Breeding Ancestor Lines Discover the male lines (M, R, J, etc.) described by H.N. Beilby and trace your dog's ancestry. Read more
Breeding Ancestor Families Explore the bitch strains (families) identified by H.N. Beilby and their descendants. Read more
Breed Insights Breeding L2hga & HC L-2-HGA and Hereditary Cataract (HC) are the only two DNA-testable hereditary diseases in the Staffordshire Bull Terrier, and there is no valid… Read more
Breeding The XY Factor - Breed to Succeed The XY Factor is a breeder’s observational theory, not a genetic rule. It describes a sire who consistently stamps his type on his offspring,… Read more
Breeding X-Linked Heritage in Breeding X-Linked Heritage refers to the way the X chromosome is inherited. Males receive their only X chromosome from their mother, while females receive… Read more
Breed Insights Breeding Popular Sire Syndrome Popular sire syndrome occurs when one widely used male dominates a breed’s gene pool, reducing genetic diversity and making future breeding… Read more
