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VOL. 8, ISSUE 2 (2023)
Induced breeding of Labeo mrigala through single dose of ovaprim-C at carp seed farm, Alsu, district Mandi, Himachal Pradesh
Authors
Rakesh Kumar
Abstract
A study was conducted to observe the effect of intramuscular injection
of ovaprim-C on the number of eggs/kg, fertilization rate and hatching percentage
at Carp Seed Farm, Alsu, District Mandi (Himachal Pradesh), during July to
August 2022, on Labeo mrigala (Mori). Studied fish specimens were
spawned successfully following a single dose of injection of ovaprim-C with 0.4
ml kg-1 for female and 0.05 ml kg-1 for male brooders. Ova and milt were
stripped simultaneously and mixture was stirred for 20 to 35 s during which
fertilization occurred. Hatching occurred within 25 to 40 h after fertilization.
The experiment was conducted in circular Chinese hatchery with 4 m diameter.
Overall fertilization and hatchling% age was 65.00% and 75.125% respectively.
Wet body weight was observed to have a positive influence on absolute (r=0.983)
and relative fecundity (r = 0.910) in log-log scale.
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Pages:28-31
How to cite this article:
Rakesh Kumar "Induced breeding of <i>Labeo mrigala</i> through single dose of ovaprim-C at carp seed farm, Alsu, district Mandi, Himachal Pradesh". International Journal of Zoology Studies, Vol 8, Issue 2, 2023, Pages 28-31
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