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Buriti oil as an alternative to the use of antimicrobials in broiler diets.

Francisca Luana A CarvalhoPatrícia M LopesFrancinete A S MouraLeilane R B DouradoReneton G DE SouzaAlison C FeitozaAmaury N DE OliveiraDaniel Biagiotti
Published in: Anais da Academia Brasileira de Ciencias (2024)
The objective of this study was to evaluate the effects and economic viability of diets containing different levels of antibiotic and buriti oil (BO) on performance, carcass and cut yields, and relative weight of organs of broilers. A total of 432 one- to 42-day-old male chicks were distributed in a completely randomized experimental design with six treatments, each consisting of six replicates of 12 birds. The treatments consisted of one diet with antibiotic without BO, one diet without antibiotic (DWA) without BO, and four DWA containing increasing levels of BO (0.2, 0.4, 0.6, and 0.8%). Average weight and weight gain (WG) of broilers fed with DWA + BO were similar to those of birds fed control diet. Feed intake and feed conversion (FC) were not different among treatments. Relative weight of pancreas linearly increased in the birds fed diets containing BO. The inclusion of 0.45 and 0.40% of BO in the diets promoted the improvement of WG and FC, respectively. Cost of feed management, ratio, gross margin, and gross income did not differ among treatments. It was concluded that the inclusion of 0.45% of BO in diets without antibiotics is economically feasible and allows recovering the performance of broilers.
Keyphrases
  • weight loss
  • weight gain
  • physical activity
  • body mass index
  • heat stress
  • birth weight
  • clinical trial
  • randomized controlled trial
  • fatty acid
  • phase iii
  • study protocol