Swine Growers' Association. 



329 



crop, not to be fed off as forage, the following rotation may be 

 advisable : 



ROTATION NO. 6. 



The crops in bold face are intended to be fed off on the field. 



Wherever rape or clover occurs in these rotations care should 

 be taken not to pasture too closely. Rape should be turned into when 

 twelve to fourteen inches high and should not be pastured off too 

 closely. Leaves are as essential to the health of a plant as lungs 

 are to an animal; and, hence, there should always be present an 

 amount sufficient to produce a maximum of growth. Clover 

 may be turned into when five to eight inches high and should for 

 the same reasons not be fed too closely. 



The number of hogs that may run on each acre will vary, of 

 course, with the abundance of the crop, and the amount of grain 

 supplement that is supplied in addition. Usually, however, where 

 corn is supplied to the extent of one-fourth of a full ration, rape 

 and oats sown together will pasture from twelve to eighteen sev- 

 enty-pound shoats per acre. Clover will generally support per acre 

 two sows and their litters for the season, their litters averaging 

 seven each. 



In order to secure the greatest returns from forage the grain 

 which is to serve as a supplement to it should not be fed in too 

 great quantities. The general rule is to feed from one-fourth to 

 one-half of a full ration. This will ordinarily be from one to 

 two pounds of corn per hundred weight per day. If a pound of 

 corn per hundred weight per day is insufficient to produce some 

 gain with the forage fed, then increase the grain ration. A suffi- 

 cient amount of feed should be supplied to produce about three- 

 fourths of a pound per hundred weight per day increase. 



MONTANA EXPERIMENT STATION. (1908) 



Lot. 



Rations fed. 



Pounds 



grain eaten 



per pig 



per day. 



I. . . 



II. , 

 III. 



Full ration and Alfalfa , 

 Half ration and Alfalfa 

 Full ration and in pen. 



5.81 

 2.91 

 6.23 



