Pak Dairy Info
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Selection of Animals

Farm Building


Record Keeping

Sanitation & Hygiene





Body Condition Scoring

Milk Quality




Picture Gallery

Milk Borne Disease



Causative Agent

Source of Infection




Bacillus anthraces

Milk handlers

External form:

Malignant pustule, red inflamed swelling and fever

Internal form:

Pneumonia with haemorrhage

Boiling of milk for 40 minutes

Autoclaving at pressure of 15 lbs

Prevent environment contamination of milk by boiling


Chlostridium botulinum 


Vomiting, abdominal pain and difficulty in vision later nervous symptoms consisting double vision, drooping of eyelid dilatation of pupil

Adequate heat treatment of milk

Cool and storage at 100 oC


Bacillary Dysentery

Shigella flexneri, Sh. sonnei, Sh. dysenteries

Milk handlers

Dysentery, fever, meningeal symptoms

Strict sanitary discipline is enforced in dairy workers.

Heat treatment of milk


Brucella abortus, Br. meletensis, Br. suis

Milch animals

Pain in joint and back, temperature is usually undulant, headache, liver and spleen enlarge. It causes abortion in female

Adequate heat treatment of milk

Eradication of disease from dairy animals by test and elimination method

Control of disease by vaccination


Cholera vibrio

Milk handler, soil, hand of patient and carrier

Painless diarrhea and vomiting, initially skin is dry and wrinkled leg, eyes deeply shrunken

Heat treatment of milk

Coli infection

Pathogenic strain of Escherichia coli

Milk handlers

Gastroenteritis and pneumonia 

Milk from quarter affected with mastitis should not be used

Adequate heat treatment of milk

Cooling and storage at 10 oC

Chlostridium Welch infection

Chlostridium welch

Milk, milk handlers

Gastroenteritis, vomiting, weakness and dehydration

Heat treatment of milk

Immediate cooling of milk at 10 oC or below


Corynebacterium progenies

Milk handlers

Chilliness and depression, sometimes vomiting and diarrhea, uneasiness in throat, difficulty, stiffness of back and neck

Heat treatment of milk,

Examination of milk handlers


Pasteruella multocida

Milch animals

Fever pneumonia

Microorganism is destroyed at the usual pasteurization temperature

To prevent recontamination of milk after pasteurization

Q fever

Coxiella burnetti (Rickettsial)

Milch animals, milk

Fever, sever headache and some forms of infection of lungs often causes pneumonia

Calving shed should be away from milk shed

Adequate heat treatment of milk and prevent recontamination

Staphylococcal interotoxic gestroenteritis

Staphylococus aureus

Milk handlers, milk

Sever nausea and vomition, diarrhea of less importance, weak pulse, subnormal temperature, sever prostration

Autoclaving at 15 lbs. for 20 min causes almost destruction of organism

Immediate cooling of milk to 10 oC or below

Streptococcal infection

Streptococci of Group A

Milk handlers milch animals

Scarlet fever, sore throat, difficulty in swallowing and breathing

Health control of dairy workers

Exclusion of milk from mastitis affected quarters

Adequate heat treatment of milk

Adequate cooling of milk

Tick born encephalitis

Tick borne encephalitis virus

Milch animals especially goats milk

High rise of temperature, drowsiness, headache, mental confusion and encephalitis

Adequate heat treatment of milk

Immediate cooling of milk at 10 oC


Mycobacterium tuberculosis

Milk handlers milch animals

Cough of an irritable nature particularly in the morning. Loss of appetite and lose of weight, diarrhea or constipation. Pleurisy causing pain in chest temperature is of swinging type. Enlargement of lymph gland

Eradication of bovine tuberculosis

Adequate heat treatment of milk

Health control of dairy workers


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