Point of Distinction between Battery and Free Range Eggs

Abstract

CONSIDERABLE speculation has arisen during the past few years about the difference between battery and free range eggs, or, more precisely, eggs from intensively and extensively kept flocks of fowl. Little evidence has been presented as to the exact nature of this difference, with the result that the majority of the populace, not appreciating the economic factors involved, are prejudiced against eggs laid by intensively kept birds, and imagine that there is a real difference in either flavour or nutritional value. Sinclair^1,2 suggested that eggs from intensively kept birds are more atherogenic than eggs from free range birds. He based this suggestion on his theory³ that atherosclerosis results from a relative deficiency of essential fatty acids, linoleic and arachidonic acids, and his unverified assumption that eggs from free range birds contain greater amounts of essential fatty acids.