Rocky mountain elk range1/20/2024 In general, Ca excesses have comparatively little effect on P absorption, as opposed to excesses of P on Ca absorption. The Ca:P ratios varied from 3:1 to 13:1 in clones. Ca:P Ratios: The ideal Ca:P ratio is 1:1 or 2:1 Ca:P ratio that is best for absorption and metabolism of Ca.Aspen may provide an important supplementary source of this mineral. Grasses typically comprise a large part of elk diets but the Ca content of grasses is often below nutritional requirements. While dietary P might be limiting, winter forage values are probably sufficient given that the animals can use P reserves accumulated during summer. 12 of the 24 clones barely met the minimum P requirement for beef cattle (0.18%). Minimum P requirements for deer vary between 0.20 and 0.35%. Phosphorus: P varied from 0.13 to 0.21%.Requirements for CP, Ca, P, and energy, are much higher during the last trimester of pregnancy. Protein requirements for growth are higher ranging from 12-16%. CP requirements for adult deer range between 6% and 9%. Wintering elk require 5-7% CP to meet maintenance. Crude protein: CP ranged from 4.56% to 7.44%. In some clones, P metabolism may be impaired by high ratios of Ca to P.Crude protein was limiting in some clones and P in most.Most clones provided adequate levels of Ca, Mg, Mn, and Zn.Objectives: (1) to examine spatial variability in nutrient concentrations among 24 clones of aspen and (2) to evaluate these differences with respect to elk and deer nutritional requirements. Spatial Variability in the Nutrient Composition of Populus tremuloides: Clone-to-Clone Differences and Implications for Cervids. Elk Nutrition And Home Range Elk - Diets, Competition with Livestock, Home Range Studies Nutritional Value of AspenÄ.E.
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