Table 7.

Carcass characteristics and liver abscess score of heifers fed 0, 7.5, and 15% crude glycerin with or without 0.3% added salt (Exp. 3)

Item	Treatments1					SEM	P-value2
	CON	LCG	LCGNS	HCG	HCGNS		L	Q	S	CON vs. CG
HCW3, kg	369	364	370	364	362	12.6	0.11	0.76	0.21	0.24
Dressed yield, %	63.6	64.0	63.7	63.2	63.6	0.55	0.76	0.51	0.96	0.99
LM area4, cm2	93.5	93.8	93.6	93.6	95.5	1.90	0.46	0.76	0.47	0.63
KPH5, %	3.2	3.2	3.2	3.3	3.1	0.05	0.46	0.88	0.55	0.59
Subcutaneous fat, cm	2.2	2.1	2.1	2.1	1.8	0.08	0.005	0.48	0.02	0.04
Liver abscesses, %	10.7	17.3	13.2	16.0	17.6	4.10	0.23	0.70	0.71	0.25
USDA Yield Grade	2.6	2.5	2.6	2.4	2.4	0.11	0.01	0.64	0.04	0.06
Marbling score6	512	485	458	476	474	12.9	0.004	0.02	0.73	<0.001
USDA quality grades
Prime, %	2.7	4.0	0.0	0.0	0.0	1.32	0.10	0.59	0.13	0.26
Choice, %	82.7	82.7	79.0	88.0	87.8	4.26	0.31	0.26	0.09	0.72
Select, %	14.6	13.3	19.7	12.0	10.8	4.03	0.51	0.35	0.20	0.88
Ungraded, %	0.0	0.0	1.3	0.0	1.4	0.80	0.51	0.68	0.98	0.48

¹CON = Control diet, without crude glycerin, LCG = 7.5% added crude glycerin and 0.3% added salt (DM basis), LCGNS = 7.5% added crude glycerin and no salt (DM basis), HCG = 15% added crude glycerin and 0.3% added salt (DM basis), HCGNS = 15% added crude glycerin and no salt (DM basis).

²L = Linear effect of crude glycerin, Q = Quadratic effect of crude glycerin, S = Compares 0 and 0.3% salt in diets that contain crude glycerin, CON vs. CG = Contrast control vs. crude glycerin treatments.

³HCW = Hot carcass weight.

⁴LM area = Longissimus muscle area.

⁵KPH = Kidney, pelvic and heart fat.

⁶Marbling scores determined by USDA graders; slight = 300–399, small = 400–499, and modest = 500–599.