Fecha/hora: 09/06/2024 18:17:07

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 23/03/2018
Fecha de la última actualización: | 24/06/2021
Autoria: | SILVA, V. C.; OLIVEIRA, L. A. DE; LACERDA, M. DOS S. C.; PIMENTEL, L. A.; SANTOS, W. S.; MACÊDO, J. T. S. A. E; RIET-CORREA, F.; PEDROSO P. M. O.
Afiliación: | Setor de Patologia Veterinária, Hospital Universitário de Medicina Veterinária, Universidade Federal do Recôncavo da Bahia (UFRB), Brazil.; Embrapa Mandioca e Fruticultura, Rua Embrapa s/n, Cruz das Almas, BA 44380-000, Brazil.; Setor de Patologia Veterinária, Hospital Universitário de Medicina Veterinária, Universidade Federal do Recôncavo da Bahia (UFRB),Brasil.; Setor de Patologia Veterinária, Hospital Universitário de Medicina Veterinária, Universidade Federal do Recôncavo da Bahia (UFRB), Brasil.; Setor de Patologia Veterinária, Hospital Universitário de Medicina Veterinária, Universidade Federal do Recôncavo da Bahia (UFRB), Brasil.; Laboratório de Patologia Veterinária, Fundação Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, Via L4 Norte s/n, Brasília, DF 70910-970, Brazil.; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Laboratório de Patologia Veterinária, Fundação Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, Via L4 Norte s/n, Brasília, DF 70910-970, Brazil.
Título: | Experimental poisoning by cassava wastewater in sheep. (Intoxicação experimental por manipueira em ovinos).
Año de publicación: | 2017
Fuente/Imprenta: | Pesquisa Veterinária Brasileira, Rio de Janeiro v. 37, n. 11, p. 1241-1246, novembro. 2017.
DOI: | 10.1590/s0100-736x2017001100008
Idioma: | Inglés
Notas: | Article history: Received: November 23, 2016// Accepted: March 17, 2017.
Contenido: | Abstracts: The processing of Manihot esculenta (cassava) tubers yield different by-products, including cassava wastewater, which is the liquid pressed out of the tuber after it has been mechanically crushed. Cyanide poisoning after ingestion of cassava wastewater has been reported in ruminants and pigs in Northeastern Brazil. With the aim of studying its toxicity, cassava wastewater was administered orally to six sheep at doses of 0.99, 0.75, 0.70, 0.63, and 0.5 mg of hydrocyanic acid kg-1 body weight, which corresponded to 14.2, 10.6, 9.8, 8.89, and 7.1 mL of wastewater kg-1. On the second day, the sheep received a volume of wastewater which corresponded to 0.46, 0.34, 0.31, 0.28, and 0.23 mg of HCN kg-1. A sheep used as control received 9.9 mL of water kg-1 BW. Sheep that received from 0.75 to 0.99 mg kg-1 of HCN on the first day exhibited severe clinical signs of poisoning, and the sheep that received 0.63 and 0.5 mg kg-1 exhibited mild clinical signs. All sheep were successfully treated with sodium thiosulfate. On the second day, only the sheep that received 0.46 mg kg-1 and 0.34 mg kg-1 exhibited mild clinical signs and recovered spontaneously. The concentration of HCN in the wastewater was 71.69±2.19 ?g mL-1 immediately after production, 30.56±2.45 ?g mL-1 after 24 hours, and 24.25±1.28 ?g mL-1 after 48 hours. The picric acid paper test was strongly positive 5 minutes after production; moderately positive 24 hours after production, and negative 48 hours after production. We conclude that cassava wastewater is highly toxic to sheep if ingested immediately after production, but rapidly loses toxicity in 24-48 hours.
Palabras-Clave: | ACICO PRUSSICO; ACIDO CIANIDRICO; CASSAVA; HIDROGEN CYANIDE; MANDIOCA; NORDESTE DO BRASIL; NORTHEASTERN BRAZIL; PLATAFORMA SALUD ANIMAL; RUMINANTS; SHEEP; WASTEWATER.
Thesagro: | ENFERMEDADES DE LOS ANIMALES; OVINO; RUMIANTES.
Categoría del tema: | L73 Enfermedades de los animales
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (102324-1) - PXI - AP - DD -  -  -  - DIS