Abstract This study evaluated the resistance status of Haemonchus contortus from sheep flocks in the state of São Paulo, Brazil, through comparison between the fecal egg count reduction test (FECRT) and the larval development test (LDT). For the FECRT, 35 sheep were selected in each of five flocks and d...
Antihelmínticos/farmacología,
Antihelmínticos/uso terapéutico,
Brasil,
Resistencia a Medicamentos,
Heces,
Hemoncosis/diagnóstico,
Hemoncosis/tratamiento farmacológico,
Hemoncosis/veterinaria,
Haemonchus,
Ivermectina/uso terapéutico,
Recuento de Huevos de Parásitos/veterinaria,
Ovinos,
Enfermedades de las Ovejas/diagnóstico,
Enfermedades de las Ovejas/tratamiento farmacológico
Abstract The effect of four diets on the performance of Dorper lambs that were artificially mix-infected with 1000 infective larvae (L3) of Haemonchus contortus and 1000 L3 of Trichostrongylus colubriformis every three days for 12 weeks was evaluated. For each diet, one infected group (n = 7) and one con...
Abstract The aim of this study was to characterize the anthelmintic resistance (AR) of a sheep gastrointestinal nematode population, named Caucaia, from northeastern Brazil. Phenotypic tests performed were: egg hatch (EHT), larval development (LDT) and fecal egg count reduction (FECRT). Benzimidazoles (B...
Antihelmínticos/farmacología,
Antihelmínticos/uso terapéutico,
Brasil,
Resistencia a Medicamentos/genética,
Heces,
Haemonchus,
Nematodos,
Recuento de Huevos de Parásitos/veterinaria,
Ovinos,
Enfermedades de las Ovejas/diagnóstico,
Enfermedades de las Ovejas/tratamiento farmacológico
Abstract The macroscopic, histological, and molecular aspects of Sarcocystis spp. were examined in the tissues of two cattle and four sheep, 16 and eight fragments analyzed respectively, condemned in the slaughterhouse. All 24 samples were collected and analyzed for detecting macrocysts and macroscopic l...
Abstract The effectiveness of four anthelmintic classes on cattle gastrointestinal nematodes in the semi-arid region of Paraiba State, Brazil, was evaluated. Twenty farms were used, testing 40 animals in each one, totaling 800 animals. Cattle were divided into four groups composed with ten animals: I, tr...
Antihelmínticos/farmacología,
Brasil,
Bovinos,
Resistencia a Medicamentos,
Heces,
Haemonchus,
Ivermectina/uso terapéutico,
Nematodos,
Recuento de Huevos de Parásitos/veterinaria,
Ovinos,
Enfermedades de las Ovejas/tratamiento farmacológico
Feitosa, Thais Ferreira;
Costa, Flávia Teresa Ribeiro;
Bezerra, Roberto Alves;
Álvares, Felipe Boniedj Ventura;
Ferreira, Larissa Claudino;
Mota, Rinaldo Aparecido;
Gennari, Solange Maria;
Pena, Hilda Fátima Jesus;
Azevedo, Sérgio Santos de;
Vilela, Vinícius Longo Ribeiro.
Abstract Aimed with this study to evaluate vertical transmission of Neospora caninum in naturally infected sheep and to monitor the kinetics of antibodies against this protozoon in their lambs. Therefore, 48 pregnant ewes, from five herds, were divided into two groups: G1 - positive for anti-N. caninum a...
Antihelmínticos/farmacología,
Nanocápsulas/administración & dosificación,
Monoterpenos/farmacología,
Enfermedades de las Ovejas/parasitología,
Infecciones por Nematodos/veterinaria,
Tracto Gastrointestinal/parasitología,
Ovinos/parasitología,
Antihelmínticos/toxicidad,
Nanocápsulas/toxicidad,
Monoterpenos/toxicidad,
Ratas Wistar/sangre,
Ratones,
Resistencia a Medicamentos/efectos de los fármacos,
Haemonchus/aislamiento & purificación,
Haemonchus/efectos de los fármacos,
Bencimidazoles/farmacología,
Levamisol/farmacología,
Reacción en Cadena en Tiempo Real de la Polimerasa,
Antihelmínticos/uso terapéutico,
Nanocápsulas/uso terapéutico,
Monoterpenos/uso terapéutico,
Enfermedades de las Ovejas/tratamiento farmacológico,
Infecciones por Nematodos/tratamiento farmacológico,
Helmintiasis Animal/tratamiento farmacológico,
Hemoncosis/tratamiento farmacológico,
Recuento de Huevos de Parásitos,
Pruebas de Sensibilidad Parasitaria,
Pruebas de Toxicidad
Abstract The objective of this study was to provide the first report of resistance of Haemonchus contortus to monepantel in sheep in Espírito Santo. The study was conducted in a property with history of monepantel use since 2014 and register of low efficacy in studies conducted over the past few years w...
Aminoacetonitrilo/análogos & derivados,
Antihelmínticos/farmacología,
Antihelmínticos/uso terapéutico,
Brasil,
Resistencia a Medicamentos,
Heces,
Hemoncosis/tratamiento farmacológico,
Hemoncosis/veterinaria,
Haemonchus,
Recuento de Huevos de Parásitos/veterinaria,
Ovinos,
Enfermedades de las Ovejas/tratamiento farmacológico
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...
Mongruel, Anna Claudia Baumel;
Spanhol, Viviane Campos;
Valente, Jessica Damiana Marinho;
Porto, Petrônio Pinheiro;
Ogawa, Liza;
Otomura, Flávio Haragushiku;
Marquez, Ellen de Souza;
André, Marcos Rogério;
Vieira, Thállitha Samih Wischral Jayme;
Vieira, Rafael Felipe da Costa.
Abstract Although anemia has been historically linked to Haemonchus contortus infection, other infectious agents, such as hemotropic mycoplasmas and tick-borne disease pathogens, may also lead to anemic crisis in sheep. This study has aimed to investigate infections related to anemia in a sheep herd from...
Anemia/complicaciones,
Anemia/parasitología,
Anemia/veterinaria,
Brasil,
Mycoplasma/genética,
Mycoplasma/aislamiento & purificación,
Nematodos/aislamiento & purificación,
Parásitos/clasificación,
Parásitos/aislamiento & purificación,
Enfermedades Parasitarias en Animales/complicaciones,
Enfermedades Parasitarias en Animales/microbiología,
Enfermedades Parasitarias en Animales/parasitología,
Filogenia,
ARN Ribosómico 16S/genética,
Ovinos,
Enfermedades de las Ovejas/microbiología,
Enfermedades de las Ovejas/parasitología,
Encuestas y Cuestionarios
