INTRODUCTION - 8 - CLEANING_Bulk Tank Bacteria Diagnosis

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* 1. Enter first and last name

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* 2. To address high bacteria counts in farm milk, we can use a differential diagnosis to determine the most likely cause of the high counts.

Select all the answers that match each of the bacteria counts with their characteristics.

Standard Plate Count (SPC): is a broad spectrum test that indicates the total number of bacteria, but not what kind

Lab Pasteurized or Thermoduric Count (LPC): is the best indication of a persistent cleaning failure

Coliform Count (Coli): is the best indicator of milking hygiene problems and environmental contamination of milk

Standard Plate Count (SPC): is a routine test done by the milk plant

Coliform Count (Coli): relies on the fact that pasteurization eliminates mastitis bacteria and common environmental organisms

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* 3. Select all of the sources of bacteria in milk.

environmental organisms can incubate in milking machines during milking

cows can shed large numbers of mastitis organisms periodically, leading to SPC spikes

Strep ag, Strep uberis, Staphylococcus, and coliforms in the bulk tank

bacteria from cow teats and udders can be significant contributors to the SPC

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* 4. Select all the answers that match the bulk tank bacteria counts with their "warning" levels.

SPC: 5,000 cfu/ml

LPC - Thermoduric Count or Coliform Count: 5,000 cfu/ml

LPC - Thermoduric Count or Coliform Count: 100 cfu/ml

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* 5. Bulk tank cultures should be performed regularly because they provide:

early warning signs of a problem

background history of data to aid interpretation

a means to solve problems quickly

all of the above

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* 6. Tests like plate loop counts (PLC) and total bacteria counts (TBC) are good broad-spectrum tests that indicate the total number of bacteria but not the type of bacteria or the source of the problem.

True

False

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* 7. Pasteurization eliminates mastitis bacteria and common environmental organisms, but not some other types of bacteria.

True

False

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* 8. Select all that match the diagnostic test with its best diagnostic use.

Lab pasteurized count (LPC): This is the best indicator of a persistent cleaning failure.

Coliform count (Coli): This is the best indicator of milking hygiene problems and the environmental contamination of milk.

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* 9. Select the best answer. Coliforms usually indicate:

A fecal contamination

Mastitis

Insufficient diet

Coliforms are not a good diagnostic indicator

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* 10. Select all that apply. The following are factors that contribute to the growth of bacteria already in the milking machine:

Cleaning failure

Long milking time

Poor cooling

Short milking time

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* 11. Select all that match the type of bacterial test with the bacterial count that indicates that immediate action should be taken to lower it. Answers may be used more than once.

50,000 cfu/ml: Standardplate count

750 cfu/ml: Lab pasteurized count

INTRODUCTION - 8 - CLEANING_Bulk Tank Bacteria Diagnosis

Question Title

* 1. Enter first and last name

Question Title

* 2. To address high bacteria counts in farm milk, we can use a differential diagnosis to determine the most likely cause of the high counts.Select all the answers that match each of the bacteria counts with their characteristics.

Question Title

* 3. Select all of the sources of bacteria in milk.

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* 4. Select all the answers that match the bulk tank bacteria counts with their "warning" levels.

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* 5. Bulk tank cultures should be performed regularly because they provide:

Question Title

* 6. Tests like plate loop counts (PLC) and total bacteria counts (TBC) are good broad-spectrum tests that indicate the total number of bacteria but not the type of bacteria or the source of the problem.

Question Title

* 7. Pasteurization eliminates mastitis bacteria and common environmental organisms, but not some other types of bacteria.

Question Title

* 8. Select all that match the diagnostic test with its best diagnostic use.

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* 9. Select the best answer. Coliforms usually indicate:

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* 10. Select all that apply. The following are factors that contribute to the growth of bacteria already in the milking machine:

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* 11. Select all that match the type of bacterial test with the bacterial count that indicates that immediate action should be taken to lower it. Answers may be used more than once.

* 2. To address high bacteria counts in farm milk, we can use a differential diagnosis to determine the most likely cause of the high counts.

Select all the answers that match each of the bacteria counts with their characteristics.