Non-contact thermometry in the milking stopping control system

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The paper deals with the detection of “idle milking” times for individual quarters of the udder in a group of dairy cows (randomly selected) in a parallel 2 × 12 milking parlour. A non-contact laser thermometer Raynger ST-6 was used to measure temperatures of the inner surfaces of liners instantly after milking. In a group of 12 dairy cows, the minimum liner temperature after milking was 15.3°C, the maximum temperature was 28.9°C. It follows from the regression correlation that an increase in the cooling time by 1 second decreases the temperature of the liner inner surface by 0.0324°C. On average, fore left quarters were milked idle 2.55 min, fore right 2.21 min, rear left 0.24 min, rear right 0.56 min. Differences in the temperatures of liner inner surfaces determined between fore and rear udder quarters were statistically significant; the negative statistically significant correlation coefficient was recorded between the total milking time and the temperature of liners in fore quarters (r = –0.7802++, resp. r = –0.6058+). … full description

Bibliographic Details

Main Author

Ivan Karas

Other Authors

Roman Gálik

Document Type

Articles

Physical Description

6 il.

Published in

Czech Journal of Animal Science. -- ISSN 1212-1819. -- Roč. 50, č. 5 (2005), s. 196-200

Subjects

mléčný skot

dojení

čas

mléčné žlázy

teplota

měření

teploměry

lasery

faktory prostředí

DAIRY COWS

MILKING

TIME

MAMMARY GLANDS

TEMPERATURE

MEASUREMENT

THERMOMETERS

LASERS

SITE FACTORS

more… less…

Item Description

3 grafy, 1 schéma, 2 tabulky

Bibliography

Bibliografie na s. 200 (18 zázn.)