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  • Title: Effects of dietary supplemental phytoncide instead of zinc oxide on growth performance, nutrient digestibility, blood profiles, and faecal microflora in growing pigs.
    Author: Zhang JY, Kim YM, Kim IH.
    Journal: J Anim Physiol Anim Nutr (Berl); 2019 Jan; 103(1):269-275. PubMed ID: 30474163.
    Abstract:
    This study was aimed to evaluate the effect of phytoncide (PTC) instead of zinc oxide on growth performance, blood profile, nutrient digestibility and faecal microflora in growing pigs. A total of 120 growing pigs [(Landrace × Yorkshire) × Duroc] with initial body weight 24.48 ± 1.62 kg were randomly assigned to four dietary treatments for a 6 weeks feeding trials, the treatments as follow: CON (base diet)，ZO (CON + 0.03% Zinc Oxide), PTC1 (CON + 0.5% PTC), PTC2 (CON + 1.0% PTC). Compared to basal diet, during weeks 1-3, 3-6, and overall experimental period, the ADG of growing pigs fed phytoncide diet trend to be increased, and fed ZO diet was significantly increased (p < 0.05). During weeks 3-6 and overall experiment period, pigs fed the ZO diet showed improvement in feed intake compared to pigs fed basal diet as a trend. Compared with basal diet, the pigs receiving phytoncide diet significantly increased the digestibility of DM and reduced the concentration of aspartate transaminase in pigs receiving 1.0% phytoncide diet. These results suggested that dietary supplement of phytoncide, Korean pine extract, could be used as an alternative to zinc oxide by decreasing detoxify to soil and plants without influencing the performance of growing pigs. Further study is needed to determine the systemic estimation of the dose of phytoncide.
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