Start of Research on Carp Culture Technologies

Figure: Research ponds stocked with stunted fingerling

As the apical technical aquacultural organization in Bhutan, National Research & Development Centre for Aquaculture (NRDCA), Gelephu has initiated on-station research on culture of the Carp species Rohu (Labeo rohita) and Mrigal (Cirrhinus mrigala). The objective of the research is to custom-make a technology capable of enabling the stunted fingerlings of these species 9 months old) to attain an individual harvest weight of 0.65 kg in six months (actually to see if this, as is commonly postulated, bears out). The research – beginning on 30th March, 2017 and expected to be completed on 30th September, 2017 – is a 6-month long activity.


Figure 2: Sampling research fingerlings.

The main variable across treatments in the current research is the stocking density (fingerlings/unit water surface area). All other management aspects such as feeding, manuring, fertilization and liming are the same for all treatment ponds.

Due to the availability of ready live input (fingerlings), the present research focuses only on the stunted fingerling of Rohu and Mrigal. As time passes, other carp species will also be subjected to research to custom-make culture technologies that will ensure that Bhutan’s fish farmers reap the maximum benefits from culturing them under Bhutanese environmental conditions. In due course of time, similar research on-farm will also be conducted. Incidentally, this is the first

Figure 3: Measurement of fingerling’s weight during initial stocking


ever formal and scientific investigation conducted into the growth performance of carps in Bhutan by a government research organization. The NRDCA aims to conduct several more researches to fill the aquaculture knowledge gap in Bhutan.





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Pema Thinley,

Assistant Manager,

Research, Infrastructure and Extension Support Unit (RIESU), 

National Research & Development Centre for Aquaculture (NRDCA),

Gelephu: Sarpang.                                                          


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