PROJECT 9 



FINDING THE FAILURE COW EST THE HERD 



Material. Milk cows selected from one or more herds in the community ; feed ; balances ; milk 

 tester; other equipment as needed. 



Directions. Feed each cow the same kind of a ration. On the same three days of each month weigh 

 each kind of feed consumed by each animal and record the weight. On the same days weigh the milk 

 produced by each animal, night and morning. Make a composite sample of the milk from each cow 

 and test it for butter fat by the Babcock method, using a separate blank form for each cow. Record 

 all the data in order. At the end of the period of lactation of each make a summary of each cow's 

 cost, production, and profit. 



Questions. Is there a wide difference in the efficiency of the cows tested as regards their ability 

 to convert feed consumed into milk and butter fat? How do you explain any difference found? 

 Which of the cows tested shows the greatest profit ? Which least ? Which one, if either, would you select 

 as the best beef type of animal ? Which is the best type of dairy animal ? 



SUMMARY OF RESULTS 



(Use separate blank for each cow) 



Cow No 



209 



