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Pigmentation of the viscera and carcasses em ovinos na regiao Nordeste do Brasil
Ist Teil von
Ciência rural, 2013-02, Vol.43 (2), p.338
Ort / Verlag
Universidade Federal de Santa Maria
Erscheinungsjahr
2013
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
We report exogenous pigmentation in sheep grazing in native pastures in northeastern Brazil. The sheep carcasses from a farm were condemned at the slaughterhouse due to pigmentation of the carcasses and viscera. In visits to the farm, bluish-purple pigmentation of the mucosa was observed in the sheep. In two necropsied sheep, a bluish-purple pigment was observed in the skin, subcutaneous tissue, fat, muscles, cartilage, bones, serous membranes of the forestomachs, kidneys, adrenal glands, and the mucosa of the uterus, urinary bladder, urethra, vagina, trachea, bronchi, and bronchioles. Some bone surfaces, the intima of large arteries, tendons, muscle insertions, and ligaments had a yellow-brown or light brown pigment. However, the pigment was not observed upon histologic examination of tissues, suggesting that the pigmentation is caused by a plant. Two plants, Rhamnidium molle and Pereskia bahiensis, were fed to experimental sheep and rabbits, but did not cause pigmentation. Key words: exogenous pigmentation, ruminants, carcass condemnation. Descreve-se pigmentacao exogena em ovinos, pastejando numa area de pastagem nativa da regiao nordeste do Brasil. Os ovinos de uma fazenda, destinados ao abate, tiveram as carcacas rejeitadas pelo frigorifico em virtude da pigmentacao apresentada nos tecidos. Em visitas a fazenda, foi observada pigmentacao azul-violeta nas mucosas de ovelhas. Em dois ovinos necropsiados, pigmento azul-violeta foi observado na pele, tecido subcutaneo, gordura, musculos, cartilagens, ossos, serosa dos pre-estomagos, rins, glandulas adrenais, mucosa do utero, bexiga urinaria, uretra, vagina, traqueia, bronquios e bronquiolos. Algumas superficies osseas, intima de grandes arterias, tendoes, insercoes musculares e ligamentos tinham pigmento castanho-amarelo ou castanho claro. No entanto, o pigmento nao foi observado nos tecidos apos processamento para o exame histologico, o que sugere que a pigmentacao e causada por uma substancia exogena, provavelmente presente em uma planta consumida. Duas plantas, Rhamnidium molle e Pereskia bahiensis, foram fornecidas experimentalmente a ovinos e coelhos, mas nao causaram pigmentacao. Palavras-chave: pigmentacao exogena, ruminantes, condenacao de carcacas.
Sprache
Spanisch
Identifikatoren
ISSN: 0103-8478
eISSN: 1678-4596
Titel-ID: cdi_gale_infotracmisc_A441766777
Format
–
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