Table 3.

Effects of replacing cottonseed hulls with ground woody products on goat growth performance

Item1	Diet2							P-value4
	CSH	RED	BLUE	ONE	ERC	MESQ	SEM3	T	D	T × D
Period 1; day 27
DMI, kg/d	0.87	0.89	0.79	0.86	0.78	0.67*	0.05	0.06	–	–
ADG, kg	0.17	0.16	0.12†	0.14	0.12	0.09*	0.02	0.001	–	–
G:F, kg/kg	0.20	0.18	0.15†	0.16	0.17	0.12*	0.02	0.02	–	–
Period 2; days 27 to 64
DMI, kg/d	0.97	0.98	0.85	1.02	0.90	0.88	0.05	0.09	0.74	0.69
ADG, kg	0.14	0.13	0.13	0.16	0.13	0.14	0.02	0.75	0.10	0.29
G:F, kg/kg	0.15	0.13	0.15	0.16	0.14	0.15	0.02	0.82	0.12	0.37
Overall (days 0 to 64)								T	P	T × P
DMI, kg/d	0.92	0.95	0.81	0.93	0.85	0.77†	0.05	0.05	< 0.001	0.07
ADG, kg	0.16	0.15	0.13	0.15	0.13†	0.12*	0.02	0.06	0.02	0.06
G:F, kg/kg	0.18	0.16	0.15	0.16	0.15	0.14	0.02	0.40	0.48	0.18

During Period 1 (days 0 to 26), goats were fed a 70% concentrate ration. Goats were transitioned over 5 d into Period 2 (days 27 to 64) and onto an 86% concentrate ration. Treatments were only compared with cottonseed hulls (CSH), not to each other. Within row, means with a different superscript than the control diet (CSH) differ: †0.05 > P < 0.10; *P < 0.05.

¹DMI = average daily DMI.

²Treatment diets were mixed and nonpelleted; ingredient composition differed only by roughage source; either cottonseed hulls (CSH) or ground woody products (RED = Juniperus pinchotii, BLUE = Juniperus ashei, ONE = Juniperus monosperma, ERC = Juniperus virginiana, or MESQ = Prosopis glandulosa). Juniperus spp. (entire above-ground biomass) and P. glandulosa (entire above-ground biomass except for leaves) species were chipped, dried, and hammermilled to pass a 4.76-mm sieve.

³SEM = greatest SEM.

⁴T = treatment effect; D = day effect; P = period effect.