Effects of rumen-protected creatine pyruvate on blood biochemical parameters and rumen fluid characteristics in transported beef cattle

Table 3 Effects of transport and rumen-protected creatine pyruvate on the rumen fermentation characteristics of beef cattle

Item	Treatment¹				SEM	P-value
	Transport		Nontransport			P-value
	RP-CrPyr₁₄₀	RP-CrPyr₀	RP-CrPyr₁₄₀	RP-CrPyr₀		Transport	RP-CrPyr	Transport × RP-CrPyr²
pH	7.02	6.58	6.37	6.65	0.076	0.087	0.619	0.046
MCP (mg/mL)	0.22	0.31	0.23	0.19	0.021	0.188	0.639	0.092
NH₃-N (mg/dL)	16.64	20.93	8.18	8.26	0.672	< 0.001	0.143	0.155
TVFA (mmol/L)	72.18	81.28	86.06	86.92	1.997	0.001	0.050	0.060
Acetate (mmol/L)	54.75^b	61.98^a	66.21^a	62.32^a	5.374	0.026	0.461	0.033
Propionate (mmol/L)	11.35	11.15	11.67	13.56	1.383	0.070	0.231	0.528
Butyrate (mmol/L)	6.08	8.15	8.81	11.04	1.910	< 0.001	< 0.001	0.819
Acetate/Propionate	4.89	5.61	4.60	5.68	0.201	0.755	0.618	0.029

^a,b,c Means within a row with no common superscript differ significantly (P < 0.05)
¹ A 2 × 2 factorial arrangement with 2 supplemental levels of rumen-protected creatine pyruvate (RP-CrPyr) in basal diets (0 or 140 g/d for each cattle) and 2 transport treatment (transport 0 or 12 h before slaughter)
² Transport × RP-CrPyr, the interaction between Transport and RP-CrPyr
SEM Stand error of mean, MCP Microbial crude protein, NH₃-N Ammonia nitrogen, TVFA Total volatile fatty acids

ISSN: 1746-6148