374 



EXPERIMENT STATION RECORD. 



[Vol. 43 



Continued study of hogging-down soy lieans indicated that turning hogs into 

 a field of corn and soy beans was more profitable than feeding corn to hogs 

 having the run of a soy-bean field. 



Two experiments in feeding cantonment garbage to hogs indicated that corn 

 meal or corn meal plus either tankage or soy bean meal was not a profitable 

 addition to garbage. 



[Range cattle experiments] (Xew Mexico Sta. Rpt. 1910, pp. 39-42). — In an 

 experiment conducted in cooperation with the U. S. Department of Agriculture, 

 five 2-year-old grade Hereford heifers were wintered at the Tucumcari dry 

 farm experiment station and received 20 lbs. of kafir silage and 3 lbs. of cow- 

 pea hay per head daily besides the native range grasses. This proved to be 

 more than a maintenance ration, and the calves averaged 11 lbs. heavier at 

 birth than those of 5 other heifers wintered exclusively on such forage as the 

 range provided. 



As a preliminary to an experimental study of chamiso brush (Atriplex 

 canescens) as maintenance feed for range cows, chemical analyses of leaves, 

 seed pods, and entire plants are reported. The protein content of the leaves is 

 b.86 per cent (19 per cent on the dry basis), and the ash is also high. 



Data are presented shomng the influence of age and character of feed on the 

 gain relative to body weight and on the finish of range steers during the fatten- 

 ing period. The finish was estimated from (1) dressing percentage, (2) propor- 

 tion of visible fat in the bone-free cuts of ribs and loin, and (3) the proportion 

 of ether-sohible matter in such cuts. The percentages of ether extract in the 

 ribs show perhaps the most striking differences, and these data averaged by age 

 classes and also the average gains are given below : 



Ivflvcnce of age and supplemental feed on gains and finifih of alfalfa-fed steers. 



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[Cattle feeding exi)erinients at North Dakota Station] (XortJi Dakota Sta. 

 Bnl. 136 (1920), pp. 11, 12, i6).— Satisfactory use of barley in steer-fattening 

 rations is noted, including one experiment where a high proportion of roughage 

 was fed. 



The third year's results are summarized of a pasture test with native range 

 grasses begun in 1916 and conducted in cooperation with the U. S. Department 

 of Agriculture. With 3 acres to a steer, pasturage was exhausted in 106 days 

 and with 5 acres in 137 days. Steers given 7 and 10 acres per head, respec- 

 tively, were carried throughout the grazing season. 



In a study of protein requirements yearling steers were fefl for 70 days on 

 rations composed («f oat straw, alfalfa hay, corn meal, and linseed meal. The 

 proportions were such that 9.6 therms of net energy per 1,000 lbs. of live weight 

 were furnished each animal, but the protein content varied. Two groups of 6 



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