Got milk
Download
1 / 14

Got Milk? - PowerPoint PPT Presentation


  • 104 Views
  • Uploaded on

Got Milk?. Chapter #7. Milk. Most wholesome & complete food Oldest agricultural industry dates back 7,000 years. Care of Milk. Milk is easily contaminated with bacteria udder is close to ground Cows can carry Brucellosis causes undulant fever in humans cows are tested each year

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Got Milk?' - fonda


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Got milk l.jpg

Got Milk?

Chapter #7


Slide2 l.jpg
Milk

  • Most wholesome & complete food

  • Oldest agricultural industry

    • dates back 7,000 years


Care of milk l.jpg
Care of Milk

  • Milk is easily contaminated with bacteria

    • udder is close to ground

  • Cows can carry Brucellosis

    • causes undulant fever in humans

    • cows are tested each year

  • Pasteurization: heat to 161 degrees F for 15 seconds

    • kills bacteria


Dairy breeds l.jpg
Dairy Breeds

  • Holstein: most popular breed in U.S.

    • largest breed

    • most milk production

    • lowest butterfat in milk

    • black & white

  • Jersey: smallest breed , light brown color

    • least milk

    • most butterfat

    • fat on meat is yellow (butterfat)




Dairy breeds7 l.jpg
Dairy Breeds

  • Guernsey: milk is yellower due to high content of carotene

  • Ayrshire: newest breed, looks like Holstein but red & white

    • good foragers

  • Brown Swiss: oldest breed, dual purpose breed (meat & milk)





Milking l.jpg
Milking

  • Dairy cows require lots of high quality feed, lots of concentrates & water

  • Dairies milk 2-3 times / day

    • udder is washed & dried

    • primed by hand

    • milking machine pipes milk to a cooling tank

    • dip teats in iodine to disinfect & close sphincter muscle


Milking12 l.jpg
Milking

  • Any cows treated with antibiotics, milk is not suited to humans

    • can cause a whole truck of milk to be dumped out due to contamination

  • Lactation period = 10 months, dry = 2 months

  • Freshen: cows calve and begin to lactate

  • Colostrum: mothers first milk, loaded with antibiotics etc. for the calf

    • first 3 days milk from a cow can’t be fed to humans (feed to calf)


Milking13 l.jpg
Milking

  • Calves are usually not allowed to nurse from their mother

    • bottle fed colostrum, then milk replacer or cows milk