Donald Shaver search widely for diversified breeding stock. Local breeders, knowing his reputation were reluctant to sell to him for fear of competition. In 1946, there were 256 registered chicken breeders in Canada. Shaver Poultry became the 257th. By 1958, only Shaver remained, along with seven other major poultry breeders worldwide. The principle of hybrid vigour had been well established for corn, but the costs and time required to test chicken crosses were higher. Small breeders (as Shaver was at the time) could not afford permanent scientific staff, so Shaver obtained assistance from geneticists conducting research at universities and government institutions. Shaver
Mountain and moorland pony breeds when the colts and some of the fillies are removed for sale. The remaining fillies are usually branded to indicate ownership. Some geldings may also be turned out. Ponies still kept in this way include New Forest, Exmoor, Dartmoor and Welsh. Each of these breeds also has a population kept as fully domesticated animals. In horse shows mountain and moorland classes are divided into two subsections: small breeds and large breeds, although the four Welsh types are often shown in their own classes instead. They are overseen by the relevant breed society, and by the British Show Pony Society. Mountain