Grazing pressure, land condition, productivity and profitability of beef cattle grazing buffel grass pastures in the subtropics of Australia: a modelling approach
M. K. Bowen A C and F. Chudleigh B
+ Author Affiliations
- Author Affiliations
A Department of Agriculture and Fisheries, Rockhampton, PO Box 6014, Red Hill, Qld 4701, Australia.
B Department of Agriculture and Fisheries, Toowoomba, Qld 4350, Australia.
C Corresponding author. Email: maree.bowen@daf.qld.gov.au
Animal Production Science 58(8) 1451-1458 https://doi.org/10.1071/AN17780
Submitted: 8 November 2017 Accepted: 3 April 2018 Published: 26 April 2018
Abstract
There is widespread evidence that beef cattle land managers in Queensland are using stocking rates for perennial pastures that are substantially higher than recommended guidelines, and some indication that these decisions are motivated by perceived financial and economic benefits. Considerable effort has been, and is currently being, applied by public-sector organisations to encourage producers to reduce grazing pressure from beef cattle across Queensland’s pastoral lands. A better understanding of the relationships among stocking rate, land condition and profitability of beef-grazing enterprises is imperative to better inform cattle producers and policy makers. The present study assessed the effect of grazing pressure and land condition on the productivity and profitability of a steer-turnover enterprise utilising buffel grass (Cenchrus ciliaris) pastures in central Queensland. A property-level, regionally relevant herd model was used to determine whole-of-business productivity and profitability over a 30-year investment period. Growth paths for steers from weaning to marketing were developed for 16 scenarios encompassing a range of pasture-utilisation rates (30%, 35% and 50% of annual biomass growth), land condition (A, B and C) and market targets (feedlot entry at 474 kg or slaughter at 605 kg). The economic effect of each scenario was assessed by comparison to a base scenario of 30% pasture utilisation and turn-off of slaughter steers. Our analyses demonstrated a large economic advantage from increasing grazing pressure above 30% utilisation for buffel grass pastures, even with assumptions of declining land condition and animal performance. For instance, producing slaughter steers under a 50% pasture-utilisation regime with a continuous decline in land condition from A to C (and, hence, productivity) over Years 10–30 was AU$21 772/annum more profitable than was a 30% pasture-utilisation strategy, which is widely recommended as closer to a long-term, safe utilisation rate. The present research has provided insights into the relationship between grazing pressure and economic returns of beef producers over the medium term. However, it should be considered as a scoping study due to the paucity of data for effects of utilisation rate on the productivity of buffel grass pastures and, hence, on land-condition rating. Further research is required to better understand the effects of utilisation rate of buffel grass, and other sown pasture grass and legume species, on plant biomass production, plant-diet quality for cattle, land-condition decline and cattle productivity.
Additional keywords: farm management economics, stocking rate, steer, tropical pastures.
References
Australian Bureau of Agricultural Resources and Economics and Sciences (ABARES) (2017) ‘Agricultural commodities: March quarter 2017.’ (Australian Bureau of Agricultural and Resource Economics and Sciences: Canberra)Australian Bureau of Statistics (ABS) (2014) ‘Land account: Great Barrier Reef region, experimental estimates 2014.’ Available at http://www.abs.gov.au/AUSSTATS/abs@.nsf/Lookup/4609.0.55.001Main+Features12 014? [Verified April 2017]
Australian Bureau of Statistics (ABS) (2016) ‘7503.0 value of agricultural commodities produced, Australia, 2014–15.’ Available at http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/7503.02014-15? [Verified April 2017]
Beutel TS, Tindall D, Denham R, Trevithick R, Scarth P, Abbott B, Holloway C (2014) Getting ground cover right: thresholds and baselines for a healthier reef. Report to the Reef Rescue Research and Development Program. Reef and Rainforest Research Centre, Cairns, Qld.
Bowen MK, Buck SR, Gowen R (2010) High-output forage systems for meeting beef markets: Phase 1. Project B.NBP.0496 final report. Meat and Livestock Australia, Sydney.
