HEPATIC LESIONS IN CATTLE GRAZING ON Brachiaria Decumbens IN MESETAS, META (COLOMBIA)
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2012
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| _version_ | 1876435867765047296 |
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| author | J. A. Caicedo |
| author_facet | J. A. Caicedo |
| contents | HEPATIC LESIONS IN CATTLE GRAZING ON Brachiaria Decumbens IN MESETAS, META (COLOMBIA) J. A. Caicedo J. C. Ospina C. A. Chaves J. Peña M. C. Lozano B. Doncel Veterinaria liver cattle fibrosis Brachiaria foamy macrophage Brachiaria spp. is the predominate pasture grass for cattle grazing in the Orinoco watershed in Colombia. However, it has been recognized that this grass can cause liver damage, leading to photosensitization in ruminants; such injury is caused by the steroidal saponins found in this plant. Liver samples taken from five clinically-healthy bulls’ left and right liver lobes and portal vein entrance were processed by routine histological techniques to evaluate liver lesions caused by Brachiaria decumbens in cattle grazing on Colombia’s e astern plains. The main lesions observed in these tissues were mononuclear cell cho - langiohepatitis, foamy macrophages, moderate bile pigment accumulation, hepatocyte death, binucleated hepatocytes, moderate bile duct hyperplasia and multiple foci of mild fibrosis in portal areas; these were corroborated by Masson’s trichrome staining. s uch lesions were predominantly distributed at the portal vein entrance, frequently being located in the periportal region. This type of lesion has usually been attributed to Brachiaria decumbens consumption, and was present in clinically healthy animals exclusively feeding on this type of grass. Thus we conclude that the tissue alterations found herein were caused by Brachiaria decumbens . This research should be expanded to involve a larger selection of cattle populations, throughout a broader geographical region. 2012 artículo científico 0120-2952 https://www.redalyc.org/articulo.oa?id=407639231004 en http://www.redalyc.org/revista.oa?id=4076 Revista de la Facultad de Medicina Veterinaria y de Zootecnia application/pdf Universidad Nacional de Colombia Revista de la Facultad de Medicina Veterinaria y de Zootecnia (Colombia) Num.II Vol.59 |
| format | Artículo científico |
| id | redalyc_407639231004 |
| institution | Redalyc |
| language | en |
| publishDate | 2012 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | HEPATIC LESIONS IN CATTLE GRAZING ON Brachiaria Decumbens IN MESETAS, META (COLOMBIA) J. A. Caicedo Veterinaria liver cattle fibrosis Brachiaria foamy macrophage HEPATIC LESIONS IN CATTLE GRAZING ON Brachiaria Decumbens IN MESETAS, META (COLOMBIA) J. A. Caicedo J. C. Ospina C. A. Chaves J. Peña M. C. Lozano B. Doncel Veterinaria liver cattle fibrosis Brachiaria foamy macrophage Brachiaria spp. is the predominate pasture grass for cattle grazing in the Orinoco watershed in Colombia. However, it has been recognized that this grass can cause liver damage, leading to photosensitization in ruminants; such injury is caused by the steroidal saponins found in this plant. Liver samples taken from five clinically-healthy bulls’ left and right liver lobes and portal vein entrance were processed by routine histological techniques to evaluate liver lesions caused by Brachiaria decumbens in cattle grazing on Colombia’s e astern plains. The main lesions observed in these tissues were mononuclear cell cho - langiohepatitis, foamy macrophages, moderate bile pigment accumulation, hepatocyte death, binucleated hepatocytes, moderate bile duct hyperplasia and multiple foci of mild fibrosis in portal areas; these were corroborated by Masson’s trichrome staining. s uch lesions were predominantly distributed at the portal vein entrance, frequently being located in the periportal region. This type of lesion has usually been attributed to Brachiaria decumbens consumption, and was present in clinically healthy animals exclusively feeding on this type of grass. Thus we conclude that the tissue alterations found herein were caused by Brachiaria decumbens . This research should be expanded to involve a larger selection of cattle populations, throughout a broader geographical region. 2012 artículo científico 0120-2952 https://www.redalyc.org/articulo.oa?id=407639231004 en http://www.redalyc.org/revista.oa?id=4076 Revista de la Facultad de Medicina Veterinaria y de Zootecnia application/pdf Universidad Nacional de Colombia Revista de la Facultad de Medicina Veterinaria y de Zootecnia (Colombia) Num.II Vol.59 |
| title | HEPATIC LESIONS IN CATTLE GRAZING ON Brachiaria Decumbens IN MESETAS, META (COLOMBIA) |
| topic | Veterinaria liver cattle fibrosis Brachiaria foamy macrophage |
| url | https://www.redalyc.org/articulo.oa?id=407639231004 |