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Table 2 Effect of adaptation diet (15 days) on growth, dietary consumption, body and tissue composition in rats (n = 48)

From: Rapeseed and milk protein exhibit a similar overall nutritional value but marked difference in postprandial regional nitrogen utilization in rats

  OPI MPI RPI  
  Mean SD Mean SD Mean SD Stat effect a
Weight        
   Initial weight (g) 210 9 210 6 209 8 NS
   Final weight (g) 282 14 290 14 292 9 P = 0.07
   Weight gain (g.d-1) 4.8a 0.7 5.3ab 0.7 5.5b 0.5 P < 0.02
Consumption       
   Food intake (kcal.d-1) 74.5 5.3 74.2 4.2 74.8 6.0 NS
   Protein intake (g.d-1) 3.7 0.3 3.7 0.2 3.7 0.3 NS
   Food efficiency (g.kcal-1 ×100) 6.8a 0.9 7.5ab 1.0 7.9b 0.9 P < 0.005
Body composition b        
   Total body water (g) 177 11 188 10 181 11 NS
   Fat free mass (g) 243 15 257 13 248 15 NS
   Fat mass (g) 42 19 29 8 39 22 NS
   Fat mass (%) 14.5 6.2 10.2 2.8 13.6 7.5 NS
Tissue mass (g/100 g BW)        
   Stomach 0.51a 0.03 0.52ab 0.05 0.46b 0.03 P < 0.0005
   Intestinal mucosa 2.69 0.28 2.68 0.31 2.65 0.23 NS
   Cecum 0.24 0.04 0.28 0.04 0.23 0.05 P = 0.08
   Colon 0.36 0.05 0.35 0.04 0.35 0.04 NS
   Liver 3.36 0.24 3.31 0.20 3.31 0.19 NS
   Kidney 0.71a 0.04 0.66b 0.03 0.68ab 0.06 P < 0.05
   Gastrocnemius muscle 0.183 0.008 0.180 0.008 0.179 0.008 NS
   Total skeletal muscle c 51.6 1.9 52.4 3.1 50.3 1.9 P = 0.08
Tissue protein content (mg)        
   Stomach 234 22 239 42 214 41 NS
   Intestinal mucosa 867 92 841 100 812 98 NS
   Kidney 366 32 360 35 357 37 NS
   Liver 1957 163 2026 168 1996 156 NS
   Colon 107 32 100 36 103 38 NS
   Cecum 76a 14 95b 14 67a 8 P < 0.01
   Gastrocnemius muscle 112a 8 120b 11 120b 8 P < 0.01
   Skin 12841 1134 13455 1448 13644 1432 NS
  1. NS: not significant, BW: body weight. a One way ANOVA; b Determined by deuterated water method; cEstimated from fat-free mass (see Materials and methods). Means in a row with different letters are significantly different (P < 0.05, Tukey post-hoc test).