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Crovect 1.25% w/v Pour-on Solution for Sheep:  Dosage and administration
 
 
Crovect 1.25% w/v Pour-on Solution for Sheep
Crovect 1.25% w/v Pour-on Solution for Sheep
Dosage and administration
Crovect is administered by means of a recommended Crovect applicator as follows:
Lice
5 ml per 20 kg bodyweight, up to a maximum of 20 ml.
Bodyweight
Dose
Doses per litre
Up to 20 kg
 5 ml
200
21–40 kg
10 ml
100
41–60 kg
15 ml
 66
Over 60 kg
20 ml
 50
Using the straight nozzle on the recommended Crovect applicator gun apply as a pin stream from the shoulders to the rump along the middle of the backline.
Sheep may be treated off-shears or anytime during the year.
Crovect  Lice Pic
Ticks
Adult sheep and lambs over 10 kg – 10 ml per 20 kg bodyweight, up to a maximum of 40 ml. One treatment will give 10 weeks cover.
Lambs under 10 kg – 5 ml followed 3 weeks later by a 10 ml application.
Bodyweight
Dose
Doses per litre
Up to 10 kg
 5 ml
200
11–20 kg
10 ml
100
21–40 kg
20 ml
 50
41–60 kg
30 ml
 33
Over 60 kg
40 ml
 25
Using the straight nozzle on a recommended Crovect applicator gun apply as a pin stream from the crown of the head to the top of the rump.
Crovect Ticks pic
Headflies
5 ml per animal irrespective of size.
Apply to the top of the head between the ears, using the T-bar nozzle.
Take care not to apply the product in the sheep's eyes.
One application of Crovect before the start of the headfly season will give up to 4 weeks protection.
Re-treat as required.
Crovect Headfly Pic
Blowflies
Prevention of blowfly strike:
Bodyweight
Dose
Doses per litre
Up to 25 kg*
20 ml
50
25–40 kg
30 ml
33
Over 40 kg
40 ml
25
*Do not administer to animals of less than 12.5kg bodyweight at the blowfly prevention dose.
Apply as a fan-spray to the surface of the fleece on the back and hindquarters of the sheep using a recommended Crovect applicator gun fitted with a fan spray nozzle. Half the dose should be applied on the shoulders, back and flanks and half to the rump. The distance between the nozzle and the fleece should be approximately 20 cm. Each dose will require 2 or 3 sweeps to apply. THE PRODUCT WILL PREVENT BLOWFLY STRIKE ONLY ON AREAS COVERED BY SPRAY. One application will give 6–8 weeks protection. Re-treat as required.
Treatment of Blowfly Strike
Apply directly to all the affected parts at the rate of 2.5 ml per 100–150 cm2 (roughly the size of a hand). The T-bar nozzle should be used. Most strikes will require 5–10 ml. Ensure that all affected parts are treated. A single application is sufficient to ensure that larvae are expelled and killed within a few hours.
Crovect Blowfly Strike pic
This product contains a blue dye to aid in the identification of treated animals. The colour is temporary and will fade from the fleece within 48 hours of application.
           
 
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  Date updated: 30 September 2011