The publication of this model in his book De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres) just before his death in 1543 was a major event in the history of science, triggering the Copernican Revolution and making an important contribution to the Scientific Revolution.
World market prices for dairy products The average world market price of butter in 1981-2006 was US$1 580/ton, fluctuating between US$1 000/ton and US$2 000/ton. It shot up to US$2 886/ton in 2007 and, in the first six months of 2008, increased further to US$4 021/ton.
For feed intakes the six Holstein herds consumed an average of 52.417 lbs per milking cow, while the four Jersey herds consumed an average of 45.094 lbs of feed per milking cow for the year 2012. For feed efficiency, the Holstein dairies had 1.353 lbs of milk produced per pound of dry matter (DM) consumed.he Holstein dairies had a $10.85 average on feed cost per hundred weight, while the Jersey dairies had a $10.12 average on feed cost per hundred weight. As well as the information from the dairies, I constructed spread sheets to compare different prices of milk income for different cooperatives.