Mastitis Flashcards
What are the two presentations of mastitis?
ClinicalSubclinical
What is the difference between clinical and subclinical?
Clinical we can observeSubclinical only have a high cell count
What is subclinical mastitis not associated with?
Pain
What are the two different times mastitis are seen?
Dry periodLactation infection
What is the most common type of mastitis within dry period? Lactation?
Dry period - environmentalLactation - contagious and environmental
What is Orbeseal?
A plug stuck in the end of the teat preventing infection within the dry period - physical barrier
What is the difference between contagious and environmental mastitis?
Contagious occurs within the milking parlourEnvironmental occurs outside the parlour
What type of mastitis does E. coli mainly cause?
Environmental
What type of mastitis does Stapholococcus usually cause?
Contagious
What do the contagious typically look like compared to one another?
Genetically uniform
How do the environmentally causing mastitis bacteria appear?
Genetically different
What are the risk factors with mastitis?
HostEnvironmentAgent
What is the average incidence of mastitis per year?
35 per 100 cows per year
Which region of England has slightly higher cases of mastitis every year?
South-East England
What causes mastitis?
Multiple factors - not one single thing
What occurs with a lower bulk tank somatic cell count?
More severe cases of mastitis but less of them
What type of mastitis occurs with a high bulk tank somatic cell count?
Subclinical contagious mastitis
What does mastitis impact upon in the dairy?
Quanitity of milk lost (actual and potential)Quality of milk lost (residues and penalties for high SCC)
Why does a high SCC cause penalties to the farmer?
Enzymes in the milk reducing cell count as well as making it more difficult to use in cheese
When does clinical mastitis occur?
Exposure to pathogen and then enters teat and into mammary gland
What do you see in clinical mastitis?
Always changes in milk - composition/quality/dotsSometimes other signs
Describe grade 1 clinical mastitis
Milk change onlyDecreased milk yield
What does a microfilter do in the dairy?
Takes out milk spots allowing clinical mastitis to be detected
Why is pre-stripping the teat always important in the parlour?
Main way for checking clinical mastitis