Development of a mathematical model to study the impacts of production and management policies on the herd dynamics and profitability of dairy goats

Agricultural Systems

Volumn 101, Issue 3, 2009, Pages 186-196

  Guimarães, Vinícius Pereira ^a,b   Tedeschi, Luis Orlindo ^a   Rodrigues, Marcelo Teixeira ^b  

^a TEXAS A AND M UNIVERSITY   (United States)

^b FEDERAL UNIVERSITY OF VIÇOSA   (Brazil)

Author keywords

Dairy goats; Herd dynamics; Mathematical model; Simulation

Indexed keywords

COMPETITIVENESS; DAIRY FARMING; GOAT; INSTABILITY; MILK PRODUCTION; NUMERICAL MODEL; PROFITABILITY;

BRAZIL; SOUTH AMERICA;

CAPRA HIRCUS;

EID: 67849092259     PISSN: 0308521X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.agsy.2009.05.007     Document Type: Article

References (61)

1. Agricultural and Food Research Council (AFRC). Energy and Protein Requirements of Ruminants (1993), CAB International, Wallingford, UK
2. Aguilar C., Vera R., Allende R., and Toro P. Supplementation, stocking rates, and economic performance of lamb production systems in the Mediterranean-type region of Chile. Small Ruminant Res. 66 (2006) 108-115
3. Amarantidis I., Karagiannidis A., Saratsis P., and Brikas P. Efficiency of methods used for estrous synchronization in indigenous Greek goats. Small Ruminant Res. 52 (2004) 247-252
4. Amer P.R., McEwan J.C., Dodds K.G., and Davis G.H. Economic values for ewe prolificacy and lamb survival in New Zealand sheep. Livest. Prod. Sci. 58 (1999) 75-90
5. Angirasa A.K., Shumway C.R., and Cartwright T.C. Simulating differences in net returns from beef production under alternative forage systems and management practices. Agr. Syst. 17 (1985) 99-116
6. Awemu E.M., Nwakalor L.N., and Abubakar B.Y. Environmental influences on preweaning mortality and reproductive performance of Red Sokoto does. Small Ruminant Res. 34 (1999) 161-165
7. Bagnicka E., Wallin E., Lukaszewicz M., and Adnoy T. Heritability for reproduction traits in Polish and Norwegian populations of dairy goat. Small Ruminant Res. 68 (2006) 256-262
8. Bosman H.G., Ayantunde A.A., Steenstra F.A., and Udo H.M.J. A simulation model to assess productivity of goat production in the tropics. Agr. Syst. 54 (1997) 539-576
9. Casey N.H., and Van Niekerk W.A. The boer goat. I. Origin, adaptability, performance testing, reproduction and milk production. Small Ruminant Res. 1 (1988) 291-302
10. Crepaldi P., Corti M., and Cicogna M. Factors affecting milk production and prolificacy of Alpine goats in Lombardy (Italy). Small Ruminant Res. 32 (1999) 83-88
11. de Rancourt M., Fois N., Lavin M.P., Tchakerian E., and Vallerand F. Mediterranean sheep and goats production: an uncertain future. Small Ruminant Res. 62 (2006) 167-179
12. Delgadillo J.A., and Chemineau P. Abolition of the seasonal release of luteinizing hormone and testosterone in Alpine male goats (Capra hircus) by short photoperiodic cycles. J. Reprod. Fertil. 94 (1992) 45-55
13. Delgadillo J.A., Leboeuf B., and Chemineau P. Abolition of seasonal variations in semen quality and maintenance of sperm fertilizing ability by photoperiodic cycles in goat bucks. Small Ruminant Res. 9 (1992) 47-59
14. Fan B., Chen S.-L., Kijas J.H., Liu B., Yu M., Zhao S.-H., Zhu M.-J., Xiong T.-A., and Li K. Phylogenetic relationships among Chinese indigenous goat breeds inferred from mitochondrial control region sequence. Small Ruminant Res. 73 (2007) 262-266
15. Fernandes M.H.M.R., Resende K.T., Tedeschi L.O., Fernandes Jr. J.S., Silva H.M., Cartens G.E., Berchielli T.T., Teixeira I.A.M.A., and Akinaga L. Energy and protein requirements for maintenance and growth of Boer crossbred kids. J. Anim. Sci. (2007) 85
16. Galina M.A., Silva E., Morales R., and Lopez B. Reproductive performance of Mexican dairy goats under various management systems. Small Ruminant Res. 18 (1995) 249-253
