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Economic Replacement of a Heterogeneous Herd
Author(s) -
Boys Kathryn A.,
Li Ning,
Preckel Paul V.,
Schinckel Allan P.,
Foster Kenneth A.
Publication year - 2007
Publication title -
american journal of agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.949
H-Index - 111
eISSN - 1467-8276
pISSN - 0002-9092
DOI - 10.1111/j.1467-8276.2007.00960.x
Subject(s) - herd , dominance (genetics) , revenue , sort , total revenue , economics , business , agricultural science , operations management , microeconomics , zoology , biology , mathematics , finance , biochemistry , arithmetic , gene
A model was developed to determine the optimal slaughter weights of pigs with heterogeneous growth raised in a 1,000 head barn and marketed in truckload groups. Under commonly used revenue schemes, which include discounts for weight and leanness, the optimal strategy was to market one or two truckloads of the heaviest animals, to wait several days, and then to market the rest of the herd. This multiple marketing strategy allows the producer to avoid some sort losses for heavy animals, but only modestly extends the grow/finish period, reflecting the dominance of the opportunity cost of facilities in the herd replacement decision.