Influence of high-oil algae biomass as a feed intake and growth-performance enhancer in feedlot cattle during period of high ambient temperature

Figures & data

Table 1. Treatment effects on 90-d feedlot growth performance and dietary NE of Holstein steers.

	Treatments			P value
Item	None	Top-dress Water	Top-dress Algae	None vs. Water	Water vs. Algae	SEM
Pen replications	5	5	5
Body weight^a, kg
Initial	289	291	292			2
Final	440	439	453	0.79	0.02	3
ADG, kg/d	1.68	1.64	1.79	0.51	0.02	0.04
DMI, kg/d	8.59	8.48	8.77	0.61	0.20	0.14
ADG/DMI	0.195	0.194	0.205	0.78	0.08	0.004
Dietary NE, Mcal/kg
Maintenance	2.216	2.214	2.295	0.97	0.09	0.030
Gain	1.533	1.532	1.602	0.97	0.09	0.027
Observed/expected NE
Maintenance	1.021	1.020	1.057	0.97	0.09	0.014
Gain	1.027	1.026	1.073	0.97	0.09	0.018

^a Initial and final live weights reduced 4% to account for fill.