TIBETAN MASTIFF

A Preliminary Population Genetic Analysis
Carol Beuchat PhD

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Basic statistics

All dogs (1929-2014)

Number of dogs = 16,688
Males = 8,228
Females = 8,436

Dogs with offspring:
Total = 3,634
Males = 1,456
Females = 2,185

21.8% of all dogs have offspring
17.7% of males have offspring
25.9% of females have offspring


fe = 25.76
fg = 19.81
fa = 17.78

average MK = 5.2%

Reference population (Current reproductive population: 2007-2014)

Number of dogs = 5,673
Males = 2,819
Females = 2,857

Dogs with offspring:
Total = 620
Males = 248
Females = 376

10.9% of all dogs have offspring
  8.8% of males have offspring
13.2% of females have offspring


fe = 31.69
fg = 17.62
fa = 20.36

average MK = 5.6%

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Number of dogs registered (in database) per year since founding 

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Mean (open circles) and maximum (closed circles) Coefficient of Inbreeding (COI) by year

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