Professor Billard has brought together a panel of international experts to produce a comprehensive and practical volume about carp production and management. Starting with a brief look at the biology of cyprinids, the book goes on to discuss the methods and management of carp farming, from water quality to the economics of fish production in ponds. Novel methods to improve stock, including genetic engineering, are covered and case studies give added value to the text.6.1.1 Different types of pond In the oldest production systems, the phases of spawning, growth and overwintering take place naturally in the same ... Rationalisation of production has also led to the division of growth into different phases and the separation offish in the first, second and third years of growth. ... and is traditional in China with the aquot;multigrade conveyor systemaquot;. ... The production cycle in on-growing ponds extends over 3 years: the ponds stocked with Q and C2 carp areanbsp;...
|Publisher||:||Springer Science & Business Media - 1999-04-15|