AN^IMAL PRODUC;riON. 471 



3, 5 to 6 lbs. skim milk per 85 lbs. live weight. The respective average daily 

 gains per head were 0.49, 0.38. and 0.41 lb. ; the cost per pound of gain 4.75, 

 4.05, and 3.81 cts. ; and the returns per acre of alfalfa pasture, $17.56, $16.33, 

 and $18.44. The low i*eturus i)er acre of pasture are attributed to the small 

 number of pigs kept on the area, which would have carried one-half more pigs. 

 Tamworth pigs made an average of 75J lbs. gain per head. Durocs 7I9, and 

 Yorkshires 47. The latter made their best gain on the light grain ration. It 

 is concluded that the greatest profit can be niade by running pigs on alfalfa 

 pasture and feeding from ^ to 1 lb. of grain per 100 lbs. live weight per day. 



Two lots of pigs, one of 13 Tamworths and the other of 21 Durocs, were pas- 

 tui'ed on alfalfa during a 126-day period, receiving supplementary feeds of 

 skim milk, bran, and shorts. The Tamworth pigs gained 7.3 lbs. per head more 

 than the Durocs and made their gains at a cost of 0.3 ct. less per pound, thus 

 indicating that they are a little better suited to grazing on alfalfa pasture and 

 to utilizing a bulky ration. 



Three lots of 12 pigs each, comprising Duroc, Tamworths, Duroc-Tamworths, 

 and Yorkshire-Tamworths were pastured on alfalfa during a 59-day period, 

 receiving supplementary feeds as follows: Lot 1, 4 to 6 lbs. per head per day of 

 skim milk ; lot 2, f to 1 lb. per head per day of ground wheat ; and lot 3, 2^ to 3* 

 lbs. ground wheat and skim milk, about 1 : 6. The average daily gains per head 

 were 0.43, 0.57, and 0.51 lb., respectively ; the returns per acre of alfalfa, 

 $14.03. $19.11, and $17.15. The breeds ranked in gains as follows: Duroc- 

 Tamworth, Tamworth, Duroc. and Yorkshire-Tamworth. Wheat was found to 

 be a satisfactory and economical supplementary feed for alfalfa pasture, and 

 skim milk a fair supplement, but not worth over 17 cts. per hundredweight 

 where the ground wheat is worth $1.32 per hundredweight. It is estimated that 

 8.15 lbs. skim milk are equivalent to 1 lb. ground wheat for supplementary 

 alfalfa pasture. 



Three lots of 9 pigs each were pastured on alfalfa during a 120-day period, receiv- 

 ing supplementary feeds as follows : Lot 1, 4 to 6J lbs. per head per day of skim 

 milk ; lot 2, 2 to 3J lbs. per head per day of skim milk, together with i to f lb. 

 ground milo maize: and lot 3, 2 to 3J lbs. skim milk and 5 to | lb. shorts per 

 head per day. The respective average daily gains per head were 0.25, 0.28, and 

 0.29 lb. ; the cost per pound of gain 4.11, 3.5, and 3.64 cts. ; and the returns per 

 acre of alfalfa $24.35, $28.82. and $27.88. 



The general results indicate that for six months' pasturing, supplemented with 

 a medium ration of concentrated feed, a gain of 782 lbs. per acre may be 

 credited to alfalfa pasture. 



Swine husbandry (Ohio Sta. Bui. 274 (19U), pp. 306, 307).— Two 3-acre 

 plats of 45 bu. per acre corn were " hogged down " with sixty 76-lb. pigs, all the 

 pigs having access to only one plat at a time. In addition to the standing corn, 

 the pigs received 0.3 lb. of tankage daily per pig and some shelled corn at the 

 beginning and close of the experiment. The pigs made an average gain of 1.51 

 lbs. daily per pig during the 42 days required to hog-down the 6 acres, and at 

 6 cts. per pound live weight showed a return of $34.31 per acre for the standing 

 corn. 



Second biennial report of the state board of horse commissioners, W. E. 

 Carroll (Utah Sta. Circ. 17 (1914), PP- 59-74).— This circular reports the dis- 

 tribution of the breeds of licensed stallions and jacks in Utah. The Percheron 

 breed leads with 31.7 per cent. 



British horse breeding, G. T. Burrows (Breeder's Oas., 65 (1914), ^0. 11, 

 p. 592). — At the annual meeting of the Clydesdale Horse Society of the United 

 Kingdom of Great Britain and Ireland it was reported that 837 certificates for 

 60741'— No. 5—14 6 



