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Introduction:
Antimicrobials (antibiotics) have made a major contribution to cattle health and welfare. They are vital medicines for the treatment of bacterial infections in cattle and other livestock. The emergence of antimicrobial resistance as a serious problem in human medicine has prompted concerns about the potential for crossover of resistant bacteria from livestock to the human population and the associated possibility of this impacting on the effectiveness of medical antimicrobial treatments.
Responsible Prescribing:
Antimicrobials are just one of the available tools for managing disease in livestock and should be used alongside good husbandry and preventative medicines such as vaccination. When antimicrobial treatments are necessary there is a joint responsibility between the veterinary surgeon and the farmer to ensure that antimicrobial drugs are used correctly and that all legal requirements are met; this begins from the time that the medication is prescribed. In the UK, antimicrobials are classified as Prescription Only Medicine - Veterinarian (POM-V). POM-Vs can only be prescribed by veterinary surgeons for administration to animals under their care. The Royal College of Veterinary Surgeons requires that a number of criteria should be met for an animal to fall into this category:
1. The veterinary surgeon should have been given responsibility for the animal's health by its owner or guardian.
2. The veterinary surgeon should have performed a clinical examination of the animal for the purpose of diagnosis or prescription, or have visited the premises in which the animal is kept sufficiently often and recently enough, to have sufficient personal knowledge to make a diagnosis and prescribe for the animal in question.
Always use antimicrobials in accordance with the guidelines given to you by your veterinary surgeon. It is important that the full course of treatment at the correct dosage is always administered. Under-dosing, or not completing a full course, can lead to treatment failure (which will be more costly in the long run) and increases the risk of resistance developing. Dairy and beef farmers have a responsibility to ensure the safety of food they produce for consumers and it is essential that the appropriate withdrawal period prior to slaughter, or for the sale of milk for human consumption, are observed. Information on the required withdrawal period can be found on the medicine labels or, alternatively, from your veterinary surgeon.
Treatment Records:
An animal medicines record book, together with copies of relevant regulations and Codes of Practice, must be kept on the farm. It is important to accurately record the identity of the treated animals and, when recording treatments, a note should also be made of the batch number, amount and expiry date of the medicine used, plus the required withdrawal period. Appropriate information should be kept on file of medicines used (e.g. product data sheets, package inserts or safety data sheets). It is a legal requirement for records to be kept for a period of five years after the treatment has ended, even if the animal has been slaughtered or sold.
Appropriate records should be kept for 5 years after administration of medicines
Medicine Storage and Disposal:
The key guidelines on medicine storage are given below, further information is available in the NADIS bulletin "Medicines: Legal requirements and Usage".
Multiuse bottles should be marked with a use by date
Empty bottles and out of date medicines must be disposed of in appropriate containers
Herd health planning:
A good farm health plan will help to promote responsible use of antimicrobials on farm by providing information on disease identification and guidance on drug choice for treatment for commonly encountered diseases. The inclusion of standard operating procedures (SOPs) for specific disease conditions helps to promote consistency of treatment choice and will enable ongoing monitoring of treatment efficacy. It is important that SOPs are agreed with the vet and followed by all staff. It is essential that any treatment failures are recorded and investigated.
For diseases such as mastitis, the collection and analysis of diagnostic samples are key parts of ensuring the appropriate use of antimicrobials. By collecting samples of the milk produced by cows suffering from mastitis,and indeed, samples of cows identified as having high somatic cell counts, it enables the identification of:
Bacteriology on milk samples allows the correct treatment to be chosen
Antimicrobials are a key part for the treatment of diseases such as pneumonia. When faced with an outbreak it is important that the correct treatment is provided: Treatment can only be a short term immediate response to disease and producers should also work with their veterinary surgeon to investigate the underlying causes that steps can be taken to prevent future disease using appropriate vaccines or management changes.
Choosing the right antimicrobial is key to treatment success
Remember prevention is better than cure, and the need for the use of antimicrobials can be reduced by good husbandry and management practices. Producers should work with their veterinary surgeon as part of their herd health planning to develop and apply disease control measures which minimise the need for antimicrobial use.
Adverse reactions
Very occasionally, animals will have an adverse reaction to a medicine administered to them. The severity of a reaction can vary immensely and can range from a lump at the site of administration to systemic signs such as laboured breathing, tissue swelling and even death. Other types of adverse reactions to look out for are suspected lack of medicine efficacy (effectiveness) or unexplained /unanticipated residue problems. Adverse reactions are unusual but if you ever have an animal show signs of an adverse reaction you should contact your veterinary surgeon. Suspected adverse reactions in animals undergoing treatment should be reported to the Veterinary Medicines directorate (VMD) and a note of the reaction should be made in your medicines book. Reporting adverse reactions will help the VMD ensure that authorised medicines continue to be safe and effective and carry the most up to date accurate information on labels and accompanying literature.
Conclusion
To protect animal health, antimicrobials should only be used when necessary and then responsibly. Responsible use of antimicrobials involves a reduction in the need for antimicrobials as well as using them correctly. Such use optimises therapeutic effects while minimising the development of resistance.
NADIS hopes that you have found the information in the bulletin useful. Now test your knowledge by enrolling and trying the quiz. You will receive an animal health certificate for this subject if you attain the required standard.
Antimicrobials (antibiotics) have made a major contribution to cattle health and welfare. They are vital medicines for the treatment of bacterial infections in cattle and other livestock. The emergence of antimicrobial resistance as a serious problem in human medicine has prompted concerns about the potential for crossover of resistant bacteria from livestock to the human population and the associated possibility of this impacting on the effectiveness of medical antimicrobial treatments.
