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Ontario bulk milk somatic cell count reduction program: progress and outlook

J M Sargeant1, Y H Schukken, K E Leslie

  • 1Department of Population Medicine, University of Guelph, ON, Canada.

Journal of Dairy Science
|July 31, 1998
PubMed
Summary
This summary is machine-generated.

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The Ontario somatic cell count (SCC) reduction program successfully lowered average milk SCC, but inhibitor violations increased. Future efforts require engaging farms with lower SCC and incentivizing good udder health management.

Area of Science:

  • Dairy Science
  • Animal Health
  • Food Safety

Background:

  • Somatic cell count (SCC) is a key indicator of udder health in dairy herds.
  • Effective management programs are crucial for reducing SCC and ensuring milk quality.
  • Ontario, Canada implemented a comprehensive SCC reduction program over a decade.

Purpose of the Study:

  • To evaluate the effectiveness of Ontario's SCC reduction program.
  • To analyze trends in bulk milk SCC and related quality parameters.
  • To project future scenarios for milk quality management.

Main Methods:

  • Analysis of 10 years of monthly data from ~9500 Ontario dairy farms.
  • Inclusion of milk yield, component, and quality measurements (bulk milk SCC, plate loop count, inhibitor presence).

Related Experiment Videos

  • Statistical assessment of program step impacts and cross-classification analysis.

    • Main Results:

    • Four of five program steps significantly reduced mean monthly bulk milk SCC by ~80 x 10(3) cells/ml.
    • A significant increase in monthly inhibitor violations was observed.
    • Inhibitor violations were higher on farms with elevated bulk milk SCC, particularly those between 150-450 x 10(3)/ml.

    Conclusions:

    • The Ontario SCC reduction program achieved initial success in lowering average SCC.
    • Further SCC reduction necessitates active participation from farms with lower SCC.
    • Addressing increased inhibitor violations and incentivizing proactive udder health management are critical for future success.