Avaliação do uso de óleos essenciais combinados com ácido benzóico na alimentação de frangos de corte

Abstract

Two experiments to supplementation ofessence soils withbezóicoacid,as (thymol, evaluatethe eugenol and piperine) effect of combined an alternative to performance enhancers in dietfor broilerson performance characteristics and efficiency were carried outagainst Salmonella, Escherichia coliand Clostridium. The experiment was conductedin thepoultry sector of the Federal University of Reconcavo of Bahia, the Cruz das Almas - Bahia. For the first experimentin 2016 broiler chicks, male Cobb 500 strainofday-oldreared until38 days ofage, which weredistributed in a completely randomized design consisting of 6 treatments and 8 replicates of 42 birds perunit were used experimental. The treatments were: T1- Positive Control: Stafac(virginiamycin) 16.5 ppm in all phases; T2- Negative control: no growth promoter; T3- 300 ppm Mane Poultry Plus (CPP) in all phases; T4- CPP450 ppm at all stages; T5- CPP450 ppm up to 21 day sand 300 ppm CPP22-38 days old; T6- Association: virginiamycin (16.5ppm) + CPP 300 ppm at all stages. To 21 and 38 days ofage, birds and feed leftovers were weighed to measure the performance parameters: weight gain, feed intake andfeed conversion. It was concluded that the addition of essential oils combined with organic acids does not significantly influence (P>0.05) the growth performance of experimentII 1680 malechicks Cobb 500, broiler divided phases; chickens. For into 5 treatments and 8 replicatesstra in were used, distributed in 40 boxes containing 42 birds each. Withthe following treatments: T1-Positive Control: Stafac (virginiamycin) 16.5ppm in all T2-Negative + CPP 300 ppm. control: no growth promoter; T3-300 ppm Crina Poultry Plus (CPP); T4-CPP 450 ppm; T5-Association: virginiamyc in(16.5 ppm) At 21 days of age, 24birds pertreatment were sacrificed by cervical necropisiadas deslocameto and collected duodenalloop for microbiological analyzes, which were donein the Laboratory ofInfectious Diseases UFRB, whereit was observed thatthere was no growth of coloniesof bacteria analyzed.