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Wiley InterScience | |||||||||||
  American Journal of Agricultural EconomicsVolume 89 Issue 1, Pages 24 - 35 Published Online: 9 Feb 2007 © 2009 Agricultural and Applied Economics Association
Abstract | References | Full Text: HTML, PDF (Size: 503K) | Related Articles | Citation Tracking 
Economic Replacement of a Heterogeneous Herd
Assistance in generating simulated heterogeneous herd growth results by Mark Einstein and feed cost information provided by Dr. Brian Richert are gratefully acknowledged. The helpful comments of three anonymous reviewers and the Managing Editor Wade Brorsen are also gratefully acknowledged. Copyright 2007 American Agricultural Economics Association KEYWORDS herd decisions • livestock economics • livestock replacement ABSTRACTA 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.
[Received March 2004; | 
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