Show I II H a aIRY I EThe IRY PROTEIN REQUIRED TO PRODUCE MILK Cows will not drink rank or stale water nn and the milk pall will show the this results Care should also be exercised to see that the water supply does not become contaminated by sewage wastes and the like lIlie since Infectious diseases such as typhoid fever may maybe maybe maybe be passe passed on to the milk consumer by cows drinking such contaminated water The butterfat of milk Is considered the most valuable component It Is la upon the content of this material that cream and find to a large extent milk are bought and sold The percentage of fat fut In milk varies with the breed of ot cows cowa and ond with the Individuals of the various breeds The Babcock test enables en en- enables ables us to find this percentage A cow must obtain an excess of ot carbohydrates carbohydrates carbo curbo- hydrates and fat above that required for maintenance In ol order er to make milk It Is questionable whether the percentage percent percent- age of fat tat In him milk can be changed b by the animals animal's feed but at least the luck lack of ot sufficient amount of fee feed Is a n limiting factor In the milk and fat production The casein and albumen of milk together together together to to- gether form forth Its protein content They are the essentials In n making cheese chees Proteins are specific In the work they will do For example feathers are 87 per cent protein but the they wouldn't make milk It Is this fact that teaches us that a cow requires proteins of ot certain certain cere tain 1 kinds for milk pro production These proteins are found In n linseed meal gluten fee feed cottonseed meal and alfalfa The Time proteins of ot other feeds teeds can cnn be utilized for maintenance and milk production In the presence of oft t proteins from the above feeds Milk sugar Is manufactured b by the cow from the time carbohydrates and the fat obtained In the time feed This component component component com com- will rarely be a n limiting factor factor factor fac fac- tor In milk production The Time ash content of milk Indicates that a n large quantity of minerals must be at hand to supply the demand In Incase Incase Incase case of Insufficiency of ot minerals In Inthe Inthe inthe the ration the cow will draw upon her skeleton an and show the result In a run down condition and In falling off oft offIn offIn In milk Salt calcium or lime and phosphorus are the minerals usually lacking It Is common practice to feed salt while calcium and phosphorus phosphorus can be supplied by certain fee feeds s such as cottonseed meal wheat bran alfalfa or any legume |