586 



EXPERIMENT STATION EECORD. 



meal, the volatile acid content being higher and the iodin ninnl)er lower. The 

 addition of sugar increased the volatile acid content of the ])utter and decreased the 

 iodin number, the melting point remaining practically unchanged. The ration con- 

 taining palm oil decreased the iodin numl)er and increased the melting point nearly 

 2° C. without changing the volatile acid content. 



Feeding experiments, J. S. Moore {Mississippi Sfa. Rpt. 1901, j>p. 23-26). — 

 Tests were made to compare cotton-seed meal with wheat bran and Johnson grass 

 hay with cowiJea hay for milch cows. Different amounts of cotton-seed meal and 

 wheat bran were fed to 3 lots of 3 cows each in 2 tests of 4 weeks each. The data 

 are tabulated. The results are considered as showing that 4 lbs. of cotton-seed meal 

 are equal to 6 His. of wheat bran. Results of feeding cowpea hay and Johnson grass 

 hay in rations otherwise alike to 2 lots of 3 cows each for 4 weeks indicated that the 

 2 kinds of hay have practically the same feeding value. The residts of these and 

 earlier experiments are considered as showing that 1 lb. of cotton-seed meal, 1.71 

 lbs. of cotton seed, 2 lbs. of corn meal, and 1.5 lbs. of wheat bran ha\'e the same 

 feeding value. ' 



A comparative experiment in feeding oil cake to dairy cattle, G. Fascetti 

 {Slaz. Sper. A(/r. Ital, S4 {1901), No 9, pp. 849-864). 



Dairy herd records, G. H. True {Arizona Sfa. Bnl. .?5, pp. 293-309, figs. 3) . — 

 Introductory notes are given on Arizona as a market for dairy products, cooperative 

 creameries, and on the care of milk. Tabulated records are given of 58 herds in 

 Salt River Valley for the j^ear ended October 31, 1900, and of 43 herds for 6 to 11 

 inonths. Of the 58 herds 16 failed to pay what the author estimates as the cost of 

 keeping ($32 a year per cow). The gross returns from the average cow of the best 

 herd was $54.80, and from the average cow of the poorest herd $13.28. The differ- 

 ences in returns from different herds are attributed mainly to differences in the 

 quality of the cows, as methods of feeding are considered practically uniform. Indi- 

 vidual records are given of 12 pure-bred Jersey and 30 grade cows belonging to 2 

 herds ranking among the best for the year. Variations in the fat content of the 

 milk of each cow during the year and between consecutive tests are talnilated. The 

 author lielieves that the oiily way of determining the value of a cow involves weigh- 

 ing and testing all of the milk. 



Record of dairy herd, J. 8. Moore {Mississqypi Sta. Rpt. 1901, pp. 17-23). — 

 A record is given of 9 pure-bred Jersey cows for the calendar year 1900. The data 

 are tabulated and summarized as follows: "The record of the herd for the year 

 shows that the average cost of the feed was $33.54, ranging from $30.66 to $36.51. 

 The yield of milk ranged from 3,801 lbs. to 7,045, the average being 5,149 lbs. The 

 average amount of butter was 324.6 lbs., and ranged from 267.6 to 436.2 His. The 

 average cost of feed to produce 100 lbs. of milk was 66.4 cts. The cost of producing 

 1 lb. of butter ranged from 8.37 cts. to 12.29, the average being 10.52 cts." 



Records of the station herd for 1898-99 and 1899-1900 {Yermont Sta. 

 Ept. 1900, pp. 445-460). — These records are similar in character to those previously 

 reported (E. S. R., 12, p. 286). The following table summarizes some of the data 

 for 6 years. 



Average herd record for 6 years. 



