Bulletin of the National Research Centre

Table 7 Nitrogen utilization by the experimental groups

From: Mango (Mangifera indica) seed kernels as untraditional source of energy in Rahmani sheep rations

Item	Mango seed kernel (MSK)
Item	0	25	50	SEM
Nitrogen intake (NI), g	42.20	41.52	41.39	0.30
Fecal nitrogen (FN), g	12.28	9.35	11.75	0.67
Urinary nitrogen (UN), g	14.86^a	13.21^a	7.64^b	1.31
Total nitrogen excretion, g	27.14^a	22.56^ab	19.39^b	1.43
Digested nitrogen (DN), g	29.92	32.17	29.64	0.66
Nitrogen retention (NR),g	15.06^b	18.96^ab	22.00^a	1.39
NR % of NI	35.69^b	45.66^ab	53.15^a	3.33
NR % of DN	50.33^b	58.94^ab	74.22^a	4.35

a and b means in the same row having different superscripts differ significantly (P < 0.05); SEM, standard error of the mean

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