1919] 



AliTIMAL PRODUCTION'. 



571 



3.5 lbs. of meat scraps and 3 lbs. of tankage, respectively, in addition. It was 

 estimated that equal amounts of animal protein would be furnished the latter 

 pens. The main results of the feeding experiments are summarized in the fol- 

 lowing table : 



Annual ajg and feed records per bird of Leghorn pullets during feeding 



experiments. 



Averages of first and second experiments. 



Additions to staTidard 

 ration. 



Cottonseed meal 



Buttermilk 



Buttermilk: and grain 



Num- 

 ber of 

 eggs. 



55. 7 

 166. 9 

 137.9 



Grain 

 and 



masti 



cnn- 



sumeJ. 



Lhs. 

 60.2 

 63.1 

 64.2 



Averages of third and fourth experiments. 



Additions to standard 

 ration. 



Meat scrap 

 Tankage . . 

 None 



Total 



feed 



per 



pound 



01 eggs. 



Lb.i. 

 3.77 

 3.60 

 9.32 



1 Liquid buttermilk computed at 10 per cent of its weight. 



Cottonseed meal is considered practically worthless as a protein concen- 

 trate for egg production. The egg records of the birds receiving it were 

 especially low during the winter. 



In the experiments on the influence of confinement it was found that birds 

 kept housed continuously averaged 112.3 eggs per year, those x^-ith. access to a 

 small yard (10 by 80 ft.) 124.4 eggs, and those with access to a free range 

 (130 by IGO ft.), 12S.75 eggs. 



Poultry feeding' experiments, R. B. Thompson {New Mexico Sla. Bui. Ill 

 (1918), pp. 22, figs. o). — This bulletin presents in tabular form tiie production 

 and feed records from January 1.5 to June 15, 1918, of each of 15 pens of 

 varied size (9 to 33 birds) for each of 5 periods of varied length (28 to 32 

 days). A group of 5 pens, totaling 11 Rhode Island Red pullets, 29 White 

 Leghorn pullets, and 57 White Leghorn hens, received a inash of bran, ground 

 oats, and meat scrap (2:1:2). Three other groups each received a mash 

 which was a variant of this. Ground milo maize replaced the oats in the mash 

 given to 4 pens comprising 16 White Wyandotte pullets and 84 White Leghorn 

 pullets. Alfalfa meal replaced bran in the rations of 2 pens that included 22 

 first year and 33 second year White Leghorns. Finally, 3 parts of cottonseed 

 meal was given in place of the meat scrap to the remaining birds, 20 Rhode 

 Island Red pullets and 24 White Leghorn hens. The scratch in all cases con- 

 sisted of whole oats and milo maize. When the l)irds did not have access to 

 growing alfalfa they were given green rape and beets. 



The records are not summarized so as to compare the different mashes, but 

 all four are considered satisfactory. The hens, but not the pullets of the 

 last group produced eggs showing "cottonseed meals spots." 



The experiment was planned at the time of a wheat shortage. It is sug- 

 .iresiod that whenever a common ingredient of poultry feeds is not available a 

 simple combination of accessible feeds should be tried and not the complex 

 mixtures often sold by manufacturers. 



The influence of age of hens on egg production, H. E, Dvoeachek and 

 S. R. Stout {Arkansas Sta. Bui. 163 {1919), pp. 3-8). — The annual egg records 

 of individual hens in their pullet and subsequent years are tabulated. There 

 were two pens of Single Comb White Leghorns and a pen each of Anconas, 

 Single Comb Black iSIinorcas, Barred Plymouth Rocks, Columbian Plymouth 



