Arizona republican., 1891-02-21
ABOUT TESTING MILK.
TEST MILK BEFORE SELLING IT TO
 THE CREAMERY.

A Cow Must Give a Large Amount ef
 Butter Tat in a Year If She Is to Re-
 tsrn Any Profits for Food aud Koep.
 MIX Analysis.
 The value of COW for dairy purposes depends upon several factors, tho two most important of which are the quan- tity and the quality of the milk. We have some cows at this station that give milk which contains about per cent. fat. Such cows must give about thirty three pounds of milk to mako g pound of butter. We have others that run 6 per cent. fat, in which case twenty pounds will make pound of butter. After giving milk several months these rich cows sometimes run up to per cent. fat, in which case about fourteen pounds of milk will make one of butter. With this knowledge of the amount of fat in milk we have only to go to the records of milking to learn the standing of each COW.
 can assure the reader that the per cent. cows would have gone long ago had we not wished to keep them for the purpose of studying some features of their milk that the milk from the other cows did not possess.
 do not wish to be understood as in. sisting that the richest milk is always the cheapest Some cows will give very rich milk, but in such small quantity that they are not profitable, while cow giving 8 per cent. milk may be one of the most profitable on the farm. It does not matter whether the milk is of rich or medium quality so long as the total amount of fat produced is entirely satis- factory. A COW must give e large amount of butter fat for the year if she is to return any profits for feed and keep. ..,
 With the methods for testing milk now before the public there is no reason why the dairyman should not know the relative value of all the cows in his herd. It does not seem to me necessary that each man should own testing ap- paratus; he can take sample of milk and have til, factory make test for g small fee. A factory using the Babcock test could well afford to make the fat determinations for it's patrons for five cents each.
 But unless we remember that the fat test is only one of two figures which must be multiplied together to get the true result, we may do the cow rank in- justic. To get the other figure the dai- ryman must weigh the milk from his COWS. To do this spring balance can be purchased for dollar or two and hung up in the dairy barn, and the milk can be weighed thereon daily, or if this seems too much labor lot the milk be weighed once a week, and on the same day always, and careful record made.
 A sheet of brown manilla paper can be ruled with lead pencil in few min utes and lacked upon a board with a hole at the top, which can be hung upon nail close by the scales. The cows can be named or numbered, and the amount of milk set in the appropriate place with very little trouble. I know that many will say that this is too much trouble, but nothing is too much trouble which helps man about his business.
 Nothing will open the dairyman's eyes more than weighing the milk and hay ing these analyses made. Nine times out of ten, after such an examination, there will be some COWS for sale at any price to the local stock buyer. .--Experi- inent Station Bulletin.