17. Garcia-Hernandez R., Newton G., Horner S., and Horner L.C.N. Effect of photoperiod on milk yield and quality, and reproduction in dairy goats. Livest. Sci. 110 (2007) 214-220
18. Gartner J.A., and Hallam D. A quantitative framework for livestock development planning: part 3 - Feed demand and supply. Agr. Syst. 14 (1984) 123-142
19. Granados, L.B.C., Dias, Â. J.B., Sales, M.P.d., 2006. Aspectos gerais da reprodução de caprinos e ovinos. In: Capacitação dos técnicos e produtores do Norte e Noroeste Fluminense em Reprodução de Caprinos e Ovinos.
20. Greyling J.P.C. Reproduction traits in the Boer goat doe. Small Ruminant Res. 36 (2000) 171-177
21. Guevara J.C., Estevez O.R., and Stasi C.R. Cost-benefit analysis of cactus fodder crops for goat production in Mendoza, Argentina. Small Ruminant Res. 34 (1999) 41-48
22. Guimarães V.P. Curva de Lactação, Efeitos Ambientais e Genéticos sobre o Desempenho Produtivo de Cabras Leiteiras (2004), Universidade Federal de Viçosa (Dissertação de Mestrado), Viçosa
23. Guimarães, V.P., 2007. Modeling a dairy goat farm using a System Dynamics approach. Ph.D. Dissertation. Federal University of Viçosa, Viçosa, MG, Brazil.
24. Guimarães V.P., Rodrigues M.T., Sarmento J.L.R., and Rocha D.T.d. Utilização de funções matemáticas no estudo da curva de lactação em caprinos. Rev. Bras. Zootecn. 35 (2006) 35-43
25. Haenlein G.F.W. Relationship of somatic cell counts in goat milk to mastitis and productivity. Small Ruminant Res. 45 (2002) 163-178
26. Hamadeh S.K., Bistanji G.N., Darwish M.R., Abi Said M., and Abi Ghanem D. Economic sustainability of small ruminants production in semi-arid areas of Lebanon. Small Ruminant Res. 40 (2001) 41-49
27. Holtz W. Recent developments in assisted reproduction in goats. Small Ruminant Res. 60 (2005) 95-110
28. Konarzewski M., and Werner Klinth J. Meat animals, origin and domestication. Encyclopedia of Meat Sciences (2004), Elsevier, Oxford 681-686
29. Kosgey I.S., van Arendonk J.A.M., and Baker R.L. Economic values for traits of meat sheep in medium to high production potential areas of the tropics. Small Ruminant Res. 50 (2003) 187-202
30. Lane, D., 2000. You just don't understand me: modes of failure and success in the discourse between system dynamics and discrete event simulation. In: Working Paper No. LSEOR 00.34. London School of Economics.
31. Law A., and Kelton D. Simulation Modeling and Analysis (2000), McGraw-Hill
32. Loyland K., and Ringstad V. Gains and structural effects of exploiting scale-economies in Norwegian dairy production. Agr. Econ. 24 (2000) 149-166
33. Luo J., Goetsch A.L., Nsahlai I.V., Johnson Z.B., Sahlu T., Moore J.E., Ferrell C.L., Galyean M.L., and Owens F.N. Maintenance energy requirements of goats: predictions based on observations of heat and recovered energy. Small Ruminant Res. 53 (2004) 221-230
34. Luo J., Goetsch A.L., Nsahlai I.V., Sahlu T., Ferrell C.L., Owens F.N., Galyean M.L., Moore J.E., and Johnson Z.B. Metabolizable protein requirements for maintenance and gain of growing goats. Small Ruminant Res. 53 (2004) 309-326
35. Luo J., Goetsch A.L., Sahlu T., Nsahlai I.V., Johnson Z.B., Moore J.E., Galyean M.L., Owens F.N., and Ferrell C.L. Prediction of metabolizable energy requirements for maintenance and gain of preweaning, growing and mature goats. Small Ruminant Res. 53 (2004) 231-252
36. Mandal A.B., Paul S.S., Mandal G.P., Kannan A., and Pathak N.N. Deriving nutrient requirements of growing Indian goats under tropical condition. Small Ruminant Res. 58 (2005) 201-217
37. Meadows, D.H., Meadows, D.L., Project on the Predicament of Mankind, Potomac Associates, 1972. The limits to growth: a report for the Club of Rome's project on the predicament of mankind. Universe Books, New York.
