1919] ANIMAL PRODUCTION. 569 



In a later experiment, begun March 7 and continued for 97 days, 6 hogs re- 

 ceiving luiliulled p(>anut oil meal in varied but higlier proportions with corn 

 (1:5, 1:4, and 1:3) produced carcasses which did not harden, although the 

 pork was of good quality and was not oily. Two hogs fed on corn as a check 

 made the lowest gains (0.2 lb. per head per day) while the animals receiving 

 the greatest amount of peanut meal made the best gains (0.7 lb.). It is also 

 noted that 3 hogs fed shelled corn and cooked velvet bean feed (3:1 at start, 

 2: 1 later) made an average daily gain of 0.49 lb. per day during the 85 days of 

 the test. 



Economical substitutes in swine feeding, G. B. Rothwell (Agr. Ga~. Can- 

 ada, 5 (1918), No. 5, pp. U0-U6, figs. 2).— Possible substitutes for the different 

 feeds— corn, barley, wheat by-products, and oats — connnonly fed hogs in Canada 

 are discussed on the basis of experiments at the various Dominion experimental 

 farms. Cottonseed meal, gluten feed, linseed meal, buckwheat screenings, 

 tankage, skim milk, whey, and buttermilk are briefly considered. The economy 

 of pa.sture crops and self-feeders is noted. 



Special mention is made of two recent experiments. At Lacombe, Alta., 

 hogs on rape pasture in 1917 consumed 4.34 lbs. of grain per pound of gain 

 when self-fed, and 4.72 lbs. when hand fed. An acre of rape had a carrying 

 capacity of 9,254 lbs. for 146 days when the hogs were self-fed on grain. The 

 self-feeding, it is estimated, saved 2,453 lbs. of grain per acre. At Ottawa in 

 1917 a lot of pigs fed meal and tankage in a self-feeder gained at the daily 

 rate of 0.53 lb. per head for 66 days, while a similar lot self-fed with meal 

 and skim milk averaged 1.05 lbs. gain during the same number of days. 

 Another lot also receiving meal and skim milk but trough-fed is contrasted with 

 the latter. During 88 days the average daily gain per head was 0.85 lb. 



[Swine feeding experiments in Canada] {Canada Expt. Farms Rpt. 1918, pp. 

 112, iSi*).— Experiments at the Brandon, Man., Experimental Farm are re- 

 ported by W. C. McKillican (p. 112). A lot of 10 pigs fed crushed barley and 

 red dog flour made a total gain of 294 lbs. at a cost of 10.4 cts. per pound. A 

 similar lot given crushed barley and boiled pigweed seed gained 175 lbs. at a 

 cost of 14 cts. per pound. A third lot of 10 receiving all three feeds gained 

 268 lbs. at a cost of 12.5 cts. per pound. 



Five lots of 100-lb. hogs were fed to determine the value of grade A screen- 

 ings as a winter feed. The gains from a lf)t receiving screenings alone cost 

 10.1 cts. per pound. Gains from crushed barley alone cost 20 cts., from red 

 dog and screenings (1:1) 18.7 cts., from shorts and screenings (1:1) 13.8 cts., 

 and from shorts and barley (1:1) 15.4 cts. It is also noted that the gains of 

 20 pigs on pasture cost 6.2 cts. per pound, while 20 similar pigs in dry lot 

 gained at a cost of 7 cts. per pound. No other details of these experiments 

 are given. 



Brief report of the Lacombe, Alta., experiments noted above is made by 

 G. H. Hutton (p. 129). It appears that a lot of pigs self-fed without pasture 

 was also included in the tests. These animals consumed 6.16 lbs. of grain per 

 pound of gain. 



Hogging down rye, W. L. Robison (Mo. Bui. Ohio Sta., 4 {1919), No. 6, pp. 

 179-181). — Experiments at the Miami County experiment farm during the years 

 1914-1916 are reviewed to show that the practice of hogging down rye, in spite 

 of prior arguments in favor of it, results in slow and expensive gains, as the 

 hogs eat little more than a maintenance ration. Details of the tests have been 

 noted from the annual reports of the county experiment farms (E. S. R., 33, 

 p. 871; .86, p. 869; 39, p. 778). 

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