FEEDS FOR SWINE 653 



menhaden herring caught off the Atlantic coast. A total of 145 pigs, 

 averaging 77 Ibs. in initial weight were fed for an average of 80 days in 

 these trials. 



Fish meal vs. tankage as supplement to corn for pigs* 



bs. gair 

 meal 01 



Daily Fish meal or 



Average ration gain Corn tankage 



Lbs. Lbs. Lbs 



Lotl, Fish meal, 0.48 lb. Corn, 5.7 Ibs 1.58 370 33 



Lot II, Tankage, 0.49 lb. Corn, 5.6 Ibs 1. 42 403 37 



*Hostetler, N. C. Station (Information to the authors) ; r Morrison and Bohstedt. Wis. Station (Un- 

 published data) ; Robison (Ohio Bui. 349) ; Starkey, S. C. Station (Information to the authors) ; Vestal, 

 Ind. Station (Information to the authors); Wilson and Kuhlman (S. D. Bui. 192); Ala. and Tenn. 

 Stations (Data from U. S. D. A.). 



In 10 out of the 11 trials fish meal produced larger and more economi- 

 cal gains than tankage. On the average the pigs fed fish meal gained 

 1.58 Ibs. a head daily and required only 370 Ibs. corn and 33 Ibs. fish meal 

 for 100 Ibs. gain, while those fed tankage gained 1.42 Ibs. and consumed 

 403 Ibs. corn and 37 Ibs. tankage for each 100 Ibs. gain. In the majority 

 of other trials in which fish meal has been compared with tankage in 

 various rations, it has also proven superior, 85 but in a few instances 

 tankage has been the more valuable. 86 



969. Wheat middlings, or shorts. Standard wheat middlings, or shorts, 

 are one of the most popular feeds for all classes of swine. Middlings 

 are fairly high in protein and are rich in phosphorus, but are low in 

 calcium. The proteins in middlings do not supplement the proteins of the 

 grains very efficiently. Probably for this reason, pigs not on pasture, 

 especially those which are young, do not make as good gains on only grain 

 and middlings as when they are fed in addition a limited amount of some 

 feed of animal origin, such as tankage or dairy by-products. If no animal 

 feeds are available, then it is wise to include choice legume hay in the 

 ration, as this will help overcome the deficiencies of the grain and mid- 

 lings ration. As middlings contain only about 13 per ct. digestible crude 

 protein, a much larger proportion is needed to balance the ration than 

 with tankage or even linseed meal. 



The following table summarizes the results of 6 trials in which standard 

 middlings or shorts have been compared with tankage as the only sup- 

 plement to corn for pigs not on pasture, which weighed 90 Ibs. or over 

 when placed on feed. In these trials 92 pigs, averaging 119 Ibs. in 

 weight were fed for 72 days on the average. 



Standard middlings vs. tankage as a supplement to corn 



Daily Feed for 100 Ibs. gain 

 gain Corn Supplement 



Average ration Lbs. Lbs. Lbs. 



Lot I, * Middlings, 2.64 Ibs. Corn, 3.35 Ibs 1 . 33 266 201 



Lot II, * Tankage, 0.66 lb. Corn, 5.80 Ibs 1 . 56 376 42 



*Average of trials by Carmichael (Ohio Bui. 209); Erf and Wheeler (Kan. Bui. 192); Forbes (Ohio 

 Bui. 213); Loeffel, Nebr. Station, (Information to the authors); Skinner and Cochel (Ind. Bui. 137); 

 and Snyder (Nebr. Bui. 147). 



"Ashbrook, U. S. D. A. Bui. 610; Loeffel, Nebr. Station, information to the 

 authors ; Weaver, Mo. Station, information to the authors. 



M Evvard, Iowa Station, information to the authors; Thompson, Cal. Rpt. 

 1918-19. 



