Skip to main content

Table 1 Seasonal variations in body mass, body composition and energy budgets in Chinese Bulbuls

From: Seasonal variation in body mass and energy budget in Chinese bulbuls (pycnonotus sinensis)

Category Spring Summer Autumn Winter p value
Sample size (n) 23 23 24 18  
Body masses (g) 30.2 ± 0.4b 27.9 ± 0.4a 27.47 ± 0.8a 30.8 ± 0.5b <0.001
Body temperature (°C) 41.3 ± 0.1b 41.3 ± 0.2b 41.6 ± 0.6b 40.8 ± 0.2a <0.05
Carcass wet mass (g) 18.36 ± 0.50b 16.55 ± 0.33a 18.42 ± 0.66b 22.04 ± 0.35c <0.001
Carcass dry mass (g) 5.72 ± 0.15b 4.81 ± 0.14a 5.65 ± 0.21b 6.89 ± 0.18c <0.001
Body fat mass (g) 1.77 ± 0.08ab 1.58 ± 0.08a 1.91 ± 0.08b 2.23 ± 0.09c <0.001
Body fat content (%) 6.12 ± 0.31ab 5.46 ± 0.30a 6.66 ± 0.01b 7.61 ± 0.32c <0.001
Body water content (%) 76.26 ± 0.77 78.42 ± 0.77 77.53 ± 0.77 76.54 ± 0.89 >0.05
GEI (kJ/day) 183.93 ± 12.83b 139.19 ± 8.13a 151.72 ± 11.00a 226.51 ± 13.35c <0.001
FE (kJ/day) 92.47 ± 8.74bc 60.48 ± 4.58a 74.78 ± 6.58ab 108.80 ± 8.67c <0.001
DEI (kJ/day) 91.46 ± 8.36a 78.71 ± 5.28a 76.94 ± 6.71a 117.70 ± 8.79b <0.01
Digestibility (%) 50.49 ± 2.86 56.44 ± 2.33 50.74 ± 2.17 52.03 ± 2.63 >0.05
  1. Data are presented as mean ± SE, bold indicated statistical differences. The different superscripts in the same row indicate significant differences.