How do you inject sheep with cydectin?

[scrubbuster]

I jag anything new that comes onto the farm with cydectin. The instructions say to jag at the base of the ear. I find this very difficult and the sheep don't like it and in most cases the stuff comes back out of the injection site

 

[llamedos]

I jag anything new that comes onto the farm with cydectin. The instructions say to jag at the base of the ear. I find this very difficult and the sheep don't like it and in most cases the stuff comes back out of the injection site

use short needles and inject toward the floor, rather than up toward the ear, if you pinch enough skin, it shouldnt then be forced out, like it is perhaps doing now

 

[scrubbuster]

What is the reason for being at the base of the ear? What is wrong with under the skin of the neck?

 

[Hilly]

Would it be ok to use cydectin while the tups are out ?

 

[llamedos]

What is the reason for being at the base of the ear? What is wrong with under the skin of the neck?

I have never used base of ear, always just go down the neck a bit to where can pinch some skin.

 

[scrubbuster]

Yeah me too! was hoping someone would say that. Surely as long as its under the skin?

 

[Hilly]

Yeah me too! was hoping someone would say that. Surely as long as its under the skin?

Na im sure there is something special about putting it in the ear, someone might no better, but I think if not they wouldn't tell you to do it on the ear ??

 

[neilo]

Yeah me too! was hoping someone would say that. Surely as long as its under the skin?

I asked and was told that it was 'only licenced for use at the base of the ear' . I did mine at the base of the ear this Spring, as @llamedos said. Didn't pinch any skin up, just at an angle pointing down and with a short needle. Did the ewes in a CombiClamp, which certainly made it easier, but the barren yearlings where b*tches to do. Cleaned the ground up well though, and have hardly wormed anything since. I have a bunch of ewe lambs that are supposed to be getting tested for an HCC wormer survey, but I still can't get the egg count high enough to start that.

 

[lizness]

Is it like Naxcel for cows that you should do in the fat at the base of the ear for withdrawal time something to do with not getting into meat? Naxcel has a very short milk withdrawal (but only if done there a vet once told me) I don't know if it is that that bit of cow doesn't get eaten or whether it is to do with the fat? Used to have a cow ear shaped stress reliever like thing at the vets to show you where to put it

 

[GTB]

rubbish to injecting at the base of the ear, it just takes too long and our sheep are a bit flighty. We do them all under the skin of the neck and it works just fine. My favorite injection site is under the skin near the top of the rib cage. Miles faster that the neck and light years faster than the base of the ear.

 

[JD-Kid]

rubbish to injecting at the base of the ear, it just takes too long and our sheep are a bit flighty. We do them all under the skin of the neck and it works just fine. My favorite injection site is under the skin near the top of the rib cage. Miles faster that the neck and light years faster than the base of the ear.

reson on the neck is if a injecton mark the neck is eazy to cut off but if selling in the yard's who cares as it will not show up on your killing sheet

ear area cut off with the head so no down gradeing bit like footvax apart from it being hopeless too many ewes sent to blood and bone bin with vax marks

 

[neilo]

Of course, I don't think I would post on a public forum if I was to use a product in a way that wasn't on the data sheet. Your FA inspector might be watching......

 

[Woolless]

rubbish to injecting at the base of the ear, it just takes too long and our sheep are a bit flighty. We do them all under the skin of the neck and it works just fine. My favorite injection site is under the skin near the top of the rib cage. Miles faster that the neck and light years faster than the base of the ear.

We get a few sheep injected there which, on meat inspection, have nasty abscesses which can track in behind the shoulder blade. I try and inject on the neck and have started to use a sterimatic set-up to prevent abscesses there, which were becoming a problem. But at least they can be cut off easily!

 

[sheepwise]

Thought it was to get the longer period of action that you jag at base of ear because product lasts longer in soft muscle.Will still work under skin but don't get the extended period of cover.

 

[bovine]

Are we talking the 2% long acting injection?

The data sheet says:

The injection should be administered as a single subcutaneous injection at the base of the ear using an 18 gauge, 25 mm hypodermic needle. With the animal's head under control, the formulation should be administered about 2cm caudal from the anterior (rostral) edge of the pinna at the base of the ear. The skin at the base of the selected ear should be pinched and the product injected into the subcutaneous tissue. Following subcutaneous administration, the needle should be withdrawn from the skin as pressure is applied with the thumb at the point of insertion for several seconds. If leakage occurs then pressure should be applied for several additional seconds.

CYDECTIN 20 mg/ml LA for Sheep has been formulated specifically for subcutaneous injection in the base of the ear of sheep and must not be given by any other route of administration or to any other species.

The withdrawal period is based solely on a single injection at the base of the ear.
​

It was suggested to me the product may remain at alternative injection sites longer and make a carcase unfit for consumption once the standard withdrawal period is clear. It very strongly hints that alternative sites are not a good idea.

I would always advise people follow the data sheet instructions - they are there for a good reason. It has cost the drug company millions of pounds to get that information through complex product testing and various studies. Going against the instructions on a whim is not wise. Particularly when using a product such as a wormer where resistance is clearly building.

Personally I dislike such long acting products as they promote the development of resistant worms. I was amazed when they got the product launched.

 

[neilo]

Personally I dislike such long acting products as they promote the development of resistant worms. I was amazed when they got the product launched.

Our vets are very hot on promoting drench resistant testing, FEC and use of Zolvix/Startect once a year, but they also appear to be persuading everyone locally to use Cydectin LA as a lambing dose for cleaning pasture. Maybe there's a good margin to be had in Zolvix sales?

 

[bovine]

Maybe there's a good margin to be had in Zolvix sales?

Not really. Less so if it gets recategorised so the trade can sell it.

The issue with a long acting product is that resistance is not all or nothing. There will be partially resistant worms in the population that would die with a full dose of wormer, but survive an under dose. If you are putting the drug into a sheep and it maintains a level high enough to achieve the 100% kill for 110+ days then how long does the product continue to reduce in the sheep before there is no active left? There may be a number of weeks when very susceptible worms are killed and yet partially resistant worm survive. This is scary.

 

[JD-Kid]

here says base of ear or high in neck behind ear .... i would be guessing reacton site can be removed during killing eazer if it happened

LA's depends on the tail off time if it has a long sub dose tail would lead to higher risks

 

[Global ovine]

here says base of ear or high in neck behind ear .... i would be guessing reacton site can be removed during killing eazer if it happened

LA's depends on the tail off time if it has a long sub dose tail would lead to higher risks

That is higher risks to encouraging the development of resistant worms to that chemical family.
Generally vaccination with anthelmintics do not leave abcesses unless infection is caused by vaccination while still wet etc. Very different to footvax and Johnnes vax where the oil base sets up an inflamed site to enhance the immunity.

 

[scrubbuster]

I use it for scab prevention in sheep coming onto the farm not as a wormer. Are there any better alternatives?