TABLE 2.

Phenotypic variables of Hu lambs of different groups.

Items	Treatments				SEM	P-value
	W30	PW30	W45	PW45
D-lactate, ng/mL	1024ab	1081a	950c	976bc	20.4	<0.01
Rumen papillae
Length, μm	581b	814ab	985ab	1307a	153	0.08
Width, μm	323	362	369	383	36.6	0.26
Total VFA, mg/ml	1.58ab	2.38a	2.50a	1.08b	0.314	0.05

^a,b,cMeans within a row with different superscripts differ significantly (P < 0.05).