Tag Archives: Papillon

The Retina and Optic Nerve

Tapetal coloration of the fundus of the puppy and kitten is usually gray or blue at 6 to 8 weeks of age, gradually acquiring its adult coloration by 4 to 7 months of age when the tapetum matures. Myelination of the optic disc may also be incomplete in the puppy and kitten, giving the impression of a small, well-defined nerve head that takes on a more fluffy appearance as adult myelination occurs.Both congenital and acquired disorders of the retina and optic nerve are recognized in the young dog and cat. These may be inherited, as with collie eye anomaly, or secondary to postnatal influences, as occurs with canine distemper-induced retinitis. Congenital abnormalities can be diagnosed as early as 6 weeks of age, when the posterior segment is clearly observed. The more common congenital abnormalities of the canine fundus are summarized in Table Congenital Abnormalities of the Canine Fundus. Acquired abnormalities develop with advancing age and in this discussion are limited to those in dogs and cats younger than 6 months of age. Table Congenital Abnormalities of the Canine Fundus (diagnosed as early as 6-8 wk of age). DISORDER BREED CHARACTERISTIC FEATURES Collie eye anomaly Collie, Shetland sheepdog, Read more […]

The faults and defects of the breeds: Toy Dogs

Affenpinschers Patella luxation, either medial or lateral; Legg-Calves Perthes disease Brussels Griffon Shoulder dislocation Cavalier King Charles Spaniels Patella luxation; Episodic weakness and collapse, a rare, inherited disorder Chihuahuas (Long and Smooth coats) Shoulders dislocation; Patella luxation, medial or lateral; Hypoplasia of dens, which produces atlantoaxial subluxation, causing neck pain and quadriplegia Chinese Cresteds Medial patella luation; Legg-Calves Perthes disease English Toy Spaniels (Blenheim/Prince Charles and King Charles/Ruby) Patella luxation, medial or lateral can occur with medial the most common, Congenital Femoral Shift Italian Greyhounds Predisposed to forelimb fractures Japanese Chin Dwarfism Maltese Patella luxatin Miniature Pinschers Shoulders dislocation; Legg-Calves Perthes disease; Epiphyseal dysplasia; Decreased long-bone growth; OIsteopenia Papillons Patella luxation Perkingese Hypoplaisa of dense (Odontoid Process, an atlantoaxial subluxation, causes neck pain and quadriplegia); IVD (intervertebrate disk disease); Swimmers syndrome; Atypical pannus; Legg-Calves Perthes disease Pomeranians Patella luxation, either medial or lateral; Dwarfism; Read more […]

Anatomy Of The Dog: What is a Breed

A few months ago, the United Kennel Club added nine breeds, to its registry, bringing its total to 160. Last month, the American Kennel Club announced the addition of the American Kennel Club announced the addition of the American Eskimo to its miscellaneous group, the first step towards official recognition as an AKC breed. The new UKC breeds are Petit Basset Griffon Vendeen, Canaan Dog, English Toy Spaniel, Finnish Spitz, Greater Swiss Mountain Dog, Manchester Terrier, Polish Owczarek Nizinny, Tibetan Spaniel and Shiba, all but the Nizziny are recognized by the AKC, some of them for many years, and AKC’s newest, the American Eskimo, has been a UKC breed for a long time. Both registries seem to be in race to add new breeds to their lists, a race that some critics say is an effort to increase the treasuries of both organizations. This rush, along with the apparent whimsical assignment of breed status in some cases, an increase in breed-specific laws in the last few years, and the call by animal rights advocates for a ban on breeding pure bred dogs, has caused some to wonder about the definition of breed. So what is a breed? Webster’s Desk Dictionary of the English Language defines a breed as “a homogeneous grouping Read more […]