Partial replacement of commercial feed with saccharin rustica in broiler chickens

Abstract

Poultry farming is one of the Colombian industries with the highest growth in recent years, however, it has its main production cost in its food, which is why different investigations have been carried out worldwide in order to seek partial and even total alternatives. to the use of commercial balanced food as the main food source for broilers. The study was conducted in the city of Bochalema, Colombia. 50 Ross line chickens were used. The effect of saccharina was evaluated as a partial substitute for commercial balanced feed on productive and economic factors of broilers at levels of 5%, 10%, 15% and 20%, in addition to a control group. The diet was implemented from day 22 to day 45. During the development of the research, productive indicators of food consumption, weight gain (GP), feed efficiency (EA), feed conversion (FC), carcass yield (CR), productivity index (IP), European productive efficiency factor (FEEP) and costs for food. The analysis of variance was used for the treatment of the data under a completely randomized design and for the comparison of means the Tukey test with a significance of 5%. Polynomial regression and the derivative of a quadratic function were used to determine the optimal level of saccharin. Linear, quadratic and cubic effects related to substitution levels were evaluated by octagonal contrasts. The effect of the treatments on the variables Con, PCF, GP, CA, EA, IP and FEEP was presented. For PCF, GP, CA, EA, IP and FEEP there was a negative linear order effect. For RC, similar behavior was presented between the treatments and the control. The control treatment presented the best economic behavior compared to the other treatments. The optimal level of saccharina was 4.5% for weight gain, 3.5% for feed conversion and 2.5% for feed efficiency.