Activity Two

Five of the most common pathologies in cows are: 

• Blackleg: the cow adquire necrosis in one or more of his legs, and is commonly caused by the bacterie Clostridium chauvoei. Is very contagious to young livestock. 
• Lymphomas: is a type of blood cancer that occurs when B or T lymphocytes, the white blood cells that form a part of the immune system and help protect the body from infection and disease, divide faster than normal cells or live longer than they are supposed to. Lymphoma may develop in the lymph nodes, spleen, bone marrow, blood or other organs and eventually they form a tumor. 
• Tuberculosis: is a common, and in many cases fatal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis.Tuberculosis typically attacks the lungs, but can also affect other parts of the body. 
• Paratuberculosis: is a contagious, chronic and sometimes fatal infection that primarily affects the small intestine of ruminants. It is caused by the bacterium Mycobacterium avium subspecies paratuberculosis. 
• Masitis: is the inflammation of breast tissue. S. aureus is the most common etiological organism responsible, but S. epidermidis and streptococci are occasionally isolated as well.

The Digestive System of a Cow:

Extrenal Anatomy of the Cow:
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Pigs A very good place to learn and know about the pigs, is: http://www.thepigsite.com/. A Scientific webpage dedicated to al about the pig, since care to production.



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References

• http://en.wikipedia.org/wiki/Lymphoma
• http://en.wikipedia.org/wiki/Tuberculosis
• http://en.wikipedia.org/wiki/Paratuberculosis
• http://en.wikipedia.org/wiki/Mastitis 

Images

• http://veterinary-online.blogspot.com/2013/02/the-digestive-apparatus-of-animals.html
• http://www.ag.auburn.edu/users/schmisp/ansc1000/dairy-parts-names.jpg
• http://www.9sites.org/pigcare/piganatomy.gif