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Orientador(es)
Resumo(s)
Neonatal mortality in puppies is highly variable, with large scale surveys still reporting
average values around 10% –15%. Weight measurement is the simplest way to
monitor the development of the puppies, and a weight loss during the first 48 hr has
been recognized as one of the factors that puts puppies at a higher risk of neonatal
mortality. However, little is known about what constitutes optimum growth up to
3 weeks. In this study, a mathematical formula with the form P = P0 exp (0.13084
x - 0.001616 x2), where P is weight on Day x and P0 is weight on Day 0, obtained by
multiple linear regression, is presented and validated with data from 345 puppies
belonging to 60 litters of 19 different breeds, from toy to giant size, showing that it
appropriately describes maximum puppy growth rate during the neonatal period for
all breeds. This formula is in agreement with previous studies and generic recommendations
that can be found in the literature on puppy growth from birth to 21 days regarding
relative daily weight gain. It can be easily introduced in a spreadsheet or used
to build growth charts that can help the breeder or the veterinarian in monitoring and
evaluating puppy growth during the neonatal period. Although deviations from the
maximum growth rate can now be quantified, there is still a need to determine the
limits beyond which supplementary feeding is advised/required
Descrição
Original Article
Palavras-chave
growth chart growth rate neonatal period
Contexto Educativo
Citação
Vet Med Sci. 2020;00:1–12
Editora
John Wiley and Sons
