. 2005 Oct;69(4):299–304.

Table IV.

Mean (± s) values of nitrogen (N) balance in 12 cats fed a dry diet containing meat meal (MM), chicken meal (CM), or corn gluten meal (CGM)

Variable	MM	CM	CGM
N (g/kg of BW/d)
Intake	0.64 ± 0.06	0.65 ± 0.05	0.66 ± 0.07
Feces	0.06 ± 0.01^b	0.09 ± 0.01^a	0.09 ± 0.01^a
Urine	0.47 ± 0.06	0.48 ± 0.04	0.48 ± 0.04
Absorbed	0.57 ± 0.06	0.56 ± 0.05	0.57 ± 0.06
Retained	0.10 ± 0.02	0.08 ± 0.03	0.08 ± 0.05
Percentage of N intake
Feces	10.0 ± 4.0^b	14.0 ± 3.9^a	14.1 ± 6.2^a
Urine	73.6 ± 0.5	74.7 ± 0.5	75.6 ± 0.8
Absorbed	90.0 ± 4.0^a	86.0 ± 3.9^b	85.9 ± 6.2^b
Retained	16.4 ± 3.9^a	11.3 ± 4.0^a,b	10.3 ± 6.4^b
Percentage of N absorbed
That was retained	18.3 ± 4.4	13.1 ± 4.6	11.8 ± 7.3

BW — Body weight

^a,b,c

Mean values which do not have a common letter in their superscripts differ at a significance level of P < 0.05