37 



Table 13. - Effects of winter nutritional levels on rates of gain during winter feeding, subsequent grazing on 



irrigated pasture, and feedlot gain 







Average gains during - 







Wintering 

 level ]_l 



Winter 

 feeding 2/ 



Pasture 

 grazing 2/ 



Winter 



and 

 pasture 



Feedlot 

 performance 3/ 



All 

 feedings 





Daily : Total 



Daily : Total 



Daily : Total 



Daily : Total 



Daily : Total 



High 



Medium 



Pounds Pounds 



1.29 200 



1.01 157 



. 33 51 



Pounds Pounds 

 1.89 292 

 1.91 296 

 2. 45 380 



Pounds Pounds 

 1.59 492 

 1.46 453 

 1. 39 431 



Pounds Pounds 

 2.23 120 

 2.23 126 

 1.96 99 



Pounds Pounds 

 1.68 612 

 1.57 579 

 1.47 530 





1/ Wintering level indicates the protein level of the feed. 

 2/ Feeding period 155 days. 



3/ Average feeding periods: High - 53. 8 days; medium - 65. 6 days; and low - 50. 6 days. These steers 

 were fed until they attained the grade of "good. " 



See Heinemann, W. W. , and Van Keuren, R. W. , footnote 13, page 35. 



Table 14. - Results per animal of selected feeding trials on heifer calves, Gunnison, Colo. 



Lot 



Ration 



Average per animal 



Begin- 



ing 

 weight 



Ending 

 weight 



Gain 



Gain 

 per 

 day 



Hay consumed 1 / 



Per 

 day 



Per pound 

 gained 



Crude 

 protein 

 consumed 

 per day 



2 2/ 



3 2/ 



4 4/ 



3/ 



0. 5 lbs. 41 per- 

 cent cottonseed 

 pellets 3/ 



1. 18 lbs. 17. 4 

 percent super- 

 hay 3/ 



10. 1 percent crude 

 protein hay 



Pounds Pounds Pounds Pounds Pounds Pounds Pounds 



0.77 



426 470 



430 550 



433 



407 



547 



508 



44 0.36 11.90 32.84 



120 1.00 11.91 11.91 



114 .95 11.87 12.49 



101 1.03 11.81 11.51 



.98 



.98 



1. 19 



1/ Net consumption of hay fed free choice. 



2/ Willhite, F. M. , and Rouse, H. K. Colorado Mountain Meadow Annual Reports, 1956. Page 28. Fort 

 Collins, U. S. Agricultural Research Service Soil and Water Conservation Branch (Mimeographed. ) 



3_/ Lots 1, 2, and 3 fed 6. 5 percent crude protein hay in addition to supplement indicated. 



4/ Gunnison County Feeding Research Corporation, Seventh Annual Visitors' Day, Ser. Paper 7. 1957 

 (Mimeographed. ) 



