Metacam dose for a chicken

Re: Metacam dose for a chicken

Mark Rowland — Mon, 17 Sep 2012 20:55:14 GMT

True but it means you are covered (and as stated the residues are minuscule)

Re: Metacam dose for a chicken

Michael Woodhouse — Mon, 17 Sep 2012 20:44:45 GMT

[quote user="Mark Rowland"]The minimum statutory withdrawal periods are as follows:[/quote]

Yes, but the word 'minimum' does put the onus on us rather!

Re: Metacam dose for a chicken

Mark Rowland — Mon, 17 Sep 2012 20:36:10 GMT

VMD website:

"Setting an appropriate withdrawal period for food producing species treated with medicines under the Cascade 22. The withdrawal period is the period of time following treatment of animals with a

veterinary medicine in which the meat, milk, eggs or honey from the treated animal must not enter the human food chain due to the possible presence of residues from pharmacologically active substances. It is determined by scientific studies conducted on the target species and is stated on the SPC for the authorised medicine.

23. Where a product is used under the Cascade in a food producing species the veterinary surgeon is responsible for defining an appropriate withdrawal period in all cases. Such a withdrawal period has to be selected to ensure that residues above the MRL will not occur. If the product is administered to a species not identified on the SPC, or to an authorised species but at a higher dosage than recommended, it is necessary to apply the minimum statutory withdrawal periods, or the withdrawal period stated on the SPC, whichever is longer. The minimum statutory withdrawal periods are as follows:

7 days for eggs and milk

28 days for meat from poultry and mammals

500 degree days for meat from fish"

Thats why I go with 7 days for eggs and 28 days for meat.

Re: Metacam dose for a chicken

Marie Kubiak — Mon, 17 Sep 2012 20:20:05 GMT

Yup, but we must jump through the hoops!

Re: Metacam dose for a chicken

An On MRCVS — Mon, 17 Sep 2012 20:18:23 GMT

All nonsense anyway as the amount of NSAID in a bird is nothing even if entire dose consumed by one human (extremely unlikely!!)

Re: Metacam dose for a chicken

Marie Kubiak — Mon, 17 Sep 2012 20:16:11 GMT

Follicular maturation takes 7-10 days so in theory anything circulating in bloodstream at day 0 of that could end up in an egg up to 11 days later regardless of whether it has already been cleared from other tissues by that stage. So if a drug is theoretically present in meat up to 15days it could be present in yolk for up to 26 days. And rounding to 28 days is just to make it easy for clients to remember! I'm not sure that ovary is included in residue testing in mammals for offal but the physiology of follicle development is different so not as logical as you'd assume following mammal rules.

Re: Metacam dose for a chicken

An On MRCVS — Mon, 17 Sep 2012 19:49:59 GMT

[quote user="Marie Kubiak"]

Meat withdrawal in cattle is 15 days so I recommend 15d for meat and 28d for eggs.

Marie

[/quote]

I hope im not being really thick here but how can you have a meat withhold that is shorter than an egg withhold? surely this means that after 15 days you could eat the whole chicken (ovaries and all if you wanted) but not the eggs? Sorry I dont understand

Re: Metacam dose for a chicken

Mark Rowland — Mon, 17 Sep 2012 15:40:23 GMT

I put a 7 day egg withhold on metacam, based on advice from the VDS.

Re: Metacam dose for a chicken

Marie Kubiak — Mon, 17 Sep 2012 15:12:10 GMT

I use 0.4mg/kg and give orally for short courses. Meat withdrawal in cattle is 15 days so I recommend 15d for meat and 28d for eggs.

Marie