Table 5.
Salmonella serotype prevalences on swine carcasses
| Plant, season, and sampling day | Serotype (no. of samples isolated from carcasses)a |
||
|---|---|---|---|
| Prescald carcass | Preevisceration carcass | Chilled final carcass | |
| Plant A | |||
| Summer | |||
| Day 1 | MNS (67), TYP (17), ANA (17), MVD (10), SEN (8), DER (6), AGN (4), INF (4), KEN (2), CUB (1), DJU (1), NT (1) | LDN (9), MNS (7), TYP (2), DER (1), II (1) | JOH (14), CER (1), TYP (1) |
| Day 2 | DER (47), TYP (42), MNS (25), LDN (15), CER (14), KEN (13), SEN (5), ANA (4), THO (4), WOR (2), AGN (1), MBA (1), MVD (1), NT (1) | ALT (5), DER (4), LDN (3), WOR (1) | JOH (8) |
| Fall | |||
| Day 1 | TYP (94), ANA (30), MBA (12), DER (12), LDN (8), MVD (6), KEN (3), SEN (2), INF (1), MNS(1), MO7 (1), NT (1) | TYP (8), MBA (6), INF (2), DER (1) | −b |
| Day 2 | DER (43), TYP (40), ANA (21), JOH (18), MVD (16), KEN (12), MBA (9), LDN (8), CER (3), SEN (2), MNS (1), TOU (1) | MBA (7), DER (2), TYP (1) | − |
| Winter | |||
| Day 1 | ANA (35), DER (34), TYP (25), UGA (8), LDN (7), BRD (3), AGN (2) | TYP (15), INF (1) | TYP (1) |
| Day 2 | LDN (92), ANA (42), DER (5), TYP (1), NT (1) | LDN (54), TYP (10), ANA (3), SEN (2), DER (1), MNC (1), UGA (1), NT (1) | DER (3), TYP (2), ANA (1), MNC (1) |
| Spring | |||
| Day 1 | TYP (95), PUT (55), DER (24), OHI (8), LDN (4), BRD (4), ANA (1), MNS (1) | TYP (59), AGN (6), LDN (4), PUT (2), SEN(2) | INF (2), TYP (1) |
| Day 2 | BDB (75), TYP (35), LDN (26), DER (15), BRD (14), PUT (6), OHI (4), ANA (2), CUB (2), SPA (2), INF (1), NT (1) | BDB (18), DER (15), TYP (8), SPA (1), INF (1), SWZ (1) | TYP (12), PUT (2) |
| Plant B | |||
| Summer | |||
| Day 1 | DER (58), AGN (22), SWZ (10), TYP (4), HAD (2), OHI (2), LEX (1), LDN (1), SEN (1), NT (1) | RIS (2), NT (2), DER (1) | − |
| Day 2 | AGN (30), DER (21), SPA (19), TYP (10), SWZ (3), NT (2), HEI (1), MVD (1), MNC (1) | OHI (6), TYP (3), BUK (1), NT (1) | − |
| Fall | |||
| Day 1 | ANA (28), DER (23), MIN (7), TYP (7), HAV (4), AGN (3), MBA (3), SWZ (3), KRE (2), BRD (1), JOH (1) | AGN (3), DER (1) | − |
| Day 2 | TYP (24), DER (22), OHI (7), MBA (3), KRE (2), ANA (1), RIS (1), SEN (1), NT (1) | HEI (1) | − |
| Winter | |||
| Day 1 | DER (71), KRE (40), INF (19), HEI (7), TYP (5), ADE (5), LDN (4), BER (2), JAM (2), BOV (1), MEL (1), MNS (1) | TYP (1), MO6 (1) | − |
| Day 2 | AGN (86), ANA (56), DER (25), INF (21), TYP (3), MEL (1), UGA (1) | AGN (15), DER (1), INF (1) | MO6 (5) |
| Spring | |||
| Day 1 | ANA (73), INF (39), DER (24), AGN (18), TYP (9), IDK (1), LDN (1) | INF (4), AGN (3), TYP (2), ANA (1), DER (1), SWZ (1) | TYP (1) |
| Day 2 | INF (93), DER (7), ANA (6), AGN (4), MBA (2), JOH (1), MNC (1), TYP (1) | INF (4) | DER (1) |
Salmonella serotype abbreviations: ADE, Adelaide; AGN, Agona; ALT, Altona; ANA, Anatum; BER, Berta; BOV, Bovismorbificans; BDB, Brandenburg; BRD, Bredeney; BUK, Bukuru; CER, Cerro; CUB, Cubana; DER, Derby; DJU, Djugu; HAD, Hadar; HAV, Havana; HEI, Heidelberg; IDK, Idikan; II, II (3,10;lv;enx); INF, Infantis; JAM, Jamaica; JOH, Johannesburg; KEN, Kentucky; KRE, Krefeld; LEX, Lexington; LDN, London; MBA, Mbandaka; MEL, Meleagridis; MIN, Minnesota; MO6, monophasic (6,7:−:1,5); MO7, monophasic (7:z10:−); MVD, Montevideo; MNC, Muenchen; MNS, Muenster; NT, not typeable; OHI, Ohio; PUT, Putten; RIS, Rissen; SPA, Saintpaul; SWZ, Schwarzengrund; SEN, Senftenberg; THO, Thompson; TOU, Tounouma; TYP, Typhimurium; UGA, Uganda; WOR, Worthington.
−, Salmonella was not isolated.