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Effects of a mixture of essential oils and organic acid supplementation on growth performance, blood profiles, leg bone length, and intestinal morphology in broilers

  • Liu, Shu Dong (Division of Food and Animal Science, Chungbuk National University) ;
  • Song, Min Ho (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Yun, Won (Division of Food and Animal Science, Chungbuk National University) ;
  • Lee, Ji Hwan (Division of Food and Animal Science, Chungbuk National University) ;
  • Cho, Seung Yeol (Eugenebio) ;
  • Kim, Gok Mi (Department of beauty art, Yonam college) ;
  • Kim, Hyeun Bum (Department of Animal Resource and Science, Dankook University) ;
  • Cho, Jin Ho (Division of Food and Animal Science, Chungbuk National University)
  • Received : 2018.09.11
  • Accepted : 2019.04.19
  • Published : 2019.06.01

Abstract

This study was done to evaluate the effects of a mixture of essential oils and organic acid supplementation on growth performance, blood profiles, leg bone length and intestinal morphology in Ross broilers. A total of 40 Ross 308 broilers ($1140{\pm}80g$) were randomly allocated to 2 groups, a basal diet (CON) and a basal diet + 0.05% $Avi-protect^{(R)}$ (AVI, Mixture of 25% citric, 16.7 sorbic, 1.7% thymol, and 1.0% vanillin), with 20 replicates for every group and 1 chicken per replicate per cage. The broilers were raised in a temperature-controlled room maintained at $24{\pm}1^{\circ}C$ and $50{\pm}5%$ humidity. The body weight (p < 0.05) and weight gain (p < 0.05) of the broilers were increased in the AVI group compared with the CON group. The triglyceride (p < 0.05) and low density lipoprotein (LDL) (p < 0.05) contents were significantly decreased in the AVI group compared with the CON group. There was no significant difference in the leg bone length between the AVI and CON groups (p > 0.05). The villi height (p < 0.05) and goblet cell count (p < 0.05) were significantly increased in the AVI group compared with the CON group. In conclusion, $Avi-protect^{(R)}$ as a feed additive improved the growth performance and lipid metabolism and promoted the development of the intestinal morphology of broilers.

Table 1. Compositions of basal diets (as-fed basis).

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Table 2. Effect of supplementa tion of mixture of essential oils and organic acid on growth performance in broilers.

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Table 3. Effect of supplementa tion of mixture of essential oils and organic acid on blood profile in broilers.

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Table 4. Effect of supplementation of mixture of essential oils and organic acid on leg bone length in broilers.

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Table 5. Efect of supplementa tion of mixture of essential oils and organic acid on intestinal morphology in broilers.

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