1. bookVolume 26 (2022): Edizione 1 (January 2022)
Dettagli della rivista
Prima pubblicazione
26 Mar 2010
Frequenza di pubblicazione
2 volte all'anno
access type Accesso libero

Feeding Management Optimization in Livestock Farms with Anaerobic Digestion Plant: A Discrete Stochastic Programming (DSP) Model

Pubblicato online: 15 Aug 2022
Volume & Edizione: Volume 26 (2022) - Edizione 1 (January 2022)
Pagine: 587 - 605
Dettagli della rivista
Prima pubblicazione
26 Mar 2010
Frequenza di pubblicazione
2 volte all'anno

Biogas-based energy production has become a successful strategy for many livestock farms around the world. However, raw materials production is threatened by a growing uncertainty due to effects of climate change on crops cultivation. The aim of this paper is to propose a tool for the optimal design of the biogas mixture, considering respectively the nutritional needs of livestock and the parameters of the biogas process. Within a context of climate variability, a three-stage Discrete Stochastic Programming (DSP) model is applied in a dairy cattle farm with anaerobic digestion plant. This state-contingent approach (DSP model) considers, as uncertain parameters, the watering needs and the yields of forage and energetic crops. The DSP model is compared with equivalent models of expected values to verify the benefits derived from the explicit inclusion of climatic states. The results showed a remarkable improvement in the efficiency of feedstock management, reflecting in a significant reduction in farm costs (11.75 %) compared to the baseline scenario. Whereas, the comparison between the state-contingent approach and the expected value model, showed only slight benefits (0.02 %). This confirms that the DSP model’s ability to offer a better hedged solution increases when high climate variability affects crop yields and irrigation needs.


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