902 EXPERIMKNT STATION RECORD. 



As an example of the use of tankage a test (•f)verinf? 3 weeks, and made with 2 

 horses weijjhin^ not far from 1,300 lbs. each, may he mentioned, in whicli 2 Ihs. of 

 this material with 4 lbs. of bran, 10 ]l)s. of eorn-and-cob meal, and 80 lbs. of eom 

 silajje was compared with a similar ration in which 15 lbs. f)f clover hay replace<l the 

 (!orn silajre, the relative cost of the 2 rations bcin*; 1S..5 cts. and 23 cts. Uoth rations 

 were considered satisfactory. The same may be said of 2 rations containing dried 

 l)lood which were tested for about a month with 2 mules weighing somewhat nnder 

 1,000 ll)s. each. The first ration was made np of 1 ]b. of dried blood, 25 lbs. of cirn 

 silage, 10 lbs. of corn-and-cob meal, and 4 lbs. of liran, tlic cost being 16.5 cts. The 

 other ration was made up of the same constituents excei)t that 10 ll)s. of clover hay 

 replaceil the corn silage. The cost in this case was 19 cts. 



The author considers that further tests are necessary to demonstrate the extent to 

 wliich dried blood and tankage may be most efficiently fed. 



"Bran was used as a substitute for oats and for corn acceptably and successfully. 

 When it can l)e obtained at a moderate cost it should always find a jjlace in feeding 

 work animals. When corn and oats, though home-grown, are high commercially, 

 it is often economy to sell part of the corn and oats in exchange for bran, providing 

 the latter is not likewise temporarily high in market Value. 



" When the whole ear is ground, making what is termed here corn-and-cob meal, 

 the same efficiency in work and maintenance of weight in horses and mules follows 

 as where an equal quantity of shelled corn is fed. When corn on the ear was com- 

 pared with an equal (juantity of corn ground, the col) included in the latter, the 

 difference was in the favor of the corn-and-cob meal, when corn stover was used as a 

 roughage. When clover hay was used as a roughago the difference is not sufficient 

 to note. Whether corn shall be ground or not will de])end on the cost in ialior and 

 trouble in jjerforming the operation. 



"When wheat and cowpeas were compared as a part of the grain ration, cowi)eas 

 were equal to wheat, or slightly better. The cost of production and (-ommercial 

 value must always l)e considered when either is to be fed in connection with or as a 

 substitute for other concentrates. Cowpeas are a satisfactory substitute for oat« in 

 feeding farm horses and mules." 



In one of the tests cowpeas were compared with oats, 4 lbs. of each of these 

 feeds being added to a basal ration of 4 lbs. ground wheat, 4 lbs. corn-and-cob 

 meal, and 14 lbs. meadow hay, the cost of the oat ration being 24.4 cts. and of the 

 cowpea ration, 20.4 cts. In the 2 weeks of the test the 2 horses, which weighed at 

 the beginning not far from 1,100 lbs. each, gained a little in weight. 



"Various kinds of feeding stuffs can be used to advantage and with economy in 

 feeding farm horses and mules. There is no so-called ' one ration for horses.' A 

 mixture of corn and l)ran, or of corn and cowpeas, or of corn, bran, and cotton- 

 seed meal, is a good substitute for corn and oats in feeding work animals. Any 

 feeding stuff or combination of feeding stuffs that furnishes the necessary and 

 desiral)le nutrients at least cost should be the im])ortant consideration in the prepa- 

 ration of rations for farm horses and nmles." 



Poultry experiments, J. H. Stewart and H. Atwood ( Wrd Virghi'ui Sla. Bui. 

 SS, pp. 147-16^, pi. 1). — The effect of feeding ground and moistened grain and also 

 of light and heavy rations on egg production and egg fertility was studied. The 

 first test was begun December 1, 1902, with 3 lots eacli containing 20 single-comb 

 White Leghorn pullets and 2 cockerels and covered 240 days. All the lots were fed 

 practically the same amount of grain (corn, wheat, and oats) and beef scrap, lot 1 

 being given ground grain and lot 3 whole grain only, while in the case of lot 2 

 one-third of the grain ration was ground and two-thirds fed whole. The total grain 

 eaten per lot was approximately 1,000 lbs., and the total heel scrap 64 lbs., all the 

 birds gaining somewhat in weight. 



The total egg production in the case of lot 1 (ground grain) was 1,817 eggs, with 

 lot 2 (ground and unground grain) 1,804 eggs, and with lot 3 (whole grain), 1,657 



