Goats and deer do not use terpenoids to select or avoid browsing on
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چکیده
A comparison between heavily browsed and non-browsed Juniperus pinchotii trees revealed that, in contrast to the recent J. ashei study (Adams et al., 2013), the percentage of total volatile leaf oil yields were not significantly different (P > 0.05) between non-browsed trees (1.08%, DM-basis) and browsed trees (0.94%, DM basis). Only one terpene in the mg/g data, α-pinene, was significantly different (P ≤ 0.05) between browsed and non-browsed trees. Only citronellol was significantly different (P ≤ 0.05) in the percent total oil data. Neutral detergent fiber (NDF) and acid detergent fiber (ADF) were highly significantly different (P ≤ 0.05) between browsed and non-browsed samples. In contrast, no significant differences (P > 0.05) were found for crude protein (CP), extractable condensed tannins (ECT), proteinbound tannins (PCT), total % condensed tannins (TCT), and in vitro dry matter digestibility (IVDMD). A comprehensive analysis of the leaf oil of J. pinchotii is reported. Published on-line www.phytologia.org Phytologia 95(3): 238-245 (August 1, 2013).
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