DAIRYING 63 



59. To^what extent do cows of the same breed vary in their 

 economical milk production? 



60. Why is abundant feed economical and why are protein feeds 

 especially appropriate for cows giving milk? 



61. What objections may be made to feed containing too much fat? 



62. How may the activity of the the milk gland be illustrated? 



63. If a cow gives 50 pounds of milk testing 3.5% fat, how much 

 grain and rough feed should be fed her? 



64. What effect does the feeding of salt or of watery feeds have on 

 the milk and milk production? 



65. How does turning out to pasture affect the milk of cows during 

 the first and later weeks? 



66. What changes in the standard of richness in milk should be 

 made during the season when cows are on pasture feed? 



67. What are four or more changes that are noticed in milk when 

 cows are first turned out to pasture ? 



68. Did the increased milk and butter fat obtained in the case of 

 Cow i, 3, and 5 in paragraph 210 pay for the increase in feed 

 at present prices of milk, butter and of the feeds used? 



Write This at the End of Your Examination 



I hereby certify that the .above questions were answered entirely 

 by me. 



Signed 



Address. . 



