567 



Haiious; ijicld of milk; <jain or lofia in Hce ivc'xjht; financial results. 



Periods. 



Quiiiitities per head per day added to basal ration : 



reaiiut meal pounds. 



Bailey meal do. . . 



Digestilile nutrients in total food: 

 Per Lead per day — 



Protein do. - • 



Fats do... 



Carbohydrates do. . . 



Per 1,000 pounds live weifjht per day- 

 Protein do. . . 



Tats do. . . 



Carbohydrates do. .. 



Nutrili ve ratios 



Potential enerjry in digestible nutrients per 1,000 pounds 



live weight per day Calori(-s . 



Milk yiebl per head per day pounds . . 1 



Gain ( + ) or loss ( — ) in live weight ])er head per day do 1 



Financial gain per head per day cents. . I 



For more convenient comparison of the experiments upon narrow vs. 

 wide rations, the i)rincipal statistics are recapitulated in the accomi)any- 

 ing table: 



Kecuiritulation of results of experivients with cows on effects of narrow vs. wide rations 



upon milk production. 



Series. 



Karrow 

 rations. 



Wide 

 rations. 



Feeding 

 periods. 



I and V 

 II and IV 



m 



I and V 



rr and IV 



III 



I I and V 

 i n and IV 

 I ni 



I and V 

 I II and IV 



i III 

 i I and V 

 II and IV 



• ni 



3 



'S bo 



(E fl S 



> a ? 



^ * © 

 <1 



Pounds. 

 1,375 



1,100 



1,100 



1,375 



1,100 



t- ? s- ! 



S ft 



+ 



■So £ 

 O 



•r <S I r3 ?? 



"Lr 



Pounds. 

 +0.26 

 +1.19 

 -0.28 

 +1.44 

 +0.41 

 +0.48 



+1.16 

 -0.51 

 -1.37 

 +2. 57 

 —0.03 

 —0.55 

 -0.49 

 +0.92 

 +4.16 



Welti's standard for 1,000 pounds live weight. 



Pounds. 

 52.1 

 52.0 

 52.6 

 25.0 

 25.4 

 27.3 



33.0 

 32.4 

 33.4 

 42.1 

 42. 5 

 41.7 

 33.1 

 34.4 

 35.5 



Nutritive ingredients and yield of milk 

 per 1,000 pounds live weight per day. 



Digestible 

 nutrients. 



Pro- 

 tein. 



Cents.\Pounds, 



28.6 

 28.5 

 29.5 

 5.4 

 6.6 

 "8.3 



13.2 

 12.7 

 10.8 

 18.3 

 16.3 

 16.0 

 15.2 

 13.7 

 12.9 



2.3 

 2.7 

 3.2 

 3.0 

 3.4 

 4.1 



2.9 

 3.1 

 3.1 



2.3 

 2.3 

 2.4 

 2.6 

 2.6 

 2.7 

 2.5 



Ifon- -E OS 

 tem.a "^ 



Pounds. 1: 

 11.2 4.9 



11.2 14.2 



11.3 ;3.6 



14.7 5.0 

 15.0 |4.4 

 15.2 !3.8 



4.0 

 4.2 



4.5 



4.8 



5.5 



5.6 



i4.6 



2 |5.1 



8 '5.5 



4 l5.4 



Potential 



energy in 

 digestible 

 nutrients. 



Calories. 

 27, 815 

 28, 800 

 30, 075 

 36, 450 

 37, 970 

 39, 690 



30, 050 

 32, 600 

 35, 260 

 27, 850 

 30, 080 

 32, 865 

 30, 260 

 32, 670 

 36, 040 

 29, 740 



Milk 

 jneld. 



Pounds. 

 41.7 

 41.6 

 42.1 

 22.7 

 23.1 

 24.8 



30.0 

 29.5 

 30.4 

 33.7 

 34.0 

 33.4 

 30.9 

 31.3 

 32.3 



a Fats and carbohydrates together, t. e. carbohydrates + (fats X 2.25). 



Several general features of the experiments are here brought into 

 clear relief. In the first place the quantities are liberal. Wolfi's stand- 

 ard calls for 2.5 pounds of protein and 29,740 Calories per 1,000 pounds 

 live weight. Kiihn* gives the following quantities of digestible nutrients 

 as appropriate for milch cows per 1,000 pounds live weight: 



Pounds. 



Albiimiuoids, i. e. protein free from amides, etc 1. 5- 2. 4 



Fats 0.4- 0.7 



Carbohydrates 12. 0-14. 



*Julius Kiihn, Zweckmassigste Ernahrung des Eindviehs, tenth edition, 1891, p. 561, 



