. 2018 Sep 4;96(10):4385–4397. doi: 10.1093/jas/sky272

Table 5.

Plasma acute phase protein concentration in finishing steers fed a diet supplemented with antibiotics (ANT), active dried yeast (ADY), encapsulated ADY (EDY), or mixture of ADY and EDY (MDY)

	Treatments²
Item¹	Control	ANT	ADY	EDY	MDY	SEM	P <
Animal#³	10	10	10	10	10
Hp, µg/mL
Day 0	338	304	304	403	381	44.3	0.42
Day 56	197	213	188	177	236	20.9	0.32
Day 112	202^b	164^b	356^a	359^a	372^a	22.0	0.01
Linear	0.01	0.01	0.23	0.25	0.81
Quadratic	0.05	0.53	0.01	0.01	0.01
SAA, µg/mL
Day 0	5.82	4.53	3.97	4.43	5.98	0.69	0.18
Day 56	5.54	5.92	3.54	5.24	5.03	0.63	0.14
Day 112	6.66^a	4.36^b,c	5.60^a,b	4.06^c	4.03^c	0.47	0.01
Linear	0.33	0.88	0.04	0.65	0.02
Quadratic	0.35	0.04	0.09	0.15	0.97
LBP, µg/mL
Day 0	17.96	15.31	13.93	14.95	18.71	1.66	0.21
Day 56	17.13^b	25.43^b	22.90^b	33.78^a	32.99^a	2.79	0.01
Day 112	39.73	38.12	40.71	31.42	31.62	4.13	0.33
Linear	0.01	0.01	0.01	0.01	0.01
Quadratic	0.01	0.72	0.23	0.01	0.03

^a,b,cLeast square means within a row with different superscripts differ (P < 0.05).

¹Hp = haptoglobin; SAA = serum amyloid A; LBP = lipopolysaccharide binding protein.

²Control = no yeast and no antibiotics; ANT (330 mg monensin + 110 mg tylosin·steer⁻¹d⁻¹); ADY (1.5 g ADY·steer⁻¹d⁻¹); EDY (3 g·steer⁻¹d⁻¹; EDY consisted of 1.5 g ADY and 1.5 g capsule material); and MDY (1.5 g ADY + 3.0 g EDY·steer⁻¹d⁻¹); Treatment × days on-feed was significant at P < 0.01 for Hp, SAA and LBP.

³Ten steers from each treatment group were randomly selected for blood and fecal sample collection (Tables 4–6).