584 EXPERIMENT STATION RECORD. 



Cowpea hay for swine, F. C. Burtis {Oklahoma Sta. Rpi. 1901, pp. 108-111). — 

 Two tests on the value of cowpea hay for pigs are reported. The first was made 

 with 2 lots of 4 pigs each, about 8 months old. Both lots were fed in pens, receiving 

 a grain ration of corn meal and Kafir corn meal, 1 : 1. In addition, lot 1 was fed 

 cowpea hay. In the 10 weeks of the test the average daily gain in the 2 lots was 

 1.09 and 0.43 lbs., the grain eaten per pound of gain being 4.46 and 6.95 lbs., respec- 

 tively. The amount of cowpea hay eaten by lot 1 averaged 2.18 lbs. per pound of 

 gain. The author notes that at the close of the test lot 1 was in a fairly marketable 

 condition while the condition of lot 2 was not so satisfactory. 



The second test was made with 2 lots of pigs each about 4 months old. They 

 were fed the same rations and under the same conditions as in the preceding test. 

 The average daily gain per pig in the 2 lots was 0.46 and 0.24 lb., respectively, the 

 grain eaten per jDound of gain being 7.1 and 9.8 lbs., respectively. In addition to 

 grain, the pigs in lot 1 ate 1.87 lbs. cowpea hay per pound of gain. In this test also, 

 the l)est results were obtained with the ration containing cowpea hay. 



Pig farming- on the paddock system, W. H. Clarke [Agr. Gaz. Neiv South 

 Wales, 11 {1900) , Nos. 9, pp. 788-792, pi. 1; 11, pp. 993-1000).— Raimig pigs by grazing 

 them on a succession of crops is discussed with reference to local conditions. 



The value of barley and pumpkins as horse feed {Queensland Agr. Jour., 9 

 {1901), No. 2, p. 187). — The value of barley and pumpkins is pointed out in a brief 

 note. The latter were found to be especially useful for horses affected with ' ' old 

 man asthma " due to eating corn and chaff. 



Improvement of the breeds of horses {Bui. Agr. \^Brussels'\, 17 {1901), No. 4, 

 pp. 416-46.5). — A circular sent to the governors of the different provinces of Belgium 

 regarding an effort to improve breeds of horses. 



Points on producing draft horses, W. J. Kennedy {Farm Students' Rev., 6 

 {1901), No. 10, pp. 150,151). — Desirable qualities are pointed out and discussed. 



Farm poultry keeping {Oklahoma Sta. Rpt. 1901, pp. 63-85). — This is practi- 

 cally a reprint of Farmers' Bulletin No. 41 of this Department (E. S. R., 8, p. 428). 



Concerning the iron content of hens' eggs and experiments on the in- 

 crease of iron in the egg when haemogallol and ferrohsemol are fed, P. 

 Hoffmann {Ztschr. Anahjt. ('hem., 40 {1901), No. 7, pp. 450-459, dgm. 1). — When 

 hjemogallol and ferroh;emol were fed to hens, the iron content of the eggs produced 

 was increased, the former having more effect than the latter, although it contains 

 less iron. The effect w^as influenced by outside conditions, for instance, by the diet. 

 When cuprohsemol was fed no copper was found in the eggs. 



DAIRY FARMING— DAIRYING. 



Feeding trials with cows, J. L. Hills ( Vermont Sta. Rpt. 1900, pp. 391-44^, 

 461-502, fig. 1) . — Extensive feeding experiments including 48 cows and lasting 28 

 weeks, in part a continuation of previous work (E. S. R., 12, p. 283), are reported in 

 detail and summarized at some length. The different experiments included from 3 

 to 11 cows, and covered periods of 4 weeks each. 



An experiment wa-s conducted to determine how much grain may be fed with 

 profit. "Four, eight, and twelve pounds of 3 different grain rations were fed at dif- 

 ferent times with hay and silage to 11 cows, each animal being kept throughout the 

 experiment upon the same grain ration, so far as character is concerned, but a differ- 

 ent one as regards its amount. The outcome was essentially as follows: Quantity. — 

 The more grain, the more milk, total solids, and fat. Quality. — Only slight changes 

 were observed as a result of variation in amounts of grain fed. Such alterations as 

 occurred were in. the general direction of better milk on medium than on either low 

 or high feeding. Economy of production. — A pound of dry matter produced more on 

 the low than on either the medium or high grain feeding. There was l)ut little differ- 

 ence in this respect between the medium and the high ration. Live weight. — Increased 



