1917] 



ANIMAL PEODUCTION. 

 Distribution of nitrogen in protein substances. 



269 



Kind of material. 



Kind of nitrogen. 



Am- 

 monia. 



Me- 

 lanin. 



Cystin. 



Argi- 

 nin. 



II is- 

 tidin. 



Lysin. 



Amino 

 of fil- 

 trate 

 (mono- 

 amino 

 acid). 



Non- 

 amino 

 of fil- 

 trate 

 (prolla, 

 oxy- 

 prolin, 

 trypto- 

 phane, 

 etc.). 



Total. 



Soy bean 



Distillers' dried grains 



Cottonseed meal 



Cowpeas 



Wheat bran 



Maize kernel 



Hemp seed 



Rice 



Sunflower seed 



Rolled oats 



Oat grain 



Sprouted oats 



Barley grain 



Rye grain 



Tankage 



Dried blood 



Unroasted peanut 



Black walnut 



Shellbark hickory nut 



Pecan 



Gluten flour 



Gluten (wheat) 



Wheat 



Cantaloup seed 



Gelatin 



Proprietary calf meal . 



Perct. 

 12.97 

 13.06 

 14.06 

 11.83 

 9.67 

 4.63 

 9.93 

 10.23 

 15.42 

 13.12 

 13.31 

 13.18 

 16.19 

 1.5. 00 

 10. 03 

 6.19 

 10.93 

 10.71 

 9.47 

 9.43 

 22.99 

 22.53 

 16.49 

 7.51 

 1.41 

 8.59 



Per ct. 

 3.69 

 8.21 

 6.27 

 9.57 



13.75 

 7.00 

 4.15 

 9.98 

 5.73 

 2.60 

 2.97 

 2.40 

 2.87 

 1.54 

 6.88 

 5.69 

 4.36 

 4.53 

 6.59 

 6.21 

 1.31 

 1.01 



10.29 



6.42 



.51 



9.29 



Perct. 

 1.52 

 3.02 

 2.74 

 6.74 

 5.96 

 4.06 

 2.05 

 6.97 

 2.98 

 5.22 

 4.48 

 5.32 

 4.38 

 2.20 

 2.46 

 2.02 

 .81 

 1.27 

 1.58 

 2.87 

 2.12 

 1.91 

 1.60 

 1.18 



Perct. 

 15.52 

 11.27 

 12.77 

 15.98 

 12.53 

 16.19 

 21.38 

 11.94 

 16.80 

 12.12 

 11.42 

 11.26 

 8.65 

 10.49 

 12.34 

 7.72 

 20.82 

 23.77 

 24.24 

 6.91 

 8.86 

 7.61 

 5.26 

 19.39 

 18.72 

 14.58 



Perct. 

 2.60 

 .00 

 7.57 

 .00 

 3.84 

 4.45 

 3.01 

 3.18 

 4.56 



10.54 

 9.58 

 9.61 

 6.70 



10.48 

 2.18 

 8.37 

 6.13 

 5.98 

 6.66 



21.91 

 5.18 

 5.57 

 8.36 



12.05 

 3.65 



19.80 



Per ct. 



7.02 



4.79 



1.94 



3.56 



4.04 



8.53 



6.71 



.00 



4.86 



.00 



.00 



.70 



.00 



1.24 



2.50 



9.97 



5.31 



3.49 



3.37 



3.25 



.40 



.51 



.96 



5.93 



9.58 



.67 



Perct. 

 48.76 

 50.68 

 45.02 

 46.70 

 49.95 

 49.69 

 44.20 

 38.83 

 45.32 

 46.99 

 43.49 

 41.61 

 44.16 

 37.96 

 54.73 

 51.53 

 52.36 

 45.01 

 43.25 

 42.28 

 49.19 

 49.05 

 41.06 

 35.36 

 40.87 

 36.76 



Per ct. 



7.12 



10.66 



7.49 



.58 



.00 



.00 



5.28 



15.90 



5.27 



12.68 



11.29 



12.48 



18.37 



21.63 



9.01 



3.94 



1.40 



3.12 



7.48 



7.89 



7.67 



9.76 



17. 95 



13.66 



23.22 



14.18 



Per ct. 

 99.20 

 101. 70 

 97.86 

 94.96 

 99.74 

 94.55 

 96.73 

 97. 03 

 100. 92 

 103. 27 

 96.54 

 96.56 

 101.32 

 100. 52 

 100. 13 

 95.44 

 99.12 

 97.90 

 103. 61 

 100. 75 

 97.72 

 97.95 

 101.97 

 101.50 

 98. 02 

 103.87 



[Animal husbandry studies] (Ann. Rpt. Ontario Agr. Col. and Expt. Farm, 

 j^l {1915), pp. 32-3/f). — Alfalfa hay was compared with oat straw for steer feed- 

 ing for 118 days, the groups being given the same grain ration, as well as silage 

 and the hay or straw 4 : 1. The steers in the alfalfa group made an average 

 daily gain of 1.82 lbs. per steer, and those in the straw group 1.54 lbs. The al- 

 falfa-fed steers made more rapid gains than those getting straw, but they con- 

 sumed a great deal more feed, the gains made costing 11.51 and 11.37 cts. per 

 pound, respectively. Financially, therefore, the results were very similar, 

 though the steers fed alfalfa showed a little better finish than those fed straw. 



An experiment was conducted to determine whether the addition of a high- 

 protein feed, such as cottonseed meal, to the ration of steers receiving a low- 

 protein, bulky ration would prove beneficial. One group was fed oat straw, corn 

 silage, and meal from mixed home-grown grains, and a second group was fed 

 the same bulky feed and the same kind and amount of mixed meal, with the 

 addition of a small allowance of cottonseed meal constituting 20 per cent of 

 the mixture. The group fed cottonseed meal made an average daily gain per 

 steer of 1.58 lbs., and the other group, 1.54 lbs., but it is concluded that the 

 feeding of cottonseed meal was not profitable. 



Five lots of weanling pigs were fed as follows: Lots 1 and 2, commercial 

 brands of tankage, with grain and water ; lot 3, beef meal, grain, and water ; lot 

 4, grain and water ; and lot 5, skim milk and meal. These pigs made average 

 daily gains per pig of 1.01, 1.06, 0.93, 1.01, and 1.09 lbs., costing per pound of 

 gain, 4.33, 4.1, 4.48, 3.61, and 5 cts. for the respective lots. 



78786°— No. 3—17 6 



