When the natural system sees that there is an overpopulation of any species - birds in particular - it "creates" a situation that allows killer viruses to mutate and re-balance the system by killing birds. Creating in this case means that birds are stressed and in close quarters both conditions facilitated/trigger an outbreak of a virus - and the result is a system that re-balances itself by reducing the number of animals in a confined space.
Culling the birds stops the immediate outbreak but continued industrialized breeding starts up the virus cycle again. Raising fewer birds and in less confined space reduces the outbreaks. Additionally, cleaning out urine and feces often and putting it in digesters that can kill all viruses, produce methane gas for energy production, and clean fertilizer. Another by-product? Fewer outbreaks of the "normal" flu which all start from an interaction between people, poultry, and pigs.
Japan culls another 190,000 chickens
It has now sacrificed more than half a million birds in efforts to contain H5N1 avian influenza.
Read more at www.atlanticfarmfocus.ca
This 10th outbreak was in the Miyazaki prefecture where it is proving difficult to find places to dispose of carcasses. It is the seventh outbreak since Jan. 22 in southwestern Miyazaki Prefecture.