Trichinosis in sows slaughtered at a Kentucky abattoir

From July 26 to 30, 1976, diaphragmatic pillar samples were collected from 513 sows slaughtered at a federally inspected abattoir in Kentucky. The sows represented 5 marketing areas: Rushville, In (186); Cincinnati, Oh )158); Indianapolis, In (70); Georgetown, Ky (54); and Columbus, Oh (45). Using the pooled-sample digestion technique, 3 dead trichina larvae were identified in 1 sample pooled from 15 diaphragms (10 g each). An attempt to identify the individually infected sow(s) was unsuccessful, but the pooled sample originated from animals marketed at Rushville, In. The prevalence (1 of 513) was 0.194%.