PRODUCING MAHKET MILK IN EASTERN NEBRASKA. 9 



FACTORS INVOLVED IN THE PRODUCTION OF MILK. 



FEED. 



Concentrates, in the meaning of this study, are grains and their 

 by-products prepared for feeding. 



Home-grown grains are concentrates grown on the farm or in the 

 locahty where fed. 



Dry roughage includes various hays and other bulky feeds. Dry 

 roughage is subdivided into the three following classes : 



Noncommercial dry roughage applies to coarse feeds, such as corn 

 stover and velvet-grass hay, for which price quotations are not given 



i'lG 2.— Darii aud ^iioa uu uui- uf the farms '.studied. 



in the trade papers. Hay or other dry roughage so foul with weeds 

 or so damaged in curing as not to be readily salable is also classified 

 under this heading. 



Commercial legume hag includes alfalfa, clover, cowpea, soy-bean, 

 and other marketable legume hays, when pure, or when so slightly 

 mixed with grasses as not materially to affect the protein content. 



Commercial carhohydrate hay refers to all marketable hays except 

 those classified as legume hay. 



Succident roughage consists of mangels, potatoes, silage, and soiling 

 crops. 



The quantities of the various feeds used were obtained from actual 

 weights made by the field agent on his regular monthly visit to each 

 farm. 



