Vol 12 Issue 2 April 2024-June 2024

Abstract: The objective of the current study was to comprehend the immune response in freshwater crabs, Paratelphusa jacquemontii. The purpose of this study was to demonstrate serum phenoloxidase (PO) activity. Different phenolic substrates were used to test the PO enzymes substrate affinity, and DL-3,4-dihydroxyphenylalanine (DL-DOPA) demonstrated the enzyme's highest substrate affinity. When the enzyme activity of serum with various DL-DOPA concentrations was evaluated, it showed that the enzyme activity was highest at 5 mM of DL-DOPA concentration. When the DL-DOPA enzyme activity was examined at various time intervals, it demonstrated stable activity at 10 min incubation duration. When the impact of various buffer ionic strengths on the oxidation of DL-DOPA by serum was evaluated, greater enzyme activity was found at a concentration of 50 mM Tris-HCl. Studying the impact of pH and temperature on the oxidation of DL-DOPA by serum, pH 7.5 and 25 ^°C were shown to have steady action. 10 mM phenylthiourea (PTU) inhibited the serum PO activity while trypsin, sodium dodecyl sulphate (SDS), and non-self molecule laminarin activated it. We also discovered the substances that in serum with strong PO activity inhibited or activated the enzyme in vitro, indicating for the first time an immunological function.

Keywords: Paratelphusa jacquemontii, innate immunity, phenoloxidase, inhibition and activation, enzyme activity.

Title: IN VITRO SERUM PHENOLOXIDASE ACTIVITY IN THE HEMOLYMPH OF FRESHWATER CRAB PARATELPHUSA JACQUEMONTII (RATHBUN, 1905)

Author: Rangasamy Shanthi, Mullaivanam Ramasamy Sivakumar, Somu Chitra

International Journal of Life Sciences Research

ISSN 2348-313X (Print), ISSN 2348-3148 (online)

Vol. 12, Issue 2, April 2024 - June 2024

Page No: 12-24

Research Publish Journals

Website: www.researchpublish.com

Published Date: 07-May-2024

Abstract: Fecundity is reproductive capacity of a fish determined by the number of eggs stored in each  spawning  season  and  its  knowledge  is  extremely important in successful management and exploitation of its fishery.

All together 10 specimen of Notopterus chitala were examined with a view to determine the average number of eggs produced by each species and also to find out the relationship between fecundity and variables such as total length, body weight, gonad length and gonad weight of the fish.

By using (Lacrane, 1951) equation follows the relationship between fecundity and variables are calculated.

The fecundity of Notopterus chitala is ranged from 133 to 1803.

Keywords: Fecundity, Notopterus chitala.

Title: Fecundity of Fish Notopterus chitala (Hamilton, 1822) from Godavari River, at Nanded (Maharashtra), India

Author: AJAY HIWARE, KIRAN SHILLEWAR

International Journal of Life Sciences Research

ISSN 2348-313X (Print), ISSN 2348-3148 (online)

Vol. 12, Issue 2, April 2024 - June 2024

Page No: 9-11

Research Publish Journals

Website: www.researchpublish.com

Published Date: 24-April-2024

Abstract: The development of livestock businesses is aimed at increasing food security and increasing people's purchasing power through increasing income. In order to achieve this goal, the strategy used is to increase active community participation, encourage investment in livestock businesses in rural areas and empower livestock farming communities. This research aims to analyze the internal and external factors of livestock business development strategies, formulate strategies for developing beef cattle farming businesses, and formulate strategic priorities for developing beef cattle farming businesses in the Indonesian People's Animal Husbandry School Alumni Solidarity (SASPRI) South Dolo District, Sigi Regency.This research was carried out in the monthApril–June 2023.This research method uses the Case Study method using SWOT analysis and QSPM analysis. The informants selected were 8 beef cattle breeders.The research results on the EFI matrix assessment were 2.512 and the EFE matrix was 2.26so the business positionlocated incell V whereuStocks like this are best managed with hold and maintain strategies. Strategies that can be carried out based on SWOT analysis areproperly maintain existing resources to increase beef cattle productivity to meet local supply needs. Increase knowledge about processing livestock waste products which can provide profitable income.

Keywords: Beef Cattle, SWOT Analysis, QSPM, Beef Cattle Business Development Strategy, SASPRI.

Title: Development Strategies Foor Beef Catte Farming in the Solidarity of Alumni Indonesian People’s School of Animal Husbandry (SASPRI) in South Dolo Sub-District Sigi Regency

Author: Moh. Teguh Maulana, Yudi Mujayin, Sayekti Handayani, Haerani Maksum, Ritha Rahayu, Suharno H Syukur

International Journal of Life Sciences Research

ISSN 2348-313X (Print), ISSN 2348-3148 (online)

Vol. 12, Issue 2, April 2024 - June 2024

Page No: 1-8

Research Publish Journals

Website: www.researchpublish.com

Published Date: 20-April-2024