Related Clues:

• See 53-Down
• Gives rise to
• Kennel club categories
• Runs a stud farm, say
• Kennel collection
• Generates
• Engenders
• Siamese et al.
• Multiplies
• Shar-Pei and Shih Tzu, e.g.
• Livestock lineages
• Produces offspring
• Several are in this puzzle
• See 8 Down
• Holstein and Hereford