Table 1.

Generalized linear regression model evaluating proportion of time with a fecal score ≥2 in the first 28 d following arrival in 320 calves randomly assigned to 1 of 3 milk replacers¹

Variable	Proportion ratio	Coefficient	P-value	95% CI
Treatment group
CON	Referent
P5	1.29	0.26	0.14	−0.08 to 0.59
P10	1.39	0.33	0.07	−0.03 to 0.68
BW at arrival
<44.5 kg	Referent
44.5 to 47.6 kg	0.79	−0.23	0.26	−0.62 to 0.17
47.6 to 50.8 kg	0.75	−0.29	0.14	−0.68 to 0.10
>50.8 kg	0.47	−0.76	<0.001	−1.14 to −0.37
Source
Local dairy farms	Referent
Order buyer	1.61	0.48	0.02	0.07 to 0.88
Auction	0.97	−0.03	0.85	−0.36 to 0.30
Arrival group/room
0	Referent
1	0.82	−0.19	0.29	−0.56 to 0.17
2	0.85	−0.16	0.44	−0.58 to 0.26
3	0.88	0.13	0.52	−0.54 to 0.27
Constant	0.09	−2.41	<0.001	−2.97 to −1.84

¹Treatments: CON = all-milk-protein MR; P5 = 15% of CP replaced with spray-dried porcine plasma included at 5% of the absolute formula; P10 = 30% of CP replaced with spray-dried porcine plasma included at 10% of the absolute formula.