IE41893L - Detection of mastitis during milking - Google Patents

Detection of mastitis during milking

Info

Publication number
IE41893L
IE41893L IE751707A IE170775A IE41893L IE 41893 L IE41893 L IE 41893L IE 751707 A IE751707 A IE 751707A IE 170775 A IE170775 A IE 170775A IE 41893 L IE41893 L IE 41893L
Authority
IE
Ireland
Prior art keywords
cells
outputs
milk
conductivity
norm
Prior art date
Application number
IE751707A
Other versions
IE41893B1 (en
Original Assignee
Douglas Dorrien Allenby Fraser
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Douglas Dorrien Allenby Fraser filed Critical Douglas Dorrien Allenby Fraser
Publication of IE41893L publication Critical patent/IE41893L/en
Publication of IE41893B1 publication Critical patent/IE41893B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/04—Dairy products
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J5/00—Milking machines or devices
    • A01J5/013—On-site detection of mastitis in milk
    • A01J5/0133—On-site detection of mastitis in milk by using electricity, e.g. conductivity or capacitance
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J7/00—Accessories for milking machines or devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Food Science & Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Medicinal Chemistry (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

1494831 Measuring conductivity of milk D D A FRASER 2 Feb 1975 34129/74 Heading G1N Contaminated fluid, e.g. milk from a mastitis infected animal is detected by passing the fluid from different sources e.g. teats between the electrodes of separate conductivity cells, electrically energizing the cells, comparing the outputs of all cells with each other and detecting any differences. The electrical outputs may also be compared with a reference representing a healthy animal. Conductivity cells 2 mounted in the claw 1 of a milking machine are fed from oscillator 3 with 2À5 KHz A.C. The cell outputs are all compared by circuits AB-CD and, if any difference is found, a warning lamp 12R is illuminated. A "norm" is established for a milk sample from a healthy animal by adjusting potentiometer 4. Comparator 5, which includes a signal lamp then indicates if the conductivity of the milk varies from a norm, even if the outputs of all cells are the same. The comparators AB-CD each comprise a differential amplifier and a bi-stable circuit connected to the comparator output by a variable resistor which alters the trigger level permitting compensation for differences in cell parameter. [GB1494831A]
IE1707/75A 1974-08-02 1975-07-30 Improvements in methods and means for detection of microbiological organisms and other contaminants in fluids IE41893B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34129/74A GB1494831A (en) 1974-08-02 1974-08-02 Methods and means for detection of micro-biological organisms and other contaminants in fluids

Publications (2)

Publication Number Publication Date
IE41893L true IE41893L (en) 1976-02-02
IE41893B1 IE41893B1 (en) 1980-04-23

Family

ID=10361741

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1707/75A IE41893B1 (en) 1974-08-02 1975-07-30 Improvements in methods and means for detection of microbiological organisms and other contaminants in fluids

Country Status (6)

Country Link
AU (1) AU8351675A (en)
DE (1) DE2534423A1 (en)
GB (1) GB1494831A (en)
IE (1) IE41893B1 (en)
NL (1) NL7509127A (en)
SE (1) SE7508649L (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513842A (en) * 1978-07-14 1980-01-31 Eisai Co Ltd Check unit for milking of udders
DE3366234D1 (en) * 1982-06-08 1986-10-23 Ahern Michael John Sampling device for use in the sampling of biological fluids
GB2123959A (en) * 1982-07-13 1984-02-08 Ray Vaughan Milk abnormality testing aid
DE3308361A1 (en) * 1983-03-09 1984-09-13 WTW Wissenschaftlich-technische Werkstätten GmbH, 8120 Weilheim Measuring cell for determining the electrolytic conductivity of milk
HU193794B (en) * 1985-07-30 1987-11-30 Mezoegazdasagi Foeiskola Method and apparatus for diagnosing mastitis
DE4007327C1 (en) * 1990-03-08 1991-07-11 Lang Apparatebau Gmbh, 8227 Siegsdorf, De
US5664521A (en) * 1992-10-09 1997-09-09 Tickleford Limited Apparatus for and method of milking an animal
GB2257008B (en) * 1991-04-30 1994-11-09 Sidney William Simpson Sub clinical mastitis detector and excluder
IL98081A (en) * 1991-05-08 1995-01-24 Afikim Kvutzat Poalim Lehityash Method and system for investigating mastitis of a cow by measuring electrical conductivity of milk
GB2276069B (en) * 1992-10-09 1996-09-25 Atomic Energy Authority Uk Apparatus for and method of milking an animal
US20150265191A1 (en) * 2012-11-16 2015-09-24 Philip Harding Electrochemical determination of infection
CN112858313B (en) * 2021-01-14 2022-11-18 内蒙古农业大学 Sheep milk adulteration detection device

Also Published As

Publication number Publication date
AU8351675A (en) 1977-02-03
SE7508649L (en) 1976-02-03
NL7509127A (en) 1976-02-04
IE41893B1 (en) 1980-04-23
GB1494831A (en) 1977-12-14
DE2534423A1 (en) 1976-02-12

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