>0.05), but it had significant effect on percentage of hatching (P<0.01) so that percentage of hatching was significantly higher in wild broods. In conclusion according to the results, it founded that age and weight of female broods in contrast to male broods, had significant effect on percentage of hatching (P<0.05), and also type of broods had significant effect on this parameters. ]]>
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0.05). The highest and the lowest sex ratio of male to female were observed in treatments 5 and 3 respectively. As a general conclusion, it can be concluded that the use of 40 and 80 mg of Aloe Vera powder extract per kg of diet in female broodstock probably increased the number of replicated male Xiphophorus helleri larvae.]]>
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0.05). Albumin showed a significant increase in fish fed 4g/kg Urtica dioica compare to control and other groups. Glucose, Cholesterol and triglyceride levels didn’t show significant differences in fish fed extracts compare to control (p>0.05). It appears that supplementation of diet with Urtica dioica could improve physiologic parameters in Carassius auratus.]]>
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0.05). However, there were significant differences between BOD5, COD, TDS, NO2-, TAN and TDS (p<0.05). At the sampling station far from the pen, TDS and Clα and biomass value was found to decrease and turbidity value was found to increase. The maximum amount of Chol a, BOD5, COD, NO2- and TAN were in the station which was 25 m far from the pen sites which showed a significant differences with the other stations (p<0.05). The results also proved that feeding can cause increase, though not significant in P and PO4-3 values around the pen. However, there was significant difference between stations. These results indicate that the pen culture had maximum effect on water quality in distance 5 m far from the pen sites. ]]>
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A. caliginosa > D. hortensis> E. fetida, respectively. Also the species of A. rosea exposed to different concentrations of lead has was more sensitive in stand of biomass loss, MDA and TAC levels. Therefor it seems A. rosea earthworm can be used as suitable biomarkers against to soil lead pollution.]]>
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0.05).]]>
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