Journal of Environmental Biology

On-farm performance assessment of genetically improved Jayanti rohu® in Odisha, India

A.R. Rasal*, K. Murmu, B. Mohanta, B.R. Pillai, M. Patnaik and K.D. Mahapatra     

ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar-751 002, India

Received: 12 September 2025                   Revised: 28 October 2025                   Accepted: 10 December 2025

*Corresponding Author Email : avinashrasal44@gmail.com                        *ORCiD: https://orcid.org/0000-0001-6880-971X

Abstract

Aim: On-farm growth evaluation of Jayanti rohu® and local rohu in farmer’s field.

Methodology: The survey based performance evaluation of genetically improved rohu registered as Jayanti rohu® was carried out during April 2019 to March 2020. From July 2021 to April 2022 on-farm growth evaluation of Jayanti rohu® and local rohu was done in farmer’s field at three locations in the Jagatsinghpur, Ragunathpur and Kausalyaganga of Odisha.

Results: Survey data indicated that Jayanti rohu® exhibited significantly higher harvest size, survival, average growth rate, yield and gross profit compared to local rohu, despite similar stocking density and initial size. Jayanti rohu® farmers in Odisha achieved 31% higher production per hectare (ha), 35.7% faster growth and 45.6% higher return on investment (ROI) compared to local farmers in Odisha. On-farm trials further confirmed 40-62% higher growth in Jayanti rohu®, with yields ranging from 4000-5500 kg ha^-1, compared to 2600-3500 kg ha^-1 for local rohu after 10 months of culture at a stocking density of 6000 fingerlings ha^-1 across three locations in Odisha.

Interpretation: The findings of this study highlighted the superiority of Jayanti rohu® over the local rohu strain in Odisha.

Key words: Carp polyculture, Jayanti rohu®, Performance assessment, Socio-economic characteristics

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