Examples of renal dysplasia in young dogs from the scientific literature creating
a bias toward RD being a juvenile disorder.

BREED
REFERENCE
NOTES - cause of death-Kidney failure
Shih Tzu and Lhasa apso

O'brien, T. D. "Clinicopathologic manifestations of progressive renal disease in Lhasa Apso and Shin Tzu dogs." J Am Vet Med Assoc 183 (1982): 658-664.
21 affected Lhasa apso studied - 16 less than 18 months old - none were over the age of 5
12 Shih tzu studied - 11 were less than 12 months old -none over the age of 3
Standard poodle
 DiBartola SP, Chew DJ, Boyce JT. (1983). Juvenile renal disease in related Standard Poodles.J Am Vet Med Assoc. 183(6):693-6.
listed affected indivduals as 6 young Standard poodles from 2 related litters
Rhodesian ridgeback
Lobetti, R. G., J. Pearson, and M. Jimenez. "Renal dysplasia in a Rhodesian ridgeback dog." Journal of small animal practice 37.11 (1996): 552-555.
6 month old puppy studied
Dutch kooiker Schulze, C., et al. "Renal dysplasia in three young adult Dutch kooiker dogs." Veterinary quarterly 20.4 (1998): 146-148.

male 9 months old, male 15 months old,female 21 months old
Beagle
Bruder, Marc C., et al. "Renal dysplasia in Beagle dogs: four cases." Toxicologic pathology 38.7 (2010): 1051-1057.

Cases: 9,11and 13  month old puppies, one 5 year old dog
Golden Retrievers
Kerlin, R. L., and T. J. Van Winkle. "Renal dysplasia in golden retrievers." Veterinary Pathology 32.3 (1995): 327-329.

Age range : 3-24 months
Boxer
Brum, K. B., et al. "Renal dysplasia in a Boxer dog: case report." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 60 (2008): 1084-1088.

20 month old puppy
Boxer and Finnish harriers
Hoppe, A., and E. Karlstam. "Renal dysplasia in boxers and Finnish harriers." Journal of Small Animal Practice 41.9 (2000): 422-426.

puppies from two litters- 4 with renal dysplasia- 6 normal
Bull mastiff
Abraham, L. A., C. Beck, and R. F. Slocombe. "Renal dysplasia and urinary tract infection in a Bull Mastiff puppy." Australian veterinary journal 81.6 (2003): 336-339.

15 week old puppies
Bernese mountain dog
Olenick, Christa L. "Congenital renal dysplasia and psychogenic polydipsia in a Bernese mountain dog." The Canadian Veterinary Journal 40.6 (1999): 425.
5 month old female
Miniature schnauzer Morton, L. D., et al. "Juvenile renal disease in miniature schnauzer dogs." Veterinary pathology 27.6 (1990): 455-458.

8 dogs studied -4.5-36 months old
Brie sheepdog
Font, A., et al. "Renal dysplasia in a Brie sheepdog." Journal of Small Animal Practice 32.12 (1991): 640-642.

5 months old female
Maltese
Cruz, Thais Nascimento de Andrade Oliveira, et al. "Renal dysplasia in a maltese dog." Acta Scientiae Veterinariae 47 (2019).

1 year old
Alaskan Malamute
Vilafranca, M., and L. Ferrer. "Juvenile nephropathy in Alaskan Malamute littermates." Veterinary Pathology 31.3 (1994): 375-377.

4 to 11 month old littermates - 2 males, one female affected - one clinically normal
Soft-Coated Wheaten Terriers
WISE, LORI A. "Renal dysplasia in Soft-Coated Wheaten Terriers."


18 puppies from two litters -7 had RD died from ages 1-15 months and one at 2.5 years
Miniature Poodle
Cho, Jae-Hee, et al. "Clinical and histopathological findings of renal dysplasia in a Miniature Poodle dog." Pak. Vet. J 35 (2015): 394-396

18 month old female
Newfoundland
Booth, K. "A case of juvenile nephropathy in a Newfoundland dog." Veterinary Record 127.24 (1990): 596-597.

2 year old female -littermate died of kidney failure at 11 months old
Weimaraner Roels, Stefan, S. Schoofs, and Richard Ducatelle. "Juvenile nephropathy in a Weimaraner dog." Journal of small animal practice 38.3 (1997): 115-118.
2 year old female studied