Enfermedades que responden a la deficiencia de vitamina E y selenio en suinos y rumiantes de Costa Rica
Fecha
1980
Autores
Berrocal, Alexis
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Editor
Universidad Nacional, Costa Rica
Resumen
La información clínica y los hallazgos anatomopatológicos sugirieron desde 1918 la presencia de la deficiencia de vitamina E y selenio en rumiantes y suinos de Costa Rica. En el présente trabajo fueron estudiados un total de 39 casos, de ellos 14 se analizaron clínica y anatomohistopatológicamente, los restantes 25 casos se examinaron exclusivamente en forma anatomohistopatológica. Se recolectaron (en matadero) 67 muestras de músculo, utilizándose en todos los casos como técnica de tinción básica la Hematoxilina-Eosina, recurriéndose a otras coloraciones tales como von Giesson y Mallory para evidenciar ciertas alteraciones. El estudio demostró los efectos de la deficiencia de vitamina E y selenio en rumiantes y suinos en diferentes zonasde nuestro país. En bovinos las alteraciones clínicas y patológicas más importantes fueron: dificultad de incorporación, atrofia muscular, hipotonía lingual, extrasístoles y taquicardia. El examen anatomohistopatológico evidenció músculos de aspecto blanco, edema interfacial, fibrosis, ondulación de fibras, focos de regeneración y necrosis masiva. En suinos, el examen clínico mostró ''paso militar", dificultad locomotora, hipotonía muscular y los resultados anatomohistopatológioos más. característicos fueron músculo de aspecto blanco, edema en pared de vesícula biliar y gástrica, así como necrosis y fibrosis hepática; fragmentación, aumento de tamaño y ondulación de fibras musculares.
Clinical information and histopathological findings have suggested, since 1918, the presence of vitamin E and selenium deficiency in ruminants and swine in Costa Rica. In the present study, a total of 39 cases were examined; of these, 14 were analyzed clinically and histopathologically, while the remaining 25 cases were examined exclusively by histopathological means. A total of 67 muscle samples were collected (at the slaughterhouse); in all cases, hematoxylin-eosin was used as the basic staining technique, with other stains such as von Giesson and Mallory employed to highlight certain abnormalities. The study demonstrated the effects of vitamin E and selenium deficiency in ruminants and swine in different regions of our country. In cattle, the most significant clinical and pathological changes were: difficulty standing, muscle atrophy, lingual hypotonia, extrasystoles, and tachycardia. Anatomopathological examination revealed white-appearing muscles, interfacial edema, fibrosis, wavy fibers, foci of regeneration, and massive necrosis. In swine, the clinical examination revealed a “military gait,” difficulty walking, and muscle hypotonia, and the most characteristic anatomopathological findings were white-appearing muscle, edema in the gallbladder and gastric walls, as well as hepatic necrosis and fibrosis; fragmentation, enlargement, and undulation of muscle fibers.
Clinical information and histopathological findings have suggested, since 1918, the presence of vitamin E and selenium deficiency in ruminants and swine in Costa Rica. In the present study, a total of 39 cases were examined; of these, 14 were analyzed clinically and histopathologically, while the remaining 25 cases were examined exclusively by histopathological means. A total of 67 muscle samples were collected (at the slaughterhouse); in all cases, hematoxylin-eosin was used as the basic staining technique, with other stains such as von Giesson and Mallory employed to highlight certain abnormalities. The study demonstrated the effects of vitamin E and selenium deficiency in ruminants and swine in different regions of our country. In cattle, the most significant clinical and pathological changes were: difficulty standing, muscle atrophy, lingual hypotonia, extrasystoles, and tachycardia. Anatomopathological examination revealed white-appearing muscles, interfacial edema, fibrosis, wavy fibers, foci of regeneration, and massive necrosis. In swine, the clinical examination revealed a “military gait,” difficulty walking, and muscle hypotonia, and the most characteristic anatomopathological findings were white-appearing muscle, edema in the gallbladder and gastric walls, as well as hepatic necrosis and fibrosis; fragmentation, enlargement, and undulation of muscle fibers.
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Palabras clave
CERDO, ENFERMEDADES PORCINAS, RUMIANTES, COSTA RICA, PORK, SWINE DISEASES, RUMINANTS
