Editing Nyala (section)

==Diseases==
[[File:Nyala heart (Tragelaphus angasii).jpg|thumb|200px|Nyala heart]]
The nyala can also suffer from [[myopathy]]. In between January 1973 and June 1981, 21 nyalas succumbed to the disease. The main symptoms were stiffness, inability to rise, and failure to suckle in newborns. [[Necrosis]] (that is, the premature death of cells in a living tissue) and [[ossification|mineralization]] were found in the skeletal muscle after a histological analysis. In the juveniles there was acute necrosis of the [[cardiac muscle]]. In adults, there was interstitial [[fibrosis]] of the cardiac muscle, along with [[arteriosclerosis]].<ref>{{cite journal| last=Liu| first=S.|author2=Dolensek, E.P. |author3=Herron, A.J. |author4=Stover, J. |author5= Doherty, J.G. | title=Myopathy in the nyala| journal=Journal of the American Veterinary Medical Association| year=1982| volume=181| issue=11| pages=1232–6| doi=10.2460/javma.1982.181.11.1232| pmid=7174434}}</ref>

In a report published in 1994 entitled "Epidemiological observations on spongiform encephalopathies in captive wild animals in the British Isles", it was noted that [[spongiform encephalopathy]] had been diagnosed in one nyala captive in a zoo.<ref name=bse>{{cite journal| last=Kirkwood| first=J.|author2=Cunningham, A. | title=Epidemiological observations on spongiform encephalopathies in captive wild animals in the British Isles| journal=Veterinary Record| date=24 September 1994| volume=135| issue=13| pages=296–303| doi=10.1136/vr.135.13.296| doi-broken-date=27 May 2025| pmid=7817514| s2cid=21133285}}</ref> The nyala was formerly affected by the disease [[rinderpest]], although the viral disease is considered eradicated now.<ref name=iucn>{{cite iucn|author=IUCN SSC Antelope Specialist Group|year=2008|url=https://www.iucnredlist.org/details/22052/0|title=''Tragelaphus angasii''|access-date=29 March 2009}} Database entry includes a brief justification of why this species is of least concern.</ref>