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Captive Breeding of a Gangetic Leaffish Nandus nandus (Hamilton-Buchanan) with Three Commercial GnRH Preparations

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Title Captive Breeding of a Gangetic Leaffish Nandus nandus (Hamilton-Buchanan) with Three Commercial GnRH Preparations
Not Available
 
Creator U. K. SARKAR
P. K. DEEPAK
R. S. NEGI
W. S. LAKRA
 
Subject Nandus nandus
captive breeding
commercial GnRH
incubation
fertilization
hatching
 
Description Not Available
Nandus nandus is a threatened fish species that plays a significant role in the nutrition of India, especially in the Northeastern states. In the present study, induced spawning of a threatened freshwater fish Nandus nandus (Hamilton-Buchanan) was conducted using three commercially available synthetic GnRH preparations viz., wova- FH, ovaprim, and ovatide in different intensities. The brooder females were injected one time and left to spawn in the spawning hapa. It was found that at different dosages (0.1 ml, 0.2, and 0.3 ml/kg of body weight) hormone wova-FH and ovaprim could induce the fishes to spawn. No spawning was observed by females treated with ovatide and in control set. The spawning time, fertilization rate, hatching rate, and survival rate were quantified in each set of experiment. The egg output/gm female was higher with the dosage of 0.3 ml in comparison to 0.1 ml/kg and 0.2 ml/kg of body weight of ovaprim and wova-FH. The statistical analysis showed significant effect (P < 0.05) between hormonal doses with latency period fertilization rate, incubation period, hatching percentage, and egg output. The present study suggests that wova –FH and ovaprim at 0.3 ml/kg body weight of fish are more effective in induction of spawning of N. nandus.
Not Available
 
Date 2017-08-02T05:42:03Z
2017-08-02T05:42:03Z
2009
 
Type Research Paper
 
Identifier U. K. Sarkar , P. K. Deepak , R. S. Negi & W. S. Lakra (2009) Captive Breeding of a Gangetic Leaffish Nandus nandus (Hamilton-Buchanan) with Three Commercial GnRH Preparations, Journal of Applied Aquaculture, 21:4, 263-272, DOI: 10.1080/10454430903320736
1045-4438 (Print)
1545-0805 (Online)
http://krishi.icar.gov.in/jspui/handle/123456789/5030
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis