Revision as of 13:44, 11 December 2008

Welcome to WikiVet,

A collaborative initiative between the UK Vetschools to develop a comprehensive on-line veterinary knowledge base.

5,936 articles.

Content

WikiPath

Covers the undergraduate veterinary pathology curriculum.

WikiBugs

Information about veterinary bacteriology, virology and parasitology.

Wiki Anatomy and Physiology

Information about veterinary anatomy, histology and physiology.

WikiBlood

Information about the components of blood and associated immunological diseases.

WikiClinical

Clinical information.

WikiVPH

Information about Veterinary Public Health.

WikiDrugs

Information about Pharmacology and Therapeutics.

Other resources

WikiWords

A working glossary for Wiki editors.

Feedback

An area for any comments on the content or design of the site.

e-learning Resources

Access to a range of on-line courses, videos and images.

Veterinary Education

For veterinary educators to collaborate and share expertise.

About WikiVet

More about who is involved in the WikiVet project.

WikiMap

Please try using our interactive map to find other users and add your own location.

WikiNews

28th November 2008 - WikiVet receives funding from the British Society of Toxicological Pathologists [BSTP]

The BSTP has just agreed to provide sponsorship to support the WikiVet project in 2009. This funding will be used to cover wiki server hosting costs at the University of London Computer Centre.

23rd October 2008 - WikiDrugs Ready for Population

All the WikiClinical stub pages are now in place. Please feel free to start populating these pages with lots of clinical knowledge. If you are having trouble editing pages please refer back to our help pages.

9th October 2008 - The Wiki is Launched

Attendees of the WikiVet Launch

The WikiVet project was officially launched at MEDEV, Newcastle University. People from varying aspects of the Veterinary, Educational, Pharmaceutical and Medical professions attended the conference. Five people also attended the virtual conference, which made for an exciting yet interactive session. We feel that the launch was a great success and look forward to watching WikiVet grow.

Article of the Week - Chemical Hazards

Chemical contamination of foodstuffs can be due to their presence in the environment, or their intentional or unintentional application somewhere along the food chain. Some chemical toxins may occur naturally. Controlling chemicals which are only unintentionally present in the food chain is obviously difficult. Foodborne Chemical Hazards may be from the following categories:

Drug Residues

This category consists of:

Veterinary Medicines.
Veterinary Medicines, after being administered to an animal, will still be present in the animal's tissues (or food products) for a variable ammount of time depending on the drug & the species amongst other things. Drugs given to treat animals intended for food production, if licienced, will have a minimum withdrawal period which must be observed before the animal can go for slaughter (for meat withdrawal). Withdrawal periods also exist for other animal products, e.g. egg withdrawal, milk withdrawal, etc...This is to allow enough time for the drug to be excreted or metabolised sufficiently so that no drug or only insignificant ammounts will be present in any food derived from that animal.
If a Veterinary Medicine is not Licienced for use in a particular species for treating a particular condition then (having observed the Cascade System) the standard withdrawal period of 7 days for meat & 28 days for milk should be observed. Some drugs are specifically prohibited from use in all food animals (e.g. Phenylbutazone, Lignocaine to name two) and some drugs are prohibited in specific types of food producing animal (e.g. Tilmicosin is prohibited in Dairy cows but not beef cows).
Veterianry Medicines whose use are widespread in food producing animals are Antimicrobial & Antiparasitic drugs. Residues of ranquilizers are also of concern.
Organic producers ofen have to observe much longer withdrawal periods and can only administer drugs when the use has been specifically approved by a vet. Use of drugs other than to treat sick animals is generally not approved (although welfare should not be compromised).

Click here to read more

This project is funded by JISC and the Higher Education Academy.

Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution 3.0 License

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-<h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">Article of the Week - [[Rumination - Anatomy & Physiology|Rumination]]</h2>
+<h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">Article of the Week - [[Chemical Hazards]]</h2>
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-[[Image:Diagram of ruminating contractions.jpg|thumb|right|150px|Diagram of ruminating contractions - Copyright RVC 2008]]
+Chemical contamination of foodstuffs can be due to their presence in the environment, or their intentional or unintentional application somewhere along the food chain. Some chemical toxins may occur naturally. Controlling chemicals which are only unintentionally present in the food chain is obviously difficult.
-Rumination is the process of digestion in the ruminant. It involves three simplified processes. the first is regurgitation which increases the surface area of food particles for digestion through further mechanical breakdown. The second is re-[[Mastication|mastication]] and the third reinsalivation. Reinsalivation increases the volume of saliva produced whilst chewing and allows minerals to be recycled.
+Foodborne Chemical Hazards may be from the following categories:
-==Process==
+=Drug Residues=
-*Reflex initiated by mechanical stimlation of the receptors in the mucosa of the [[The Reticulum - Anatomy & Physiology|reticulum]], ruminoreticular fold and cardiac area of the [[The Rumen - Anatomy & Physiology|rumen]]
+This category consists of:
-*Frequency of contractions depends on the animal's activity
-*E.g. Cattle fed on hay or straw have the most frequent contractions at 79-100 per hour during feeding, 55-76 per hour during rumination
-*E.g. Cattle that are resting (not feeding or ruminating) only have contractions 47-80 per hour
-*Discrete reticular contraction preceedes biphasic ruminal contraction (see [[The Rumen - Anatomy & Physiology#Ruminoreticular contraction|ruminoreticular contractions]])
+# '''Veterinary Medicines.'''<br>Veterinary Medicines, after being administered to an animal, will still be present in the animal's tissues (or food products) for a variable ammount of time depending on the drug & the species amongst other things. Drugs given to treat animals intended for food production, if licienced, will have a minimum withdrawal period which must be observed before the animal can go for slaughter (for meat withdrawal).  Withdrawal periods also exist for other animal products, e.g. egg withdrawal, milk withdrawal, etc...This is to allow enough time for the drug to be excreted or metabolised sufficiently so that no drug or only insignificant ammounts will be present in any food derived from that animal.<br> If a Veterinary Medicine is not Licienced for use in a particular species for treating a particular condition then (having observed the [[Cascade System]]) the standard withdrawal period of 7 days for meat & 28 days for milk should be observed. Some drugs are specifically prohibited from use in all food animals (e.g. Phenylbutazone, Lignocaine to name two) and some drugs are prohibited in specific types of food producing animal (e.g. Tilmicosin is prohibited in Dairy cows but not beef cows).<br>Veterianry Medicines whose use are widespread in food producing animals are Antimicrobial & Antiparasitic drugs. Residues of ranquilizers are also of concern.<br>Organic producers ofen have to observe much longer withdrawal periods and can only administer drugs when the use has been specifically approved by a vet. Use of drugs other than to treat sick animals is generally not approved (although welfare should not be compromised).<br><br>
-*Rumination depends upon the coordination of the stomach movements with the thoracic wall and throat
-*Associated with inspiration against a closed glottis creating a negative pressure in the thorax allowing ingesta to be drawn into the [[Oesophagus - Anatomy & Physiology|oesophagus]]
+[[Chemical Hazards|Click here to read more]]
-*Ingesta carried orally via an antiperistaltic wave
-*Controlled by rumination centres in the hypothalamus
-*Fibre increases stomach motility
-*Increase in [[Volatile Fatty Acids - Anatomy & Physioogy|volatile fatty acids]] decrease stomach motility
-[[Rumination - Anatomy & Physiology|Click here to read more]]
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Difference between revisions of "Veterinary Education Online"