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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(4): 652-658
DOI: https://doi.org/10.20546/ijcmas.2018.704.074


Induction of Spontaneous Captive Spawning, Embryonic Development and Larval Rearing in Mystus cavasius
Rekha Das1*, Himanshu Priyadarshi2, Satya Prakash3, Chandan Debnath1, Lopamudra Sahoo1, Abhijit Singha1, Ch. Basudha Devi4 and S.K. Das5
1ICAR Research Complex for NEH Region, Tripura Centre, Lembucherra, Tripura-799210, India
2College of Fisheries (Under CAU Imphal), Lembucherra, Tripura-799210, India
3ICAR-Central Institute of Fisheries Education, Versova, Mumbai-400061, India
4ICAR Research Complex for NEH Region, Manipur Centre, Imphal, Manipur, India
5ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
*Corresponding author
Abstract:

We report induction of spontaneous spawning in Mystus cavasius in glass aquaria provided with water hyacinth for egg attachment. The brooders (20 to 25g) were injected intramuscularly with Ovatide™ at the rate of 0.2 millilitre/Kilogram body weight and introduced into the spawning tanks in the evening. Maximum spawning response was obtained when two pairs of brooders were housed in one tank. Courtship was initiated 3 hours post injection. Batch spawning over a span of 6 to7 hours occurred 7 hours post induction. The first hatchling emerged 14 hours post fertilization and yolk sac absorption was completed 48 hours post hatching at temperature of 26±2⁰C. Fertilization and hatching rates of 62% and 60% respectively were obtained in spontaneous spawning as against 48.9% and 43.2% in artificial fertilization. Immediately after yolk sac absorption, the fry exhibited obligatory air breathing behaviour that lasted upto 18-20 days post hatching. Maintaining water column at 10 centimetre and stocking density at 50 to 60 numbers/litre for the first 18 days, and providing a combination of feeds improved fry survivability. Our study holds special interest in the development of field friendly seed production protocols for the species.


Keywords: Bagridae, Catfish, Seed production, Embryonic development
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How to cite this article:

Rekha Das, Himanshu Priyadarshi, Satya Prakash, Chandan Debnath, Lopamudra Sahoo, Abhijit Singha, Ch. Basudha Devi and Das, S.K. 2018. Induction of Spontaneous Captive Spawning, Embryonic Development and Larval Rearing in Mystus cavasius.Int.J.Curr.Microbiol.App.Sci. 7(4): 652-658. doi: https://doi.org/10.20546/ijcmas.2018.704.074