Inbreeding on litter size of German Spitz dogs
Rev. bras. zootec
; 50: e20200083, 2021. tab, graf
Article
em En
| VETINDEX
| ID: biblio-1443238
Biblioteca responsável:
BR68.1
ABSTRACT
The objective of the present study was to assess the association between the inbreeding coefficient (F) of German Spitz dogs (litter, sires, and dams) and number of live newborn dogs for this breed. Records of dams and sires of a breeding system were used to calculate the F of 105 litters and their sires and dams and the number of live newborn dogs. The analysis performed through the GLM procedure showed a negative influence of F of litter and mother on litter size. This influence was investigated through models that considered linear and quadratic influences. Although the model that considered quadratic effect of F of the litter achieved the best adjustment, only linear coefficients were significant in both analyses. According to these results, the studied sample of German Spitz dogs exhibits inbreeding depression for litter size, which is an important information for breeders and professionals that assist in dog breeding. In addition to all the known effects of inbreeding on canine health, the results indicate that monitoring inbreeding through F is important for the reproductive success of the breed.
Assuntos
Palavras-chave
Texto completo:
1
Base de dados:
VETINDEX
Assunto principal:
Animais Endogâmicos
/
Fatores Raciais
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Endogamia
/
Tamanho da Ninhada de Vivíparos
Limite:
Animals
Idioma:
En
Revista:
Rev. bras. zootec
Ano de publicação:
2021
Tipo de documento:
Article