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0.05). The mean (±SD) absolute fecundity was 2965.58± 1187.62 eggs. The egg diameter was 0.66- 0.042 mm; that it’s mean was 0.453 (±0.160). The HSI index reached their peaks in March for both sexes. The mean relative fecundity was 438.22±56.05 eggs. The Gonadosomatic index (GSI (were 8.09 for female and 0.7 for male. The Gonadosomatic Index (GSI) for females reached its peaks in March while for male reached its peak in January. The mean of condition factor of male and female were 0.49 and 0.61 respectively.
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0.05), but most of the lymphocytes was observed in garlic extract 1% treatments. In experiments bacterial challenge with the bacterium Yersinia ruckeri, Mortality in the treatment garlic extract 1% one day later than other treatments began and the lowest mortality accounted. From the results of this study can be conclude that the use of garlic extract 1 %and echinacea extract 0.5% makes stimulates the immune system and increase resistance in rainbow trout.]]>
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0.05) among different treatments, despite higher survival rate at 30°C. The growth rate of adult individuals was significantly affected by temperature-salinity interaction (P<0.05). The growth rate was significantly lower in 25ºC -8 and 12ppt and 30ºC-12ppt compared with the other combinations of temperature-salinity. Adult individuals of P. maeoticus at 25°C required one week more time than those reared at 30°C to complete their sexual maturation period. The relative number of released offspring showed no considerable difference among the different temperature-salinity conditions (P>0.05). In overall, the combination of 30°C and 8ppt can be considered as the optimal temperature-salinity condition for culture of adult P. maeoticus.]]>
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