Bowen M, Buck S, Chudleigh F (2015a) ‘Feeding forages in the Fitzroy. A guide to profitable beef production in the Fitzroy River catchment.’ (State of Queensland, Department of Agriculture and Fisheries: Brisbane, Qld)
Bowen MK, Chudleigh F, Buck S, Hopkins K, Brider J (2015b) High-output forage systems for meeting beef markets: Phase 2. Project B.NBP.0636 final report. Meat and Livestock Australia, Sydney.
Bowen MK, Chudleigh F, Buck S, Hopkins K (2018) Productivity and profitability of forage options for beef production in the subtropics of northern Australia. Animal Production Science 58, 332–342.
| Productivity and profitability of forage options for beef production in the subtropics of northern Australia.Crossref | GoogleScholarGoogle Scholar |
Brodie J, McKergow LA, Prosser IP, Furnas M, Hughes AO, Hunter H (2003) Sources of sediment and nutrient exports to the Great Barrier Reef World Heritage Area. Report number 03/11. Australian Centre for Tropical Freshwater Research, Townsville, Qld.
Buck S (2017) ‘Pasture dieback: past activities and current situation across Queensland. Agric.-science Queensland innovation opportunity.’ (State of Queensland, Department of Agriculture and Fisheries: Brisbane, Qld)
Burrows WH, Orr DM, Hendricksen RE, Rutherford MT, Myles DJ, Back PV, Gowen R (2010) Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 4. Animal production. Animal Production Science 50, 284–292.
| Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 4. Animal production.Crossref | GoogleScholarGoogle Scholar |
Campbell HF, Brown RP (2003) ‘Benefit–cost analysis. Financial and economic appraisal using spreadsheets.’ (Cambridge University Press: Cambridge, UK)
Chudleigh F, Oxley T, Bowen M (2017) ‘Improving the performance of beef enterprises in northern Australia.’ (State of Queensland, Department of Agriculture and Fisheries: Brisbane, Qld) Available at https://www.daf.qld.gov.au/animal-industries/beef/breedcow-and-dynama-software [Verified April 2018]
DNRM (Queensland Government, Department of Natural Resources and Mines) (2017) ‘QImagery.’ Available at https://qimagery.information.qld.gov.au/ [Verified May 2017]
Gittinger JP (1982) ‘Economic analysis of agricultural projects. EDI series in economic development.’ (The Economic Development Institute of the World Bank, John Hopkins University Press: Baltimore MD)
Hall TJ, Jones P, Silcock RG, Filet PG (2017) Grazing pressure impacts on two Aristida/Bothriochloa native pasture communities of central Queensland. The Rangeland Journal 39, 227–243.
| Grazing pressure impacts on two Aristida/Bothriochloa native pasture communities of central Queensland.Crossref | GoogleScholarGoogle Scholar |
Johnston PW (1996) Grazing capacity of native pastures in the mulga lands of south-western Queensland: a modelling approach. PhD Thesis, University of Queensland, St Lucia, Brisbane.
Jones P, Silcock R, Scanlan J, Moravek T (2016) Spelling strategies for recovery of pasture condition. Project B.NBP.0555 final report. Meat and Livestock Australia, Sydney.
Kroon FJ, Kuhnert PM, Henderson BL, Wilkinson SN, Kinsey-Henderson A, Abbott B, Brodie JE, Turner DR (2012) River loads of suspended solids, nitrogen, phosphorus and herbicides to the Great Barrier Reef lagoon. Marine Pollution Bulletin 65, 167–181.
| River loads of suspended solids, nitrogen, phosphorus and herbicides to the Great Barrier Reef lagoon.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XotlOntL4%3D&md5=b923b9a01a1865242a8f7dd7837a4aabCAS |
MacLeod ND, McIntyre S (1997) Stocking rate impacts on the production and economic performance of steers grazing black spear grass pastures. The Rangeland Journal 19, 174–189.
| Stocking rate impacts on the production and economic performance of steers grazing black spear grass pastures.Crossref | GoogleScholarGoogle Scholar |
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.
| An economic assessment of the impact of grazing land condition on livestock performance in tropical woodlands.Crossref | GoogleScholarGoogle Scholar |
Makeham JP, Malcolm LR (1993) ‘The farming game now.’ (Cambridge University Press: Cambridge, UK)
McCosker T, McLean D, Holmes P (2010) Northern beef situation analysis 2009. Project B.NBP.0518 final report. Meat and Livestock Australia, Sydney.
