Use of supplements and variation in the stocking rate in cowcalf systems on temperate pastures in Chile: A simulation approach

Animal Production Science

Volumn 49, Issue 12, 2009, Pages 1059-1067

  Catrileo, A R ^a   Toro, P M ^b   Aguilar, C D ^b   Vera, R ^b  

^a INSTITUTO DE INVESTIGACIONES AGROPECUARIAS   (Chile)

^b PONTIFICIA UNIVERSIDAD CATÓLICA DE CHILE   (Chile)

Author keywords

Beef cattle; Simulation models; Winter supplementation.

Indexed keywords

BIOENERGETICS; BODY MASS; CATTLE; COST-BENEFIT ANALYSIS; DECISION SUPPORT SYSTEM; ECONOMIC ANALYSIS; EXPERIMENTAL STUDY; FOOD SUPPLEMENTATION; GRAZING PRESSURE; MODEL VALIDATION; PASTURE; SEASONAL VARIATION; STOCKING DENSITY; TEMPERATE ENVIRONMENT;

CHILE; SOUTH AMERICA;

BOS;

EID: 70450257580     PISSN: 18360939     EISSN: None     Source Type: Journal    
DOI: 10.1071/EA08113     Document Type: Article

References (29)

1. AFRC (1993) 'Energy and protein requirement of ruminants.' (CAB International: Wallingford, UK)
2. Aguilar C (1997) 'Simulación de sistemas. Aplicaciones en producción animal. Colección en Agricultura.' (P. Universidad Católica de Chile: Santiago, Chile)
3. Aguilar C, Allende R, Morales S (2003) (Eds) 'Gestión de sistemas pecuarios. Modelos para evaluar alternativas tecnológicas y creación de valor en la empresa pecuaria.' (Colección en Agricultura. P. Universidad Católica de Chile: Santiago, Chile)
4. Aguilar C, Vera R, Allende R, Toro P (2006) Supplementation, stocking rates, and economic performance of lamb production systems in the mediterranean-type region of Chile. Small Ruminant Research 66, 108-115. doi: 10.1016/j.smallrumres.2005.07.057 (Pubitemid 44436907)
5. Alcock DJ (2006) Using grazing systems modelling to assess economic, production and environmental risks to aid in selecting appropriate stocking rates. Australian Journal of Experimental Agriculture 46, 841-844. doi: 10.1071/EA05302
6. Anderson P, Meiske R (1991) Managing beef cow condition scores through feeding. Issue 16, January. University of Minnesota, St Paul. Extension Service. Department of Animal Science, USA.
7. ARC (1980) 'The nutrient requirements of ruminant livestock.' (Agricultural Research Council: London)
8. A) of lactating beef cows. Journal of Animal Science 70, 3867-3876.
9. Clark SG, Donnelly JR, Moore AD (2000) The GrassGro decision support tool: its effectiveness in simulating pasture and animal production and value in determining research priorities. Australian Journal of Experimental Agriculture 40, 247-256. doi: 10.1071/EA98011
10. CSIRO (1990) 'Feeding standards for Australian livestock. Ruminants.' (CSIRO Publishing: Melbourne)
11. Da Cunda S (1997) Modelo de simulación para la gestión estratégica de sistemas de producción de carne bovina, de la región de Basalto, Uruguay. MSc Thesis, Pontificia Universidad Católica de Chile, Santiago, Chile.
12. Dart J (2005) Evaluation for farming systems improvement: looking backwards, thinking forwards. Australian Journal of Experimental Agriculture AS, 627-633. doi: 10.1071/EA03249
13. Delaby L. Peyraud J.L. Delagarde R. Effect of the level of concentrate supplementation, herbage allowance and milk yield at turn-out on the performance of dairy cows in mid lactation at grazing, Animal Science, 2001, 73, 1.
14. Field GT (2007) Reproduction. In 'Beef production and management decisions'. 5th edn. (Ed. GT Field.) pp. 331-378. (Prentice Hall: Upper Saddle River, NJ)
15. Hady PJ, Lloyd JW, Kaneene JB, Skidmore AL (1994) Partial budget model for reproductive programs of dairy farm businesses. Journal of Dairy Science 77, 482491.
16. Halvorson M (2003) 'Getting started with Microsoft Visual Basic. NET.' (McGraw Hill/Interamericana de España: Madrid)
17. Hoover SV, Perry RF (1989) 'Simulation. A problem-solving approach.' (Addison-Wesley Publishing Co.: Reading, UK)
18. Johnson IR, Lodge GM, White RE (2003) The sustainable grazing system pasture model: description, philosophy and application to the SGS national experiment. Australian Journal of Experimental Agriculture 43, 711-728. doi: 10.1071/EA02213
19. Kingwell RS, Pannell DJ (1987) 'MIDAS, bioeconomic model of a dryland farm system..' (Pudoc: Wageningen, Germany)
20. Klee GG (1996) La pradera en los sistemas de producción de carne bovina. In 'Praderas para Chile. Ministerio de Agricultura'. (Ed. I Ruiz) pp. 680-696. (Instituto de Investigaciones Agropecuarias: Santiago, Chile)
21. MacLeod ND, Ash AJ, McIvor JG (2004) An economic assessment of the impact of grazing land condition on livestock performance in tropical woodlands. The Rangeland Journal 26, 49-71. doi: 10.1071/RJ04004
22. McDonald P, Edwards RA, Greenhalgh JFD, Morgan CA (2002) 'Animal nutrition.' 6th edn. (Prentice Hall: London)
23. Oficina de Estudios y Políticas Agrarias (2001) 'Compendio Estadístico Silvoagropecuario 1990-2000.' (Ministerio de Agricultura: Santiago, Chile)
24. Rojas C (2003) Crianza bovina: concentración de partos y pesos de temeros. pp. 4749. Tierra Adentro (Jul-Ago), No.51, Santiago, Chile.
25. Rojas C (2005) Manejo de la crianza. In 'Producción y manejo de carne bovina en Chile. Ministerio de Agricultura'. (Ed. SA Catrileo) pp. 257-274. (Instituto de Investigaciones Agropecuarias: Santiago, Chile)
26. Rojas C, Romero O (1990) Sistema de crianza de Hereford, utilizando festuca con trébol subterráneo en el valle de la IX Región. Agricultura Técnica (Chile) 50, 379-385.
27. Uribe H, Lanuza F (2006) Reproducción. In. 'Manual de producción de leche para pequeños y medianos productores. Ministerio de Agricultura'. pp. 97-108. (Ed. H Navarro) Instituto de Investigaciones Agropecuarias. Centro Regional Remehue. Boletín No. 148. Osorno, Chile.
28. Williams CB, Oltenacu PA, Sniffen CJ (1989) Refinements in determining the energy value of body tissue reserves and tissue gains from growth. Journal of Dairy Science 72, 264-269.
29. Wood PDP (1967) Algebraic model of the lactation curve in cattle. Nature 216, 164-165. doi: 10.1038/216164a0