ANIMAL PRODUCTION. ' 571 



" Creatin elimination was entirelj- independent of food, but varied in the 

 same order as live weight, weight of dressed carcass, of flesh, of bones, and of 

 blood. 



*' Soy beans, meat meal, and skim milk increase the digsetibility of the car- 

 bohydrates of the corn with which they are fed. Meat meal and skim milk 

 increase the apparent digestibility of the fat, and decrease the apparent di- 

 gestibility of the crude fiber of the corn with which they are fe<1, the results 

 being digestion coefficients of more than 100 and less than nothing." 



Feeding" of lecithin, C. Pucci (Atti. R. Acad. Econ. Ayr. Gcorg. Firenze, o. 

 ser., 10 {WIS), No. 4, pp. 425-451, fl(j8. 5).— Three experiments, in which 

 lecithin was fed in varying quantities to pigs, showed that this phosphorus- 

 containing feed had no influence on increase in weight. 



Calciuni feeding, J. Paechtnee (Wchnschr. Brau., SO (1913), No. .57, pp. 

 491-'i9.y). — It is estimated that in feeding a 700 kg, work horse a ration com- 

 posed of roughage (3 kg. meadow hay and 4 kg. of chopped straw) and 7.5 

 kg. corn, 14 gm. of CaO should be added in the form of chalk or commercial 

 preparation. If 8.5 kg. dried potatoes is substituted for the corn, 10 gm. CaO 

 is suggested. 



Color inheritance in the horse, E. N. Went worth (Zti^chr. Induktive 

 Ahstnm. u. Tererhungslchre, 11 {1913), Xo. 1-2, pp. 10-17). — The author states 

 that there has been a tendency among investigators to arrange all colors as an 

 epi.static and hypostatic series, expecting them, then, to conform to the simple 

 laws of presence and absence. He attempts to show the fallacy of this. 



A microscopic examination and simple chemical tests reveal only 2 pigments 

 in the coat of the ordinary horse, these corresponding to the red or yellow and 

 the black pigments found in rodents. The various factors influencing color 

 are discussed and the different colors qualitatively grouped. The tentative 

 composition as regards the different factors is given for the different colors. 



There is appended a short bibliography of works on this subject. 



[Trotting horses of Russia] (Horse Rev., 48 (1913), No. 24, pp. I488, 1489, 

 figs. 9). — The trotting horses of Russia are of 2 classes; the pure-bred Orloffs, 

 a breed established 2 centuries ago, and the " metis " or mixed-bred ones, 

 which have been produced by mingling the native Orloff blood with that of 

 foreign strains, almost exclusively American. While the " metis " horses are 

 as a rule distinctly superior to the pure Orloffs, the latter are in popular faror. 



[Poultry breeding], G. Wieninger (Monatsfi. Landw., 6 (1913), No. 11, pp. 

 339-344)' — 111 poultry-breeding trials to determine the relative value of eggs 

 of different w^eights it was found that the shell comprised 13.4 per cent of eggs 

 weighing 40 gm., and 10.1 per cent of eggn weighing 70 gm. The respective 

 protein contents were 12.29 and 12.76 per cent ; the fat contents 10.13 and 

 10.51 per cent ; the phosphoric acid 0.433 and 0.449 per cent ; and the lime 4.85 

 and 5.03 per cent. 



[Cotton-seed meal v. beef scrap for chicks], H. J. Wheeler (Rhode Island 

 Sta. Rpt. 1912, pp. 202, 203). — In this experiment 4-weeks-old chicks were fed 

 for 15 weeks on the same amount of a uniform basal ration, protein being added 

 in the form of cotton-seed meal or beef scraps. The results indicated that 

 very little difference exists in the value of the protein in the 2 concentrates, 

 either in the weight of the chicks or in the nitrogen recovered in the cooked 

 portion. It is noted that as a rule, chicks will, if allowed, con.sume more beef 

 scraps than cotton-seed meal, and in consequence make a larger growth. 



Poultry on the farm, L. L. Jones (BuI. da. State Col. Agr., 2 (1913), No. 2, 

 pp. 13-44, figs. 10). — This bulletin treats in a popular way of poultry house 



3819G'— No. 6—14 6 



