Livestock Management RANCHING AERWAY
Phase 2 The second phase consists of
BALE BEDS & PROCESSORS DEALERS FOR: TITAN WEST AERWAY DEWEZE
POWER POST DRIVER TITAN TRAILERS
CENTRAL CITY SCALES STAMPEDE
FOR-MOST LOADING CHUTES SCALES
MANUAL & HYDRAULIC SQUEEZE CHUTES
breeding through calving. Like a mature cow, the nutritional require- ment of heifers varies greatly with the stage of gestation. Unlike a ma- ture cow, heifers have an additional nutritional demand for continued growth. The last trimester of gestation
results in the period of greatest nutritional demand. Growth rates needed to meet weight targets are lower during this phase, typically in the range of 0.8 pound per day. However, because of the length of this period and the various seasons involved, meeting nutritional needs requires planning. At the time of calving, heifers should have reached approximately 80 percent of their mature weight.
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Phase 3 The third phase covers the peri-
od from calving until rebreeding. At this point in the maturation process, heifers should be between 80 and 85 percent of their mature weight. Nutritional demands for growth will have been reduced compared with the 2 previous phases, because the heifer is approaching her ma- ture weight. However, nutritional needs to support lactation during the breeding season require that special attention be paid to fi rst- calf heifers.
Energy and protein supply In all 3 phases of heifer develop-
ment, energy and protein supply are the greatest concerns to ensuring adequate growth. Adequate protein would not nor-
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mally be a concern early in the grazing season, but when grass matures, one may need to consider protein supplementation. Depending on the region of the
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