Retrospective study of porcine reproductive and respiratory (PRRS) syndrome serology status among serology samples submitted to the Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM) from 2019 to 2021

Ahmad Sukri, Amir Shauqi (2022) Retrospective study of porcine reproductive and respiratory (PRRS) syndrome serology status among serology samples submitted to the Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM) from 2019 to 2021. [Project Paper] (Submitted)

Text lp FPV 2022 83.pdf Download (1MB)

Abstract

Porcine Reproductive and Respiratory Syndrome (PRRS) in swine is a viral disease caused by the PRRS virus. PRRS is regarded as a costly disease globally due to its severe impacts, such as reproductive losses, respiratory sickness, decreased growth rate, and increased mortality. PRRSV is classified into two types: PRRSV-1 is prevalent in Europe, and PRRSV-2 is prevalent in the Americas and Asia. In Malaysia, there is a limited study on the current serological status and prevalence of PRRS in swine. Thus, this study aims to determine the PRRS serological status of blood samples submitted to the Faculty of Veterinary Medicine, UPM, from 2019 to 2021. Blood samples from 101 farms in Johor, Melaka, Selangor, Perak and Penang were used in the study. The samples were divided into 4 to 20-week-old age groups, gilts and sows. Blood was analysed using the IDEXX HerdChek® PRRS X3 anti-PRRSv antibody ELISA test kit and IDEXX xChek Plus® software. The research employed a PRRS status categorisation approach based on sample-to-positive (S/P) ratio and coefficient of variation (CV%) of ELISA data into three categories ‘good’, ‘moderate’ and ‘poor’. The average seropositive of all farms from 2019 to 2021 was 93.1%, with weaners aged 4 to 8 weeks contributing most of the seronegative among farms. The majority of swine farm status was classified as ‘good’ (52%). A total of 46.5% and 38.6% were classified as ‘good’ and ‘moderate’ in breeding herds, with gilts having better PRRS status than sows. In contrast, most growing herds were classified as ‘moderate’, accounting for 77.5% of the total farm. However, in growing herds, swine aged 12 to 20 weeks showed a better PRRS status than those aged 4 to 8 weeks. In conclusion, the PRRS serology status obtained from serology samples is similar between states; however, it varies between herds and age groups.

Item Type:	Project Paper
Faculty:	Faculty of Veterinary Medicine
Depositing User:	Ms Nurhaznita Mahmood
Date Deposited:	30 May 2024 07:53
Last Modified:	30 May 2024 07:53
URI:	http://psaspb.upm.edu.my/id/eprint/1847

Actions (login required)

View Item