Status, evaluation, and influencing factors of biosecurity levels in pig farms in China

BMC Veterinary Research

Table 3 Basic characteristics of survey sample distribution

Variable	Classification	Sample Size	Proportion/%	Variable	Classification	Sample Size	Proportion/%
Gender	Man	204	82.93	Technical training	Accepted	194	78.86
Gender	Woman	42	17.07	Technical training	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
Production organization form	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

ISSN: 1746-6148