GROWTH AND FATTENING 



strate clearly the folly of failing to provide properly balanced rations 

 for young, growing animals. 



In 1884 Sanborn of the Missouri Agricultural College 36 conducted 

 studies in which growing pigs fed exclusively on corn meal were com- 

 pared with others fed on corn meal and either wheat middlings or dried 

 blood. The corn-meal ration furnished an abundance of easily digested 

 carbohydrates and fat, but was deficient in crude protein and mineral 

 matter. The addition of dried blood or wheat middlings to corn meal 

 formed a ration rich in crude protein and mineral matter as well as 

 carbohydrates and fat. Sanborn showed that, compared with the corn- 

 fed pigs, those getting rations rich in crude protein had a larger 

 muscular development and more blood, and that some of their internal 

 organs were larger. 



Realizing the fundamental importance of Sanborn 's studies, the senior 

 author conducted numerous trials at the Wisconsin Station 37 in which 

 dried blood, wheat middlings, field peas, and skim milk, with or without 

 corn meal, were fed in opposition to corn meal alone. Shelton of the 

 Kansas Station 38 fed pigs a mixture of wheat shorts and wheat bran in 

 opposition to corn meal, potatoes, and tallow. At the Alabama Station 39 

 Duggar fed cowpeas, which are rich in crude protein, against corn meal. 

 In France Fortier 40 duplicated a trial by the senior author, feeding skim 

 milk, dried blood, and wheat middlings in opposition to corn meal. Thus 

 at five widely separated points pigs were fed rations rich in prptein 

 and mineral matter, usually containing some corn meal, in opposition to 

 corn meal alone, which is rich in carbohydrates and fat but low in crude 

 protein and mineral matter. The following table summarizes the findings 

 of two trials at the Wisconsin and one at the Kansas Station, these being 

 typical of all : 



Effect on pigs of rations rich in protein and ash, compared 

 with corn alone 



38 Kan. Bui. 9. 

 "Ala. Bui. 82. 

 Ext. Trav. Soc. Cent. d'Agr., Dept. Seine-Inf., 1889, 1890. 



36 Mo. Buls. 10, 14, 19. 



37 Wis. Bpts., 1886, '87, >88, '89. 



*0 T?.vf nfvcnr Sr>rt f!f>nf 



