GlanEry combines two sheep vaccines in one - Elders Rural Services

GlanEry combines two sheep vaccines in one

Combining two sheep vaccinations in one, Zoetis Australia is about to launch GlanEry 7 in 1 B12. The product is a new formulation that combines Glanvac 6 B12 and Eryvac.

GlanEry 7 in 1 B12 will protect sheep and lambs against seven endemic sheep diseases in Australia; Erysipelas arthritis, Cheesy Gland (CLA) and the five main clostridial diseases (pulpy kidney, tetanus, malignant oedema, black disease and black leg), all in a convenient 1 millilitre dose.  According to Meat & Livestock Australia, these diseases collectively cost the Australian sheep industry approximately $90 million annually2.

Zoetis Livestock Veterinary Team associate director Dr Kelly Graham said the addition of Erysipelas protection into the Zoetis Glanvac 6 in 1 range was important.

“Erysipelas arthritis, caused by the bacteria Erysipelas rhusiopathiae, is the most common cause of lame lambs on farm and results in significant losses both on farm and at the abattoir,” Dr Graham said.

“Losses on farm are due to culling, poor growth rates and reduced trading options if animals are unfit to load, and abattoir losses are associated with trim, reduced carcase weights and potential carcase condemnations.”

There are three common bacteria associated with arthritis; Erysipelas, Chlamydia and pus-forming bacteria, all of which are commonly found on the sheep’s skin, in the soil and the environment. Although it is difficult to isolate the causative bacteria when investigating arthritis, recent survey work in southern Australia by Joan Lloyd3 (2016) found that 57.6 per cent of culture positive samples included Erysipelas.

In a Western Australia study, Paton et al(2003), showed that 100pc of culture positive cases included Erysipelas. In a southern NSW survey, Ferguson and Munro5 (2014) showed that 86.3pc of culture positive samples included Erysipelas. This research confirms that Erysipelothrix rhusiopathiae is the most common cause of bacterial joint infections in Australian lambs.

Arthritis causes significant loss of production as a result of poor weight gain and reduced wool production in lame lambs, and failure to thrive in lambs with chronic arthritis. An abattoir study1 showed that lambs with arthritis had a reduction in total carcase weight of (HSCW) 1.2 kilograms compared to healthy lambs without arthritis. This does not include the losses due to trim, which have been estimated at approximately 3kg per carcase6. In Western Australia, Paton et al 4 (2003) also estimated that 1.4pc of lambs born, died before weaning or are culled due to arthritis.

”Erysipelas is found all over Australia and it can persist for a long time in the environment, including in water,” Dr Graham said.

“It is carried on to a farm by many ways; from introduced sheep i.e. sheep that are chronically infected, by feral pigs, and a variety of other native animals, in fact over 30 species of wild birds and at least 50 species of wild mammals are known to harbour Erysipelas, as well as cattle, dogs, kangaroos and mice.

“All these animals and birds provide an extensive reservoir, as a source of environmental contamination. So, given this bacterium can survive in the environment and is carried by a range of animals, contamination on any farm can change from year to year, therefore if a farm doesn’t experience infection one year it does not mean it won’t experience problems in subsequent years.”

The most recently published annual report (2018 – 2019) from the National Sheep Health Monitoring Project7, representing the abattoir findings of approximately 8.7 million sheep inspected across Australia, showed a high percentage of sheep lines had evidence of arthritis. Erysipelas arthritis is a significant issue in Australia.

GlanEry 7 in 1 B12 has been developed in Australia and is manufactured in Melbourne, Victoria. GlanEry 7 in 1 B12 provides the convenience of two vaccines in one with premium disease protection, so will save time, labour and cost whilst making sheep vaccination simple and easy.

Article written by Zoetis for Seasons Magazine.

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1. Lloyd et al (2018) Trimming and production losses associated with bacterial arthritis in lambs presented to an abattoir in southern Australia, Animal Production Science
2. MLA 2015 Priority list of endemic diseases for the red meat industries, Project B.AHE.0010
3. MLA 2016 An investigation of the potential link between arthritis and tail length in sheep, Project B.AHE.0238
4. Paton et al, Effect of mulesing and shearing on the prevalence of Erysipelthrix rhusiopathiae arthritis in lambs, Aust Vet J, Vol 81, No 11, November 2003
5. Ferguson E, Munro J (2014) Incidence over a 3 month period of Erysipelothrix rhusiopathiae as a cause of polyarthritis in sheep carcasses in abattoirs in Southern NSW, The official Newsletter of the Australian Sheep Veterinarians
6. Farquharson B (2007) Arthritis in Prime Lamb Sheep, A Review. MLA Project B.AHW.123
7. NSHMP Annual Report 2018-19