Bred out

degenerated.

See also: Bred

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
By Sterling Gino 15 and bred out of Sterling Candy's FCUK, she was on her third outing having stood reserve champion at the Royal Highland Show and reserve overall champion at the Simmental breed's national show at Border Union Show, Kelso.
RESERVE and male champion: Alan and Carolyn Munro, Tain, Ross-shire, with Carlung Valour, a three-year-old colt by Carlung Feargus and bred out of Reynelladene and brought from breeder Susan Wardrop a year ago.
The nineyear-old stallion by Kyle of Croila and bred out of Rhona of Croila, topped this same class, the not exceeding 14hh at the RHS last year and previously stood novice supreme at BSPS Scotland.