DESCRIPTION OF FEEDING-STUFFS 175 



stance in the crude protein : in the mangel 60% 

 in round numbers, and in the carrot and kohl-rabi 



40%. 



It may be noted that under the same conditions 

 all the varieties of the beet agree in that with in- 

 crease in size of the individual roots the water in- 

 creases and the dry matter decreases. Variety has 

 also an influence upon the weight of individual 

 roots, as have also the soil, the weather, the distance 

 of plants apart, and the manuring. The further 

 the plants are from one another, the heavier the 

 soil, and the richer the manuring with nitrogenous 

 manures, so much larger do the single roots become, 

 and so much less the percentage of dry matter. 

 With an increase in the proportion of water comes 

 an increase in the quantity of crude protein, par- 

 ticularly of non-proteins, in the dry matter, whilst 

 the percentage of sugar decreases. The stripping 

 off of the leaves of beets or mangels increases the 

 percentage of water and also diminishes the crop. 



Mangels are a particularly good food for dairy 

 stock, and can be given to cows in quantities of 

 40-60 Ibs. per head per day. Fattening cattle may 

 have as much as 100 Ibs. per day, whilst young, or 

 working, animals should only get moderate quanti- 

 ties. Pigs, according to their age and weight, may 

 have 4-20 Ibs. 



If sugar beets are used, then a less quantity 

 should be given on account of the larger amount of 



