CHAPTER VI. 



INFLUENCE OF FEED OHf THE ANIMAL BODY. 



I. Influence of Feed on the Growing Body of the Pig. 



107. Sanborn's findings. In 1884, Sanborn, of the Missouri 

 Agricultural College, 1 observed more lean and less fat in the 

 bodies of pigs fed ship-stuff (middlings) than in those of pigs fed 

 corn meal. He wrote: " Does a food rich in carbohydrates and 

 fat tend to produce an increased proportion of fat to flesh? . . . 

 I have heretofore observed that a pig fed on ship-stuff (mid- 

 dlings), versus corn, gave an apparently better muscular develop- 

 ment from ship-stuff. . , . Experience convinces me that 

 the exclusive use of corn meal for a feeding ration is detrimental 

 to a vigorous and healthy muscular development, producing a 

 pig easily subject to disease, distasteful to our consumers, and 

 more costly than is ^necessary. " In later bulletins 2 this investi- 

 gator reports studies in which pigs were fed dried blood and corn 

 meal in opposition to corn meal only. The weights of various 

 internal organs were ascertained, and the fat and lean of the car- 

 casses separated by the knife, and weighed. The data thus 

 obtained confirmed the original statement. Marked differences 

 in the relative size of some of the internal organs were also 

 reported. 



108. Studies at other Stations. Eecognizing the great impor- 

 tance of this line of study from the scientific standpoint, and its 

 significance to the breeder of swine, to the farmer interested in 

 pig feeding, and to the consumer of pork products as well, the 

 writer conducted several trials in the same line as Sanborn's, at 

 the Wisconsin Station. 3 In these trials dried blood, (338) mid- 



1 Bui. 10. 



* Buls. 14, 19, Mo. Agrl. Col. 



* Repts. 1886, '87, '88, '89. 



