@article{MAKHILLJAVA20131224005,
    title = {Primary Productivity, Diet Quality and Voluntary Intake for Estimating Stocking Rate},
    journal = {Journal of Animal and Veterinary Advances},
    volume = {12},
    number = {2},
    pages = {261-268},
    year = {2013},
    issn = {1680-5593},
    doi = {javaa.2013.261.268},
    url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2013.261.268},
    author = {Jesus Herrera,Manuel Murillo,Francisco Gonzalez,Yolanda,Martin,Francisco O. Carrete,Armando Cortez and},
    keywords = {Stella,simulation model,primary production,stocking rate,grassland},
    abstract = {The aim of this study was to estimate stocking rate in open 
  grassland considering its primary productivity, diet quality and voluntary intake 
  of beef cattle. To achieve this, the methodology and systems analysis approach 
  was used. By means of the Stella 8.0 simulation program a model was developed 
  whose predictions show an 11% of difference in the actual primary productivity 
  respect to that estimated of 3 years with different precipitation. In the study 
  period, the stocking rate estimated in 2000 ha in the study period according 
  to dry matter intake, crude protein and metabolizable energy ranged between 
  248-663, 233-823 and 297-758 animal units, respectively. The monthly stocking 
  rate average estimated by the model base on produced dry matter and protein 
  crude and metabolizable energy was 247.4, 289.5 and 321.54 animal units, respectively. 
  Stocking rate and stocking coefficient predicted by the model indicate that 
  assigning the hectares per animal unit will meet the needs of dry matter intake 
  but there is a deficiency of crude protein and metabolizable energy when the 
  mean annual precipitation is equal or lower to average.}
    }