Ethanol Extract of Choerospondias axillaris Fruit Pulp Enhances Haematological Parameters in Oncorhynchus mykiss Cultured in Nepal

Authors

  • Shubha Ratna Shakya Central Department of Zoology, Tribhuvan University, Nepal
  • Shyam Narayan Labh Amrit Campus, Tribhuvan University, Nepal

DOI:

https://doi.org/10.3126/njb.v7i1.26947

Keywords:

Oncorhynchus mykiss, growth, lapsi, haematocrit, haemoglobin

Abstract

The present outdoor experiment was carried out to evaluate the effect of dietary supplementation of lapsi Choerospondias axillaris (Roxburgh, 1832) on haematological parameters in rainbow trout Oncorhynchus mykiss in Nepal. The lapsi fruits were obtained from local market of Kathmandu. The feeding trail was conducted for 90 days. About 270 trout with similar body weight (5±1g) were distributed randomly at the rate of 15 fishes per cage (1m3) into 18 cages placed in raceway pond. Six practical diets containing 40% protein were prepared as T1 (0.0 g kg-1) T2 (0.1 g kg-1), T3 (0.2 g kg-1), T4 (0.4 g kg-1), T5 (0.8 g kg-1) and T6 (1.6 g kg-1) supplemented by the ethanol extract of lapsi fruits along with other usual ingredients viz. fish meal, wheat flour and cod liver oil etc. At the end of the experiment the haematological parameters were measured. A significant difference (P< 0.05) in haematological parameters was observed between the treated diets fed groups to that of control diet fed group. Total erythrocytes count (RBC), Haematocrit (Hct), Haemoglobin concentration (Hb), and erythrocyte indexes (MCV, MCH and MCHC) were found significantly higher in T4 (0.4 %) diet fed trout as compared to the control. A minimum of 0.4 % (0.4g kg-1) lapsi fruit extract in fish feeds gave more increase in haematological parameters of Oncorhynchus mykiss. Inclusion of lapsi fruit extract at 0.4 % concentration is therefore could be used effectively in aquaculture.

Downloads

Download data is not yet available.
Abstract
621
PDF
537

Downloads

Published

2019-12-29

How to Cite

Shakya, S. R., & Labh, S. N. (2019). Ethanol Extract of Choerospondias axillaris Fruit Pulp Enhances Haematological Parameters in Oncorhynchus mykiss Cultured in Nepal. Nepal Journal of Biotechnology, 7(1), 21–29. https://doi.org/10.3126/njb.v7i1.26947

Issue

Vol. 7 No. 1 (2019)

Section

Original Research Articles

License

Copyright Notice:
The manuscript submitted to NJB must be an original contribution, not previously published and should not be under consideration for publication elsewhere. When the manuscript is accepted for publication, the authors agree to automatically transfer the copyright of the article to the publisher. It should grant permission to any third party, in advance and in perpetuity, the right to use, reproduce or disseminate your article, according to the NJB copyright and license agreement.

Authors transfer copyright to the publisher as part of a journal publishing agreement but have the rights to: Share their article for Personal Use, Internal Institutional Use and Scholarly Sharing purposes, with the NJB applies the Creative Commons Attribution-NonCommercial CC BY-NC license to all the works we publish after Jun 2020 (Before it was CC BY-NC-ND). Under this license, authors agree to make articles legally available for reuse, without permission or fees, for virtually any non-commercial purpose. Anyone may remix, adapt, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms. More details on CC BY-NC refer to its Licence Deed and Legal Code.