38. Meadows D.H., and Robinson J.M. The Electronic Oracle: Computer Models and Social Decisions (1985), Wiley, Chichester, New York
39. Meadows D.L. Dynamics of Commodity Production Cycles (1970), Wright-Allen Press, Cambridge, Mass
40. Mellado M., Foote R.H., and Gomez A. Reproductive efficiency of Nubian goats throughout the year in northern Mexico. Small Ruminant Res. 6 (1991) 151-157
41. Montaldo H., Almanza A., and Juarez A. Genetic group, age and season effects on lactation curve shape in goats. Small Ruminant Res. 24 (1997) 195-202
42. Mourad M. Estimation of genetic and phenotypic parameters of some reproductive traits of African Common goats in Rwanda. Small Ruminant Res. 15 (1994) 67-71
43. Myrtveit M. The World Model Controversy. In: Dynamics W.P.I.S. (Ed) (2005), Department of Geography, University of Bergen
44. NASS, 2006. National Agricultural Statistics Service. Sheep and goats. In: Agriculture Counts. Department of Agriculture.
45. NRC, 2006. National Research Council. Nutrient requirements of small ruminants: sheep, goats, cervids, and New World camelids. Washington, DC.
46. Penn State, 2000. Agricultural alternatives-meat goat production. In: Cooperative Extension Service, The Pennsylvania State University, University Park, PA.
47. Reynolds L., and Adediran S. Composition of village goat herds in southwest Nigeria. Small Ruminant Res. 13 (1994) 49-53
48. Rivera G.M., Alanis G.A., Chaves M.A., Ferrero S.B., and Morello H.H. Seasonality of estrus and ovulation in Creole goats of Argentina. Small Ruminant Res. 48 (2003) 109-117
49. Roberts N., Andersen D.F., Deal R.M., Garet M.S., and Shaffer W.A. Introduction to Computer Simulation: A System Dynamics Modeling Approach (1983), Productivity Press, Portland, Oregon
50. Salama A.A.K., Caja G., Such X., Casals R., and Albanell E. Effect of pregnancy and extended lactation on milk production in dairy goats milked once daily. J. Dairy Sci. 88 (2005) 3894-3904
51. Salinas H., Ramirez R.G., and Rumayor-Rodriguez A. A whole-farm model for economic analysis in a goat production system in Mexico. Small Ruminant Res. 31 (1999) 157-164
52. Santos, F.C.B.d., Souza, B.B.d., Alfaro, C.E.P., Cezar, M.F., Pimenta Filho, E.C., Acosta, A.A.A., Santos, J.R.S.d., 2005. Adaptability of exotic goat and naturalized to the climatic conditions of the tropic semi-arid Brazilian northeast. Ciencia e Agrotecnologia. Universidade Federal de Lavras, Lavras, Brazil, vol. 29, pp. 142-149.
53. Senge P., Roberts C., Ross R.B., Smith B.J., and Kleiner A. The Fifth Discipline Field book: Strategies and Tools for Building a Learning Organization (1994), Doubleday, New York
54. Silva E., Galina M.A., Palma J.M., and Valencia J. Reproductive performance of Alpine dairy goats in a semi-arid environment of Mexico under a continuous breeding system. Small Ruminant Res. 27 (1998) 79-84
55. Singh D. Simulation of swine herd population dynamics. Agr. Syst. 22 (1986) 157-183
56. Sonawane R. Applying System Dynamics and Critical Chain Methods to Develop a Modern Construction Project Management System (2004), Texas A&M University, Kingsville
57. Sterman J.D. Business Dynamics: Systems Thinking and Modeling For a Complex World (2000), Irwin McGraw-Hill, New York
58. Tichit M., Hubert B., Doyen L., and Genin D. A viability model to assess the sustainability of mixed herds under climatic uncertainty. Anim. Res. 53 (2004) 405-417
59. Upton M. Livestock productivity assessment and modeling. Agr. Syst. 43 (1993) 459-472
60. van Kooten G.C., Bulte E.H., and Kinyua P. Game cropping and wildlife conservation in Kenya: a dynamic simulation model with adaptive control. Agr. Syst. 54 (1997) 439-462
61. Wani G.M., and Hubert R. Goat Husbandry - Multipurpose Management. Encyclopedia of Dairy Sciences (2002), Elsevier, Oxford 1259-1270