Broiler chicken slaughter age optimization model design by considering the total chicken breeding cost

This paper presents a development of a mathematical model used to optimize broiler harvest time by considering the estimated profit obtained. The model development is carried out by utilizing Feed Conversion Ratio (FCR) data which describes the level of efficiency of animal feed conversion. By paying attention to this pattern, calculations can be made to predict the weight growth of chickens during the breeding period. Calculations are also carried out to estimate the amount of profit obtained by considering the cost of food. Adjustments are made by making several modifications to the reference model, namely by adding the FCR bonus component to the objective function and eliminating the Day Old Chick (DOC) purchase cost component. Modifications were also made to the decision variables, constraints, parameters, and indices used in the overall model. The proposed model shows the estimated profit over the next few days, which might give the poultry owner additional insight to bargain with the buyer’s proposal regarding the profitable harvest time. With the cost component in the model, the calculation results will depend on the price parameter. In this study, a search for the best alternative solution was made to meet the demand for 5000 chickens when they were 14 days old. The solution for this condition is to delay the harvest time for one day, so that the maximum profit prediction is Rp. 34,740,043.66 or 13% of the initial profit.