XL -THE xiRTIFIClAL FEEDING OF CARP/ 



By Carl Nicklas. 



The rational feeding: of earp, and in fact of all tisli, is ijo.ssible only 

 when, like the feeding- of domestic land animals, it rests on a scientific 

 basis; and when, in accordance with such scientific j^rinciples, the 

 various nutritive matters are given to the carp in such proper propor- 

 tion as its nature demands. 



Starting from this point of view, I made an attempt as early as 1879, 

 in my textbook of Pond culture.t to establish a proper rule for feeding 

 carp, and have reached the conclusion that the most rational one is to 

 reckon to each 1,000 pounds of live carp pounds of dry substance, 

 containing 4 i)ounds of albumen, 2 pounds of hydrate of carbon, inclusive 

 of fat, which would make the proportion of nutritive matter 20 to 1. 



The i)roportion of nutritive matter is exceedingly close in itself, and 

 still more so if compared with the food standard of land animals; and 

 the demand for hydrate of carbon is consequently very small. 



The quantity corresponds to the demand for food by 1,000 j)ound8 of 

 live hogs, if the greatest possible quantity of flesh and fat is to be pro- 

 duced. I was of opinion that 1 mast make the standard quantity of 

 albumen the same as that demanded by the hog, and I did this for the 

 purpose of not making it too low, remembering the fact that the hog is 

 the most voracious of our domestic animals, requiring more food in ]>to- 

 l>ortion than any other, and that the rapidity of its growth resembles 

 that of the carp. 



The proportion of nutritive matter, and the demand for hydrates of 

 carbon, is based on calculations made with data obtained from careful 

 observations made by Miller and Bausiguault, a-; to the quantity of car- 

 bon received in the body and exhaled from it, and on practical feed- 

 ing experiments made on a full grown sheep at the agricultural station 

 of Wende.| 



According to Miller the following quantities of carbon were exhaled 



* KUna'licJie Fiitterung dcr Earpfev. Voni Giiler-Ivspeclor Carl 2\'ick1a8. From 

 "Deutsche Fincherei Zeltmig," Vol. V, Nos. 36, 38, 40, 43, 45, Stettin, Scptcml)or 5 and 

 19, October 3 and 24, and November?, 1882. — Translated from the German by Heuman 

 Jacobson. 



+ Lehrbnch de7- Ttichivirthschaft, pp. 201-225. 



tDr. E. Wolff: " FUUeriing der landivirthschaftUchen Xutzfhiire," 1874, p. 35. 

 S. Mis. 4G G4 1009 



