February 23-25, 2010, Phuket, ThailandData were obtained from dugong specimens collected in Thai waters during 22 June 1979 to 31 October 2009. Length and weight of calves ranged from 0.97-1.31 and 14-50 kg (n = 14). The average length of mature male and female was 2.58 ± 0.18 m (SD) (n = 12) and 2.55 ± 0.17 m (n = 23). The average weight of mature male and female was 249.6 ± 40.6 kg (n = 7) and 251.2 ± 55.2 kg (n = 17). Meat was the main part of dugong followed by blubber, while bone and internal organs were of similar proportion (n = 44). Organ weight from maximum to minimum was; lung, liver, kidney and heart. Weights (kg) of lung: liver: kidney: heart in male were 2.99 ± 1.01: 2.52 ± 0.73: 0.88 ± 0.21: 0.53 ± 0.18 (n = 11) and those weights (kg) in female were 3.35 ± 0.94: 3.09 ± 1.00: 1.26 ± 0.50: 0.53±0.19 (n = 7). Brain was very small, only 0.1% of body weight. Food contents in the stomachs of male and female were 1.92 ± 0.99% and 2.8 ± 1.13% of their body weight (n = 45). The maximum length of intestine was 12.04 ± 2.1 times of the body length (n = 44)
