191T] ANIMAL PRODUCTION. 373 



to a satisfactory degree of development young chicks l^ept under the artificial 

 conditions prevailing in the laboratory, further experience seems essential before 

 a final conclusion in respect to the problem of the experimental feeding of young 

 chicks can be promulgated. The rapid growth of this species, however, renders 

 chicks especially suitable for experiments on growth. 



See also a previous note by Buckner, Nollau, and Kastle (E. S. R., 34, p. 871). 



Cottonseed meal — a good feed for laying- hens, E. P. Clayton {Mississippi 

 Sta. Bui. 175 (1916), pp. 7, fig. 1). — In continuation of work already noted 

 (E. S. R., 30, p. 175) results are here given of feeding cottonseed meal to lay- 

 ing hens and to broilers. 



In one test with old laying hens two lots of 9 hens each were fed a com- 

 mercial scratch feed and a mash of corn meal, wheat bran, and oats. In ad- 

 dition, one of the lots was fed cottonseed meal to the extent of 11 per cent 

 of the mash and the other lot beef scrap to the extent of 5.5 per cent of the 

 mash. The cottonseed meal fed hens laid 249 eggs during the test, at a feed 

 cost per dozen of 32.4 cts., and the beef scrap fed hens 174 eggs, at a cost of 

 40.8 cts. per dozen. 



In another test with old White Leghorn hens two lots were fed a commercial 

 scratch feed and a mash of corn meal and wheat bran. In addition, the 14 

 hens in lot 1 were fed cottonseed meal to the extent of 22 per cent of the mash 

 and the 7 hens in lot 2 beef scrap to the extent of 11 per cent of the mash. 

 One hen of lot 1 died at the beginning of the fourth month of the 6-months 

 test. The hens in pen 1 laid 396 eggs, at a feed cost of 18 cts. per dozen, and 

 and those in pen 2, 200 eggs, at a cost of 24 cts. per dozen. It is stated that 

 the increased egg production of the cottonseed meal fed hens was especially 

 noticeable dui'ing the fall molt. 



Results are also given of feeding tests with broilers indicating that cotton- 

 seed meal, when it comprises 25 per cent or less of the mash, is a good feed 

 for fattening broilers. 



As a result of experience with the general flock the station recommends the 

 feeding of cottonseed meal to poultry in amounts not exceeding 25 per cent of 

 the rations. The author states that pullets at the station grow rapidly and 

 mature and begin to lay early when fed a mash containing at first 15 per cent 

 and later 25 per cent of cottonseed meal. Formulas are given for mashes and 

 grain mixtures for laying hens and young chicks. 



Rations for laying hens in winter, W. J. Buss {Mo. Bui. Ohio Sta., 1 

 {1916), No. 11, pp. 324, 325). — Brief results are given of an experiment to de- 

 termine the relative efficiency and economy of a ration of corn, wheat, and oats 

 and one believed to be well balanced for egg production. Soy beans and meat 

 scrap were also compared in this test as sources of protein for laying hens. 



There were four lots of 21 Barred Plymouth Rock pullets each used in the 

 experiment. Lot 1 was fed corn, wheat, and oats (3 : 2 : 1 by weight) ; lot 2. corn 

 and wheat (3:1) and a mash of ground corn, bran, and meat scrap (2:1:2) ; 

 lot 3, corn and wheat (3:1) and a mash of ground corn, bran, ground soy beans, 

 and meat scrap (4:4:5:5) ; and lot 4, corn, wheat, and soy beans (3:1:1) and 

 a mash of ground corn, bran, and ground soy beans (2:1:2). All the lots received 

 grit and all except lot 1 oyster shells. During the test which lasted from 

 October 28, 1915, to March 15, 1916, the pullets in lot 1 produced an average of 

 3.08 eggs each at a feed cost per dozen of $1.55 ; lot 2, 32.21 eggs each at a feed 

 cost of 21 cts. per dozen ; lot 3, 22.95 eggs at a feed cost of 28 cts. per dozen ; 

 and lot 4, 7.37 eggs each at a feed cost of 76 cts. per dozen. 



The logic of the winter feeding schedule, Me. and Mrs. G. R. Shoup {WasJi- 

 ington Sta., West. Wash. Sta. Mo. Bui., 4 {1916), No. 8, pp. 9-15). — Continuing 

 the experiment previously noted (E. S. R., 34, p. 669) results are reported which 



