J Cosmo Newbery

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J Cosmo delays giving the farm an answer...


Dear Mr Opong,

Your email is received and understood. I recognise that your preferences are to go with this supplier.

I am enquiring as to whether the trial consignment can be any smaller and will get back to you.

I am a little concerned that the vaccine is meant to be 97% and yet a previous batch that was stronger than this resulted in stock deaths.

There is not much scope for the vaccine to be much stronger than 97%. There is only a 3% tolerance there. Are you sure this is correct? If the vaccine is that potent there is a real possibility that small variations in vaccine strength, injection volumes and cattle body weight make the administering of such a vaccine very precarious and could cost you much money.

On my own stations we use "FOSTERSLAGER". This is only 35-40% active, but permits much greater latitude for operator error.

Please let me know your thoughts.

Yours sincerely,

J Cosmo Newbery.


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