Limitations to pasture and sheep enterprises and options for improvement in the Victorian Mallee
S. M. Robertson A C and R. K. Wimalasuriya BA Primary Industries Research Victoria, Department of Primary Industries, Private Bag 1, Walpeup, Vic. 3507, Australia.
B Economics Branch, Department of Primary Industries, 13/8 Nicholson Street, Melbourne, Vic. 3002, Australia.
C Author for correspondence; e-mail: susan.robertson@dpi.vic.gov.au
Australian Journal of Experimental Agriculture 44(9) 841-849 https://doi.org/10.1071/EA03030
Submitted: 11 January 2003 Accepted: 24 October 2003 Published: 22 October 2004
Abstract
A survey of 29 sheep producers was conducted to benchmark current sheep production practices and producer attitudes to sheep and pasture management in the Victorian Mallee. This report describes the farming systems, defines current sheep management practices and identifies management issues that are limiting production. It also highlights limitations of adoption, suggests potential adoption rates of specific practices by producers, and estimates increases in productivity achievable. Sheep producers could achieve small gains in farm productivity (an estimated average 0.3% annually) by adopting sheep management practices including using superior genetics, reducing ram numbers and introducing supplementary feeding. Possible reasons why recommended practices have not been adopted are discussed. The difficulty of integrating sheep into current short cropping systems was considered to be a key limitation to the adoption of management that could substantially increase productivity, such as higher stocking rates and winter–spring lambing. Important benefits to both productivity and environmental sustainability may be achieved through the replacement of fallowed land with improved pastures. However, a lack of data on the feed base and sheep production in relation to a changing feed base made it impossible to estimate the size of these benefits. It was concluded that further research is needed to collect data and benchmark pasture and livestock enterprises to allow quantification of the potential impact on farm profit of changes to pasture and sheep management in this region.
Additional keywords: adoption, cropping, management, whole farm system.
Acknowledgments
The participation of the producers who willingly gave their time for this project is gratefully acknowledged. Project team members Chris Korte, Kieran Ransom, Ivan Mock and John Brown assisted with the direction of the project, while other DNRE staff made valuable comments. Ted Wolfe made constructive comments on the manuscript.
Anderson JR, Parton KA
(1983) Techniques for guiding the allocation of resources among rural research projects: state of the art. Promethus 1, 180–201.
| Crossref |
Butler LG,
Corkrey SR,
Knox IJ,
Hannan G, Thomson RP
(1995) Perceptions and knowledge of measurement in selection programs: a survey of stud Merino breeders in Australia. Australian Journal of Experimental Agriculture 35, 681–692.
| Crossref |
Cajas S, Hinch GN
(1998) Lupin supplementation of Merino ewes grazing native pasture in New England: effects on birth weight and maternal behaviour. Animal Production in Australia 22, 286.
Coelli KA, Atkins KD
(2000) This analysis of a Merino ewe enterprise supports the economic merit of fine wool bloodlines. Wool Technology and Sheep Breeding 48, 277–284.
Corbett JL, Furnival EP
(1976) Early weaning of grazing sheep. 1. Growth of lambs. Australian Journal of Experimental Agriculture and Animal Husbandry 16, 149–155.
| Crossref |
Corbett JL, Furnival EP
(1976) Early weaning of grazing sheep. 2. Performance of ewes. Australian Journal of Experimental Agriculture and Animal Husbandry 16, 156–166.
| Crossref |
Dove H,
Freer M,
Axelsen A, Downes RW
(1984) Supplementary feeding of ewes in prime lamb production systems. Proceedings of the Australian Society of Animal Production 15, 329–332.
Fogarty NM,
Gilmour AR, Hopkins DL
(1997) The relationship of crossbred lamb growth and carcass traits with lambplan EBVs of sires. Proceedings of the Association for the Advancement of Animal Breeding and Genetics 12, 304–309.
Gavigan RG, Parker WJ
(1997) Sheep breeding objectives and selection criteria of Wairarapa and Tararua sheep farmers. Proceedings of the New Zealand Society of Animal Production 57, 3–36.
Guerin LJ, Guerin TF
(1994) Constraints to the adoption of innovations in agricultural research and environmental management: a review. Australian Journal of Experimental Agriculture 34, 549–571.
| Crossref |
Harris DJ, Nowara G
(1995) The characteristics and causes of sheep losses in the Victorian Mallee. Australian Veterinary Journal 72, 331–340.
| Crossref |
PubMed |
Knopke P,
Strappazzon L, Mullen J
(1995) Productivity growth. Total factor productivity on Australian broadacre farms. Australian Commodities 2, 486–497.
Latta RA, Carter ED
(1998) Increasing production of an annual medic-wheat rotation by grazing and grass removal with herbicides in the Victorian Mallee. Australian Journal of Experimental Agriculture 38, 211–217.
| Crossref | GoogleScholarGoogle Scholar |
Leys J, McTainsh G
(1995) Soil loss and nutrient decline by wind erosion — cause for concern. Australian Journal of Soil and Water Conservation 7, 30–35.
Lloyd Davies H
(1988) Mechanisms for assessing priorities in animal production research. Proceedings of the Australian Society of Animal Production 17, 103–114.
Murphy PM,
McNeill DM,
Fisher JS, Lindsay DR
(1996) Strategic feeding of Merino ewes in late pregnancy to increase colostrum production. Proceedings of the Australian Society of Animal Production 21, 227–230.
O’Connell MG,
O’Leary GJ, Incerti M
(1995) Potential groundwater recharge from fallowing in north-west Victoria, Australia. Agricultural Water Management 29, 37–52.
| Crossref | GoogleScholarGoogle Scholar |
Radcliffe JC
(1988) Research priorities — a bureaucrats view. Proceedings of the Australian Society of Animal Production 17, 109–110.
Ridge PE
(1986) A review of long fallows for dryland wheat production in southern Australia. Journal of the Australian Institute of Agricultural Science 52, 37–44.
Rigby S, Latta R
(1995) The performance of medics in the Mallee. The Mallee Farmer Newsletter May 12, 10–11.
Sadras V,
Roget D, Krause M
(2003) Dynamic cropping strategies for risk management in dry-land farming systems. Agricultural Systems 76, 929–948.
| Crossref | GoogleScholarGoogle Scholar |
Trengrove CL
(1990) Opportunities for improvement in sheep and beef cattle production in the south east of South Australia. Proceedings of the Australian Society of Animal Production 18, 404–407.