{"id":5809,"date":"2021-09-17T07:52:32","date_gmt":"2021-09-17T07:52:32","guid":{"rendered":"https:\/\/aboutsmallruminants.com\/?p=5809"},"modified":"2021-09-22T09:30:47","modified_gmt":"2021-09-22T09:30:47","slug":"agalassia-contagiosa-mammella","status":"publish","type":"post","link":"https:\/\/aboutsmallruminants.com\/it\/agalassia-contagiosa-mammella\/","title":{"rendered":"Conoscere l’Agalassia Contagiosa e darle la dovuta importanza"},"content":{"rendered":"
L’agalassia contagiosa \u00e8 una malattia dei piccoli ruminanti che ha un grande impatto economico<\/a> sul settore lattiero-caseario in tutto il mondo. Generalmente \u00e8\u00a0sotto diagnosticata<\/a>, per diverse ragioni, tra cui la sua variet\u00e0 di sintomi. Se vuoi conoscere la malattia, leggi il seguente articolo.
\n<\/strong><\/div>\n

 <\/p>\n

L’agente patogeno<\/h2>\n

L’agente principale \u00e8 Mycoplasma agalactiae<\/em>, anche se nelle capre \u00e8 possibile riscontrare la presenza di Mycoplasma mycoides <\/em>subsp.capri<\/em>, Mycoplasma capricolum<\/em> subsp. capricolum<\/em> e Mycoplasma putrefaciens<\/em>.<\/p>\n

 <\/p>\n

Come si sviluppa la malattia?<\/h2>\n

La trasmissione<\/a> pu\u00f2 avvenire per via oronasale tramite secrezione nasale o oculare, o tramite le escrezioni dalle lesioni articolari degli animali infetti. Sono fonte di infezione le superfici contaminate, quali mangiatoie, abbeveratoi o lettiere. I capretti o gli agnelli possono contrarre l’infezione tramite il colostro o il latte.<\/p>\n

\"\"<\/a>
Immagine 1: Patogenesi dell’agalassia contagiosa.<\/figcaption><\/figure>\n

Anche le femmine contraggono l’infezione per via mammaria, tramite le tettarelle o la mano degli addetti alla mungitura, che possono essere contaminate.<\/p>\n

Le femmine vengono infettate principalmente per via mammaria, tramite le tettarelle contaminate\u00a0<\/span><\/strong><\/p><\/blockquote>\n

Quando l’animale contrae l’infezione, l’agente patogeno si moltiplica<\/a> e poi si diffonde attraverso gli organi bersaglio: ghiandola mammaria, polmone, occhi, articolazioni… Nella sintomatologia si annoverano mastite, polmonite, cheratocongiuntivite, artrite, setticemia, aborti occasionali e orchite nei maschi.<\/p>\n

Nelle greggi possono verificarsi focolai o condizioni croniche, con un’alta incidenza di mastiti subcliniche. Le greggi interessate da condizioni croniche sono comunemente quelle di capre, in cui sono presenti portatori asintomatici.<\/p>\n

I portatori asintomatici consentono alla malattia di permanere nel gregge\u00a0\u00a0<\/span><\/strong><\/p><\/blockquote>\n

 <\/p>\n

Cosa succede nella mammella?<\/h2>\n

All’inizio, la mammella appare gonfia e calda<\/a>, successivamente diventa flaccida e piena di tessuto connettivo. In questa fase il latte diventa pi\u00f9 acquoso, giallastro o verdastro (potendo addirittura diventare purulento) e la sua produzione si riduce.<\/p>\n

Infine, la mammella<\/a> si atrofizza e si verifica agalassia a causa della necrosi degli epiteli ghiandolari e della compressione esercitata dalla fibrosi del tessuto.<\/p>\n

L’infezione provoca atrofia della mammella causando dunque la cessazione della produzione di latte\u00a0<\/span><\/strong><\/p><\/blockquote>\n

Conclusioni<\/h2>\n

\u25cf Eziologia eterogenea.
\n\u25cf Sintomatologia molto varia.
\n\u25cf Presenza di portatori asintomatici.
\n\u25cf Grande impatto economico dovuto alla perdita della produzione lattiero-casearia.<\/p>\n

 <\/p>\n

Autrice dell’articolo:\u00a0<\/strong><\/p>\n

Tania Per\u00e1lvarez Puerta. Product Manager Small Ruminants Unit \u2013 HIPRA\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

L’agalassia contagiosa \u00e8 una malattia dei piccoli ruminanti che ha un grande impatto economico sul settore lattiero-caseario in tutto il mondo. Generalmente \u00e8\u00a0sotto diagnosticata, per diverse ragioni, tra cui la sua variet\u00e0 di sintomi. Se vuoi conoscere la malattia, leggi il seguente articolo.   L’agente patogeno L’agente principale \u00e8 Mycoplasma agalactiae, anche se nelle capre […]<\/p>\n","protected":false},"author":5,"featured_media":5892,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-5809","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mastiti"],"yoast_head":"\nAgalassia contagiosa: caratteristiche della malattia<\/title>\n<meta name=\"description\" content=\"L'agalassia contagiosa \u00e8 una malattia di grande rilevanza nel settore lattiero-caseario. 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