Gupta M.,Central Institute of Fisheries Education |
Pandey N.N.,Directorate of Coldwater Fisheries Reseach |
Tiwari V.K.,Directorate of Coldwater Fisheries Reseach |
Singh R.,Directorate of Coldwater Fisheries Reseach |
And 5 more authors.
Journal of Ecophysiology and Occupational Health | Year: 2013
An attempt was made to evaluate the effect of different temperatures on the incubation period, hatching rate and survival of eggs. Eggs of Labeo dyocheilus were incubated at five different temperatures (14°C, 18°C, 22°C, 26°C and 30°C) and incubation periods were found 42-56 h, 30-48 h, 20-37 h, 18-28 h and 14-19 h respectively. The maximum hatching rate and survival rate was found at temperatures 18°C and 22°C without any significant difference. No survival of hatchlings was found at 14°C. Average length and weight of hatchlings were found maximum at temperature 18°C and minimum at 30°C. At 30°C, length gain and weight gain of hatchlings after 90 days post hatch was found maximum but the survival rate was minimum. The optimum temperature for the production of healthy seed was found 18-22°C. © 2013 The Academy of Environmental Biology, India. Source