868 EXPEEIMENT STATION RECORD. 



The results of metabolism experiments carried on with swine indicate that 

 the addition of calcium carbonate or calcium phosphate to grain rations in- 

 creases the retention of both calcium and phosphorus and results in the forma- 

 tion of a heavier skeleton. 



" The relative efficiency of calcium carbonate and calcium phosphate in in- 

 creasing the retention of phosphorus depends in a measure upon the amount of 

 phosphorus present in the grain. The addition of calcium carbonate to a grain 

 ration increases the calcium and decreases the phosphorus in the urine. 



" The addition of calcium phosphate does not influence the amount of calcium 

 and does not always influence the amount of phosphorus excreted in the urine. 

 Additional calcium supplied to growing swine increases the size of the shaft 

 of the bone, but the length or rate of growth is not influenced. 



" High calcium rations, as compared with low calcium rations, had no effect 

 whatever during a single gestation period on the size or calcium content of 

 the skeleton of the fetus. The skeleton is not increased in any dimension by 

 a wide variation in the amount of calcium fed the mother." 



Studies of the natural pasture grasses of Uruguay, J. Puig y Nattino 

 (Rev. Min. Indus. Uruguay, 1 (1913), No. 3, pp. 82-97). — The composition, dis- 

 triubution, and relative feeding value of 20 of the natural pasture grasses of 

 Uruguay are reported. These include orchard grass, rescue grass, meadow 

 fescue, rye grass, wild oats, plantain, blue joint, and others. 



Sugar-beet pulp for feeding live stock [Jour. Bd. Agr. [London], 20 {1913), 

 No. 9, pp. 784-793). — This is a review of English, German, and American ex- 

 periments in feeding sugar-beet pulp to various classes of farm stock. 



Commercial feeding stuffs, J. P. Street (Connecticut State Sta. Rpt. 1913, 

 pt. 5, pp. 309-351). — ^Analyses are reported of the following feeding stuffs: 

 Cotton-seed meal, linseed meal, wheat bran, gluten meal, hominy feeds, corn 

 meal, rye middlings, buckwheat middlings, malt sprouts, dried brewers' and 

 distillers' grains, alfalfa meal, dried-beet pulp, molasses feed, ground corn- 

 stalks, corn kernels, beef scrap, ground brush, cocoa sittings, peanut hearts, 

 bakery refuse, North Carolina grass, meadow hay, and various mixed and pro- 

 prietary feeds. There are also included data showing short weights on bagged 

 feeds and a table giving the average composition of 436 fodders and feeds 

 analyzed at the station, 1878-1913. 



Commercial feeding stuffs of Pennsylvania in 1912, J. W. Kellogg et al. 

 (Penn. Dept. Agr. Bui. 234 (1913), pp. 227). — The average analysis and retail 

 price of the following feeding stuffs are reported: Cotton-seed meal, gluten 

 meal, linseed meal, distillers' grains, brewers' grains, buckwheat middlings, malt 

 sprouts, wheat middlings, low-grade flour, rye middlings, corn-oil meal, wheat 

 bran, molasses feed, alfalfa meal, hominy feed, corn bran, dried beet pulp, oat 

 hulls, meat scrap, and various mixed and proprietary feeds. 



Animal economy section (X. Cong, Internat. Agr. Gand, 1913, Compt. Rend., 

 pp. 241-257). — This is merely the minutes of this section of the congress, re- 

 cording the papers and discussions relating to animal economy that came before 

 that body, as previously noted (E. S. R., 29, p. 104). 



Division of animal husbandry (Philippine Agr. Rev. [English Ed.}, 6 (1918), 

 No. 12, pp. 595-602, 591-593, pis. 2). — Feeding experiments with swine indicate 

 that the substitution of papaya for a portion of grain ration materially increases 

 daily gains, although an entire ration of papayas was not satisfactory. 



The results of a test with kapok seed meal indicate that it may be used to 

 form a valuable adjunct feed for cattle, although it is a fat rather than a 

 muscle producing feed and could perhaps be used more advantageously in finish- 

 ing cattle for market than for the feeding of work cattle. When fed to swine 

 it was found that the meal had a poisonous effect. 



