Effects of Dietary Quercetin on the Feed Utilization, Blood Parameters, and Meat Quality in Korean Native Goats

Quercetin의 급여가 산양의 사료이용성, 혈액상 및 육질에 미치는 영향

  • Cho, Sung-Kyung (Dept. of Animal Science and Biotechnology, Chungnam National University) ;
  • Jo, Cheo-Run (Dept. of Animal Science and Biotechnology, Chungnam National University) ;
  • Jung, Sa-Mu-El (Dept. of Animal Science and Biotechnology, Chungnam National University) ;
  • Kim, Min-Kyu (Dept. of Animal Science and Biotechnology, Chungnam National University) ;
  • Oh, Hyun-Min (Dept. of Animal Science and Biotechnology, Chungnam National University) ;
  • Lee, Bong-Duk (Dept. of Animal Science and Biotechnology, Chungnam National University) ;
  • Lee, Soo-Kee (Dept. of Animal Science and Biotechnology, Chungnam National University)
  • 조성경 (충남대학교 동물자원생명과학과) ;
  • 조철훈 (충남대학교 동물자원생명과학과) ;
  • 정사무엘 (충남대학교 동물자원생명과학과) ;
  • 김민규 (충남대학교 동물자원생명과학과) ;
  • 오현민 (충남대학교 동물자원생명과학과) ;
  • 이봉덕 (충남대학교 동물자원생명과학과) ;
  • 이수기 (충남대학교 동물자원생명과학과)
  • Received : 2010.04.21
  • Accepted : 2010.07.26
  • Published : 2010.08.31


This study was conducted to investigate the effects of dietary quercetin on feed utilization, blood parameters, and meat quality of Korean native goats. Totally sixteen Korean native goats, 15 kg of average BW aged at 7 months, were employed in the experiment with eight replicates per treatment. One group was fed quercetin at 200 mg/kg level and the other group was fed none as control for 15 days. Dietary inclusion of quercetin did not affect feed intake, water intake, and the amount of urine and feces. Digestibilities of crude fat, NDF, and ADF for 5 days were not affected, but digestibility of crude protein was increased by the dietary inclusion of qurecetin (P<0.05). Quercetin increased rumen total VFA, propionate, and butyrate significantly (P<0.05). Acetate/propionate ratio (A/P) in the quercetin treated group was significantly higher than control. 2,2-Azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) ($ABTS^+$) reducing activity of the loin from goat fed quercetin was higher than that of control. Sensory analysis conducted at 24 hr post mortem revealed that color, texture, and overall acceptability of the loin from goat fed quercetin were significantly preferred to that of control. Feeding quercetin did not influence pH, water holding capacity, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, TBARS value, and fatty acid composition of the loin significantly. In conclusion, the dietary inclusion of quercetin increased the digestibility of crude protein, rumen total VFA, propionate, butyrate, and A/P ratio. In addition the higher color and texture preference and ABTS+reducing activity of loin indicating some beneficial effect on enhancement of meat qualityin goats.


Supported by : 충남대학교


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