Mastitis Control Don Crowley, Tom Weldon Teagasc/Dairygold.
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Transcript of Mastitis Control Don Crowley, Tom Weldon Teagasc/Dairygold.
Mastitis Control
Don Crowley, Tom Weldon Teagasc/Dairygold.
Mastitis Control/SCC Control
• Don Crowley B.Agr.Sc
• Tom Weldon B.Agr.Sc
• Joint Program with Dairygold Co-op.
• On-Farm Investigation
• Recommendations to Tackle problem.
Teagasc Dairygold Joint Programme on Milk Quality
Don Crowley, Tom Weldon & Ger McMahon
Goals:
• Reduce SCC & Mastitis
Method:
• Visit farm at milking.(800 farms visited)
• Analyse Records, Equipment and Practices
• Recommendations made.
• Usually 1 follow up call
Results (SCC) of Farms Visited ’07 vs’08
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
SCC<200,000 SCC>400000
SCC levels
Pe
rce
nt
2007 2008 24%
11%
27%
13%
Typical scenarios
• Scenario 1:
• A high cell count on a farm, but no cases of mastitis, using no tubes !!!
• Scenario 2:
• A farm with a low cell count, getting a lot of cases of Clinical mastitis and using a lot of tubes.
• Scenario 3:
• High incidence of E.coli mastitis.
Recent survey results:
• 65% of clinical mastitis cases occurring in the first 5 Days of Lactation.
• 5% in the second 5 days.
• 30% in the remainder of lactation.
Prevention is time well spent.
Mastitis2 Categories of Bacteria
• Contagious Bacteria:– Staph Aureus– Strep Agalactiae
• Environmental Bacteria:– E. Coli– Strep Uberus
Approach to Mastitis Problem
Assess the present situation• Farm Visit (at milking)
• Costs: Co-op fines, tubes, treatments, vet bills, milk lost, cull rates
• Labour, frustration
• Analysis of records(not always available)
Case Study - SCCFarmer A
14 Unit parlour, no ACR’s, 100 cows (30 Aut, 70 Spring)
1700 Gallon average, 23% Replacement rate
259
280
298
255
265
253
271
304
282
236
125
150
175
200
225
250
275
300
325
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
SCC
Case StudyObservations & Recommendations
• Milking practices observed:
• Cow teats scored for damage i.e. odema, congestion Hyperkeratosis 50% > score of 4
• Cow comfort and stress e.g. electrical issues
measured
• Milking machine tested
Case Study -Teat End Damage
Case Study Recommendations/Goals
• Stop over milking (Teat end damage).
• Stop spread of infection.
• Pre-spray & dry wipe,
• Disinfect clusters(between each cow) for 2 wks.
• Wear gloves
• Post spray all cows.
Yearly SCC '97 - '08
280 282
304
219
143
271
298
259
253
265
236
255
125
150
175
200
225
250
275
300
325
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Case Study - Financial Reward• Bonus = € 3,082.00
• Additional milk sales = € 4,500.00
• Reduced Vet and tube = € 1,500.00
• 3 cows not culled = € 2,200.00
• Reward = €11,282.00 pa
Main Mastitis Causes:
• Main cause
• Milking machine = 33%
• Milking practices = 33%
• Infection Control/Hygiene = 33%
Cubicle Bedding
Teat End Damage
Teat end damage
Teat end Damage