BREEDS OF DAIRY CATTLE 287 



SOME COMMON QUESTIONS RELATING TO DAIRY CATTLE 



1. What did the people of Jersey do to protect the purity of their cattle? 



2. What is the difference between Island and American type Jerseys? 



3. How productive is the Jersey in milk and butter-fat? 



4. How large are Holstein-Friesian cattle? 



5. What would be average Holstein-Friesian milk yields, and how do 



these compare with heavy records made? 



6. How adaptable is the Holstein-Friesian breed to American con- 



ditions? Where is it most abundant? 



7. In what respects do Guernseys and Jerseys resemble each other? 



8. How do Guernseys rank in official milk tests? 



9. In what section of the United States are Guernseys most popular? 



10. What is the color of the Ayrshire? 



11. Why is Lily of Willowmoor a noted cow? 



12. Are Brown Swiss dairy or dual-purpose type? 



13. What is the difference between the Kerry and the Dexter? 



SOME INSTRUCTIVE LABORATORY WORK 



14. A comparative study of two or more dairy herds of different 



breeds. 



15. Making a township or county map of pure-bred herds. 



16. Getting records of production from different herds. 



17. Studying lines of breeding in one or more herds. 



18. Investigating the use of pure-bred sires in grade herds. 



19. Locating the best bred sire in the community. 



