570 



EXPEEIMENT STATION RECORD. 



No. 7, pp. 281-288) .—Nine pigs 5 months of age were divided into three groups 

 and fed for 15 wt^elis a basal ration of ground barley, potato flakes, and fish 

 meal. Group 1 received on an average 4.8 kg. per head per day of sour skim 

 milk as a supplementary ration, made an average daily gain per head of 0.574 

 kg., and dressed 81.3 per cent of the live weight. Group 2 received 4.8 kg. per 

 day of sweet skim milk, made a corresponding gain of 0.584 kg., and dressed 

 84 per cent. Group 3 received 3 kg. of sweet skim milk per head per day. made 

 a corresponding gain of 0.573 kg., and dressed 82 per cent. 



Samples of fat taken from carcasses of the three groups gave the following 

 averages: Group 1, water content 6.68 per cent, melting temperature at 0° C, 

 46.7, refractometer reading at 40°, 49, and iodin number, 52.9; group 2, water 

 content 6.58 per cent melting temperature 46, refractometer reading 49, and 

 iodin number 53.3 ; and group 3, water content 7.46 per cent, melting tempera- 

 ture 45.2, refractometer reading 49.2, and iodin number 55. 



Fattening trials with, hogs, J. H. Shepperd and W. B. Richards (North 

 Dakota 8ta. Bui. 8h jrp. 5-2.'t, figs. i3).— Experiments are reported in which 

 barley and low-grade wheat are contrasted with corn as feeds for fattening 

 hogs. The results are shown in the following table : 



Comparison of barley, ground rejected wheat, and ground corn in fattening hogs. 



On comparing the carcasses the barley-fed lot was found to have less fat 

 but a larger proportion of muscular tissue than the corn-fed lot ; they were 

 larger bodied and more of the bacon type. The Yorkshire-Berkshire cross 

 had a better distribution of lean and fat than the Yorkshire-Poland China 

 cross. There was a greater depth of fat on the backs and ribs of the pure- 

 bred Chester White than on the various crosses with the Yorkshires. 



Pastures for hogs, P. G. King (Missouri Bd. Agr. Mo. Bui., 7 (1909), No. 5, 

 pp. 39, figs. 6). — This bulletin gives general information on pasture crops for 

 hog raising in Missouri. The crops recommended are bluegrass, clover, alfalfa, 

 cowpeas, rape, oats, sorghum, pumpkins, soy beans, artichokes, rye, and wheat. 



On the signifi^cance of amid substances in animal nutrition, W. Yoltz 

 (Landiv. Jahrh., 38 (1909), Ergdnzungsh. 5, pp. .433--J//8). — ^This is a review and 

 discussion of recent work on this subject. 



Preliminary note on the action of yohimbine on the generative system, 

 W. Cbamer and F, H. A. Marshall (Jour. Econ. Biol., 3 (1908), No. Jf, irp. 127, 

 128). — When 0.005 gm. of yohimbine in the form of tablets was administered 

 twice daily for 2 weeks to dogs results were obtained similar to those secured 

 by other investigators. The same results were obtained with rabbits. Appar- 

 ently the drug by furnishing a riqh supply of blood to the ovaries may arrest 

 the normal process of follicular degeneration, thereby increasing fertility, but 

 there is no evidence that it will induce ovulation in the rabbit. Yohimbine also 

 promoted the develojiment of the mammary glands and the secretion of milk. 



