74 EXPERIMElirT STATION RECORD. IVol, 41 



Three sows fed corn, shorts, and tankage produced 1 dead pig and 21 living 

 ones, all still alive at weaning, 60 days afterwards. 



Study of the effect of protein and ash supplements to corn in the fattening 

 ration was made with 66 Duroc-Jersey pigs weighing at the start about 54 

 lbs. a head and divided into lots of 6 each. The feeding methods are judged 

 largely by the time necessary for the pigs to gain 150 lbs. Seven lots were 

 fed on alfalfa pasture, and 4 in dry lots. Of the former, the 3 lots in which 

 corn was the only concentrate took longest (104 to 107 days) to attain the 

 desired weight. Additional ash had no apparent influence. The most rapid 

 gains (97 day.s) were made by a lot in which 6 per cent of the concentrate 

 was tankage and which had access to extra mineral nutrients. A lot in 

 which shorts and tankage (4:1) formed 20 per cent of the grain ration gained 

 150 lbs. per head in 99 days. Two self-fed lots, one with corn, shorts, and 

 tankage and the other with corn, tankage, and additional ash, required 100 

 and 101 days, respectively. Three of the lots not on pasture received shorts 

 and tankage (4: IX as supplement to corn. A feeding period of 112 days was 

 required for two whose grain rations were 70 and 60 per cent corn, respectively, 

 and a period of 105 days for the other in whose ration the proportion of corn 

 was gradually changed from 40 to 80 per cent. The fourth lot not on pasture 

 had free choice of corn, shorts, and tankage and needed 104 days' feeding. 

 Shorts and tankage were consumed approximately in the proportion of 8 : 1 

 and formed about 30 per cent of the ration. 



Feeding value of skim milk for swine, H. W. Norton, jr. (Michigan Sta. 

 Spec. Bui. 92 {1918), pp. 9). — This is an amplification of an earlier study (E. S. 

 R., 40, p. 75) of the combined results of numerous swine feeding trials at 

 various experiment stations. It is computed that a pound of any of the fol- 

 lowing-named supplements would replace the designated amount of grain : 

 Skim milk 0.28 lb., tankage 2.53 lbs., middlings 1.05 lbs., linseed meal 2.62 lbs., 

 and soy-bean meal 3 lbs. A table gives the change in money value for swine 

 feeding of skim milk as the prices of the other supplements vary. Buttermilk 

 is considered to be equal in feeding value to skim milk, and whey about half as 

 efficient. 



An experiment comparing velvet bean meal, tankage, and soy bean meal 

 as supplements to corn meal in feeding hogs, E. S. Good and L. B. Mann 

 (Kcntuclcij Sta. Circ. 20 (1918), pp. 4)- — A lot of 8 Duroc-Jersey and Berkshire 

 shotes. each weighing originally about 125 lbs., was fed on corn meal and velvet 

 beau-and-hull meal (5:1), another on corn meal and tankage (9:1), and a 

 third on corn meal and soy bean meal (7:1), for 89 days. The average daily 

 gains were, respectively, 0.8, 1.52, and 1.42 lbs. per pig, and the corresponding 

 amounts of feed consumed per pound of gain were 6.5, 4.2, and 4.5 lbs. Al- 

 though the velvet beans were much cheaper than tankage or soy beans, they were 

 fed at a distinct loss. The velvet bean ration had a wider nutritive ratio tlian 

 the others, but it was impracticable to increase the proportion of velvet beans 

 since the mixture as it stood was unpalatable, due presumably to the high crude 

 fiber content. It is suggested that a velvet bean meal made from the kernels 

 only would be a more useful feeding stuff to place on the market. The value 

 of soy beans as a supplement to corn is pointed out, and analyses of velvet 

 bean meal and tankage are reported. 



Inheritance investigations in swine (Ka)isas Sta. Rpt. 1918, pp. 4^, ^5). — 

 The following results are claimed from cross breeding experiments with swine, 

 the details not being given: (1) Wide forehead (Berkshire) dominant to me- 

 dium forehead (Duroc-Jersey) and to narrow forehead (Tamworth, wild hog), 

 (2) straight face (Tamworth, wild hog) dominant to dish (Berkshire), (3) 



