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Bio-economic modelled outcomes of stocking rate and drought-related management strategies in the Mitchell grass region.

Whish, G. H., Chudleigh, F., Phelps, D. and Bowen, M. (2019) Bio-economic modelled outcomes of stocking rate and drought-related management strategies in the Mitchell grass region. In: MODSIM2019 23rd International Congress on Modelling and Simulation Society of Australia and New Zealand, December 2019, Canberra, ACT, Australia..

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Abstract

Cattle and sheep grazing is the dominant land use in Queensland, occupying nearly 86% of Queensland’s 173 million hectares. High rainfall variability (inter-annual and decadal) experienced in Queensland, coupled with drought, poses major challenges for the sustainable and profitable management of grazing businesses. Stocking rate flexibility, or the degree cattle stocking rates increase or decrease after good and poor pasture growing seasons, is reported as a key strategy for pasture management in northern Australia. The GRASP pasture and animal growth model and Breedcow & Dynama software were used to model breeding herd dynamics for four stocking rate flexibility strategies for a representative property in the Mitchell grasslands of central west Queensland. Farm management economic models were developed to examine the property-level implications of these drought-related stocking rate strategies, and herd level approaches to restocking and destocking.

Item Type:Conference or Workshop Item (Paper)
Business groups:Animal Science
Keywords:Representative property, stocking rate flexibility strategies, herd management, IRR
Subjects:Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Agriculture > Agriculture (General) > Agricultural conservation
Animal culture > Cattle
Animal culture > Rangelands. Range management. Grazing
Animal culture > Feeds and feeding. Animal nutrition
Deposited On:06 Feb 2020 04:41
Last Modified:06 Feb 2020 04:52

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