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Table 6 Nitrogen balance of Farafra sheep fed different experimental diets

From: Effect of different dietary protein sources on digestibility and growth performance parameters in lambs

Item Experimental diets SE Sig
SBM BCSM CSM SSM
Nitrogen balance (g/head/day)
Nitrogen intake 20.80 22.19 22.70 23.08 0.51 NS
Fecal nitrogen 7.01b 9.02a 5.19c 6.69b 0.49 *
Urinary nitrogen 12.32a 9.31b 5.46c 10.37b 0.77 **
Digestible nitrogen 13.79c 13.17c 17.51a 16.39b 0.64 *
Nitrogen retention 1.47c 3.86bc 12.05a 6.02b 1.22 **
N retent./N intake (%) 7.07c 17.40b 53.08a 26.08b 5.37 **
N retent./digest. N (%) 10.66c 29.31b 68.82a 36.73b 6.64 **
Nitrogen balance (mg/kg w0.75)
Nitrogen intake 360.52 429.99 444.13 427.80 17.68 NS
Fecal nitrogen 120.34b 174.58a 101.52b 124.11b 10.10 *
Urinary nitrogen 212.96a 180.10a 106.69b 192.07a 13.19 **
Digestible nitrogen 240.18 255.41 342.61 303.69 20.63 NS
Nitrogen retention 27.22c 75.31bc 235.92a 111.62b 24.39 **
N retent./N intake (%) 7.55c 17.51b 53.12a 26.09b 5.37 **
N retent./digest. N (%) 11.33c 29.49b 68.86a 36.75b 6.64 **
  1. a, b and c: Means in the same row with different superscripts are significantly different at (p < 0.01)
  2. SE, standard error; NS, nonsignificant difference
  3. *Significant difference at (p < 0.05), **Significant difference at (p < 0.01)
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