Cost and benefit of vibriosis vaccination on marine cage farm

Wan Ahmad Sufian, Wan Shafiqa (2023) Cost and benefit of vibriosis vaccination on marine cage farm. [Project Paper] (Submitted)

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Abstract

Vaccination is the safest and effective intervention to protect marine fish against vibriosis and prevent high mortality and severe economic losses to farmers. The objective of this study is to estimate the cost and benefits of vibriosis vaccination on marine cage farms to improve awareness to the stakeholders to make decisions on using the vaccine. The oral feed-based vaccine was given at a marine cage farm in Pulau Ketam for three days during week 0, week 2 and week 6 of grow-out period where the amount given is according to the feed requirement of fish. In the first analysis, partial budget model was deployed and used cost benefit analysis in Excel®. In the model, the net benefit was calculated as the difference between total benefit (sum of added gain and reduced cost) and total loss (sum of added cost and revenue foregone). The added gain from vaccination are increased survival rate and weight, reduced cost are reduced production cycle, maintenance cost, utility cost, petrol cost and disposal cost, added cost are vaccine cost, labour cost in administering vaccine and increased feed consumption, and revenue foregone are none. The second analysis estimated the threshold price of vaccines by using add-in SOLVER in Microsoft Excel. Three scenarios were created comparing vaccinated and non-vaccinated scenario; the baseline scenario (change in survival=6%), best-case scenario (change in survival=0%) and worst-case scenario (change in survival=21%), where the model will find the optimal vaccine price when the net benefit is set to be equal to RM0 or there is no benefit or loss. The model inputs were based on previous developed stochastic animal level models and literature related to the vibrio vaccine. Results showed net benefits of RM 1.13 per tail of fish when implementing vibriosis vaccination as compared to not vaccinating where, the total benefit was RM1.72 per tail, while total loss was RM0.59 per tail. The threshold price estimated the vaccine optimal price in the baseline scenario is at RM 19.75 per dose. Meanwhile, for the best-case scenario for example in an area without Vibriosis problem, the vaccine’s optimal price is RM 6.61 per dose. In the worst-case scenario for example in an area where there is a risk of a vibriosis outbreak, the vaccine 's optimal price is at RM 52.54 per dose. This study revealed that investing in vaccination will give economic benefit to the farm especially in high-risk areas.

Item Type:	Project Paper
Faculty:	Faculty of Veterinary Medicine
Depositing User:	Ms Nurhaznita Mahmood
Date Deposited:	12 Aug 2024 03:16
Last Modified:	12 Aug 2024 03:16
URI:	http://psaspb.upm.edu.my/id/eprint/2043

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