Caracterização de mamites em pequenos ruminantes abatidos para consumo
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2014-07-22
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A mamite é uma inflamação da glândula mamária, normalmente de natureza
multifatorial, cuja etiologia é essencialmente infeciosa ou traumática. Trata-se de
infeções frequentes em pequenos ruminantes e uma causa importante de refugo
destes animais nos rebanhos, sendo, por isso, provável o seu aparecimento em
matadouro.
Este estudo teve como objetivo principal caracterizar as mamites detetadas em
pequenos ruminantes abatidos para consumo, assim como às alterações nos gânglios
linfáticos relacionados. Depois de feito o diagnóstico macroscópico confirmamos o
resultado através de exame histopatológico das amostras recolhidas.
Os resultados deste estudo mostram que a percentagem de mamites detetadas
foi de 3,9% da totalidade de fêmeas adultas apresentadas para abate. Tendo em conta
o número de fêmeas em cada estado produtivo, a frequência de mamite é muito
superior em animais em lactação (12,2%) do que em animais em fase seca (2,5%).
Analisando as causas de reprovação total em pequenos ruminantes adultos,
observamos que as mamites representam 12,5% das patologias encontradas.
Quanto à presença de reação ganglionar associada, constatamos que em
todos os casos de mamite os gânglios linfáticos retromamários encontram-se
alterados, quer macro quer microscopicamente. Em relação aos gânglios linfáticos précrurais
e ilíacos médios detetamos alterações quando as mamites são mais agressivas
e têm repercussão na carcaça.
O tipo de mamite mais encontrado neste estudo foi a mamite purulenta com
formação de abcessos e pudemos constatar que sempre que estes têm uma cápsula
fina são motivo de R.O.G.
Em associação com as mamites detetadas encontrámos, como achado
histopatológico, dois tumores mamários, situação descrita como rara em pequenos
ruminantes.
Durante a Inspeção Sanitária salientamos a importância de proceder à
inspeção atenta e minuciosa das glândulas mamárias no sentido duma exata
apreciação do seu estado sanitário, a fim de produzir a decisão sanitária correta,
assegurando a salubridade das carnes.
The mastitis is an inflammation of the mammary gland, usually multifactorial, whose etiology is essentially infectious or traumatic. It is common infections in small ruminants and a major cause of spoilage of these animals in herds, therefore, likely his appearance on slaughterhouse. This study aimed to characterize the detected mastitis in small ruminants slaughtered for consumption, as well as there lated changes in the lymph nodes. After the diagnosis macroscopic confirm there sultby the histopathological examination of samples collected. There sults of this study show the percentage of mastitis was detected in 3.9% of all adult female presented for slaughter. Taking into a ccount the number of females in each productive state, the frequency is muchhig her mastitis in lactating animals (12.2%) than in animals phase dried (2.5%). Analyzing the causes of failure in small ruminants full adults, we observed that the mastitis represent 12.5% of the pathologies found. Regarding the presence of associated lymph node reaction, it was found that in all cases of mastitis retromamários lymph nodes are altered, either macro or microscopically. Regarding lymph nodes pre-crural and iliac medium we detected changes when mastitis are more aggressive and have repercussions on the housing. The type of mastitis most commonly found in this study was purulent mastitis with abscess formation, and we found that they always have a thin capsule are of ROG. In association with mastitis detected found as histopathological findings, two breast tumors, a situation described as rare in small ruminants. During the Sanitary Inspection emphasize the importance of proceeding to close inspectionand thorough mammary glands towards na accurate assessmentof their health status in order to produce the correct health decision, ensuring the whole somenessof the meat.
The mastitis is an inflammation of the mammary gland, usually multifactorial, whose etiology is essentially infectious or traumatic. It is common infections in small ruminants and a major cause of spoilage of these animals in herds, therefore, likely his appearance on slaughterhouse. This study aimed to characterize the detected mastitis in small ruminants slaughtered for consumption, as well as there lated changes in the lymph nodes. After the diagnosis macroscopic confirm there sultby the histopathological examination of samples collected. There sults of this study show the percentage of mastitis was detected in 3.9% of all adult female presented for slaughter. Taking into a ccount the number of females in each productive state, the frequency is muchhig her mastitis in lactating animals (12.2%) than in animals phase dried (2.5%). Analyzing the causes of failure in small ruminants full adults, we observed that the mastitis represent 12.5% of the pathologies found. Regarding the presence of associated lymph node reaction, it was found that in all cases of mastitis retromamários lymph nodes are altered, either macro or microscopically. Regarding lymph nodes pre-crural and iliac medium we detected changes when mastitis are more aggressive and have repercussions on the housing. The type of mastitis most commonly found in this study was purulent mastitis with abscess formation, and we found that they always have a thin capsule are of ROG. In association with mastitis detected found as histopathological findings, two breast tumors, a situation described as rare in small ruminants. During the Sanitary Inspection emphasize the importance of proceeding to close inspectionand thorough mammary glands towards na accurate assessmentof their health status in order to produce the correct health decision, ensuring the whole somenessof the meat.
Descrição
Dissertação de Mestrado em Segurança Alimentar
Palavras-chave
Glândula mamária , Gânglios linfáticos , Inspeção sanitária , Pequenos ruminantes , Reação ganglionar , Abcessos