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RESEARCH ARTICLE
Contents Vol 48(2)

Predicting livestock productivity and methane emissions in northern Australia: development of a bio-economic modelling approach

E. Charmley A B , M. L. Stephens A and P. M. Kennedy A
+ Author Affiliations
- Author Affiliations

A CSIRO Livestock Industries, JM Rendel Laboratory, PO Box 5545, Rockhampton, Qld 4702, Australia.

B Corresponding author. Email: ed.charmley@csiro.au

Australian Journal of Experimental Agriculture 48(2) 109-113 https://doi.org/10.1071/EA07264
Submitted: 9 August 2007  Accepted: 1 November 2007   Published: 2 January 2008

Abstract

Enteric fermentation from livestock is a large source of methane, which has a global warming potential 23 times that of carbon dioxide. In Australia, enteric emissions from the livestock sector contribute 10% of Australia’s greenhouse gases. The northern Australian beef industry about 16 million animals is a major contributor to these emissions. However, relative to temperate systems, comparatively little research has been conducted on enteric methane emissions from tropical feeding systems. This paper describes a modelling approach that estimates cattle methane emissions for various bioregions of northern Australia. The approach incorporates a metabolisable energy based model of animal production linked to a property herd economic model. This provides a flexible tool to evaluate animal and property herd dynamics on regional methane yields and liveweight productivity, as well as to assess financial impacts. The model predicts that an important determinant of methane output per unit of product is reduced days to market. Reduced days to market may be achieved through a range of energy supplementation and marketing strategies.


References


ABARE (2006) ‘Australian beef 06.1.’ (Australian Bureau of Agricultural and Resource Economics: Canberra)

Alford AR, Hegarty RS, Parnell PF, Cacho OJ, Herd RM, Griffith GR (2006) The impact of breeding to reduce residual feed intake on enteric methane emissions from the Australian beef industry. Australian Journal of Experimental Agriculture 46, 813–820.
| Crossref | GoogleScholarGoogle Scholar | open url image1

ARC (1980) ‘The nutrient requirements of ruminant livestock.’ Australian Research Council. (CAB International: Wallingford UK)

Australian Greenhouse Office (2007) ‘National greenhouse gas inventory 2005.’ (Commonwealth of Australia: Canberra)

Benchaar C, Pomar C, Chiquette J (2001) Evaluation of dietary strategies to reduce methane production in ruminants: a modelling approach. Canadian Journal of Animal Science 81, 563–574. open url image1

Coleman SW (2005) Predicting forage intake by grazing ruminants. In ‘Proceedings of 2005 ruminant nutrition symposium, Florida’. pp. 72–90. (United States Department of Agriculture)

Hall WB, McKeon GM, Carter JO, Day KA, Howden SM, Scanlan JC, Johnston PW, Burrows WH (1998) Climate change in Queensland’s grazing lands: II. An assessment of the impact of animal production from native pastures. The Rangeland Journal 20, 177–205.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Holmes WE (2005) ‘Breedcow and Dynama Herd Budgeting Software Package, Version 5.05 for Windows. Training Series QE99002.’ (Queensland Department of Primary Industries and Fisheries: Townsville)

Hunter RA (2007) Methane production by cattle in the tropics. The British Journal of Nutrition 98, 657.
| Crossref | GoogleScholarGoogle Scholar | CAS | PubMed | open url image1

Hunter RA, Magner T (1988) The effect of supplements of formaldehyde-treated casein on the partitioning of nutrients between cow and calf in lactating Bos indicus × Bos taurus heifers fed a roughage diet. Australian Journal of Agricultural Research 39, 1151–1162.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Intergovernmental Panel on Climate Change (1996) ‘IPCC guidelines for national greenhouse gas inventories. Greenhouse gas inventory reference manual. Vol. 3.’ (IPCC WG1 technical support unit, Hadley Centre, Meteorological Office: Bracknell, UK)

Johnson KA, Johnson DE (1995) Methane emissions from cattle. Journal of Animal Science 73, 2483–2492.
|  CAS | PubMed |
open url image1

Kurihara M, Magner T, Hunter RA, McCrabb GJ (1999) Methane production and energy partition of cattle in the tropics. The British Journal of Nutrition 81, 227–234.
|  CAS | PubMed |
open url image1

Makeham JP , Malcolm LR (1993) ‘The farming game now.’ (Cambridge University Press: Cambridge)

McKeon GM, Day KA, Howden SM, Mott JJ, Orr DM, Scattini WJ, Weston EJ (1990) Northern Australia savannas: management for pastoral production. Journal of Biogeography 17, 355–372.
| Crossref | GoogleScholarGoogle Scholar | open url image1

SCA (1990) ‘Feeding standards for Australian livestock, ruminants.’ Standing Committee on Agriculture. (CSIRO Publications: Melbourne)

Tothill JC , Gillies C (1992) ‘The pasture lands of northern Australia: their condition, productivity and sustainability.’ Occasional Publication No.5. (Tropical Grassland Society of Australia: Brisbane)

Vercoe JE (1970). Fasting metabolism and heat increment of feeding in Brahman × British and British cross cattle. In ‘Energy metabolism of farm animals. Proceedings of the 5th symposium on energy metabolism in farm animals’. Publication no. 13. pp. 85–88. (European Association of Animal Production)