Effect of incubation temperature on embryonic development of Labeo rajasthanicus | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 36, Volume 26, Issue 4, July and August 2022, Page 613-621 PDF (425.08 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2022.253132 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| V.P. Saini et al. | ||||
| Abstract | ||||
| The present work aimed to investigate the effect of incubation temperature on the embryonic development of the minor carp < em> Labeo rajasthanicus. To assess the embryonic development of L. rajasthanicus, eggs were incubated at five different temperatures (22, 26, 30, 34, and 38°C). Developmental stages were monitored by sampling embryos in these five different temperatures at particular intervals. The results showed that the eggs incubated at 38°C did not develop beyond the two-cell stage. The maximum duration for hatching and times to reach different life stages was observed at 22°C followed by 26°C. Hatching of eggs was observed after 20.27±0.29, 17.48±0.16, 15.03±0.13, and 17.13±0.20 hours of fertilization at 22, 26, 30, and 34°C respectively. The hatching time and time to attain different ontogenic stages were decreased with increased temperatures. This study demonstrated that incubation temperature significantly (p < 0.05) influenced hatching duration and ontogenic development in L. rajasthanicus. | ||||
| Keywords | ||||
| Fish; Labeo rajasthanicus; Embryonic Development; Incubation; Temperature | ||||
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