The Effects Of Calicivirus Essay, Research Paper
What are the effects of Calicivirus?
As coney calicivirus kills coneies rapidly and the coneies die softly, there are normally no obvious marks of disease in a coney that has died from the virus. Some marks may be asessed but dependable diagnosing of the disease can merely be made from lab trials on a piece of coney liver or lien.
Possible indicants of the disease
+ The coat and organic structure of the coney appear in good status with no outward marks of disease ;
+ Watery fluid may run from the olfactory organ and oral cavity & # 8211 ; this will be blood stained if the coney has been dead for more than approximately 12 hours ;
+ The coney & # 8217 ; s liver may look picket and swollen ( crumbly ) ;
+ The lien will be dark and enlarged at least double ;
+ The kidneys may look dark and enlarged.
What was the success of release in Australia?
The initial impact of coney calicivirus in many waterless countries of Australia has been a big bead in coney Numberss. In parts of Western Australia, Northern Territory and South Australia coney populations fell by about 95 % within a few hebdomads of being affected by the virus. In other countries, the consequences have been more unsuccesfull and more research is needed to understand how the virus operates
in different land systems and climatic conditions.
How does the virus spread?
The virus chiefly spreads in two ways:1 & # 8217 ; descrying & # 8217 ; where it jumps long distances via a vector ( such as an insect ) is involved and 2. & # 8216 ; infilling & # 8217 ; where it is transmitted from rabbit-to-rabbit via contact with septic coneies or their fecal matters. The rate of spread seems to be affected by climatic conditions. More research is being conducted to better understand how the virus is transmitted.
Where was it tested and released?
Australian tests started in March 1995 on Wardang Island. These were designed to supply more information about the effectivity of the virus including the impact and continuity of the virus and its rate of spread between and within warren systems. In a test in September 1995, the virus spread through the quarantine country. The test was terminated forthwith and all coneies in the quarantine country were culled. On 16 October, research lab trials confirmed that coneies at Point Pearce on the mainland had died of coney calicivirus disease.
After the blessing of the usage of the virus as a biological control against coneies,
280 release sites were chosen and divided amongst all States and Districts:
NSW 50 QLD 50 ACT 5
VIC 50 WA 40 TAS 5
SA 50 NT 30
