Optimizing productivity, health, and sustainability in livestock production hinges on effective animal feeding strategies. Simulation modeling has emerged as an invaluable tool for thoroughly understanding and evaluating these strategies. Through simulation models, the complex interactions among animals, feed resources, environmental factors, and management practices can be analyzed comprehensively and dynamically. Here we try to make a preliminary model to understand their feeding strategies. This model aims to depict the intricate relationships among the animals. To facilitate this exploration, a simulation model has been constructed utilizing a causal diagram based on the Specification and Description Language (SDL). Such models offer a robust platform for assessing the intricate dynamics at play within livestock systems, enabling stakeholders to make informed decisions for enhancing efficiency and sustainability.