lo Oct., 1 908. J Improvemcul in Dairy Herds. 603 



The duties of an officer appointed by the Department shall be as 

 follows : — 



1. To approach boards of directors, and consult with thtm prior to 



the formation of the association. 



2. To attend meetings of dairymen and address them on the ques- 



tion of improvement of dairy herds, explain the methods 

 to be adopted, and assist in the formation of the association 

 and its conduct. 



3. To visit all members of the association and instruct them in 



methods of weighing and taking samples. 



4. To make official tests when required, for the purpose of admis- 



sion into the milk register to be referred to hereafter. 



5. To check results of test of dairymen who are members of the 



association, and compare same with factory returns. 



6. At the end of each year to prepare a report and statement 



showing result of year's work; also a quarterly statement 

 for publication. 



7. To perform all testing for the association at the place appointed 



for the purpose. 



The instructions to dairymen in the methods of weighing and taking 

 samples are : — 



1. One of the blank record forms should be posted in the shed on 



a board with a pencil attached — in a convenient and well 

 lighted place — and the balance should be fixed close by. 



2. It is recommended that each cow's milk be weighed every night 



and morning, and that a sample for testing be taken three 

 times a month that is, on the loth, 20^1, and 30th of both 

 the night and morning's milk, and transferred to the bottle. 



3. If it be found impracticable to weigh each cow's milk night 



and morning then it will be necessary to weigh only on the 

 davs set apart for sampling. The sum of the three days' 

 milk divided by 3 multiplied by the number of days in the 

 month will represent the total vield per cow per month. 



4. Immediately after weighing each cow's milk the sample in the 



sampling tube is transferred to composite sample bottle by 

 placing the top of the forefinger of the right hand on the 

 top of the tube, thereby preventing the admission of air, and 

 consequently the outlet of milk sample from same. 



5. It is important that the whole of the milk contained in the tube 



be put into a composite sample bottle and care must be ex- 

 ercised in placing each cow's milk in the right bottle. 



6. Immediately the milk is transferred to composite sample bottle 



the cork must be inserted tightly to prevent evaporation. 



7. Mix the milk in the test bottles every time a fresh sample is 



added bv giving the bottle a rotary motion. 



8. Each cow's name or number should be affixed to composite 



sample bottle. 



9. Keep the box containing the test samples undisturbed in a cool 



place and always safelv locked. 



10. Forward record sheets enclo.sed in sample box when delivering 



same to factory. 



