1917] 



ANIMAL PRODUCTIOISr. 

 Results in tests of hogging off field pens. 



67 



The pigs in lot 2 were fed, in addition to the peas, rolled barley at the 

 rate of 2 lbs. per 100 lbs. of live weight, or a total of 1,162 lbs. This barley 

 was charged at the rate of $30 per ton. The plat on which lot 4 grazed 

 was sown with a mixture of 80 lbs. of field peas and 20 lbs. of wheat per acre. 



In tests of nitrogenous supplements for barley for pigs during the winter 

 of 1915-16, chopped alfalfa showed a relatively high feeding value. Tankage 

 produced relatively cheap and the largest gains. 



Lam.b and sheep feeding experiments, E. J. Iddings {Idaho Sta. Bui. 89 

 (1916), pp. 3-14, figs. 3). — In continuation of worli already noted (E. S. R., 29, 

 p. 870), results are reported of feeding experiments completed in 1914 with 

 511 lambs and 223 ewes and wethers at Caldwell, and 27 lambs at Moscow. 



At Caldwell the tests were conducted in open lots, the pens being so arranged 

 as to permit little exercise. The lambs were divided into three lots of approxi- 

 mately 170 each and fed for 109 days. The lambs in lot 1 received alfalfa 

 hay ad libitum and a grain mixture of corn and barley (1:3). They were 

 started on i lb. of grain per head daily, which was increased to 1.5 lbs. These 

 lambs made an average daily gain of 0.28 lb. per head at a feed cost of 6.14 cts. 

 per pound of gain, and returned a profit, after deducting all expenses, of 59 

 cts. per head. The lambs in lot 2 were fed alfalfa hay alone for the first 

 month of the test and then were given a grain mixture which averaged 60 

 per cent of barley, 33 per cent of corn, and 7 per cent of oats. They made 

 an average daily gain of 0.24 lb. per head at a feed cost of 5.85 cfcs. per 

 pound of gain and a net profit of 70 cts. per head. The lambs in lot 3 were 

 fed alfalfa hay and grain throughout the test. For the first 25 days the 

 grain consisted of barley and oats (3:1), and thereafter of barley alone. 

 The lambs in this lot gained an average of 0.28 lb. per head daily at a feed 

 cost of 5.58 cts. per pound of gain and a net profit of 77 cts. per lamb. 



The ewes and wethers were fed for 128 days a ration of cut mixed grain hay 

 and whole alfalfa hay. After about two months they were also fed a grain 

 ration of oats, which was changed after a few days to a mixture of ground 

 barley, ground wheat, and ground corn (1:1:1). They made an average daily 

 gain of 0.14 lb. per head at a feed cost of 8.62 cts. per pound of gain and a 

 net profit of 8 cts. per head. In these experiments the following values per 

 ton for hay were realized after deducting all expenses : For lambs, lot 1 $10.53, 

 lot 2 $12.42, and lot 3 $12.47, and for ewes and wethers $6.40. The prices 

 charged for feeds were alfalfa hay $5 and cut hay $6 per ton; barley and 

 oats $1 per hundredweight, with 10 cts. for grinding; corn $1.40 per hundred- 

 weight, with 10 cts. for cracking; and ground wheat $1.20 per hundredweight. 



In the Moscow experiment 27 farm grown lambs, averaging about 101 lbs. 

 each, were fed for 55 days under shelter. The nine lambs in lot 1 were fed 

 mixed hay and a mixture of barley and field peas (3:1). They made an 

 average daily gain of 0.281 lb. per head, at a feed cost of 9.07 cts. per pound 



