A comparison of two spawning-inducing agents for common carp

Z. Kulikovsky, F. J.B. Marttin, Z. Yaron

Research output: Contribution to journalReview articlepeer-review


Two spawning-inducing agents, Dagin and calibrated carp pituitary extract (CPE), were compared under routine hatchery conditions in Israel during the 1994 breeding season. Comparison was made of three parameters: (a) variance of latency, i.e. the variation in the period between hormone administration and ovulation; (b) spawning ratio, i.e. the number of females which ovulated after injection divided by the total number of injected females and (c) embryo viability, i.e. the number of viable embryos divided by the total number of eggs (x 100%). Results showed that variance of latency is greater when Dagin is administered. The spawning ratios of the two agents did not differ. Also, there were no significant differences in embryo viability although it was higher after administration of CPE.

Original languageEnglish
Pages (from-to)108-111
Number of pages4
JournalIsraeli Journal of Aquaculture - Bamidgeh
Issue number2
StatePublished - Jun 1996


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