12 BULLETIN 632, U. S. DEPARTMENT OF AGRICULTURE. 



what lower than cottonseed meal. Since the tomato-seed meal which 

 was subjected to analysis Avas from ether-extracted seeds, the ether 

 extract does not enter into consideration. The meal from seed ex- 

 pressed b} 7 hydraulic pressure would contain from 5 to 7 per cent 

 ether extract, which represents the residual fat left in the cake. 

 The crude-fiber content is relatively high as compared with the other 

 feeds, being lower, however, than that of palm-nut cake. The content 

 of nitrogen-free extract, consisting largely of carbohydrates, is higher 

 than in such meals as cottonseed, sunflower, and sesame, and lower 

 than in palm-nut, rape-seed, and linseed cake. 



From the results of the analysis and the comparison with standard 

 stock feeds it would appear that tomato-seed meal possesses proper- 

 ties of considerable value for stock feeding. In this connection it 

 may be stated that in Italy, where the utilization of tomato residues 

 is in practical operation, experiments with the meal or cake have 

 demonstrated its value as a feed for stock. Aguet (2) has reported 

 a factory in operation at San Giovanni a Teduccio, near Naples, for 

 the industrial manufacture of tomato seedcake. Feeding trials con- 

 ducted at the Royal Higher School of Agriculture at Portici with 

 milch cows showed tomato seedcake to be equal in food value to lin- 

 seed cake. Later, Scarpitti (IS) conducted extensive investigations 

 with the seedcake as a feed for milch cows, stating that it is richer 

 than flaxseed cake in protein and fat and is superior to it in its 

 influence upon the weight and lacteal secretion of the cows. 



Shriver (14, p. 21-23) describes the manufacture of stock feed 

 from the dried tomato waste after the extraction of the oil. A num- 

 ber of grades of stock feed under the name " Nutritivo " are manu- 

 factured by a firm at Milan, Italy, from the dried skins mixed with 

 molasses and the meal from the extracted seeds. This feed for 

 cattle is sold at prices ranging, according to quality, from $1.32 

 to $1.49 per 100 pounds. The seedcake after the oil is expressed is 

 sold at $1.32 per 100 pounds. 



AVAILABLE QUANTITY OF THE MEAL. 



After extracting the oil from the estimated quantity of tomato 

 Feeds which accumulate annually, there would remain as a by-product 

 about 1.200 tons of the meal. In addition to this large quantity 

 of meal there would also be available about 1,800 tons of tomato skins. 

 In view of the use to which the dried skins are applied in Italy 

 by incorporating them with the meal, this would increase the total 

 available quantity to about 3,000 tons. 



SUMMARY. 



The foregoing investigation shows that the vast quantities of to- 

 mato refuse accumulating each year at tomato-pulping factories can 



