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Beyond the Bale : Feb - Mar 08 Supplement
ECO-TRENDS SUPPLEMENT BEYOND THE BALE 7 Principle: Strategies that use available tools in a coordinated manner to minimise costs -- parasite control costs and production losses -- to growers Integrated parasite management (IPM) Chemicals to control external parasites (e.g. flies and lice) MANAGEMENT STRATEGIES Chemicals to control internal parasites (e.g. worms) Genes for resistance to parasites Parasite reser voir in the environment (e.g. worm lar vae and flies) worms (low worm-egg count) and, in winter- rainfall regions, for less scouring (low dag score); ú setting targets for ewe condition score at lambing and weaner bodyweight over summer/ autumn and monitoring progress towards meeting these targets; and ú use of protein meal supplements during late pregnancy in summer-rainfall regions to increase worm resistance. Lice: ú instituting a lice biosecurity plan, which could include checking lice history and quarantining purchased or agisted sheep, preventing strays, guarding against the introduction of lice by contractors or shearers who have recently been on an infested property and coordinating treatment with neighbours; ú monitoring for lice before shearing or crutching and at other times when sheep are yarded; and ú if lice are detected, treat thoroughly with an effective chemical at next shearing, regardless of whether or not a long-wool treatment was used -- all sheep must be mustered and treated. Flystrike: ú correct tail docking and mulesing (or replacement technology); ú strategic timing of crutching and shearing ; ú selecting sheep with reduced susceptibility to both body and breech strike; ú controlling scouring through good worm control, selection for low dag score and nutritional management; ú strategic application of pesticides with regard to fly biology, flystrike risk and residues; and ú other methods that may be applicable on some properties, including choice of low-flystrike- risk paddocks for the most susceptible sheep, and the strategic use of flytraps. ú More information: www.wool.com.au/ipm Practical IPM and breeding tools WormBoss www.wormboss.com.au WormBoss was developed by the Australian Sheep Industry Cooperative Research Centre (Sheep CRC) and AWI to help producers meet the challenge of controlling internal parasites.WormBoss represents the state of knowledge on sheep worms and their management. It has been assembled by leading parasitologists, researchers, extension officers, consultants, drench manufacturers and drench resellers. Contact: Dr Johann Schröder, AWI project manager, animal health and welfare, 02 8295 3100, firstname.lastname@example.org LiceBoss www.liceboss.com.au LiceBoss is a decision-support system that can help woolgrowers determine the need for a louse treatment, choose the most cost-effective control option and minimise residues. Click the TOOLS button to use LiceBoss, or the LICE INFO button to access information on lice control. Contact: Dr Johann Schröder, AWI project manager, animal health and welfare, 02 8295 3100, email@example.com IPM-s website www.wool.com.au/ipm Working in conjunction with universities, government departments and hundreds of Australian woolgrowers, AWI is developing a best-practice method of managing parasites to minimise their impact on productivity. The website includes IPM-s management protocols for summer rainfall, winter rainfall and Mediterranean regions. Contact: Dr Johann Schröder, AWI project manager, animal health and welfare, 02 8295 3100, firstname.lastname@example.org Sheep Genetics www.sheepgenetics.org.au Sheep Genetics is the national genetic information and evaluation service for the wool and meat sectors of the sheep industry. MERINOSELECT is the service within Sheep Genetics for Merino ram breeders and commercial wool producers. Developed in conjunction with Meat and Livestock Australia, Sheep Genetics calculates the across-flock progeny breeding values for more than 40 key traits, including resistance to parasites. Contact: Sheep Genetics manager Richard Apps, 02 6773 2948, email@example.com; MERINOSELECT project officer Sam Gill, 02 6773 2948, firstname.lastname@example.org Merino Superior Sires http://mss.anprod.csiro.au This annual report, produced in collaboration with the Australian Merino Sire Evaluation Association (AMSEA) and CSIRO, allows direct comparison of Merino sires evaluated at seven medium-wool and five fine-wool Central Test Sire Evaluation sites across Australia. It includes resistance to parasites traits. Contact: Ben Swain, AMSEA executive officer, 02 6743 2306, email@example.com INTEGRATED PARASITE MANAGEMENT
Dec - Jan 08
Feb - Mar 08