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Dietary overlap between cattle and chital in the Queensland dry tropics

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Watter, K., Baxter, G. S., Pople, A. and Murray, P. J. (2020) Dietary overlap between cattle and chital in the Queensland dry tropics. The Rangeland Journal, 42 (3). pp. 221-225.

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Article Link(s): https://doi.org/10.1071/RJ20075

Publisher URL: https://www.publish.csiro.au/paper/RJ20075

Abstract

Chital deer (Axis axis) are an ungulate species introduced to northern Queensland, Australia, in an environment where land is managed for large scale cattle production. Rainfall and pasture growth are markedly seasonal and cattle experience a nutritional shortfall each year before monsoon rain. The presence of chital is perceived by land managers to reduce dry-season grass availability and this study sought to estimate the potential effect of free-living chital on regional cattle production. Diet overlap was greatest during the wet season when both ungulates principally consumed grass, and least during the dry season when chital diet comprised only ~50% grass. Using local estimates for energy values of wet and dry season grass, and the maintenance energy requirements of chital and cattle, we estimated the relative dry-matter seasonal grass intakes of both ungulates. The grass consumed annually by 100 chital could support an additional 25 cattle during the wet season and an additional 14 cattle during the dry season.

Item Type:Article
Business groups:Biosecurity Queensland
Keywords:Axis axis, cattle, Chital deer, co-grazing, diet, dry matter digestibility, dry tropics, forage, grazing, grazing equivalents, introduced species, rangelands, seasonal, ungulates.
Subjects:Agriculture > Agriculture (General) > Agriculture and the environment
Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Animal culture > Cattle
Animal culture > Rangelands. Range management. Grazing
Animal culture > Feeds and feeding. Animal nutrition
Deposited On:08 Nov 2020 23:38
Last Modified:18 Nov 2020 03:17

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