

O
Obedience Trial
Obesity
Oblique Shoulders
Obliquely Placed Eyes
Occipital Protuberance: see Occiput
Occiput
Odd-Eyed
Old English Sheepdog
Omnivore
On-Dog Identification
Open A/B
Open Fontanel
Open Junior
Open Senior
Ophthalmic
Orange Belton: see Belton
Orthopedic Foundation for Animals (OFA)
Osteochondrosis Dissecans (OCD)
Osteosarcoma
Otter Tail
Otterhound
Out At The Elbows
Out At The Shoulders
Outcrossing
Oval Chest
Oval Eye
Ovaries
Overage Dam
Overage Sire
Overhang
Overreaching
Overshot
Ovulate

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