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Table 8 Results of bacteriological, biochemical and macroscopic analysis of the drinking water used in both stables

From: Porcine ear necrosis in weaned piglets: prevalence and impact on daily weight gain

Parameter Result Laboratory reference values
Macroscopic evaluation
Physical appearance Orange sediment Bright
Smell No No
Color Yellowish Colorless
Bacteriological analysis
Number of coliforms (cfu/ml) 0 < 100
Intestinal enterococci (cfu/100 ml) 2 < 1
Sulfite-reducing clostridia (cfu/ 20 ml) 1 < 1
Aerobic bacteria (22 °C) in total (cfu/ml) 2400 < 100,000
Aerobic bacteria (37 °C) in total (cfu/ml) 530 < 100,000
Chemical analysis
pH 7.70 4–9
Ammonium (mg/l) 0.78 ≤ 2
Nitrates (mg/l) < 10 ≤ 200
Nitrites (mg/l) < 0.10 ≤ 0.5
Sulfates (mg/l) < 5.0 ≤ 250
Total hardness (°D) 13.0 ≤ 20
NaCl (mg/l) 26.0 ≤ 3000