Description of histopathological findings in lambs intoxicated with selenium by intraruminal boluses
Abstract
Selenium is an essential micronutrient for ruminants, it participates in the optimal functioning of proteins and enzymes that can combat oxidative stress in the body. However, its toxicity is documented in different species. The objective of this work was to describe the histopathological findings in lambs intoxicated with selenium administered through intraruminal boluses. 4 lambs of 3 months of age and 15 kg average supplemented with selenium by intraruminal bolus found intoxicated. The main findings at necropsy were pulmonary edema, necrosis, hemorrhage and hyperkeratosis in the reticulo-rumen. The histopathology of these organs showed congestion of alveolar capillaries, hemorrhage, edema, and hyaline membranes in the lungs; areas of hemorrhage in the liver parenchyma, congested liver sinusoids, degeneration and necrosis of hepatocytes, hepatocellular lipid degeneration; reticulum with areas of necrosis, denigration of the mucosa and areas of hyperplasia, as well as hyperkeratosis; multiple areas of degeneration and necrosis of cardiac muscle fibers; areas of hemorrhage and congestion in the renal parenchyma, degeneration and tubular necrosis. This study evidences the lesions related to selenium intoxication in lambs supplemented with the mineral through intraruminal boluses.
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Copyright (c) 2023 Midori Jocelyn Hernádez Serratos, Germán Isauro Garrido Fariñas, Mireya Juárez Ramírez, Jorge Luis Tórtora Pérez, Elein Hernández Trujillo, Víctor Manuel Díaz Sánchez
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