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Related Experiment Videos

Estimating milk yield of sows.

V C Speer, D F Cox

    Journal of Animal Science
    |November 1, 1984
    PubMed
    Summary

    Reducing hourly milk yield measurements in sows can save time and labor. Measuring from hour 3 to 5 provides an unbiased estimate for later hours, with minimal impact on accuracy.

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    Area of Science:

    • Animal Science
    • Reproductive Biology
    • Swine Production

    Background:

    • Accurate assessment of milk yield is crucial for swine production efficiency.
    • Traditional methods of measuring milk yield involve extensive hourly sampling.
    • Optimizing measurement protocols can reduce labor and resource demands.

    Purpose of the Study:

    • To evaluate the impact of reducing the number of hourly milk yield measurements in sows.
    • To determine the minimum number of measurements needed for a reliable estimate of total milk production.
    • To identify potential time and labor savings in swine milk yield assessment.

    Main Methods:

    • Collected hourly milk yields from crossbred and Yorkshire X Landrace sows over nine consecutive hours.
    • Utilized piglet weighing before and after nursing to quantify milk intake.
    • Analyzed four distinct data sets based on sow parity and breed.

    Main Results:

    • Significant differences in milk yield were observed in the first two hours of measurement.
    • Hourly yields from hour 3 to 5 were not significantly different from hours 3 to 9 in most data sets.
    • Using hours 3-5 for estimation yielded unbiased results for most sows, with a minor increase in standard error.

    Conclusions:

    • Reducing hourly milk yield measurements to hours 3-5 is a viable method for sows, except for first-parity sows.
    • This shortened procedure offers significant time and labor savings in swine research and production.
    • Optimized milk yield measurement protocols can enhance the efficiency of swine management practices.

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