Table 1. Effects of foot-and-mouth disease vaccination location and injection device1) on the incidence of injection site lesions in pork and associated economic losses.
Variables | N-Neck | N-Ham | Non-Neck |
---|---|---|---|
Gross lesions, n (%) | 19/71 (26.8)a | 7/70 (10.0)b | 35/135 (25.9)a |
Severe abscess | 7/71 (9.9)a | 1/70 (1.4)b | 15/135 (11.1)a |
Discoloration of meat and granuloma | 12/71 (16.9)a | 6/70 (8.6)b | 20/135 (14.8)a |
Economic losses | |||
Condemned meat (total, kg) | 10.9 | 3.3 | 91.0 |
Condemned meat (ave., kg)2) | 0.57±0.05b | 0.47±0.12b | 2.60±0.11a |
Economic losses (total, US Dollars) | 32.9 | 10.0 | 274.8 |
Economic losses (ave., US Dollars)2 | 1.73±0.17b | 1.42±0.28b | 7.90±0.34a |
1) Vaccine was administered on the left side of the pig, either with a conventional needle-syringe or a needle-free injection device at 56 d of age.
2) Values are mean±SEM.
a-c Means with different superscript letters in the same row differ significantly (p<0.05).
N-Neck, conventional needle-syringe vaccination into the neck (n=71); N-Ham, conventional needle-syringe vaccination into the ham (n=70); Non-Ham, conventional needle-free jet injection vaccination into the neck (n=135).