ICA  Vol.5 No.3 , August 2014
Evaluation of Replacement Policies in Sow Farms Using ArenaTM Simulation Software
ABSTRACT


This paper presents an application of the simulation of discrete events (SED) using ARENATM in the management of large-scale breeding farms. The main objective of the simulation model is to find a policy of replacement, to ensure the best economic performance of a farm. The only variant analyzed of replacement policy was the number of cycles set in permanency for a sow in the herd. Considered incomes come from the sale of piglets and unproductive sows, and costs are due to the feeding of animals, replacement sows purchases, and the operation expenses of the farm. For this analysis, the production process was divided into three major stages called: mating, pregnancy or gestation and lactation. The sow’s movement from one stage to other was modeled by cycle-dependent transition probabilities. Considering the daily utility, as response variable, the model shows the best number of cycles to maintain the sows.



Cite this paper
Benítez, M. , Aragones, L. , Garcia, M. , Arango, O. and Armenta, J. (2014) Evaluation of Replacement Policies in Sow Farms Using ArenaTM Simulation Software. Intelligent Control and Automation, 5, 126-135. doi: 10.4236/ica.2014.53015.
References
[1]   Chavas, J.P., Kliebenstein, J. and Crenshaw, T.D. (1985) Modeling Dynamic Agricultural Production Response—The Case of Swine Production. American Journal of Agricultural Economics, 67, 636-646.
http://dx.doi.org/10.2307/1241087

[2]   Glen, J.J. (1987) Mathematical Models in Farm-Planning—A Survey. Operations Research, 35, 641-666.
http://dx.doi.org/10.1287/opre.35.5.641

[3]   Huirne, R.B., Van Beek, P., Hendriks, T.H. and Dijkhuizen, A.A. (1993) Stochastic Dynamic Programming to Support Sow Replacement Decisions. European Journal of Operational Research, 67, 161-164.
http://dx.doi.org/10.1016/0377-2217(93)90059-V

[4]   Jalvingh, A.W., Dijkhuizen, A.A. and van Arendonk, J.A.M. (1992) Dynamic Probabilistic Modeling of Reproduction and Management in Sow Herds. General Aspects and Model Description. Agricultural Systems, 39, 133-152.
http://dx.doi.org/10.1016/0308-521X(92)90105-W

[5]   Rodríguez-Sánchez, S.V., Plà-Aragonés, L.M. and Albornoz, V.M. (2012) Modeling Tactical Planning Decisions through a Linear Optimization Model in Sow Farms. Livestock Production Science, 143, 162-171.
http://dx.doi.org/10.1016/j.livsci.2011.09.006

[6]   Rodríguez, S.V., Albornoz, V.M. and Plà, L.M. (2009) A Two-Stage Stochastic Programming Model for Scheduling Replacements in Sow Farms. TOP, 17, 171-189.
http://dx.doi.org/10.1007/s11750-009-0087-2

[7]   Plá-Aragonès, L.M., Marias, V.F. and Rodríguez-Sánchez, S.V. (2008) A Simulation Model for Intensive Piglet Production Systems. In: Mason, S.J., Hill, R.R., Mönch, L., Rose, O., Jefferson, T. and Fowler, J.W., Eds., Proceedings of the 2008 Winter Simulation Conference, INFORMS, Orlando, Florida, 2871-2875.

[8]   Singh, D. (1986) Simulation-Aided Capacity Selection of Confinement Facilities for Swine Production. Transactions of the ASABE, 29, 807-815.
http://dx.doi.org/10.13031/2013.30233

[9]   Plá, L.M., Pomar, C. and Pomar, J. (2003) A Markov Decision Sow Model Representing the Productive Lifespan of Herd Sows. Agricultural Systems, 76, 253-272.
http://dx.doi.org/10.1016/S0308-521X(02)00102-6

[10]   Kristensen, A.R. and Sollested, T.A. (2004) A Sow Replacement Model Using Bayesian Updating in a Three-Level Hierarchic Markov Process: I. Biological Model. Livestock Production Science, 87, 13-24.
http://dx.doi.org/10.1016/j.livprodsci.2003.07.004

[11]   Plá, L.M., Faulín, J. and Rodríguez, S.V. (2009) A Linear Programming Formulation of a Semi-Markov Model to Design Pig Facilities. Journal of the Operational Research Society, 60, 619-625.
http://dx.doi.org/10.1057/palgrave.jors.2602599

[12]   Hernández, G. (2010) Desarrollo de un modelo de simulación para el análisis del ciclo reproductivo de una piara. Tesis de Maestría, UAEH, México.

[13]   Allen, M.A. and Stewart, T.S. (1983) A Simualtion Model for Swine Breeding Unit Producing Feeders Pigs. Agricultural Systems, 10, 193-211.
http://dx.doi.org/10.1016/0308-521X(83)90045-8

[14]   Marín, J.M., Plà, L.M. and Ríos, D. (2005) Forecasting for Some Stochastic Process Models Related with Sow Farm Management. Journal of Applied Statistics, 32, 797-812.
http://dx.doi.org/10.1080/02664760500079845

[15]   Plá, L.M (2007) Review of Mathematical Models for Sow Herd Management. Livestock Production Science, 106, 107-119. http://dx.doi.org/10.1016/j.livsci.2006.09.003

 
 
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