Milk Secretion.

Taranaki Daily News, 17 August 1935, Page 24 (Supplement)

Milk Secretion.

A professor in America designed a milking machine capable of delivering into separate containers the milk secreted by each of the four quarters of the cow’s udder. He found that the two front quarters each produced slightly more than 20 per cent, of the total milk yield. The two rear quarters each produced slightly less than 30 per cent. The milk produced from the* right and left halves was practically uniform. It can thus be reckoned that 40 per cent, of the yield of the milk of a cow comes from her two fore quarters, while 60 per cent, comes from the two hind quarters. Studying the lactation curves of a group of Friesian and Jersey cows it was found that the general trend in the rate, of milk secretion by quarters was quite uniform throughout the entire lactation period. Considering the average of each breed separately no tendency was observed for either the front or rear quarters to secrete milk richer in fat than the other, even though there was considerable difference in the average yield of milk.