Year 2023, Volume 8, Issue 2

Year : 2023
Volume : 8
Issue : 2
   
Authors : Jurgita DAILIDAVIČIENĖ, Lina MERKEVIČIENĖ, Sigita KERZIENĖ, Rūta BUDRECKIENĖ
Title : DETERMINATION OF SALMONELLA ANTIBODY TITERS IN THE MEAT OF HEALTHY AND PNEUMONIA DISEASED PIGS
Abstract : Salmonella is the most common pathogenic microorganism found throughout the environment and common source of bacterial foodborne-related illness. A practical tool for detecting Salmonella infection in slaughtered pigs is the serological examination of meat juice. Salmonella was determined in meat juices from healthy and pneumonia diseased pigs. Salmonella antibodies in pig meat juice were determined by a screening immunoenzymatic analysis method using the IDEXX HerdChek Swine Salmonella Test Kit (IDEXX Laboratories, Switzerland). The samples were evaluated according to the optical density ratio of the test sample and the positive control sample. Meat samples from diaphragm pillars were taken from 277 pigs at slaughter house. A total of 63 samples were serologically positive from all tested pig meat juice samples (22.74 %) (CI95 % 18.2 – 28.0 %). One positive sample was found in the meat juice of healthy pigs, while 25 and 37 samples were found to be seropositive in the diseased pig groups, with S/P of 0.76 (p < 0.001) and 0.91 (p < 0.001) respectively. In pigs with pathological lung changes 35.23 % seropositive samples of all diseased pigs were found. S/P ratio in control group was 0.08 while in pig with different lung lesions meat juice samples S/P ration reached 0.25 and 0.32 respectively (p < 0.001). The lowest S/P value in meat juice samples were found in pigs with moderate lung lesions and were found in 56.88 % meat juice samples, while in pigs with intensive lung lesions meat juice samples S/P ratio was 58.13 % (p < 0.001). The highest S/P value was found in pigs with intensive lung lesions and reached 0.77 % of all tested samples.
For citation : Dailidavičienė, J., Merkevičienė, L., Kerzienė, S., Budreckienė, R. (2023). Determination of salmonella antibody titers in the meat of healthy and pneumonia diseased pigs. AGROFOR International Journal, Volume 8. Issue No. 2. pp. 94-102. DOI: 10.7251/AGRENG2302094D
Keywords : Salmonella, pigs, meat juice, antibody detection.
   
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