| Summary: | 碩士 === 國立中興大學 === 畜牧學系 === 86 === The purpose of this study was to help the farmers to reduce
theirlosses and to gain more profits when their sow productivity
was low. This decision support system was designed to assist the
farm manager to get correct information to make the right
decision of sow replacement and to offer proper management
strategies according to individual sows'' situation. To avoid
errors and to save the input time, a program was developedin
dBASE IV programming language to transfer all related data from
the package of the Recording and Management System of Pig Farm.
Given farm''s data, related cost, and market price, this system
translated sow reproductive performance into an economic index,
the manager could therefore easy to find those sows that showed
inadequate reproductive performance. Furthermore, from the
sensitivity analysis of weaner number, mating number, the time
of returning to estrus, or piglet price, this system provided a
dynamic decision support for individual sows at different
reproduction stage. Farm managers can thus understand their
sows'' situation and adopt a suitable strategy to improve their
farm reproductive efficiency.
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