The ability of indigenous animals to adapt to climate and quality of feed r
esources and to fluctuating supply of nutrients is outlined. It is argued t
hat the intensive animal production systems adapted in many industrialised
countries has generally been based on selection for single traits e.g, milk
, meat, wool etc, and largely under human control of the environment. This
contrasts with the indigenous animals in less industrialised countries whic
h are largely multi-purpose but exposed to environmental control. Moving si
ngle purpose animals from human controlled environments into areas of envir
onmental control causes lots of problems of mortality as animals have to so
me extend lost their ability to respond to environmental stresses (e.g. cli
mate, quality of feed resources, fluctuating supply) and often die.