07/05/2015
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Porcine
11
Melanosis uberis in a pig
Histopathological study showed the deposition of a brownish-black pigment (melanin) around the mammary gland ducts and blood vessels. This condition is known as melanosis uberis and has been described in pigs and bears. It is probably a congenital defect.
Black miliary lesions in the subcutaneous fat of the ventral region.
At a closer look one can observe that the black spots show a filamentous pattern, tracing mammary ducts and/or vessels.
Subepitelial, pigment-laden melanocytes (arrowheads). Pigment-laden macrophages near blood vessels (arrow).
11 comment(s)
but is this edible? that’s all I want to know.
Yes, it is edible. Melanosis is not of public health concern (just cells with black pigment) but, when present, the carcass might be condemned due to organoleptic alteration.
Is there any way I can upload a picture of what I think might be malanosis uberis to add to this page?!
Thanks for your comment!
You may the file to suport.escorxadors@irta.cat and i’ll ask the IT guys to post it near your comment.
Comment from Pork industry group in LinkedIn:
By Arayan Yuenyaw
My client also had this problem and has approved by VLDL of Vet. Chulalongkorn University As the accumulation of melanin pigment in fat layer of pig’s belly (around mammary gland – bacon part). More high frequency rate of gilt than barrow or entire pig.http://www.isranews.org/images/2014/thaireform/CU2.jpg
Comment from Pork industry group in LinkedIn:
By E. Wayne Johnson 朱稳森博士:
Sometimes seen in entirely black pigs. Some times even melanin in lymphnodes and organs.
Comment from Swine health group in LinkedIn:
By Bradford A Forkner:
Is it possibly any way that it relates to eating canola meal? I was asked this question by slaughter house officials at WPX 3 years ago.
Comment from Swine health group in LinkedIn:
By Gino Totté:
Check for tannin in raw materials?
http://vet.sagepub.com/content/46/2/329.full
Comment form Veterinary pathology group in LinkedIn:
By William Van Alstine
Is this simply immature/nongravid mammary tissue?
Quin va ser el dictàmen en realció a l’aptitud o no per al consum humà?
Gràcies
El dictamen va ser decomís parcial (espurg) de la zona afectada i aptitud de la resta de la canal.