Fecha/hora: 16/06/2024 04:55:00

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 23/03/2018
Fecha de la última actualización: | 09/10/2019
Autoria: | OLINDA, R. G.; MAIA, L. A.; FRADE, M. T. S.; SOARES, M. P.; BARROS, S. S.; DRIEMEIER, D.; RIET-CORREA, F.; DANTAS, A. F. M.
Afiliación: | Programa de Pós-graduação em Medicina Veterinária, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande (UFCG); Programa de Pós-graduação em Medicina Veterinária, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande (UFCG); Programa de Pós-graduação em Medicina Veterinária, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande (UFCG); Laboratório Regional de Diagnóstico, Faculdade de Veterinária (FV), Universidade Federal de Pelotas (UFPel); Laboratório Regional de Diagnóstico, Faculdade de Veterinária (FV), Universidade Federal de Pelotas (UFPel); Departamento de Patologia Clínica Veterinária, Faculdade de Veteriná- ria, Universidade Federal do Rio Grande do Sul (UFRGS),; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Programa de Pós-graduação em Medicina Veterinária, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande (UFCG); Programa de Pós-graduação em Medicina Veterinária, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande (UFCG).
Título: | Degenerative axonopathy associated with copper deficiency in pigs. (Axonopatia degenerativa associada com deficiência de cobre em suínos).
Año de publicación: | 2017
Fuente/Imprenta: | Pesquisa Veterinária Brasileira, Rio de Janeiro v. 37, n. 9, p. 911-915, setembro. 2017.
DOI: | 10.1590/S0100-736X2017000900002
Idioma: | Inglés
Notas: | Article history: 1 Received on May 29, 2016 // Accepted for publication on November 11, 2016.
Contenido: | Abstract: The epidemiological, clinic and morphological (pathological and ultrastructural) aspects of four outbreaks of copper deficiency affecting 21- to 90-day-old pigs in the Northeast region of Brazil are reported. Clinical signs began with paraparesis and ataxia and progressed to flaccid or spastic paralysis of the pelvic and thoracic limbs, followed by sternal and/or lateral recumbence. In addition, some animals showed dog-sitting position and intention tremors. The clinical manifestation period was 5-20 days. Significant gross lesions were not observed; however, microscopically, symmetrical degeneration of the white matter with ballooned myelin sheaths containing occasional macrophages was observed, mainly in the spinal cord. Two pigs presented with necrosis ad loss of Purkinje cells and ectopic Purkinje cells in the granular layer and cerebellar white matter. A ultrastructural analysis showed different degrees of damage of myelinated axons in the spinal segments, including an absence of the axoplasm structures with only axonal residues remaining. The myelin sheaths were degenerated and often collapsed into the space previously occupied by the axon. These results suggest that myelin degeneration is secondary to the axonal lesion. Finally, the concentration of copper in the liver was determined using atomic absorption spectrophotometry and was found to be low (ranging from 2.2 to 10.8 ppm). In conclusion, in the Brazilian semiarid region, Cu deficiency occurs in 21 to 90-day-old pigs that ingested different types of waste in their food.
Palabras-Clave: | Axonal degeneration; COPPER DEFICIENCY; DEFICIENCIA DE COBRE; Degeneração axonal; Degeneração da mielina; Degenerative myelopathy; Mielopatia; MINERAL DEFICIENCY; Myelin degeneration; PLATAFORMA SALUD ANIMAL; SWINE.
Thesagro: | DEFICIENCIAS DE MINERALES; ENFERMEDADES DE LOS ANIMALES; SUINOS.
Categoría del tema: | E16 Enfermedades de los animales
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/8985/1/Pesq.-Vet.-Bras.-379-911-915-setembro-2017-Olinda.pdf
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (102326-1) - PXI - AP - DD -  -  -  - DIS