Table 3.

Beef steers growth performance and dietary nutrient input predictions during the 63-d grazing periods as affected by supplement type

		Supplement type1
Item2		Control	DDGS	SEM	P-value
Initial BW, kg		290	286	1.9	0.19
Final BW, kg		362	373	4.3	0.06
BW gain per ha, kg		147	176	7.0	0.01
ADG, kg
	d 0–21	1.02	1.24	0.12	0.13
	d 21–42	1.47	1.71	0.13	0.11
	d 42–63	0.97	1.18	0.13	0.16
	d 0–63	1.16	1.38	0.06	0.01
Model predictions3
	Teff TDN, %	58.38	54.98	0.93	0.01
	Teff NEm, Mcal/kg	1.31	1.20	0.03	0.02
	Teff NEg, Mcal/kg	0.73	0.63	0.03	0.03
	Teff DMI, kg	7.04	5.92	0.04	<0.01
	Total DMI, kg	7.60	7.68	0.05	0.14
	Diet NEm, Mcal/kg	1.31	1.40	0.02	0.01
	Diet NEg, Mcal/kg	0.74	0.82	0.02	0.02
	Gain:feed	0.151	0.182	0.009	0.01

¹Control: cottonseed meal, 0.45 kg DM/animal-daily; DDGS: dried distillers grains plus solubles, 0.50% mean paddock BW/animal-daily.

²BW: body weight; ADG: average daily gain; TDN: total digestible nutrients; NE_m: net energy for maintenance; NE_g: net energy for gain.

³Beef Cattle Nutrient Requirements Model, 2016. National Academies Press. Washington, DC.