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Fabrication of Compressed Hosiery and Measurement of its Pressure Characteristic Exerted on the Lower Limbs

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Published on: May 27, 2020

Methods of estimating liner compression.

S Leonardi¹, J F Penry², F M Tangorra¹

¹Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, 20133 Milano, Italy.

Journal of Dairy Science

|August 10, 2015

Summary

This summary is machine-generated.

This study compared two overpressure (OP) measurement methods, recommending the limited pulsation (OP lp) method for its accuracy in simulating milking conditions. Consistent timing of OP tests is advised to reduce measurement variability.

Keywords:

artificial teat sensor liner compression overpressure

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Area of Science:

Veterinary Medicine
Agricultural Engineering
Animal Husbandry

Background:

Overpressure (OP) during machine milking can impact udder health.
Accurate measurement of OP is crucial for optimizing milking practices.
Existing methods for OP measurement may lack speed or precision.

Purpose of the Study:

To compare two methods for measuring overpressure (OP) during machine milking.
To evaluate a new test device for faster and more accurate OP measurements.
To assess the relationship between OP and liner compression.

Main Methods:

Overpressure was measured using no pulsation (OP np) and limited pulsation (OP lp) methods.
Measurements were taken on 6 cows using 6 different liners (3 round, 3 triangular).
Liner compression was estimated using a novel artificial teat sensor (ATS).

Main Results:

The OP lp method yielded slightly higher values (13.9 kPa) than OP np (13.4 kPa).
OP values decreased significantly during sequential measurements, indicating variability.
A high correlation was observed between OP and liner compression, though ATS faced challenges with triangular liners.

Conclusions:

The limited pulsation (OP lp) method is recommended for OP measurement due to its closer approximation of actual milking conditions.
Standardizing OP test timing, specifically 1 minute after teatcup attachment, is crucial for reducing measurement variability.
The new test device offers advantages in speed and accuracy for OP assessment in milking systems.