THE IMPACT OF VASAKA (JUSTICIA ADHATODA) LEAF EXTRACT ON THE GROWTH AND IMMUNE RESPONSE OF SHRIMP (PENAEUS MONODON)

Khulna University Studies Pub Date : 2023-12-18 DOI:10.53808/kus.2023.20.02.1125-ls

Joya Biswas, Alokesh Kumar Ghosh, Sheikh Shaon Ahmmed, H. Sadia, M. Sarower

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Abstract

Justicia adhatoda, also known as "Vasaka plant," is employed in Ayurvedic medicine to treat a wide range of human diseases. This study aimed to explore the potential application of Vasaka leaf extract (VLE) as a viable option for enhancing the growth and immune response of Penaeus monodon. Three diets containing varying amounts of Vasaka leaves (0 g [Control], 0.5 g/kg feed [VLE0.5], and 1 g/kg feed [VLE1.0]) were consumed to replicate groups of shrimp in 60 L aquarium tanks for 28 days. The assessment of growth was conducted by the evaluation of many parameters, including weight gain, specific growth rate, feed conversion ratio, protein efficiency ratio and survival rate. The results of the experiment indicate that there were no statistically significant differences in the growth performance and survival rate of the shrimp across the various experimental groups. The introduction of Vasaka leaf as a dietary supplement resulted in a significant enhancement of shrimp immunity through the upregulation of total haemocyte count, prophenoloxidase activity, and superoxide dismutase activity, accompanied by a concurrent decrease in haemolymph clotting time. These results propose that nutritional supplementation with Vasaka leaf took no negative effect on the growth of P. monodon but did increase its non-specific immune response and can be considered as safe in shrimp culture.

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瓦萨卡（justicia adhatoda）叶提取物对对虾生长和免疫反应的影响

Justicia adhatoda 又称 "Vasaka 植物"，在阿育吠陀医学中被用来治疗多种人类疾病。本研究旨在探索瓦萨卡叶提取物（VLE）的潜在应用，将其作为一种可行的选择，用于提高单脊东方鲷的生长和免疫反应。在 60 升的水族箱中，重复组的对虾食用三种含有不同量瓦萨卡叶的饲料（0 克[对照组]、0.5 克/千克饲料[VLE0.5]和 1 克/千克饲料[VLE1.0]），连续 28 天。通过评估增重、特定生长率、饲料转化率、蛋白质效率比和存活率等多项参数来评估生长情况。实验结果表明，各实验组对虾的生长表现和存活率在统计学上没有显著差异。将瓦萨卡叶作为膳食补充剂可通过提高总血细胞数、丙酚氧化酶活性和超氧化物歧化酶活性显著增强对虾的免疫力，同时降低血淋巴凝结时间。这些结果表明，用瓦萨卡叶补充营养对单节对虾的生长没有负面影响，但确实提高了其非特异性免疫反应，可视为对虾养殖中的安全之选。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Khulna University Studies

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