One was effective and readily available from commercial breeders.

In 1992, Foxfield ended its racing operation and became a commercial breeder.

Depending on circumstances it may be more effective to either purchase animals from a commercial breeder or to breed one's own animals.

He got commercial breeders to experiment with altering the appearance of their stock and recording the subject's sexual prowess.

Others reached the end of their productivity as commercial breeders.

A factor is the failure to regulate commercial breeders (so-called puppy mills) and their retailers.

But he said they all belonged to commercial breeders who sell the animals to laboratories and other users.

And since the target date for developing commercial breeders had already been postponed until 2030, a delay of a few years now will not be that serious.

She began a project to foster collaborative breeding among public centers, commercial breeders and drug companies.

The point about commercial breeders has been an issue that has led some women individually to come out against surrogate motherhood.