Table 4.
Variable | Category | Number of farms1 |
P-value | |
---|---|---|---|---|
Case | Control | |||
Milk feeding | Whole milk | 44 | 40 | |
Milk replacer | 1 | 5 | 0.89 | |
Both | 5 | 5 | 0.20 | |
Feeding waste milk to calves | No | 8 | 9 | |
Only to male calves | 24 | 24 | 0.84 | |
To all calves (males and females) | 17 | 17 | 1.00 | |
No answer | 1 | 0 | ||
Quantity of milk fed | Ad libitum | 2 | 2 | |
Restricted (10 to 12% of calf BW) | 48 | 48 | ||
Type of feeding | Bucket with artificial teat | 49 | 46 | |
Bucket without artificial teat | 0 | 2 | 0.54 | |
Automated milk feeder | 1 | 2 | 0.99 | |
Cleaning of bucket after each feeding | No | 2 | 1 | |
Yes | 48 | 49 | 0.62 | |
Cleaning of bucket | With cleaning agents | 9 | 15 | |
Only water | 37 | 35 | 0.35 | |
Buckets shared by calves | No | 11 | 12 | |
Yes | 39 | 38 | ||
Weaning age (wk) | Median2 | 10.0 | 9.0 | 0.63 |
IR3 (25 to 75%) | 8.0 to 12.0 | 8.0 to 12.0 | ||
Access to hay from wk 2 of life | No | 9 | 9 | |
Yes | 41 | 38 | 0.75 | |
Variable | 0 | 3 | 0.69 | |
Access to concentrates from first 3 wk of life | No | 12 | 13 | |
Yes | 33 | 35 | 0.28 | |
Variable | 5 | 2 | 0.26 | |
Access to water preweaning | No | 7 | 4 | |
Free access | 19 | 22 | 0.42 | |
Restricted access | 24 | 24 | 0.73 |
Case farms are farms with the presence of diarrhea; control farms are farms without calf diarrhea.
Variable was not categorized; continuous variable.
IR = interquartile range.