title: Dietary Phytoncide Supplementation Improved Growth Performance and Meat Quality of Finishing Pigs.
abstract: We conducted this 10-wk experiment to evaluate the effects of dietary phytoncide, Korean pine extract as phytogenic feed additive (PFA), on growth performance, blood characteristics, and meat quality in finishing pigs. A total of 160 pigs ([Landrace×Yorkshire]×Duroc, body weight (BW) = 58.2±1.0 kg) were randomly allocated into 1 of 4 treatments according to their BW and sex, 10 replicate pens per treatment with 4 pigs per pen were used (2 barrows and 2 gilts). Dietary treatments were: CON, control diet; PT2, CON+0.02% PFA; PT4, CON+0.04% PFA; PT6, CON+0.06% PFA. Overall, average daily gain (ADG) was higher in PT4 (p<0.05) than in PT6, average daily feed intake (ADFI) was lower in PT6 than in CON (p<0.05). Besides ADFI decreased linearly (p<0.05) with the increased level of phytoncide and gain:feed ratio in PT4 treatment was higher (p<0.05) than CON treatment. During 5 to 10 weeks and overall, quadratic (p<0.05) effect was observed in ADG among the treatments. At the end of this experiment, pigs fed with PT4 diet had a greater (p<0.05) red blood cell concentration compared to the pigs fed CON diet. Water holding capacity increased linearly (p<0.05) with the increased level of phytoncide supplementation. Moreover, firmness, redness, yellowness, and drip loss at day 3 decreased linearly (p<0.05) with the increase in the level of phytoncide supplementation. In conclusion, inclusion of phytoncide could enhance growth performance without any adverse effects on meat quality in finishing pigs.
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan 330-714, Korea.
authors.forename: Han Lin
authors.initials: HL
authors.lastname: Li
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan 330-714, Korea.
authors.forename: Pin Yao
authors.initials: PY
authors.lastname: Zhao
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan 330-714, Korea.
authors.forename: Yan
authors.initials: Y
authors.lastname: Lei
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan 330-714, Korea.
authors.forename: Md Manik
authors.initials: MM
authors.lastname: Hossain
authors.affiliation: Genebiotech. Co. Ltd., Seoul 06774, Korea.
authors.forename: Jungsun
authors.initials: J
authors.lastname: Kang
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan 330-714, Korea.
authors.forename: In Ho
authors.initials: IH
authors.lastname: Kim
keywords: Blood Profile; Finishing Pig; Growth Performance; Meat Quality; Phytoncide