There are economic reasons and technicians that encourage the thought of a third milking rodeo on dairy farming. Stand out above all the possibility of improving the health of the udder for roundups of high production and a level of low prices that induce a higher production to maintain the billing.
With respect to the increase of production, a large number of studies have observed that the litraje is of order, "fixed" hovering around the 3.5 lt/cow/day (for heifers the answer is a 75% lower) and the fluctuation of the percentage depends on the level of production prior to the 3rd milking, but both the cow of 40 litres as of 20, going from 2x to 3x rise in average of 3.5 lt.
It has also been observed that milked 3 times/day to cows in the early lactation leads to a residual effect that favorably affects the rest of the lactation (probably due to increased activity or amount of cells secreting milk).
With respect to the components of the milk, they could be reduced somatic cell counts and will surely reduce the percentages of fat and protein of the same.
The question of the workmanship it is the biggest stumbling block that you can find to analyze the possibility of the third milking. It is hoped also, that incorporating a group of people to the milking extra, will lose intensity in the follow-up of the cow's individual.
We incorporate a estimator of the marginal result generated by spending of 2 ordeñes daily to 3x (click on the image cover of this note). The higher cost incorporated is the extra labor required, we assume a small fall in the price of milk by the subject of the components (-0,06%). We also consider the extra expense in Energy and Maintenance and Hygiene. With respect to the increase of the consumption of dry matter, take 250 grams/cow/day for each litre of extra produced. Each stakeholder can play with the variables and to estimate their own result.