Livestock Biosecurity Network Vibriosis Dr Sarah-Jane Wilson Regional Manager Northern Australia June 2015
Vibriosis/Campylobacteriosis Cattle Venereal disease (mating or AI) Bulls – bacteria present in prepuce, penis and semen Cows – Reproductive tract Sheep Spread by ingestion of contaminated water or feed (placental/aborted material, faeces)
Clinical signs Cattle: No obvious signs in bulls In cows – abortion and infertility Cows returning to oestrus Low conception and/or calving rates Sheep: Abortions Extended breeding season. Low lambing rates Poor milk supply Weak and dying lambs
Prevention * Vaccinate bulls (and cows) annually (2 shot initial course) * Vaccination should be given 4 weeks before joining. * Use CHS to demonstrate pre-purchase vaccinations in bulls * Culling older bulls Vaccination regimes: 1. Do not vaccinate 2. Vaccinate all bulls 3. Vaccinate all heifers 4. Vaccinate all bulls and heifers 5. Vaccinate all bulls, heifers and cows.
MLA disease prioritisation study: Estimated annual economic cost of the priority diseases for cattle in Australia Source: Lane et al (2015), p6.
Vaccination options: Sheep 1. Maiden ewes 2. Ewe lambs if joining them 3. Annual booster to adult ewes on stud properties. Initially 2 doses 4 – 6 weeks apart pre joining, yearly booster (for studs)
Prevention: Running maiden ewes with older ewes before mating (for exposure) Protect water supplies from contamination Biosecurity measures for introduced animals pre-purchase vaccinations, induction protocols including quarantine, predator control.
Questions??? Sarah-Jane Wilson – sjwilson@lbn.org.au
Other resources on vaccinations http://www.mla.com.au/mbfp/Herd-health-and-welfare/Tool-62-Cattle-disease- vaccines http://www.makingmorefromsheep.com.au/healthy-contented-sheep/index.htm FutureBeef – https://futurebeef.com.au/knowledge-centre/husbandry/vaccinations- for-beef-cattle/
Photo credits and references Slide 3: http://www.britannica.com/science/campylobacteriosis Slide 4: www.africavet.co.za; www.abc.net.au; www.old.elensburg.com; www.sheep101.info Slide 5 :www.imgkid.com; Slide 6: Fitzpatrick,S. (2006) Botulism Poisoning in Cattle in the Northern Territory, viewed online at http://www.nt.gov.au/d/Content/File/p/Anim_Dis/651.pdf; https://cattleproducer.wordpress.com/category/animal-welfare-2/page/3/; http://www.infonet-biovision.org/default/ct/671/animalDiseases Slide 8: www.Britannica.com/science/campylobacter Slide 9: http://www.slideshare.net/schoenian/parturition; www.vetnext.com Slide 10: www.cattletoday.com Slide 11: Lane et al (2015), Priority list of endemic diseases for the red meat industries. Meat and Livestock Australia, Sydney. Slide 13: Lane et al (2015), Priority list of endemic diseases for the red meat industries. Meat and Livestock Australia, Sydney. Slide 14: www.thesentimentalbloke.com Slide 16:http://www.britannica.com/science/Leptospira; www.dairy.edu.au Slide 17: http://alonso-amelot.yolasite.com/english.php; www.vetsonline.com