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Solving your animal health problems
Dairy Parlour Check List
DenVet Products
Specials
The dairy
Warm wet conditions favour bacterial growthUse as little water as possible prior to and during milking Prevent bacterial build-up if milk is spil ed. Thoroughly clean. Water used in the cleaning process or washing udders must be potable.
Water with a too high bacterial count in unsuitable for use in dairiesTreat with in-line chlorination: Hypochlor Generator and tablets.
Cows handled gently don't have negative associations with thedairy and wil seldom defecate or urinate in the parlour The milker
Human Staphylococcus aureus (STA) is being isolated in milk. Milkers should be healthy. Get checked by district surgeon.
Prevent bacterial spread via hands: Al milkers to use More than 30% of healthy humans harbour STA in their nasal mucosa.
Milkers should use face masks or treat regularly with Bactroban Milking order
Keep animals "clean". Milk older animals and those longer in milk last Milk first-calf-heifers first fol owed by cows-fresh-in-milk. Isolate infected quarters Effective dry cow management helps the whole system A Milking Routine
Adhering to a pre-determined routine prevents cows getting stressed.
Helps to manage milkers and ensure the process is done correctly.
Milking Routine
Teat cups attached prior to proper milk let-down tend to crawl up Elements
during the first minute of milking. Teat cups that crawl up lead to a lesscomplete and efficient milking.
Al ow 60 to 90 seconds from pre-milking stimulus to teat cup attachment.
Fore-stripping, stimulates milk let-down and clears the teat canal of any bacteria colonising the teat canal between milkings -- and thus stopping that bacteria from entering the udder or contaminating milk during milking.
This also stops other cows getting infected if the teat liners have not been Solving your animal health problems
Such stripped milk can also be used to identify clinical mastitis The teats and udders must be cleaned after fore-stripping to prevent spread F10 Disinfectant (pre-dip) 25lts (1 to 250) For herds with dry clean teats: The teats and teat bases on the udder are
wiped clean with a dry disposable paper towel For herds with wet and/or soiled teats: Wash with (warm) water. It is
best to include a disinfectant to keep water free from bacterial contamination
Teats must be completely dried with a disposable paper towel before clusters are attached. Washing and not drying before milking wil increasethe bacterial contamination of milk -- bacterial and coliform counts.
For herds with a high prevalence of mastitis and SCC: Use a pre-dip
onto clean dry teats. The aim is to reduce the bacteria present on the teat before clusters are attached. Once applied it must be left on for 20 to 30 seconds and then the teats wiped dry with a disposable paper towel.
Factors than can
Insufficient stimulation of udders before milking.
increase residual
Delayed attachment of milking units.
milk remaining in
Irregular milking intervals.
Teat injury.
Poor milking unit alignment.
Poor automatic cluster remover.
Adjustment leading to early cluster removal.
Post-milkiing
Post milking teat dipping can reduce new udder infections by up to 50%.
teat disinfection
Effective teat coverage is essential as the teat canal remains open after milking for a minimum of 30 minutes.
Teat dips remove milk residues from the teat, kil microbes which contaminate the open teat end and have a residual effect between milking.
When a teat spray is used great care must be used to ensure the whole teatis covered.
Solving your animal health problems
Back flushing
Back flushing reduces the number of bacteria on the liners between or dipping clusters cows -- but does not reduce the number of bacteria on the teat skin -- for
The extra time spent performing the correct milking procedures will
pay off by having lower SCC (better udder health), lower bacterial plate count
a higher milk yield and more comfort and longer life for the dairy cow.
Dry Cow Therapy
Far-Off Group
At the end of the dry period the cow must be completely ready for another year of hard but healthy work. This being: birth of a calf, after which her metabolism must Close-Up Group
The period around calving is a time of greatest risk. Adequate preparation and outstanding (Transition Period) care are key factors
Medication during Lactation Period
Cirulation & Cleaning of the Milking Machine
After each milking Cleaning & disinfecting in four cycles:
1.Lukewarm (30 - 38C) rinsing removes most of the milk residues after milking 2. Washing removes any remaining soil -- Low foam alkaline - usual y 10minutes 3. Disinfectant kil s remaining bacteria -- rinse again before milking4. Acid rinse removes milkstone -- usual y twice a week, depending on water hardness Solving your animal health problems
Check milking vacuum and listen & look for air leaksCheck pulsator action, check with thumb in liner Check rubber parts for breaks, tears and cleanliness Vacuum pump's oil level and belt tensionCheck that al air-bleed openings are open Check col ars of teat liners for cleanlinessOpen and clean clawpieces Check pulsatorsCheck electrical leaks and connections for tightness Disassemble and check the system for wear and tear Disassemble and clean vacuum regulators. Replace air fliters Flush pulsator lines. Wash trap inside and out and inspect float Every 1000 working Complete service
Complete disassembling of milking instal ation, general cleaning Do a monthly and 6 monthly cleaning.
Replace al wash lines and belts iof the vacuum pump

Source: http://www.denvet.co.za/Resources/Dairy%20Parlour%20Audit.pdf