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Table 1 Water activity and dry matter content of the tested organic materials

From: Examination of the hygienic status of selected organic enrichment materials used in pig farming with special emphasis on pathogenic bacteria

Material Water activity (aw) Dry matter content (%)
Wooden materials
 Wood granulate 0.70 85.80
 Wood shavings 0.60 86.81
 Sawdust 0.55 89.79
 Millings 0.36 98.58
Loose straw and hay
 Flax straw 0.65 85.70
 Wheat, rye, triticale straw meal 0.52 87.91
 Alfalfa hay 0.53 88.45
 Rye straw meal 0.48 88.29
 Hemp straw 0.61 86.85
 Hay (from farm) 0.59 85.61
 Wheat straw (from farm) 0.61 86.78
Compressed straw and hay
 Compressed straw cylinder 0.42 89.17
 Straw pellets 0.53 90.26
 Hay pellets 0.41 90.92
 Miscanthus cylinder 0.51 91.00
Miscellaneous
 Beet pulp with molasses 0.50 93.76
 Maize pellets 0.54 93.56
 Peat 0.95 31.83
 Lick block n.a. a n.a. a
 Lignocellulose 0.59 88.48
 Maize silage 0.94 27.13
  1. an.a., not applicable