Abstract
Decision Support Tools (DSTs) and models are becoming increasingly important to make informed decisions. The aim of this review was to understand how the scientific assumptions behind related pasture-based DSTs used in New Zealand interrelate. Using modelled feed intake of grazing sheep as a case study, we reviewed the metabolisable energy (ME) assumptions of relevant New Zealand models. Although the DSTs were largely dependent on a common model, there were some discrepancies between them. We raise two concerns: 1. In New Zealand, pasture-based livestock models to predict ME intake are highly dependent on equations developed in Australia, not validated in New Zealand. 2. The minor discrepancies between models make collaboration difficult - this is particularly pertinent to farmer-targeted DSTs. Closer collaboration between DST companies and research institutions is required to agree on consistent, robust equations aligned with the latest scientific knowledge.
Original language | English |
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Pages (from-to) | 19-22 |
Number of pages | 4 |
Journal | Journal of New Zealand Grasslands |
Volume | 77 |
DOIs | |
Publication status | Print publication - 1 Jan 2015 |
Externally published | Yes |
Keywords
- Decision Support Tools
- ruminant nutritio
- feed planning