Teat spraying has been proven to prevent new infections as long as the entire circumference of the teat for at least half of its length is coated with sanitizer (Pankey and Watts, 1983).
Maximum effectiveness is achieved through teat spraying immediately after cups are removed as this is the time of highest risk of infection - the teat end is open and remains open until a keratin plug forms to protect the teat canal.
Spray the teat of every cow at every milking for best practice. Spray teats in a continuous circular motion. A circular movement of the gun lance ensures correct coverage while maintaining an economical consumption rate. For effective Mastitis pathogen control the teats must be completely covered with disinfectant, within 20-30 seconds after cup removal. The nozzle should ideally be positioned approximately 15cm below teats.
Use a ‘solid cone’ nozzle for optimum teat coverage. A ‘hollow ring’ spray pattern can result in parts of the teat, or even the entire teat not being sprayed - see diagram on the right.
Mastitis costs the New Zealand Dairy Industry an estimated $60-$80 million p.a. That’s over $4,000 per farm. The cost of treating a clinically infected cow is typically $70 in antibiotics and lost production. On top of that is the cost of any grades and the waste of people’s time.
An independent trial was undertaken by QCONZ comparing an Ambic Teat spray system with a hand help teat sprayer. The results of this trial concluded that not only did the Ambic Teat Sprayer use less Teat Spray chemical but also was 28% better teat coverage than hand-held sprayer.
Learn more about Mastitis detection
Ambic vacuum operated teat spraying offers a fast and efficient method of mastitis control for the largest herd. Following simple step by step instruction, the Ambic system can be installed in under two hours using a drill, screwdriver and cable ties.
Annual servicing of the directional valve and replacement of the air filter takes about 5 minutes. This is all that is necessary to ensure on-going trouble free operation. The plastic lance, solid cone gun is recommended for best practice application of teat spray due to it’s extended reach and non adjustable nozzle to ensure the correct spray is applied every time. It is recommended that teats be sprayed within 30 seconds of cup removal.
|PERFORMANCE COMPARISONS OF A HAND HELD TEAT SPRAYER VS AMBIC VACUUM OPERATED TEAT SPRAYING SYSTEM|
|HAND HELD TEAT SPRAYER - 150KPA||HAND HELD TEAT SPRAYER - 70KPA||AMBIC TEAT SPRAYER|
|Average front teat coverage||82.5%||56%||89%|
|Average back teat coverage||52%||37%||80%|
|Teat spray cost over a season including wattage||$12.18 per cow
$3,471 per average
NZ Dairy farm
|$8.52 per cow
$2,428 per average NZ Dairy farm
SAVINGS OF $1,043 plus BETTER TEAT COVERAGE
|Down time spent refilling and pressurizing sprayer||20 hours 16 minutes per milking season||0 minutes|
|Field trials conducted by QCONZ at Waikato Institute of Technology (WINTEC)
Financial figures quoted above are conservative.