266 EXPERIMENT STATION RECOED. 



results of trials with swine fed ammouium salts and urea indicate that there 

 is an increased nitrogen retention with these substances. 



It is concluded that the form in which the nitrogen is retained must be as 

 protein or protein-like substances. 



Live stock and dairy produce {Ann. Reg. Agr. Expts. [London], 1913, 

 pp. 88-98). — This is a resume of British feeding experiments conducted during 

 1911-12 and previously reported from other sources. 



[Austrian live stock statistics] (Ostcrr. Statis., n. sen, 5 (1910), No. 1, 

 pp. 20+190. pis. 4)- — This is a compilation of statistics relating to cattle and 

 live stock production in Austria for the decade 1901-1910, as prepared by the 

 Royal Statistical Commission. 



Heredity of unpig'mented hair and of hide peculiarities in cattle and 

 horses, A. R. Walther {Ztschr. Induktive Abstam. u. Vererbungslehre, 10 

 {1913), No. 1-2, pp. 1-48, pi. 1, figs-. 2).— This reports studies made of the 

 inheritance of color markings of Shorthorn cattle and of horses in the 

 Trakehnen stud. 



A bibliography of American and foreign worlis is appended. 



Heredity of color in cattle, Richabdsen {Dcut. Landio. Tierzucht, 18 {1914), 

 i\o. 6, pp. 61-65. figs. 10). — A number of breeding trials indicated that the 

 single coloring (reddish brown) of the Netherland breed of cattle dominates 

 over the double coloring of the black and white sires. However, this dominance 

 was incomplete as the white color markings were in evidence. The degree of 

 coloring in the first cross was intermediate between the two parents. The color 

 markings in year-old animals were less distinct than in the calves. 



Estimating the age of calves, J. Schwabz {BeitrUge zur Altersbestimmung 

 dcs Kalbcs. Inuug. Diss., Univ. Lcipsic, 1912, pp. 144^ pl-^- 6). — Observations 

 were made on the growth of the eyeteeth, the retraction of the gums, the drying 

 of the navel cord, and the occurrence of hoof rings to determine the age of 

 calves. 



Feeding of calves on skim milk and cassava porridge, A. GouiN and P. 

 Andouard {Bui. 8oc. Nat. Agr. France, 14 {1914), Nok 1, pp. 40-42). — Successful 

 trials are reported in feeding skim milk and cassava flour as a substi- 

 tute for whole milk. Whole milk is fed the first week and the skim milk and 

 cassava porridge thereafter. 



Beef production, E. S. Bayard {Pcnn. Dcpt. Agr. Bui. 235, pp. 250, pis. 33). — 

 A somewhat complete popular treatise on the general phases of the feed, care, 

 and management of beef cattle, embodying many feeding experiments previ- 

 ously reported from other sources, and including chapters on summer feeding, 

 silage for fattening cattle, show steers, cattle farms, computing i-ations. cattle 

 crops, slaughtering cattle on the farm, marketing cattle, and diseases of cattle. 



The cattalo. — Crossing of American bison with domestic cattle {Mark Lane 

 Express, 111 {1914), No. 4301, p. 339). — An account of Canadian trials in cross- 

 ing the American bison with domestic cattle. The term cattalo is used to desig- 

 nate the mixed blood in all proportions including the hybrids. By using do- 

 mestic bulls it was possible to get away from all resemblance to the buffalo, 

 and vice versa by using the pure buffalo bull an animal was soon graded up 

 indistinguishable from the pure buffalo. 



The best results were obtained from a Hereford bull and a buffalo cow. 

 ^■arious other breeds, such as Angus, West Highland, Sussex, and Devon were 

 tried, the object being to learn which sort would yield the choicest pelt, but 

 no marked difference could be distinguished in the length and quality of hair 

 on the hybrids. Where the Hereford was used, the white face characteristic 

 dominated, but otherwise the whole color of the buffalo dominated. 



