Results: 149

Pathological features of cloned calves that died in the neonatal period

Pesqui. vet. bras; 40 (11), 2020
Somatic-cell nuclear transfer is a cloning technique that enables the creation of a viable embryo from a donor adult to produce a genetically identical individual. This technique opens numerous potential possibilities for medicine and animal reproduction. However, several reports have documented cloning-...

Cobalt deficiency in cattle and its impact on production

Pesqui. vet. bras; 40 (11), 2020
Two outbreaks of cobalt deficiency in beef cattle were diagnosed in Midwestern Brazil. We discuss the clinical, epidemiological, pathological features, therapeutic measures, and impact aspects of the production system associated with these outbreaks occurring outbreaks in two farms of extensive cattle ra...

Chronic copper poisoning in beef cattle in the state of Mato Grosso, Brazil

Pesqui. vet. bras; 40 (9), 2020
Copper is an essential micromineral in animal feed; however, when consumed in excess, it can cause liver necrosis, hemolytic crisis, hemoglobinuric nephrosis and death in cattle. Although uncommon in this species, copper poisoning occurs as a result of exacerbated supplementation, deficiency of antagonis...

Primer aislamiento de Leptospira borgpetersenii serovar Hardjo tipo Hardjo Bovis a partir de un caso clínico en Argentina

Rev. argent. microbiol; 52 (3), 2020
Resumen Se describe el primer aislamiento y la tipificación molecular de Leptospira borgpetersenii serovar Hardjo Bovis en Argentina, obtenido a partir de orina de vacas abortadas de unrodeo de cría ubicado en Saladillo, provincia de Buenos Aires. Los abortos coincidieron con unperíodo de importantes ...

Causes of death in feedlot beef cattle and their control: a brief review

Pesqui. vet. bras; 40 (8), 2020
This review reports the leading causes of death in feedlot beef cattle. It describes economic losses resulting from these deaths and suggests control alternatives. Diseases associated with the respiratory and digestive systems were the most frequently observed. In different geographical areas, the import...

Adverse effects of foot-and-mouth disease vaccine in dairy cattle

Pesqui. vet. bras; 40 (8), 2020
Foot-and-mouth disease represents an important barrier to the international commerce of animal products, potentially associated with significant economic losses. The systematic vaccination of bovines and buffaloes was fundamental for the eradication of this disease; however, the use of vaccines can lead ...

Epidemiological aspects of natural poisoning by Prosopis juliflora in ruminants in semiarid areas of the state of Bahia, Brazil, invaded by the plant

Pesqui. vet. bras; 40 (7), 2020
Poisoning by Prosopis juliflora (mesquite) leads to neurological signs, cachexia and death, mainly in cattle and goats. Although the uncontrolled spread of mesquite in the Caatinga biome (biological invasion), which alters the epidemiological conditions of intoxication by this plant, has been proved for ...

DNA extraction methods for molecular detection of Eimeria spp. in cattle and sheep

Pesqui. vet. bras; 40 (7), 2020
Molecular detection of Eimeria species in fecal samples can be useful for experimental and diagnostic purposes. However, the parasite quantity presence in feces and the oocyst wall are an obstacle in DNA extraction protocols. Therefore, adequate sampling and effective disruption of the oocysts are essent...

Primary hepatic neoplasms in cattle

Pesqui. vet. bras; 40 (6), 2020
Primary hepatic neoplasms are mostly detected in cattle as incidental findings in slaughterhouses or diagnosed at the necropsy, wherein it may be related to the cause of death. A proper characterization of primary hepatic neoplasms is essential to provide an accurate diagnosis, especially at the slaughte...

Gastric disorders of cattle in western Rio Grande do Sul State, Brazil

Pesqui. vet. bras; 40 (6), 2020
A retrospective study of gastric disorders in autopsied cattle in the Western region of Rio Grande do Sul State, was performed. The exam reports of bovine necropsy of the Veterinary Pathology Laboratory, Unipampa, were analyzed in the period from 2010 to 2018. All cases in which death was primarily cause...