FOODS ANIMAL PRODUCTION. 325 



Anahjsts of lard diid .sheep suet from animals fed on corn and on cotton-seed meal. 



Lard. 



From pigs fed ou cottonseed meal. . 



lioiiglit in market 



From i)ig.s fed on corn 



Shee2J ixiet. 



From .sheep fed on cotton seed meal: 



Kidney fat 



Caul fat 



Body fat 



From sheep fed on corn meal: 



Kidney fat 



Caol tat 



Body fat 



Boechi's test. 



Very dark. 

 -None. 

 Do. 



Black. 



Dark brown. 

 Black. 



Xone. 

 Do. 

 Do. 



"The melting point of the lard from cotton-seed meal is notably higher than either 

 of the other melting points, while the test with nitrate of siher \yas also quite dis- 

 tinct. The volatile acids in normal lard are so small that hardly any ditierence could 

 be expected in them. There is also nothing distinctive in the iodin absorption. . , . 



"The melting points of the kidney fat in the 2 sheep show a difference of a 

 little more than 4^, while the iodin absorption of the body fat shows a variation of 

 more than 11<^. It could not be expected that Avith the very small amount of vola- 

 tile acid content there would be any variation of importance in these resulting from 

 the 2 feeds. Beechi's test in I case was (|uite distinct, while there was none in the 

 other. 



["The effect of food on mutton suet] is almost as marked as upon butter." 



Effect on heeftaUoiv. — An experiiueiit was made at the station in fat- 

 tening steers on corn meal, cotton-seed meal, or raw, boiled, or parched 

 cotton seed, and the opportunity was embraced to test samples of the 

 fat of each lot taken from the kidney, caul, and body. The usual 

 analyses were made, but all the results, except for the melting point and 

 Beechi's test, flnctnated so widely as to furnish no indication of the 

 effect of the food. The melting point and Beechi's test are given below : 



Melting point and Beechi's test of heef tallow. 



Corn : 



< )no season 



Tvro sea.sons. 



Cotton seed meal: 



One season 



T\yo seasons 



Kaw cotton seed : 



One season 



Two seasons 



Boiled cotton seed: 



One season 



Two seasons. . - - 

 Parched cotton seed: 



One season 



Two seasons . . 



