From: Status, evaluation, and influencing factors of biosecurity levels in pig farms in China
Variable | Classification | Sample Size | Proportion/% | Variable | Classification | Sample Size | Proportion/% |
---|---|---|---|---|---|---|---|
Gender | Man | 204 | 82.93 | Technical training | Accepted | 194 | 78.86 |
Woman | 42 | 17.07 | Not accepted | 52 | 21.14 | ||
Age |  < 35 yr old | 19 | 7.72 | Breeding years | 1–5 yr | 53 | 21.54 |
35–44 yr old | 43 | 17.48 | 6–10 yr | 69 | 28.05 | ||
45–54 yr old | 123 | 50 | 1–15 yr | 55 | 22.36 | ||
55–64 yr old | 50 | 20.33 | 16–20 years | 42 | 17.07 | ||
 > 65 yr old | 12 | 4.47 |  > 20 years | 28 | 10.98 | ||
Years of education | 0–5 yr | 12 | 4.88 | Proportion of pig raising income to total family income | Under 25% | 6 | 2.44 |
6–10 yr | 149 | 60.57 | 25–49% | 13 | 5.28 | ||
11–15 yr | 72 | 29.27 | 50–74% | 38 | 15.45 | ||
16–20 yr | 14 | 5.28 | 74% above | 189 | 76.83 | ||
Production organization form | Cooperative farms | 195 | 79.27 | Level of operation scale | Less than 100 heads | 81 | 32.93 |
Others | 51 | 20.73 | 100–499 head | 62 | 25.20 | ||
Breeding mode | Self-breeding | 170 | 69.11 | 500–999 head | 33 | 13.41 | |
Commercial pig fattening | 65 | 26.42 | 1000–4999 heads | 61 | 24.80 | ||
Piglet breeding | 11 | 4.47 | Over 5000 heads | 9 | 3.66 |