Table 4.
Preventive health measures were adopted by fixed (FMP) and mobile (MMS) milking system farms.
| Factor | Farms | p Value | |
|---|---|---|---|
| FMP | MMS | ||
| Preventive measures | |||
| Disease prevalence monitoring (serum samples) | 1.1% (1/87) (1) | 11.1% (2/18) | 0.02 |
| Parasitic disease monitoring (faecal samples) | 0.0% | 0.0% | - |
| Mineral monitoring (serum samples) | 0.0% | 0.0% | - |
| Mineral diet supplementation during dry period | 62.1% (54/87) | 50.0% (8/18) | 0.17 |
| Insecticide during hot season/periods | 86.2% (75/87) | 66.7% (12/18) | 0.05 |
| Regular deworming | 56.3% (49/87) | 50.0% (9/18) | 0.42 |
| Vaccination *: | |||
| Clostridial diseases (n = 3) | 1.1% (1/87) a | 11.1% (2/18) | 0.02 |
| IBR/BVD (n = 37) | 36.8% (32/87) b | 27.8% (5/18) | 0.47 |
| Mastitis (n = 16) | 13.8% (12/87) c | 22.2% (4/18) | 0.37 |
| Respiratory complex disease (n = 16) | 14.9% (13/87) c | 16.7% (3/18) | 0.90 |
%: Percentage of farms with an affirmative response. (1) (n/N): Number of affirmative responses/number of total respondents. a, b, c Different superscript letters for the same column: p < 0.01. n: number of farms with an affirmative response. Omitted values means n = 105. * total of farms using vacines = 61 (some farms used more than one vaccine type). Abbreviations: BVD, bovine viral diarrhea; IBRV, infectious bovine rhinotracheitis.