Responsible Prescribing:
Antimicrobials are just one of the available tools for managing disease in livestock and should be used alongside good husbandry and preventative medicines such as vaccination. When antimicrobial treatments are necessary there is a joint responsibility between the veterinary surgeon and the farmer to ensure that antimicrobial drugs are used correctly and that all legal requirements are met; this begins from the time that the medication is prescribed. In the UK, antimicrobials are classified as Prescription Only Medicine - Veterinarian (POM-V). POM-Vs can only be prescribed by veterinary surgeons for administration to animals under their care. The Royal College of Veterinary Surgeons requires that a number of criteria should be met for an animal to fall into this category:
1. The veterinary surgeon should have been given responsibility for the animal's health by its owner or guardian.
2. The veterinary surgeon should have performed a clinical examination of the animal for the purpose of diagnosis or prescription, or have visited the premises in which the animal is kept sufficiently often and recently enough, to have sufficient personal knowledge to make a diagnosis and prescribe for the animal in question.
Always use antimicrobials in accordance with the guidelines given to you by your veterinary surgeon. It is important that the full course of treatment at the correct dosage is always administered. Under-dosing, or not completing a full course, can lead to treatment failure (which will be more costly in the long run) and increases the risk of resistance developing. Dairy and beef farmers have a responsibility to ensure the safety of food they produce for consumers and it is essential that the appropriate withdrawal period prior to slaughter, or for the sale of milk for human consumption, are observed. Information on the required withdrawal period can be found on the medicine labels or, alternatively, from your veterinary surgeon.
Treatment Records:
An animal medicines record book, together with copies of relevant regulations and Codes of Practice, must be kept on the farm. It is important to accurately record the identity of the treated animals and, when recording treatments, a note should also be made of the batch number, amount and expiry date of the medicine used, plus the required withdrawal period. Appropriate information should be kept on file of medicines used (e.g. product data sheets, package inserts or safety data sheets). It is a legal requirement for records to be kept for a period of five years after the treatment has ended, even if the animal has been slaughtered or sold.
Appropriate records should be kept for 5 years after administration of medicines
Medicine Storage and Disposal:
The key guidelines on medicine storage are given below, further information is available in the NADIS bulletin "Medicines: Legal requirements and Usage".
- Always store products in accordance with the manufacturer's guidelines.
- Some products will require refrigeration and must be maintained between 2°C and 8°C.
- The designated storage area should not be accessible to the public.
- Storage areas should be kept clean and should be well ventilated. Eating or drinking should be forbidden in this area.
- Dates of delivery should be recorded.
- For multi-use bottles date of first use should be marked on the product.
Multiuse bottles should be marked with a use by date
- Medicine storage facilities must be fitted with a lock.
- You should have a stock control policy to ensure correct storage.
- Minimum stocks of veterinary medicines should be kept.
- All stock should be routinely checked to ensure it is still in date.
- Out of date or unwanted medicines must be disposed of according to manufacturers' instructions or returned to the veterinary surgeon or supplier for safe disposal.
Empty bottles and out of date medicines must be disposed of in appropriate containers
Herd health planning:
A good farm health plan will help to promote responsible use of antimicrobials on farm by providing information on disease identification and guidance on drug choice for treatment for commonly encountered diseases. The inclusion of standard operating procedures (SOPs) for specific disease conditions helps to promote consistency of treatment choice and will enable ongoing monitoring of treatment efficacy. It is important that SOPs are agreed with the vet and followed by all staff. It is essential that any treatment failures are recorded and investigated.
For diseases such as mastitis, the collection and analysis of diagnostic samples are key parts of ensuring the appropriate use of antimicrobials. By collecting samples of the milk produced by cows suffering from mastitis,and indeed, samples of cows identified as having high somatic cell counts, it enables the identification of:
- Which pathogen or pathogens are to blame, in order to target effective treatment.
- Which control measures can be implemented on the farm to reduce the incidence of the disease.
Bacteriology on milk samples allows the correct treatment to be chosen
Antimicrobials are a key part for the treatment of diseases such as pneumonia. When faced with an outbreak it is important that the correct treatment is provided: Treatment can only be a short term immediate response to disease and producers should also work with their veterinary surgeon to investigate the underlying causes that steps can be taken to prevent future disease using appropriate vaccines or management changes.
Choosing the right antimicrobial is key to treatment success
Remember prevention is better than cure, and the need for the use of antimicrobials can be reduced by good husbandry and management practices. Producers should work with their veterinary surgeon as part of their herd health planning to develop and apply disease control measures which minimise the need for antimicrobial use.
Adverse reactions
Very occasionally, animals will have an adverse reaction to a medicine administered to them. The severity of a reaction can vary immensely and can range from a lump at the site of administration to systemic signs such as laboured breathing, tissue swelling and even death. Other types of adverse reactions to look out for are suspected lack of medicine efficacy (effectiveness) or unexplained /unanticipated residue problems. Adverse reactions are unusual but if you ever have an animal show signs of an adverse reaction you should contact your veterinary surgeon. Suspected adverse reactions in animals undergoing treatment should be reported to the Veterinary Medicines directorate (VMD) and a note of the reaction should be made in your medicines book. Reporting adverse reactions will help the VMD ensure that authorised medicines continue to be safe and effective and carry the most up to date accurate information on labels and accompanying literature.
Conclusion
To protect animal health, antimicrobials should only be used when necessary and then responsibly. Responsible use of antimicrobials involves a reduction in the need for antimicrobials as well as using them correctly. Such use optimises therapeutic effects while minimising the development of resistance.
NADIS hopes that you have found the information in the bulletin useful. Now test your knowledge by enrolling and trying the quiz. You will receive an animal health certificate for this subject if you attain the required standard.