Navegando por Assunto "Cavalos"

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Acesso aberto (Open Access)
Fatal bothropic snakebite in a horse: a case report
(2011) SILVA, Natália da Silva e; SILVEIRA, José Alcides Sarmento da; ALBERNAZ, Tatiane Teles; CAMPOS, Karinny Ferreira; OLIVEIRA, Carlos Magno Chaves; FREITAS, Nayra Fernanda de Queiroz Ramos; BOMJARDIM, Henrique dos Anjos; BARBOSA NETO, José Diomedes
The present study reports a snakebite in a horse in the state of Pará, Brazil. At initial evaluation the animal was reluctant to walk and had tachycardia, tachypnea, severe lameness, bleeding on the pastern and swelling around the left hind leg. Blood samples from the bleeding sites, took on the first day, showed leukocytosis and neutrophilia, whereas biochemical values of urea and creatinine were significantly increased. The chosen treatment was snake antivenom, fluid therapy, antibiotics, anti-inflammatory agents and diuretic drugs. On the fourth day of therapy, the hematological values were within normal parameters. There was improvement related to the clinical lameness and swelling of the limb. However, a decrease in water intake and oliguria were observed. On the seventh day the animal died. Necropsy revealed areas of hemorrhagic edema in the left hind limb and ventral abdomen; the kidneys presented equimosis in the capsule, and when cut they were wet. Moreover, the cortex was pale, slightly yellow and the medullary striae had the same aspect. Based on these data, we concluded that the snakebite in the present study was caused by Bothrops spp. and that renal failure contributed to death.
Acesso aberto (Open Access)
Lesões traumáticas na pele causadas pelos espinhos de Mimosa pudica e Mimosa debilis em equídeos
(Universidade Federal do Pará, 2012-02-24) REIS, Alessandra dos Santos Belo; BARBOSA NETO, José Diomedes; http://lattes.cnpq.br/1516707357889557
We studied traumatic injury of the skin in horses caused by traumatic plants, popularly known as "sleep-mary", "Poppy", "scraper", "malice" and "do not touch me". The study was conducted on a farm in the district of Castanhal, northeastern of the state of Para, where there were technical visits, epidemiological study, blood samples, biopsies of affected skin and collection of plants. The study included 25 horses, 14 males and 11 females, aged between six months and eight years. The pasture consisted of Brachiaria humidicola and was heavily invaded by traumatizing plants. The animals showed ulcerative lesions of irregular borders, on the head (nose, muzzle, upper and lower lips and chamfer), oral cavity (buccal vestibule and gum) and limbs (billets, metacarpals and metatarsals and scapular-humeral joint). The histopathological examination revealed foci of cutaneous erosions, characterized by loss and epidermal necrosis with spongiosis and vesicular degeneration of the remaining epidermis and mild inflammatory infiltrate in the underlying dermis, consisting predominantly of macrophages and, to a lesser degree, eosinophils. We identified two plants, Mimosa pudica and Mimosa debilis, both from the Leguminosae Mimosoideae family. Based on these results we can conclude that the skin lesions were caused by the traumatic action of Mimosa pudica and Mimosa debilis.
Acesso aberto (Open Access)
Prevalência da anemia infecciosa equina na Ilha de Marajó, estado do Pará, Brasil
(Universidade Federal do Pará, 2014) FREITAS, Nayra Fernanda de Queiroz Ramos; BARBOSA NETO, José Diomedes; http://lattes.cnpq.br/1516707357889557
The aim of the study was to determine the prevalence of equine infectious anemia in the municipalities of Cachoeira do Arari, Salvaterra, Santa Cruz do Arari and Soure, in the Marajó Island, State of Pará, Brazil. For serological survey were selected 349 samples collected from June 2012 to March 2013, tested by agar gel immunodiffusion. Blood count was performed in 65 samples and biochemical examinations in 70, in which was researched urea, creatinine, aspartate aminotransferase, alanine aminotransferase, gamma glutamyl transferase, alkaline phosphatase, total bilirubin and direct bilirubin. A prevalence of 24.06% (84/349) was verified. The average number of red blood cells was significantly lower in seropositive animals in relation to the seronegative ones and there was no significant difference in mean results of hematocrit, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin concentration, platelets, in the white blood cell count, as well as in the biochemical examination. The clinical observed was poor nutritional status, apathy, pale mucous membranes, dehydration and elevation in heart and respiratory rate. At necropsy, the primary findings in all horses were jaundiced housing, small accumulation of fluid in the abdominal cavity, as well as hepatomegaly and splenomegaly. The histopathological examination showed spleen and liver with hemosiderosis. The equine infectious anemia is endemic in the cities studied.