Please use this identifier to cite or link to this item: http://localhost:80/xmlui/handle/123456789/607
Title: Thermal dependence of embryonic development and hatching rate in Labeo rohita (Hamilton, 1822)
Authors: Das, T.
Pal, A.K.
Chakraborty, S.K.
Manush, S.M.
Dalvi, R.S.
Sarma, K.
Mukherjee, S.C.
Keywords: Hatching rate
Embryonic developmen
Temperature
L. rohita
Issue Date: 2006
Publisher: Aquaculture (Elsevier)
Abstract: The present study was designed to assess the embryonic development of Labeo rohita fertilized eggs incubated at four different temperatures (26, 31, 33 and 36°C) until hatching. Fertilization was carried out at ambient temperature (26 °C) and was considered as 0 h of embryonic development. Developmental stages were monitored by sampling embryos in different temperatures at particular intervals. Highest hatching percentage and least time for attaining each ontogenic stage were observed at 31N33N26N36 °C and were significantly different (pb0.05). The lowest hatching percentage and maximum time duration for attaining a given ontogenic stage were observed at 36 °C; this treatment also resulted in malformed embryos. Our study demonstrated that incubation temperature significantly (pb0.05) influences hatching duration, hatching rate and survival of L. rohita eggs.
URI: http://111.93.204.14:8080/xmlui/handle/123456789/607
ISSN: 0044-8486
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