Porcine respiratory disease complex (PRDC) in Indian pigs: a slaughterhouse survey. 2023

Jigarji Chaturji Thakor, and Monalisa Sahoo, and Karam Pal Singh, and Rajendra Singh, and Salauddin Qureshi, and Ajay Kumar, and Pradeep Kumar, and Sagar Patel, and Rohit Singh, and Nihar Ranjan Sahoo
Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, India.

Porcine Respiratory Disease Complex (PRDC) is an unequivocally leading cause of economic losses to the pig industry. To investigate the pathogens associated with PRDC, a total of 900 lungs with gross lesions and 125 lungs with no appreciable gross lesions were collected from the abattoirs and subjected to pathological investigation for distribution of lesions/and types of exudates, as well as to molecular confirmation of bacterial and viral pathogens by PCR. The pneumonic lungs showed the higher prevalence of Mycoplasma spp. (31.22%), with evidence of M. hyorhinis, P. multocida (21.33%), S. suis (18.66%), B. bronchiseptica (16.77%), and viral pathogens as porcine circovirus type 2 (PCV2) (28.11%), porcine reproductive and respiratory syndrome virus (PRRSV) (2.7%) and swine influenza virus (SIV) (1.2%). On histopathological examination, high prevalence of bronchopneumonia (37.88%) followed by enzootic pneumonia‑like lung lesions (11.44%), and interstitial pneumonia (7.44%) was recorded in the majority of affected pigs. The winter season was found to be more conducive for highest prevalence of pneumonia as compared to other seasons. The present study reports the high prevalence of PRDC in slaughtered pigs of India. M. hyorhinis showing the EP‑like lesions, PCV2 and their combination were likely to be the prime contributors of PRDC in Indian pigs.

UI MeSH Term Description Entries
D011014 Pneumonia Infection of the lung often accompanied by inflammation. Experimental Lung Inflammation,Lobar Pneumonia,Lung Inflammation,Pneumonia, Lobar,Pneumonitis,Pulmonary Inflammation,Experimental Lung Inflammations,Inflammation, Experimental Lung,Inflammation, Lung,Inflammation, Pulmonary,Inflammations, Lung,Inflammations, Pulmonary,Lobar Pneumonias,Lung Inflammation, Experimental,Lung Inflammations,Lung Inflammations, Experimental,Pneumonias,Pneumonias, Lobar,Pneumonitides,Pulmonary Inflammations
D012140 Respiratory Tract Diseases Diseases involving the RESPIRATORY SYSTEM. Respiratory Diseases,Respiratory System Diseases,Disease, Respiratory System,Disease, Respiratory Tract,Respiratory System Disease,Respiratory Tract Disease
D000003 Abattoirs Places where animals are slaughtered and dressed for market. Slaughterhouses,Slaughter House,Slaughter Houses,Abattoir,House, Slaughter,Houses, Slaughter,Slaughterhouse
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D013553 Swine Diseases Diseases of domestic swine and of the wild boar of the genus Sus. Disease, Swine,Diseases, Swine,Swine Disease
D016979 Pasteurella multocida A species of gram-negative, facultatively anaerobic, rod-shaped bacteria normally found in the flora of the mouth and respiratory tract of animals and birds. It causes shipping fever (see PASTEURELLOSIS, PNEUMONIC); HEMORRHAGIC BACTEREMIA; and intestinal disease in animals. In humans, disease usually arises from a wound infection following a bite or scratch from domesticated animals.
D017925 Circovirus A genus of the family CIRCOVIRIDAE that infects SWINE; PSITTACINES; and non-psittacine BIRDS. Species include Beak and feather disease virus causing a fatal disease in psittacine birds, and Porcine circovirus causing postweaning multisystemic wasting syndrome in pigs (PORCINE POSTWEANING MULTISYSTEMIC WASTING SYNDROME). Beak and feather disease virus,Circovirus, Porcine,Porcine Circovirus,Circoviruses, Porcine,Porcine Circoviruses
D019316 Porcine respiratory and reproductive syndrome virus A species of ARTERIVIRUS causing reproductive and respiratory disease in pigs. The European strain is called Lelystad virus. Airborne transmission is common. Lelystad Virus,PRRSV,Swine Infertility and Respiratory Syndrome Virus,Porcine Reproductive and Respiratory Syndrome Virus,Swine Infertility Respiratory Syndrome Virus

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