Table 1

Results of independent t tests comparing least square mean (lower and upper 95 per cent confidence limit) blood parameter concentrations between beef bulls with abscessed and normal livers averaged over the 56-day sampling period

Parameter (unit)Abscessed (n=9)Normal (n=20)P Value
Metabolic hormones
Cortisol (ng/ml)91.52 (37.35, 55.02)70.13 (30.08, 40.43)0.04
Leptin (ng/ml)2.89 (2.47, 3.37)2.74 (2.46, 3.04)
0.361
0.60
IGF-1 (ng/ml)486.8 (445.8, 527.8)509.0 (481.1, 536.8)0.36
T3 (nmol/l)2.74 (2.57, 2.92)2.76 (2.64, 2.88)0.89
T4 (nmol/l)85.73 (80.86, 90.61)88.60 (85.30, 91.91)0.32
Liver and whole-body metabolism
CO(mmol/l)23.16 (22.62, 23.71)22.65 (22.28, 23.01)0.12
Albumin (g/l)30.27 (29.24, 31.30)32.04 (31.36, 32.73)0.01
ALP (U/l)120.2 (107.66, 132.80)122.08 (113.60, 130.57)0.80
AST (U/l)64.85 (59.57, 70.58)57.48 (54.29, 60.87)0.02
Acetate (g/l)34.93 (32.41, 37.64)35.06 (33.35, 36.86)0.93
Cholesterol (mmol/l)2.22 (2.03, 2.41)2.45 (2.32, 2.58)0.05
Glucose (mmol/l)2.15 (1.45, 1.48)2.18 (1.47, 1.48)0.13
Urea (mmol/l)3.84 (3.53, 4.16)4.11 (3.90, 4.33)0.15
Sexual hormones
FSH (ng/ml)0.33 (0.26, 0.41)0.28 (0.24, 0.32)0.21
LH (ng/ml)0.33 (0.25, 0.42)0.35 (0.29, 0.41)0.69
Testosterone (ng/ml)3.96 (3.19, 4.73)5.13 (4.61, 5.65)0.02
Prolactin (ng/ml)56.21 (40.12, 78.74)42.26 (33.63, 53.10)0.16
Ions
Chloride (mmol/l)94.57 (93.16, 95.97)95.02 (94.08, 95.96)0.58
Sodium (mmol/l)136.0 (134.00, 137.95)136.71 (135.39, 138.02)0.53
Potassium (mmol/l)4.37 (4.20, 4.54)4.38 (4.27, 4.50)0.88
Calculated osmolality (mmol/l)269.4 (265.60, 273.31)271.30 (268.72, 273.88)0.42
  • ALP, alkaline phosphatase; AST, aspartate aminotransferase; CO2, carbon dioxide; FSH, follicle stimulating hormone; IGF-1, insulin-like growth factor-1; LH, luteinising hormone; T3, triiodothyronine; T4, thyroxine.