ANIMAL PRODUCTION. 267 



in weight was not large. Pigs weigliing 73.12 lbs. per head on straight alfalfa 

 pasture appeared to make some growth, but at the end of the test their actual 

 weight was less than at the beginning. It is concluded that matured hogs seem to 

 hold their condition very well when on alfalfa pasture, but a young, growing 

 pig will not thrive without some grain in addition to the alfalfa pasture. 



In an effort to work out a maintenance ration of chopped barley and alfalfa 

 hay for brood sows two sows were started on a daily ration of 5 lbs. of barley 

 and 2 lbs. of alfalfa hay. At the end of each week they were weighed. If it was 

 found that they had gained in weight their rations were reduced, and if they lost 

 their rations were increased. So^v No. 1 lost, in 13 weeks, 17 lbs. on a daily 

 ration of 2.12 lbs. of chopped barley and 0.61 lb. of alfalfa hay for each 100 lbs. 

 of live weight, Avhile sow No. 2 gained 33 lbs. on a ration of 1.48 lbs. of barley 

 and 0.5S lbs. of alfalfa hay for each 100 lbs. of live weight. In a second experi- 

 ment with three sows it was found that the nearest to a maintenance ration 

 was that in which 1.27 lbs. of barley and 2.55 lbs. of sugar beets per 100 lbs. of 

 live weight were fed. When a wheat and alfalfa hay ration was fed, two sows 

 made a considerable gain in weight, while one sow lost 7 lbs. during the test. 

 Rye as a winter feed for brood sows produced very desirable results as a main- 

 tenance ration, one sow making a gain in weight in 13 weeks of 93 lbs. on a ration 

 of 1.88 lbs. of rye per 100 lbs. of live weight. 



From a general summary of these tests in feeding brood sows it is thought that 

 the ration of barley and alfalfa hay is the most desirable. It appears that 1.78 

 lbs. of barley and 0.59 lb. of alfalfa hay per 100 lbs. of live weight makes a very 

 good maintenance ration for a brood sow during the winter. It is thought that 

 by careful feeding, the alfalfa portion of the ration might be increased and the 

 grain portion decreased and still produce equally good results. 



A detailed plan for a 40-acre hog farm is outlined, it being estimated that 

 approximately $800 for profit and wages of the man in charge could be realized. 



Establishing- the swine industry on the North Platte reclamation project, 

 C. S. Jones {U. S. Dept. Agr., Bur. Plant Indus., Establishing the Swine Indus- 

 try on the North Platte Reclamatimi Project, 1915, pp. 26, figs. 5). — A general 

 description of the North Platte reclamation project, embracing about 100.000 

 acres of irrigable land in Nebraska and Wyoming, with a discussion of the 

 adaptability for and extent of the swine industry on the project, including an 

 introduction by F. D. Farrell. 



Information has been collected relative to the various methods of management 

 in operation. 



Hog cholera has made its appearance on the project, most of the outbreaks 

 occurring in July, August, September, and October. It is thought that the 

 large number of outbreaks during these months was due chiefly to the relatively 

 high temperatui-es and to the greater use of irrigation water during that period. 

 It was definitely ascertained during the summer that about 36 per cent of 

 the outbreaks resulted from infection carried by irrigation water. Losses of 

 hogs that were treated for cholera averaged from 6.2 per cent in November 

 to 21.7 per cent in August. The mortality resulting was much higher in young 

 pigs than in mature hogs, averaging with pigs weighing less than 15 lbs. about 

 95 per cent; with shoats weighing from 15 to 125 lbs. about 85 per cent; and 

 with mature hogs about 25 per cent. The physical condition of the hogs was 

 found to be an important factor in reducing the mortality of treated hogs. 



Marketing the 1915 hog crop, W. H. Peters (North Dakota Sta. Circ. 9 

 (1915), pp. 14. figs. 9). — This circular treats of the status of the hog industry 

 in North Dakota and gives directions for the feeding, care, and management 

 of the breeding herd and the fattening of hogs for market. 



