Skip to main content

Table 3 Body weight (kg), urine volume (ml/kg body weight/day), urinary pH, urine composition (mg/l) and relative supersaturation (RSS) of the urine 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.  
Body weight 4.05 4.30 4.34 4.15 4.19 4.24 0.16 0.873 0.003 0.442 0.783
Urine volume 28.0 34.2 31.5 25.2 24.2 27.8 1.45 0.037 0.427 0.103 0.010 0.571
Urinary
 pH (6.30 h) 8.45 8.30 8.44 8.49 8.31 8.44 0.05 0.841 0.680 0.284 0.899
 pH (12.30 h) 8.18 8.36 8.30 8.25 8.16 8.19 0.05 0.287 0.762 0.456 0.351
 Ca 8.98 9.65 13.6 12.4 9.96 8.87 1.01 0.247 0.431 0.264 0.363
 P 1055 1110 1070 931 1022 1027 42.7 0.604 0.103 0.698 0.302
 Mg 11.3 6.06 5.54 7.11 6.03 5.87 0.62 0.483 0.040 0.304 0.430
 K 3415 3546 3707 3176 3154 3528 97.8 0.393 0.175 0.913 0.352
 Na 2041 2033 3122 2149 2267 2415 124 0.324 0.006 0.499 0.563
 Urea 54.4 61.3 77.8 57.5 71.8 74.7 2.67 0.103 < 0.001 0.646 0.995
 Creatinine 1239 1241 1491 1438 1561 1513 42.5 0.070 0.059 0.696 0.014
 Sulphate 830 977 1301 989 1301 1607 54.1 0.820 < 0.001 0.495 0.022
 Ox 59.7 54.8 56.1 54.2 51.1 45.3 1.61 0.032 0.524 0.563 0.003 0.808
 Citrate 202 198 195 308 190 180 17.9 0.192 0.150 0.022 0.144
 Ammonium 394 684 837 707 991 1138 98.0 0.845 0.005 0.663 0.058
RSS
 CaOx 0.88 0.82 1.16 0.92 0.79 0.59 0.09 0.198 0.882 0.475 0.031
 MAP 3.29 2.64 3.44 4.41 4.70 5.00 0.90 0.772 0.515 0.942 0.322