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
Swedish Red-and-White Swedish Red-and-White The Swedish Red-and-White, , frequently abbreviated to SRB, is a Swedish breed of dairy cattle. It was created in the 1920s by fusion of the Swedish Red Pied and Swedish Ayrshire breeds. The Swedish Red-and-White breed was formed in 1927 or 1928 by merging the populations of the Swedish Red Pied (, often abbreviated to RSB) and Swedish Ayrshire breeds. The traditional Herrgård, Skåne and Småland breeds had already been merged into the Swedish Red Pied at some time between 1892 and 1928. All four of these constituent breeds are now reported to DAD-IS as extinct. The Swedish