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Table 5 Amount of faeces, dry matter (DM) of the faeces and crude protein (CP) and mineral concentrations in the faeces of cats fed diets with varying protein concentrations and qualities. n = 10 / diet, Mean and SEM

From: Influence of protein concentration and quality in a canned diet on urine composition, apparent nutrient digestibility and energy supply in adult cats

     P values (polynomial contrasts)
  Low protein quality High protein quality SEM Interaction Low protein quality High protein quality Protein concentration Protein quality
  36.7% 45.0% 56.1% 36.2% 43.3% 54.9%    Lin. Quadr. Lin. Quadr. Lin. Quadr.  
Amount of faeces (g/kg body weight/day) 2.85 3.86 3.58 2.79 2.83 3.77 0.17 0.054 0.026 0.688 0.206
DM of the faeces (%) 33.8 33.5 35.1 40.9 37.5 36.0 0.98 0.796 0.339 0.984 0.012
Amount of faeces (g DM/kg body weight/day) 0.93 1.22 1.20 1.01 1.03 1.30 0.04 0.143 0.023 0.767 0.907
Faecal concentration (mg/g DM)
 CP 453 495 460 407 445 480 6.27 0.111 0.001 0.407 0.084
 Ca 80.0 74.3 91.1 91.6 91.1 89.0 2.52 0.496 0.195 0.640 0.339
 P 35.9 36.1 40.0 42.5 43.3 42.0 0.88 0.441 0.262 0.885 0.013
 Mg 3.81 3.78 3.48 4.06 4.07 3.79 0.06 0.792 0.042 0.161 0.010
 K 3.40 3.22 2.56 3.06 2.47 2.46 0.11 0.460 0.020 0.249 0.049
 Na 3.30 3.28 3.20 2.26 2.62 2.87 0.14 0.978 0.160 0.944 0.002
 Ox 0.84 0.78 0.79 0.96 0.83 0.75 0.02 0.141 <0.001 0.518 0.217