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Meat Quality of Bison Slaughtered in a Mobile or Stationary Abattoir. Jayson Galbraith, M.Sc., P.Ag. Elk/Bison Specialist Alberta Agriculture and Rural Development CBA Convention November 22, 2009. Outline. Description of overall multi-location abattoir project Bison project

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meat quality of bison slaughtered in a mobile or stationary abattoir

Meat Quality of Bison Slaughtered in a Mobile or Stationary Abattoir

Jayson Galbraith, M.Sc., P.Ag.

Elk/Bison Specialist

Alberta Agriculture and Rural Development

CBA Convention November 22, 2009

outline
Outline
  • Description of overall multi-location abattoir project
  • Bison project
  • The mobile unit in the field
  • What was found (some results)
  • Next steps
slide3

Technical and business feasibility of multi-location abattoirs

  • Project Partners:
    • Alberta Agriculture and Rural Development
      • Regulatory Services Division
      • Food Safety Division
      • Rural Extension and Industry Development
    • Olds College, Meat Program
    • Lacombe Research Centre
slide4

The project has three phases

Phase I. Project organization, MLA unit design and construction

Phase II. Initial testing of the MLA unit, writing HACCP based operational plans, obtaining provincial meat inspection approval

Phase III. Field testing of the abattoir (including the bison project), data collection and reports

slide6

MLA

  • Plants maximum size is limited by the highway transportation regulations. The trailer dimensions
    • Length 53 ft
    • Width 8 ft
    • Height 14 ft
opportunity
Opportunity
  • Local markets- for rural areas

(Roininen et al , 2006)

  • Provincially inspected meats

Bison - AB- 2827 (15%)

Elk - AB- 896 (20%)

Cattle- 6.5% across Canada

field testing bison study
Field testing- Bison study
  • Compare meat quality and physiological stress in bison exposed to different pre-slaughter treatments
  • Provide baseline values against which the effects of pre-slaughter treatments could be evaluated in further research with bison
measurements
Measurements
  • Muscle temperature, and cold carcass pH
  • Glycogen potential
  • Bruising
  • Drip loss
  • Shear value
  • Proximate analyses
  • Sensory panel
  • Color
  • Fecal corticosterone
  • Blood cortisol
slide13

Rapid browning of bison meat

  • Important issue for fresh meat sales
  • Reasons for rapid discoloration
other objectives of mla bison project
Other objectives of MLA bison project
  • Develop an operating procedure that results in maximum benefit of utilization of MLA on farms
    • Farm setup requirements
    • Procedure for field shooting, handling etc.
  • Business analysis of unit, feasibility
  • Differentiated product, domestic markets
bruising
Bruising
  • 2/55 quite bad (6-8kg). One MP, one S
  • 46/55 none or a ‘1’ score
conclusions and implications
Conclusions and Implications
  • Improved meat tenderness was seen in bison slaughtered on-farm through a mobile abattoir compared to those transported to a stationary abattoir
  • On-farm, the penned group resulted in more favorable carcass color and driploss measurements over the confined group
    • This has implications supporting low-stress handling of bison
publication expectations
Publication expectations
  • Short paper and poster at International Congress of Meat Science & Technology
  • Meat quality of bison slaughtered in a mobile or stationary abattoir
  • Physiological stress of bison slaughtered in a mobile or stationary abattoir
  • Bison meat fatty acid profile