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Outbreak of rickets in pigs in the west of Santa Catarina

Gris, Anderson; Peres Neto, Eduardo; Silva, Kalinka Schimitti da; Gomes, Teane Milagres Augusto; Surian, Soraya Regina Sacco; Fronza, Nei; Mendes, Ricardo Evandro.
Acta sci. vet. (Online); 48(suppl.1): Pub. 545, Nov. 5, 2020. ilus
Artigo em Inglês | VETINDEX | ID: vti-765371


Background: Rickets is a deficiency pathology that occurs in young and growing animals, leading to deficient bone mineralization. Rickets has been reported in several species producing numerous economic losses. The disease is caused by nutritional imbalance of calcium (Ca), phosphorus (P) and vitamin D. The aim of this work was to report two outbreaks of rickets in commercial weaning farms in the Seara city, in the western region of Santa Catarina State (SC), Brazil. Case: In August 2016, the Veterinary Pathology Laboratory (LPV) at the Concórdia Campus of the Catarinense Federal Institute (IFC) diagnosed two outbreaks of rickets in pigs in the weaning phase in Seara, SC. The clinical history was obtained by interviewing the field veterinarian and the farmers. In the anamnesis, both pig farmers stated having used a feed premix product from the same company, starting three months ago, and after that the pigs presented clinical signs of posterior paralysis and progressive weight loss. Six animals were submitted to necropsy and organs were collected from the abdominal and thoracic cavities; central nervous system and bones; fixed in 10% buffered formalin, routinely processed, paraffin embedded and stained with hematoxylin and eosin (HE) for histopathological analysis. Bone specimens were decalcified in nitric acid working solution 20 times their volume, during 5 days. In addition, samples of the premix product containing minerals and vitamins were sent to a specialized laboratory to analyze macroelements levels through the atomic absorption methodology. In property 1, there was a batch of 100 animals, the morbidity rate was 15% and lethality was 5%. In property 2, among 30 animals, the morbidity and lethality rate were 33%. Five animals from property 1 and one...(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1