Incidence of Listeria spp. in Dairy Cows Feed and Raw Milk in Latvia

Table 2

Share of Listeria spp. and Listeria monocytogenes in feed depending of type of farm and season.

Season	Organic farming			Conventional farming
	Number of samples	Listeria spp., 𝑛 (%)	L. monocytogenes, 𝑛 (%)	Number of samples	Listeria spp., 𝑛(%)	L. monocytogenes, 𝑛 (%)
Winter	19	4 (7.4)	10 (18.5)	30	2 (2.6)	8 (10.5)
Spring	14	2 (3.7)	2 (3.7)	14	0	0
Summer	6	0	0	14	0	0
Autumn	15	2 (3.7)	4 (7.4)	18	2 (2.6)	2 (2.6)
Total	54	8 (14.8)	16 (29.6)	76	4 (5.2)	10 (13.1)