. 2020 Sep 3;4(3):txaa163. doi: 10.1093/tas/txaa163

Table 7.

Effect of Bacillus subtilis PB6 and/or chromium propionate supplementation on categorical carcass traits of beef cattle

	Treatment^a				P-value
Item^b	CON	CST	CHR	CST + CHR	CST	CHR	CST × CHR
QG, %
Prime	0.18	0.89	0.16	0.16	0.12	0.09	0.11
Premium choice	7.73	15.11	12.20	11.07	0.32	0.82	0.18
Choice	43.02	39.43	51.48	46.56	0.40	0.13	0.90
Select	48.98	42.79	33.68	40.93	0.88	0.09	0.19
Standard	0.05	0.68	1.42	0.68	0.54	0.28	0.28
YG, %
1^c	1.14^b	7.69^a	10.23^a	4.55^ab	0.18	0.05	<0.01
2	36.48	25.36	27.21	38.01	0.95	0.72	0.03
3	47.51	44.96	40.97	46.43	0.77	0.62	0.43
4 or 5	13.12^ab	17.00^a	16.87^a	7.76^b	0.33	0.32	0.05
Liver score, %
Edible	81.58	89.58	88.19	82.16	0.78	0.87	0.08
Abnormal	16.41	9.53	10.94	14.58	0.65	0.98	0.15
Lung consolidation score^d, %
1	15.18	12.03	14.24	12.96	0.53	0.99	0.79
2	4.43	7.50	6.58	6.59	0.53	0.75	0.53
3	2.84	1.73	2.66	0.86	0.25	0.59	0.65
Lung fibrin score, %
Minor	9.99	6.99	14.29	13.36	0.49	0.11	0.65
Extensive	11.00	9.34	11.72	9.46	0.53	0.90	0.93
Lung status, %
Normal	42.32	48.42	34.93	38.84	0.38	0.14	0.87
Abnormal	44.75	40.17	50.49	46.47	0.39	0.23	0.95
Condemned	10.00	9.74	13.44	13.59	0.98	0.33	0.95

^aCON = placebo control; CST = 13 g per animal daily DM inclusion of Bacillus subtilis PB6 (CLOSTAT, Kemin Industries, Des Moines, IA); CHR = 450 ppb DM chromium propionate (KemTRACE Chromium, Kemin Industries); CST + CHR = 13 g per animal daily DM inclusion of Bacillus subtilis PB6 + 450 ppb DM chromium propionate.

^bLS means without common superscript differ (P ≤ 0.05).

^cDue to low frequency of YG 1, means presented are calculated rather than least square means.

^dLung consolidation score parameters are as follows: 1 = 0–15% consolidation of tissue or mycoplasma-like lesion; 2 = 15–50% consolidation of tissue or mycoplasma-like lesion; 3 = >50% consolidation of tissue or percentage of lung missing.