Table 1 Distribution of number of finishers and sows for all conventional and organic pig herds registered in CHR in 2016 and for conventional and organic pig herds registered in CHR and with antimicrobial prescription data in VetStat in 2016. The p-value reflects the statistical differences in number of animals for conventional and organic pig herds
Herds in CHR | Herds in CHR with antimicrobial prescriptions | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of sowsa | Number of finishersb | Number of sowsa | Number of finishersb | |||||||||
Conv. (N = 1949) | Org. (N = 73) | P-value | Conv. (N = 5556) | Org. (N = 102) | P-value | Conv. (N = 1755) | Organic (N = 29) | P-value | Conv. (N = 4819) | Organic (N = 51) | P-value | |
Min | 1 | 1 | P < 0.01 | 1 | 2 | P < 0.01 | 1 | 3 | P < 0.01 | 2 | 10 | 0.04 |
1st quartile | 250 | 4 | 300 | 17 | 350 | 100 | 300 | 445 | ||||
Median | 500 | 16 | 880 | 200 | 550 | 200 | 900 | 750 | ||||
3rd quartile | 750 | 200 | 1600 | 750 | 800 | 360 | 1700 | 1465 | ||||
Max | 3750 | 910 | 12,000 | 4000 | 3750 | 910 | 12,000 | 4000 | ||||