472 EXPEEIMENT STATION KECOED. 



The effect produced upon the fatty matter of milk by a ration esclusively 

 consisting of sugar beets, J. Boes and H. Weyland {Ztschr. rjiiersuch. Xahr. 

 u. Geniissmtl., 29 (1915), No. 12, pp. 473-415; abs. inlnternat. Inst. Agr. [Rome^, 

 Mo. Bui. Agr. Intel, and Plant Diseases, 6 (1915), Xo. 10, p. 1362). — The authors 

 analyzed a sample of butter coming from a farm where it had been necessary 

 to feed the cows for a long time exclusively upon sugar beets. The butter was 

 of normal color, but excessively hard and its taste was unpleasant. It was 

 characterized by its small amount of ash, the great quantity of soluble volatile 

 fatty acids, and the surprisingly large content of insoluble volatile fatty acids. 

 The iodin value was very small. In spite of these characteristics, the butter 

 was of about the same composition as that obtained by feeding cows on a 

 mixture of beets and other foodstuffs. 



Fat content of milk from heifers and cows, J. J. Hoopeb (Breeder's Gaz., 

 68 (1915), No. 19. p. 808). — It is stated that data contained in a booklet recently 

 sent out by the Holstein-Frieslan Association show that, from records of G34 

 cows on test, heifers apparently gave slightly richer milk than the mature 

 cows. Cows 7 years 2 months of age produced milk averaging 3.52 per cent 

 butter fat; cows 4 years months, 3.5 per cent; cows 4 years 3 months, 3.51 

 per cent; cows 3 years 9 mouths, 3.7S per cent; cows 3 years 3 months, 3.54 

 per cent; cows 2 years 8 months, 3.55 per cent; and cows 2 years 2 months, 

 3.51 per cent. 



The rate of the passage of fatty acid of food into the mammary glands 

 of the goat, O. C. Bowks (four. Biol. Chem., 22 (1915), No. 1, pp. 11-13).— In 

 this study peanut oil was fed to a goat. It was found that the time required 

 for the ingested fatty acids to appear in the milk was never over 12.5 hours and 

 generally less. 



Breed origins of the dairy queens, J. B. Bain (Hoard's Dairyman, 1915, 

 Dec. 24, pp. 703-707, 730, 731, figs. 10). — A ceneral r§.sum6 of the history and 

 development of the principal bree<ls, together with an account of the high- 

 record cows of each breed. 



[World's champion] (Hoanl's Dairyman, 50 (1915), No. 18, pp. 359, 560, figs. 

 7). — An account of the Holstein cow Duche.'^.'^ Skylark Ormsby, which recently 

 completed a year's record of 27,761 lbs. of milk and 1,205 lbs. of fat. 



Some results of cow-test association work in New Hampshire, F. Ras- 

 iirssEN and W. P. Davis (New HampsliircCol. Ext. Bui. 4 (1915), pp. 3-32). — 

 In connection with summaries of the work of a number of cow-test associations 

 in New Hampshire it is pointed out that the averages of 747 cows show that 

 the largest producers consumed the most feed and were the most profitable. 

 Improvement in one herd numbering 205 cows and belonging to an association 

 for four years shows an increase per cow in milk production of 1,077 lbs. of 

 milk and 48.6 lbs. of butter fat, and an increa.se in profit of $22.35 per 

 cow. Improvements in another herd for four j"ears show an increase of 671 

 lbs. of milk and 45.9 lbs. of butter fat per cow, and an increase in profit of 

 $23.01 per cow. 



Data on the cost of keeping a cow axe given. 



The short-time fat test, O. E. Reed (Hoard's Dairyman-, 60 (1913). No. IS, 

 p. 577). — Data ai'e presented tending to show that tlie short-time fat te»t, notablv 

 the 7-day test. Is not reliable. One cow on oflicial test for one week gave milk 

 that showed a test of 4.18 per cent, although for the previous year her average 

 test was only 3.42 per cent, while another cow, with a yearly test of 3.19 per 

 cent, gave an official 7-day test of 4.04 per cent. 



The National Dairy Council, H. B. Favill (Hoard's Dairyman, 50 (1915), 

 No. 17, pp. 535, 538). — A presidential addre.ss delivered at tho minting of the 



