Mr bailey agri science
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The Dairy Industry. Mr. Bailey Agri-Science . Where does the milk come from?. Process of producing milk is called lactation Occurs after birth of a calf Milk production occurs in the udder. Mammary Gland (Udder). How do I get the milk out?. Cows are milked by machines

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Presentation Transcript
Mr bailey agri science

The

Dairy

Industry

Mr. Bailey

Agri-Science


Where does the milk come from
Where does the milk come from?

  • Process of producing milk is called lactation

  • Occurs after birth of a calf

  • Milk production occurs in the udder



How do i get the milk out
How do I get the milk out?

  • Cows are milked by machines

  • Udder is cleaned before and after milking

  • Helps to avoid contamination


Milk i m going on a trip
Milk- “I’m going on a trip”

  • Goes to processing plant

  • Checked for bacteria and infection

  • Sits for cream to raise and be removed

  • Cream contains fat


Milk what happens when i get the plant
Milk- “What happens when I get the plant.”

  • Homogenization- large cream globules are reduced to the size of the milk globules

  • Homogenized milk – cream will not separate from the milk


Milk what s next
Milk- “What’s next.”

  • Pasteurization- milk is heated and cooled to kill any harmful organisms

  • Grading

    • A – beverage milk

    • B – manufacturing dairy products (cheese, butter, yogurt)


The difference in milk
The Difference in Milk

  • Whole milk- contains fat

  • 2% - contains some fat

  • 1% - contains little fat

  • Skim- contains no fat

A gallon of milk weights between 8.5 - 8.8 lbs. depending on fat content.


Milk processing video
Milk Processing Video

  • http://www.bing.com/videos/search?q=how+is+milk+processed&view=detail&mid=0B63C31979253215D8610B63C31979253215D861&first=41


Common breeds of dairy cattle
Common Breeds of Dairy Cattle

  • Holstein – 90% of U.S. dairy cattle

  • Jersey – high in butterfat and protein

  • Guernsey

  • Brown Swiss




Exit slip
Exit Slip

  • Identify the process milk takes from the farm to what you buy in the store based on the information learned today.


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