1918] ANTMAL PRODUCnON. 773 



In figuring the cost of gain, grain was valued at $20 per ton, silage at $3 

 per ton, and prairie hay at ?6 per ton. 



Tables are given showing individual weights and gains of lambs, as well 

 as results of feeding experiments with lambs previously noted (E S R 23 

 p. 176). ' ' 



Self-feeding hogs, A. F. Saybe (Country Gent^ 81 (1916), No. 27, p. 1296).— 

 In a feeding operation on a Wisconsin farm 59 spring and fall Duroc shotes 

 were fed shelled corn by the self-feeder method for 35 days and made an 

 average daily gain per head of 2.45 lbs., consuming 5.1 lbs. corn per pound of 

 gain, and realizing a profit of $61.65 on the lot. This amounted to a net 

 feeding profit per bushel of corn of 14 cts., the cost of the corn being 68 cts. 

 per bushel. 



Feeding experiments with work horses, N. Hansson (Meddel. Centralanst. 

 Forsoksv. Jordbruksomrddet, No. 126 (1915), pp. 54, figs. S; abs. in K. Landtbr. 

 Akad. Handl. och Tidskr., 55 (1916), No. 3, pp. 218-229; Jour. Bd. Agr. [Lotv- 

 don], 23 (1916), No. 3, pp. 275-277).— Wrom these experiments it is concluded 

 that 1 lb. of barley may be replaced by the following quantities of other foods 

 for work horses: One and one-tenth lbs. mixed barley and oats, 1.2 lbs. oats, 

 from 0.95 to 1 lb. corn, 1 lb. molasses, 1.1 lbs. sugar-beet slices, 1.2 lbs. wheat 

 bran, 1.5 lbs. mixed oat bran and rice meal (3:2), L8 lbs. oat bran, 0.9 lb. 

 dry matter in potatoes, and 1.1 lbs. dry matter in roots. Where considerable 

 quantities of potatoes, roots, molasses, corn, etc, are fed additional protein 

 must be given in the form of peanut cake, soy-bean cake, linseed cake, peas, 

 beans, gluten feed, or good hay with clover, alfalfa, or other leguminous fodder. 



The following are given as the requirements of work horses of 1,300 lbs. 

 live weight, as regards digestible protein (pounds per head per day) : Easy 

 work, from 1.1 to 1.32 lbs. ; moderate work, from 1.32 to 1.76 ; hard work, 

 from 1.76 to 2.2 ; very hard work, 2.2 lbs. or more. 



Sour milk for chicken feeding, H. L. Kempsteb (Missouri Sta. Circ. 79 

 (1916), pp. 4, fid- !)■ — Three 25-bird pens of White Leghorn pullets were fed 

 from November 1, 1914, to October 31, 1915, to test the effect of sour milk on 

 egg production. About two-thirds of the ration of each of the pens consisted 

 of a scratch feed of corn and wheat (2:1). One lot which received no meat 

 was fed a mash of bran, middlings or shorts, and com meal ; another lot was 

 fed the same mash and in addition all the sour milk the fowls wanted ; a third 

 lot was fed the same mash with beef scrap. 



The no-meat pen laid an average of 65 eggs per hen for the year, the beef- 

 fed hens an average of 107 eggs each, and the sour-milk-fed hens an average 

 of 131 eggs each. On a cost basis per hundredweight for feeds of $1.66 for 

 wheat, $1.60 for corn, $1.20 for bran, $1.70 for corn meal, $1.40 for shorts, $3.25 

 for beef scrap, and 20 cts. for sour milk, and, with eggs at 20 cts. per dozen, 

 there was a loss of $1 on the lot fed no meat, a profit of $19.78 on the lot fed 

 beef scrap, and a profit of $28.26 on the lot fed sour milk. 



Artificial brooding and chick feeding, W. F. Schoppe (Montana Sta. Circ. 

 56 (1916), pp. 193-207, figs. 8).— A description and working plans are given 

 of a colony brooder house in which are installed two of the Maine fresh-air 

 brooders (E. S. R., 26, p. 572). Directions for operating the brooder and 

 feeding the chicks are included. 



Fecundity of hens in relation to size of egg, E. Bbown (Jour. Bd. Agr. 

 ILondon], 23 (1916), No. 3, pp. 230-233) .-Data taken from a laying competi- 

 tion, including 162 White Wyandotte pullets and 156 White Leghorn pullets, 

 are given. The number of eggs laid by each pullet were divided into first grade 

 (2 oz. and upwards), second grade (1.75 oz. to 2 oz.), and third grade (under 

 1.75 oz.). 



