302 DUCKS AND DUCK-BREEDING. 
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indicate that it originated in Normandy, but there is no 
direct evidence to this effect. In economic qualities the 
value of the Rouen is very great, but it does not equal 
the Aylesbury in so far as early maturity is concerned. It is 
much slower in development, and during the early period of 
growth is engaged in the building of frame rather than the 












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PEKIN DUCKS. 
production of flesh. Hence it is not suitable for the duckling 
trade, but it provides larger specimens than the Aylesbury. 
It is, therefore, chiefly kept for the summer and autumn duck 
trade. The flesh is excellent, very fullin flavour, and, when 
the bird is fully grown, very abundant. The flesh is much 
darker than that of the Aylesbury, but is richer than that 
of any of the other species. This duck is a good layer of 
large-sized eggs, but it does not come into profit so early as 
