Occurrence and distribution of gross and microscopic gastrointestinal lesions in pigs in Northern Kerala
Gastroenteritis in swine herds pose a big constraint in pig farming due to the economic losses accompanying it. The present study utilised 57 pig carcasses to assess the occurrence and distribution of various gastrointestinal lesions in pigs in Northern Kerala. Gross changes in stomach were obser...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Director of Academics and Research, Kerala Veterinary and Animal Sciences University
2022-12-01
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| Series: | Journal of Veterinary and Animal Sciences |
| Subjects: | |
| Online Access: | https://jvas.in/public_html/upload/article_file/article_file_rnwf10.pdf?t=rnwf10 |
| Summary: | Gastroenteritis in swine herds pose a big constraint in pig farming due to the economic
losses accompanying it. The present study utilised 57 pig carcasses to assess the occurrence and
distribution of various gastrointestinal lesions in pigs in Northern Kerala. Gross changes in stomach
were observed in 84.21 per cent of carcasses in which mucosal congestion (61.40 per cent) was
the most frequent lesion. Principal microscopic gastric lesions observed were mucosal necrosis,
cellular infiltration in lamina propria, hyperplastic epithelium, hyperkeratinisation and fibrino-necrotic
membrane. Gross changes in at least one region of intestine were evident in all the samples.
The most common lesions in intestines were engorgement of mesenteric blood vessels (80.70
per cent) followed by catarrhal enteritis (73.68 per cent). Salient gross lesions such as mucosal
ulcers were observed only in caecum and colon, diphtheritic membrane formation was observed in
ileum, caecum and colon. Major histological lesions observed in intestines were mucosal necrosis
(89.47 per cent) followed by cellular infiltration in lamina propria (68.42 per cent). Histologically,
the major site-specific lesions observed were Brunner gland hyperplasia in duodenum, necrosis,
hyperplasia, and lymphocytic depletion of Peyer’s patches in ileum, granulomatous infiltration in
ileum and colon, neutrophilic colitis and goblet cell depletion in colon. The present study observed
a higher incidence of gastrointestinal variations in pigs irrespective of age and further research is
needed to understand the etiological factors contributing to such heavy burden of gastrointestinal
lesions. |
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| ISSN: | 0971-0701 2582-0605 |