- 537 



noted from which American dairymen might profit, the following 

 may be mentioned : Successful dairying in the County of Ayrshire, 

 Scotland, is due to the milk-producing capacity of the cattle and 

 the excellence of the Scotch cheese, the high quality of which lies 

 not so much in the skill of the cheese-maker as in the care of 

 the cows, stable, cheese room, and utensils, thus keeping the milk 

 clean so that it is delivered to the cheese vat in almost perfect 

 condition. British agricultural stock and dairy shows differ from 

 American shows because they are conducted for the sole purpose 

 of stimulating interest in agriculture. 



F. P. WALKER. Experiments on the Feeding of Dairy Cows. 



(.Durham County Council \ Ed. Com., Offer ton Bui. 3>pp.5-20; 

 abs. Dairy, 21 (1909), No. 248, p. 217). E. S. It., XXI, 

 Dec. 1909). 



This is a report of an experiment to discover the effect of 

 feeding brewers' grains upon the quantity and quality of milk and 

 is a continuation of earlier work (E. S. J?., p. 870). 



Two lots of 5 cows each were used in this experiment, which 

 lasted 10 weeks. The daily ration of lot i consisted of 4 Ibs. of 

 maize meal, 2 Ibs. of Bombay cotton cake, 3 Ibs. of chopped straw, 

 12 libs, of hay, 20 Ibs. of brewers' grains, and 20 Ibs. of swedes 

 per i ooo Ibs. live weight. The average daily yield per head for 

 this lot was 11.435 Q ts - f m ^k, containing 3.34 per cent milk fat 

 and 13.48 per cent total solids, Lot 2, which received a similar 

 ration except that the brewers' grains were replaced by 40 Ibs. of 

 swedes, gave an average daily yield per head of 11.505 qts. of 

 milk, containing 3.37 per cent fat and 13.44 per cent total solids. 

 Lot i lost on an average 2.5 Ibs. per head in body weight, whereas 

 lot 2 made an average gain in body weight of 5.6 Ibs. per head. 



At the end of the above experiment the rations of the 2 lots 

 were reversed, with the following results: The average daily yield 

 of lot i for 10 weeks was 10.595 qts. milk, containing 3.49 per 

 cent fat and 9.21 per cent solids not-fat. Lot 2 gave an average 

 daily yield per head of 10.86 qts. milk, containing 3.45 per cent 

 fat and 9.09 per cent solids not-fat. Both lots lost in body weight, 

 the first lot losing 14 Ibs. and the second lot 19.6 Ibs. per head. 



