Table 3.

Effects of alfalfa meal on gastrointestinal tract growth of growing ducks at 15 wks old

Items	% Alfalfa meal in diet				SEM1	p values
	0	3	6	9		Alfalfa meal	Sex	Alfalfa meal×sex
Gizzard to live weight ratio (%)	3.47b	3.50b	3.53b	3.94a	0.09	0.0149	0.1166	0.6917
Crop to live weight ratio (%)	0.34b	0.41a	0.45a	0.48a	0.02	0.0048	0.2779	0.6051
Small intestine to live weight ratio (%)	3.10	3.23	3.27	3.33	0.17	0.8168	0.0055	0.8568
Caecum to live weight ratio (%)	0.293b	0.295b	0.332a	0.320a	0.004	0.0440	0.6149	0.7249
Small intestine index (mm/g)	1.07	1.07	1.08	1.13	0.04	0.5822	0.0485	0.3617
Caecum index (mm/g)	0.101c	0.108b	0.112a	0.113a	0.002	0.0319	0.1831	0.5197

^a,b,cMeans within a row with no common superscript differ statistically (p<0.05).

¹Standard error of means.