McKeon GM, Ash AJ, Hall WB, Stafford-Smith M (2000) Simulation of grazing strategies for beef production in north-east Queensland. In ‘Applications of seasonal climate forecasting in agricultural and natural systems: The Australian experience’. (Eds G Hammer, N Nichols, C Mitchell) pp. 227–252. (Kluwer Academic Press: Dordrecht, The Netherlands)
McKiernan B, Gaden B, Sundstrom B (2007) ‘Dressing percentages for cattle. Primefact 340.’ (State of New South Wales, Department of Primary Industries: Sydney) Available at http://www.dpi.nsw.gov.au/__data/assets/pdf_file/0006/103992/dressing-percentages-for-cattle.pdf [Verified May 2017]
McLean I, Blakeley S (2014) Animal equivalent methodology. A methodology to accurately and consistently calculate cattle grazing loads in northern Australia. Project B.NBP.0779 final report. Meat and Livestock Australia, Sydney.
McLean I, Holmes P, Counsell D (2014) The northern beef report. 2013 northern beef situation analysis. Project B.COM.0348 final report. Meat and Livestock Australia, Sydney.
McLennan SR (2014) Optimising growth paths of beef cattle in northern Australia for increased profitability. Project B.NBP.0391 final report. Meat and Livestock Australia, Sydney.
McLennan SR, Poppi DP (2016) ‘QuikIntake version 5 spreadsheet calculator.’ (Department of Agriculture and Fisheries, Queensland: Brisbane, Qld)
NRDR (2007) ‘Nutrient requirements of domesticated ruminants.’ (CSIRO Publishing: Melbourne)
O’Reagain PJ, Bushell JJ (2011) ‘The Wambiana grazing trial. Key learnings for sustainable and profitable management in a variable environment.’ (The State of Queensland, Department of Employment, Economic Development and Innovation: Brisbane, Qld)
O’Reagain PJ, Bushell J, Holmes B (2011) Managing for rainfall variability: long-term profitability of different grazing strategies in a northern Australia tropical savanna. Animal Production Science 51, 210–224.
| Managing for rainfall variability: long-term profitability of different grazing strategies in a northern Australia tropical savanna.Crossref | GoogleScholarGoogle Scholar |
O’Reagain P, Scanlan J, Hunt L, Cowley R, Walsh D (2014) Sustainable grazing management for temporal and spatial variability in north Australian rangelands: a synthesis of the latest evidence and recommendations. The Rangeland Journal 36, 223–232.
| Sustainable grazing management for temporal and spatial variability in north Australian rangelands: a synthesis of the latest evidence and recommendations.Crossref | GoogleScholarGoogle Scholar |
Orr DM, Phelps DG (2013) Impacts of utilisation by grazing on an Astrebla (Mitchel grass) grassland in norther-western Queensland between 1984 and 2010. 1. Herbage mass and population dynamics of Astrebla spp. The Rangeland Journal 35, 1–15.
| Impacts of utilisation by grazing on an Astrebla (Mitchel grass) grassland in norther-western Queensland between 1984 and 2010. 1. Herbage mass and population dynamics of Astrebla spp.Crossref | GoogleScholarGoogle Scholar |
Orr DM, Burrows WH, Hendricksen RE, Clem RL, Back PV, Rutherford MT, Myles DJ, Conway MJ (2010) Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 1. Pasture yield and composition. Crop and Pasture Science 61, 170–181.
| Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 1. Pasture yield and composition.Crossref | GoogleScholarGoogle Scholar |
Queensland Department of Primary Industries (QDPI) (2003) ‘Rainman StreamFlow V 4.3.’ (Department of Agriculture, Fisheries and Forestry: Brisbane, Qld) Available at https://www.daf.qld.gov.au/plants/field-crops-and-pastures/broadacre-field-crops/cropping-efficiency/rainman/download [Verified May 2017]
Quirk M, McIvor J (2003) ‘Grazing land management: technical manual.’ (Meat and Livestock Australia: Sydney)
Rickert KG, Stuth JW, McKeon GM (2000) Modelling pasture and animal production. In ‘Field and laboratory methods for grassland and animal production research’. (Eds L ‘t Mannetje, RM Jones) pp. 29–66. (CABI Publishing: New York)
Robinson LJ, Barry PJ (1996) ‘Present value models and investment analysis.’ (The Academic Page: Northport, AL)
Rolfe JW, Larard AE, English BH, Hegarty ES, McGrath TB, Gobius NR, De Faveri J, Srhoj JR, Digby MJ, Musgrove RJ (2016) Rangeland profitability in the northern Gulf region of Queensland: understanding beef business complexity and the subsequent impact on land resource management and environmental outcomes. The Rangeland Journal 38, 261–272.
| Rangeland profitability in the northern Gulf region of Queensland: understanding beef business complexity and the subsequent impact on land resource management and environmental outcomes.Crossref | GoogleScholarGoogle Scholar |
Shaw KA, Rolfe JW, English BH, Kernot JC (2007) A contemporary assessment of land condition in the Northern Gulf region of Queensland. Tropical Grasslands 41, 245–252.
Silcock RG, Jones P, Hall TJ, Waters DK (2005) Enhancing pasture stability and profitability for producers in Poplar Box and Silver-leaved Ironbark woodlands. Project NAP3.208 final report. Meat and Livestock Australia, Sydney.
Star M, Rolfe J, Donaghy P, Beutel T, Whish G, Abbott B (2013) Targeting resource investments to achieve sediment reduction and improved Great Barrier Reef health. Agriculture, Ecosystems & Environment 180, 148–156.
| Targeting resource investments to achieve sediment reduction and improved Great Barrier Reef health.Crossref | GoogleScholarGoogle Scholar |
Stobbs TH (1975) Factors limiting the nutritional value of grazed tropical pasture for both beef and milk production. Tropical Grasslands 9, 141–150.
The State of Queensland (2013) ‘Reef water quality protection plan 2013. Securing the health and resilience of the Great Barrier Reef World Heritage Area and adjacent catchments.’ (The Reef Water Quality Protection Plan Secretariat: Brisbane, Qld)
Thorburn PJ, Wilkinson SN (2013) Conceptual frameworks for estimating the water quality benefits of improved agricultural management practices in large catchments. Agriculture, Ecosystems & Environment 180, 192–209.
| Conceptual frameworks for estimating the water quality benefits of improved agricultural management practices in large catchments.Crossref | GoogleScholarGoogle Scholar |
Thorburn PJ, Wilkinson SN, Silburn DM (2013) Water quality in agricultural lands draining to the Great Barrier Reef: a review of causes, management and priorities. Agriculture, Ecosystems & Environment 180, 4–20.
| Water quality in agricultural lands draining to the Great Barrier Reef: a review of causes, management and priorities.Crossref | GoogleScholarGoogle Scholar |
Thornton C, Elledge A (2013) Runoff nitrogen, phosphorus and sediment generation rates from pasture legumes: an enhancement to reef catchment modelling. Project RRRD009 report to Reef Rescue Water Quality Research and Development Program. Reef and Rainforest Research Centre, Cairns, Qld.
Whish G (2011) ‘Land types of Queensland. Version 2.0. Prepared by the Grazing land Management Workshop Team, PRO7-3212.’ (Department of Employment, Economic Development and Innovation: Brisbane, Qld) Available at http://www.futurebeef.com.au/knowledge-centre/land-types-of-queensland/ [Verified May 2017]
Wythes JR, Brown MJ, Shorthose WR, Clarke MR (1983) Effect of method of sale and various water regimens at saleyards on the liveweight, carcass traits and muscle properties of cattle. Australian Journal of Experimental Agriculture and Animal Husbandry 23, 234–242.
Yin RK (1994) ‘Case study research: design and methods.’ 2nd edn. (Sage Publications: Thousand Oaks, CA)
