Offering your dog at stud
From Pet Encyclopedia
So, your interested in offering your dog at stud? There are many things to be taken in to consideration before making this decision, so read on before making your mind up.
One of the most important things to consider is what impact will your dog being bred from have on the breed. It may seem allowing him just one litter will not have much effect, but multiply this by many such litters and it has a huge impact.
It is generally accepted that there are more dogs bred than there are good homes available for, and those bred irresponsibly, accidentally or casually and then not homed to really committed owners, with breeders not willing to take lifelong responsibility are more likely to end up swelling the ranks of rescue dogs, many of whom end up being put to sleep each year.
So bearing in mind the above the only reason any dog or bitch should be used for breeding is to improve and maintain the quality and typical traits of a breed, and to provide dogs needed for some working purposes. There will be plenty left over from such litters to make non working/non show pets.
You can view the kennnel clubs view on responsible breeding  and the Kennel Clubs general code of ethics  (note particularly points 6 and 7 regarding responsibilities to the breed and ongoing responsibility to puppies). All those who use KC services are expected to be bound by this code.
A Pet owner wanting a pedigree puppy will want to know that it is going to be like it's breed and be typical in looks and character traits.
They will also want and deserve to have a dog with the odds heavily stacked in favour of avoiding hereditary health issues some of which can be tested for by DNA, many other problems only have a test for the affected/non affected status of the parents, but not identify carriers, and still others can only be avoided by careful pedigree research, which requires a deep knowledge of the parents ancestors.
This following article describes what a good breeder/stud dog owner should be, and how the other kind can be identified 
Those who breed poor and unhealthy specimens and who fail to carry out health screening have been taken to court and found to be responsible for dogs developing health issues, and those who advertise a litter of pups can be prosecuted by Trading Standards for any misleading information, such as quality of the dogs, breed etc, as the Trades Descriptions Act covers dogs in the same way as it does washing machines. With buyers paying not inconsiderable sums for pups many are quick to follow the legal, route, especially the small claims court which costs them little.
 Should I offer my Dog at Stud?
Before you offer your dog at stud you will first need to identify whether or not he is actually a good candidate for this job. Dogs should be bred for one main reason, which is to improve the breed.
To do this you should compare him against the Kennel Club breed standard and others of his breed and have him independently evaluated against his peers. This is usually done by showing him, and/or where appropriate working him.
This is where reputable breeders will be looking for potential stud dogs, also advertising through breed club publications and breeder websites . They will be looking at the dogs themselves, their health status and the offspring of the proven ones to see if they will fit into their bitches bloodlines. Though many inexperienced people do look for stud dogs via on-line pet advertising websites .
Joining your breeds National breed club will also give you access to events run for the breed including Working tests and shows. Also a valuable source for research are club publications, and it is often possible to purchase back issues, which will help you research ancestors and see how bloodlines have developed.
A list of breed clubs is appended to the breed profile page of each breed in this pet encyclopedia. The Kennel club has a list of clubs on the breed standard page for each breed http://www.thekennelclub.org.uk/item/435 .
This is an article about stud dogs on the Kennel Club website .
 Will my Dogs Temperament Change?
When your dog is with a bitch that is in season you will find his natural instinct will take over. He will become less interested in you or what you have to say as his thoughts will be focused on the bitch. The scent of the bitch will take over his senses but it will not alter his temperament, though in some cases it can make him less sociable with other male dogs.
He will of course be more aware of bitches, but on the other hand most experienced stud dogs do not pester bitches that are about to or have recently come out of season, and will show only cursory interest in a bitch until she is absolutely ready for mating, usually no more than a four or five day period during her 3 week or more season.
 What Health Tests are Required?
You should check primarily with your breed club or veterinary surgeon to find out which are the common inherited health conditions for your dog breed , and find out the tests available (if any) for these conditions (though many GP Vets have little knowledge of the tests needed and available as breeding is not their area of expertise).
The Kennel Club on their website have details of many of the conditions and screening tests which can be found here . Both the sire and dam should be tested for any of these conditions. These tests can be quite expensive and not all vets are able to perform them.
You will probably find that most responsible owners of bitches will not consider your stud dogs services unless you have evidence of all the appropriate testing for your dog breed. This should also be the case for the owner of the stud dog, as you should not want to allow use of your stud dog on a bitch who has not had the appropriate tests done also.
 What Paper work is Required?
You do not need a licence to use your dog as a stud but if he is a pedigree breed he will need to be registered with the Kennel Club. You will also need to check for any endorsements on his registration papers which may prevent you from using him to breed from. In turn the same should apply to the bitch and you will need to check her paperwork before you agree to the mating.
You should also have on hand your own dogs, and examine the bitches Hip Score certificate (all breeds and non breeds can suffer Hip dysplasia so should be hip scored), eye test certificate if applicable (the list of breeds and conditions known to be inherited by them are listed here ), and any other health scheme certification appropriate for the breed (your breed club, and the kennel club can advise, some of the schemes are detailed here  )
After mating the bitch owner should pay the stud fee.
The stud owner should provide a receipt for the stud service and detail the terms of any free return should there be no pups, for example only the same bitch or another suitable bitch from the same owner. What would happen if the dog becomes unavailable or proves/becomes infertile etc.
Stud owner should sign and complete the details on the KC Form I (litter registration form) confirming the mating.
An accurate signed pedigree form for the stud should be provided, and also copies of health certificates for the stud.
 External Links
The Kennel Club: http://www.thekennelclub.org.uk/
The British Veterinary Association: http://www.bva.co.uk/public/chs/
The Aninal Health Trust research: http://www.aht.org.uk/genetics_tests.html