Table 5 Results of bacteriological, biochemical, and macroscopic analysis of the drinking water in the three farms.
From: Porcine ear necrosis: characterization of lesions and associated pathogens
Parameter | Farm A | Farm B | Farm C | Laboratory reference values |
|---|---|---|---|---|
Macroscopic evaluation | ||||
Physical appearance | Bright | Bright | Brown sediment | Bright |
Smell | Light smell | No | Light smell | No |
Color | Colorless | Colorless | Colorless | Colorless |
Bacteriological analysis | ||||
Number of coliforms (cfu/mL) | 0 | 0 | 10 | < 100 |
Intestinal enterococci (cfu/100 mL) | 2 | > 100 | > 100 | < 1 |
Sulfite-reducing clostridia (cfu/20 mL) | 0 | 0 | 21 | < 1 |
Aerobic bacteria (22 °C) in total (cfu/mL) | 1010 | 1300 | 7000 | < 100 000 |
Aerobic bacteria (37 °C) in total (cfu/mL) | 650 | 13 | 800 | < 100 000 |
Chemical analysis | ||||
pH | 3.7 | 7.5 | 7.3 | 4–9 |
Ammonia (mg/L) | 145.7 | 0.2 | 0.9 | ≤ 2 |
Nitrates (mg/L) | 69.0 | < 10.0 | 12.0 | ≤ 200 |
Nitrites (mg/L) | < 0.1 | < 0.1 | < 0.1 | ≤ 0.5 |
Sulfates (mg/L) | 115.0 | 81.0 | 20.0 | ≤ 250 |
Total hardness (°D) | 29.9 | 13.0 | 4.4 | ≤ 20 |
NaCl (mg/L) | 93.0 | 69.0 | 27.0 | ≤ 3000 |