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GlanEry and Eryvac Vaccine Cost Benefit Calculator

This calculator is designed as a basic tool to quantify erysipelas arthritis losses from (farm and at the processor) and develop a potential ROI from an effective vaccination program. It does not factor in increases turn off time, labour or disposal costs associated with the disease.

1. Enterprise Dynamics

4000

%

3400

2. Enterprise Targets

$

$221.00

3. Erysipelas Vaccine Cost

$

Erysipelas vaccine 1st dose - PRIMER

$0.70

Erysipelas vaccine 2nd dose - BOOSTER

$0.70

Erysipelas vaccination - Primary Protocol 1st Year (PRIMER + BOOSTER)

$1.40

Erysipelas vaccination - Annual Protocol 2nd Year onwards (BOOSTER)

$0.70

# GlanEry price per dose will be halved in the calculations to determine benefit of Erysipelas protection separate from Cheesy Gland (CLA), Clostridials protection and Vitamin B12 supplementation.

The most common cause of bacterial arthritis in Australian sheep is Erysipelas5

4. Quantifying the Cost of Arthritis ON FARM

%

Number of lambs lost or culled due to arthritis

48

Cumulative cost on-farm due to arthritic lambs

$10,519.60

5. Quantifying the Cost of Arthritis at PROCESSING DISCOUNTS

%

Number of Chronic Arthritis affected carcases

67

Value of HSCW Reduction / carcase

$10.20

Cumulative HSCW Loss

$683.89

%

Number of Chronic Arthritis affected carcases

67

Value of trim / carcase

$25.50

Cumulative Trim Loss

$1709.72

CALCULATE

Results

  • 1st YEAR
  • 2nd YEAR
  • ON-GOING

Return On Investment

Complete Effective Vaccination Program Ewes and Lambs

All Ewes @ Joining/Scanning & Pre-Lambing (2 doses in unvaccinated ewe) Lambs @ Marking & Weaning (2 doses in all lambs)

First year expenditure only

$10,360.00

ON-FARM LOSSES

$10,519.60

ABATTOIR LOSSES

$2,393.61

Total loss due to bacterial arthritis

(NB: Erysipelas arthritis is the most common cause of bacterial arthritis in Australia5)

$12,913.21

Profitability after all losses & costs are attributed

$2,553.21

ROI

25%

References

  1. Paton et al. Effect of mulesing and shearing on the prevalence of Erysipelothrix rhusiopathiae arthritis in lambs.. Aust Vet J, Vol 81, No 11, November 2003
  2. Animal Health Australia - Arthritis Fact Sheet (https://www.animalhealthaustralia.com.au/nshmp)
  3. Lloyd et al (2018) Trimming and production losses associated with bacterial arthritis in lambs presented to an abattoir in southern Australia. Animal Production Science
  4. Farquharson B (2007). Arthritis in Prime Lamb Sheep, A Review. MLA Project B.AHW.0123.
  5. MLA 2016 An investigation of the potential link between arthritis and tail length in sheep, Project B.AHE.0238

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