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MILK QUALITY STANDARDS AND MASTITIS FUNDAMENTALS

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MILK QUALITY STANDARDS AND MASTITIS FUNDAMENTALS – PowerPoint PPT presentation

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Title: MILK QUALITY STANDARDS AND MASTITIS FUNDAMENTALS


1
MILK QUALITY STANDARDS AND MASTITIS FUNDAMENTALS
2
What is quality milk?
3
CLEAN COWS/ UDDERS TO START!!! INSIDE AND
OUTSIDE!!!
4
CLEAN
DRY
COMFORTABLE
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PREMILKING SANITATION
8
PREMILKING SANITATION
9
FORESTRIPPING
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QUALITY MILK (cow)

LEGAL OPTIMAL Bacteria Count
(SPC) lt 100,000 lt 5000 Prelim.
Incubation (PI) -------
lt10,000 Somatic Cell Count lt 750,000
lt 150 - 200,000 ? Antibiotics/ Adulterants
none / ? NONE Flavor / Odor
excellent
excellent Rancidity (ADV)
----- lt .4 - .6
21
Proteolysis in Pasteurized 2 Milk
(?26,000, ?376,000, ?726,000, and
1,113,000 SCC/ml)
22
Milk quality Starts in here!
IT NEVER GETS BETTER!
23
MASTITIS CONTROL, PREVENTION, AND TREATMENT IN
COWS
  • Leo Timms
  • Iowa State University
  • Dairy Science Extension

24
COW MASTITIS
  • Basic mastitis facts
  • Mastitis detection
  • Mastitis control
  • Prevention
  • Treatment

25
  • Occurs in every herd
  • Decreased cow performance (milk)
  • Milk discard costs
  • Cow/ calf mortality and morbidity
  • Cow replacement costs
  • Labor costs
  • Veterinary costs
  • Feed costs (orphans)

26
Fat same Poor membrane More rancidity
protein same Casein
NaCl BSA Ig Nagase ?
15-20 less Lactose (sugar)
27
MASTITIS
  • Inflammation of the mammary gland where
    inflammation is reaction to tissue injury
  • Redness
  • Swelling
  • Heat
  • Pain
  • Loss of function
  • 99 of inflammation results from infection

28
TYPES OF MASTITIS
  • Clinical visual abnormalities(milk/udder/doe)
  • - fever - loss of appetite - depression -
    death
  • Chronic - long duration - variable signs
  • - contagious? - fibrosis (nodules) udder
    palpation
  • Subclinical No visible signs Special tests
  • Loss of function
  • Mastitis types are correlated
  • to organisms!!!

29
CALVING
WEANING
?
30
HOW MUCH MASTITIS IS IN MY HERD?
OLD?
NEW!
31
HOW DO WE FIND IT IN MY HERD?
32
MASTITIS DIAGNOSTICS
How do I look for (find mastitis)?
  • Clinical
  • -Milk - udder - systemic
  • Udder Palpation
  • Subclinical
  • Cultures Know your organisms
  • SCC CMT / Electronic

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  • lt 2 with clinical mastitis
  • Take a sample for culture

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KNOW YOUR ENEMY (germ warfare)
43
Contagious Mastitis
  • Cow to Cow
  • Who has a problem?
  • Segregate if possible!
  • Milking time spread!
  • Milking proc. / equip!
  • Teat trauma in heifers suckling / weather /
    flies sharp pastures (S.aureus)
  • Waste milk / respiratory for mycoplasma

44
Environmental Mastitis
  • Environment to Cow
  • Feces, Soil, Bedding Water
  • Environmental Contact - no Velcro
  • Stress Cow comfort, Acidosis, Disease, Weather
    , Machine misadjustment, Milking practices

45
UDDER PALPATION
46
UNDERSTANDING /USING SOMATIC CELL COUNTS (white
blood cells)
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SOMATIC CELLS ARE SPECIFIC!
Only go when and where they are needed!
49
CONTROLLING THE GAMEBad and good guys!
Teat end
50
If you cant reduce susceptibility, YOU NEED TO
LOWER EXPOSURE!!
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MONITORING IS A MUST!!!!
54
SCC
  • Herd
    Cow
  • Excellent lt150,000 lt150,000
  • Problem ? gt 200
    283,000
  • Illegal gt 750,000

55
WHAT IS A PROBLEM HIGH SCC?
  • INDIVIDUAL COW BASIS
  • gt 200 283,000 SCC!!!

56
SO YOU WANNA BE AVERAGE?
  • Leo Timms
  • Iowa State University

57
300,000 SCC
100,000 SCC
1 MILLION!
58
150,000 SCC
150,000 SCC
150,000 SCC 8 cases of clinical mastitis
59
500,000 SCC
49 cows lt 200,000 1 cow gt 20 million w/ 100
milk
50 cows at 500,000!
60
150,000 SCC(6 mo. later)
50 cows _at_ 150,000 SCC
40 new heifers, 10 aged cows Cows treated/dumped
1.6 mil. SCC
61
HERD SCC AVERAGE
  • Made up of individual cow SCCs
  • Need surveillance on individual cows
  • Need to define what a problem cow is!
  • SCC gt 300,000?

62
Current Linear SCC vs. Prev. Linear SCC
New Cases 6
Chronic 14
Cures 6
63
MONITORING FRESH COWS
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California mastitis test (CMT)
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3 grape jelly
2
0 no gel
1
70
Gel Or NO gel?
71
CONTROLLING THE GAMEBad and good guys!
Healthy teats
What bug?
Numbers? Type?
More or less bugs?
Weak or strong?
72
CONTROLLING THE GAMEBad and good guys!
X Barrier Teat dips? Sealants?
minimize bugs!
Treat bugs?
Maximize immunity!
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