60 MAINE AGRICULTURAL EXPERIMENT STATION. I9OO. 



In addition to determining digestion coefficients, in many 

 cases other problems have been studied such as the relative 

 digestibility of early and late cut hay, of green and dried 

 grasses ; of mature and immature corn fodder and silage ; of 

 fodder and silage from different varieties of corn and of the oat 

 plant in different stages of maturity. 



THE VALUE OF MANURE RESIDUE FROM CORN MEAL AND 

 COTTONSEED MEAL WHEN FED TO SHEEP. 



Results: The amounts of nitrogen, phosphoric acid, and 

 potash in the manure residue stand in direct relation to the 

 amounts of the same ingredients in the food. The urine con- 

 tained nearly one-half the potash of the total excrement, one- 

 half to three-fourths the nitrogen, but no phosphoric acid. 



EXPERIMENTS IN FEEDING STEERS FOR GROWTH. 



( i.) A comparison of the economy of feeding a ration of hay 

 and corn meal with a ration of oat straw, corn meal and cotton- 

 seed meal. Results: The steers fed the oat straw and mixed 

 grain ration made the cheaper growth. The two rations con- 

 tained about the same digestible nutrients and produced about 

 the same amount of growth, the difference being in the cost of 

 the rations. 



(2.) Economy in quantity and composition of the foods 

 used. Ten steers about eighteen months old of uniform 

 size were divided into five pairs and fed five different rations. 

 A, a maintenance ration ; B, a moderate but wide grain ration ; 

 C, a moderate well balanced ration ; D, a liberal well balanced 

 ration ; E, oat straw substituted for hay with moderate, well 

 balanced grain ration. Results: It required nineteen pounds 

 hay to 1,000 pounds live weight to maintain an animal without 

 loss. The cost of producing a pound of growth was least when 

 a liberal well balanced ration was fed. The substitution of 

 nitrogenous foods in the rations greatly diminished the cost of 

 production. 



(3.) A comparison of the feeding value of corn silage with 

 hay. Six steers were used in the experiments. Moderate grain 

 rations were fed. Results: A pound of digestible matter from 



