Estimation of localized cattle stocking rate from dung frequency in a mountain grassland
DOI:
https://doi.org/10.25260/EA.12.22.3.0.1223Keywords:
domestic herbivory, distribution patterns, livestock management, faeces, decomposition rateAbstract
Indirect quantification of localized stocking rate in a certain place within a paddock could be a useful management tool to study livestock spatial and temporal distribution patterns. In the present study, we aimed to adjusting a model to estimate localized cattle stocking rates on the basis of dung frequency. We also determined the previous time period of localized stocking rate that is best reflected by the dung counts. We quantified the animals grazing in paddocks with different livestock managements, every 10 days during 15 months, to obtain a value of localized stocking rate. Likewise, in the same plots dung frequency was evaluated after 15 months. Dung frequency was linearly, positive and significantly related to localized stocking rate for all of the previous periods considered (from 1 to 15 months). We considered a previous period of 12 months, a timing which is in accordance to temporal management decisions and the estimated model explained a reasonable proportion of the variance (R2=0.49), and finally, had a normally distributed residuals. The model was validated at paddock scale by using dung frequency data from dates and/or paddocks not included in the model adjustment. We conclude that the proposed model based on dung frequency and the proposed methodology is a good indicator of localized cattle stocking rate of the previous year.
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Copyright (c) 2020 Axel R. von Müller, Ana M. Cingolani, María V. Vaieretti, Daniel Renison
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