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

Abstract

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.

Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

“…However, in this case, DPPH radical scavenging activities did not show any different by fed QR. These may be related to rapid metabolism of quercetin (de Boer et al, 2005;van der Woude et al, 2004;Cho et al, 2010). Table 5 shows the effect of TBARS value of the loin Standard error of the means (n = 11).…”

“…Cho et al (2010) reported the effectiveness of dietary quercetin on meat quality of goat. Kang et al (2011) also studied the effect of dietary quercetin of Hanwoo.…”

Effects of Dietary Quercetin on Growth Performance, Blood Biochemical Parameter, Immunoglobulin and Blood Antioxidant Activity in Broiler Chicks

“…Anjaneyulu and Chopra(2004) (Hwang, 2009). 특히 albumin은 간 장애나 체내 단백대사 이상의 지표로 사용되 며, total protein은 혈청 단백질을 나타낸다 (Cho et al, 2010). Rupasinghe et al(2010) AST (aspartate aminotransferase)는 손상 받은 간세포로부 터 딧세강(space of Disse)내로 빠져나가 직접 혈류로 용이하 게 확산되어 간 손상을 측정할 수 있으며, ALT(alanine aminotransferase)는 간담계 질환과 골질환 등에 주로 측정된다 (Cho et al, 2010 …”

Effect of Dietary KocetinTMon Meat Quality of Hanwoo Loin

“…Cho et al (2010) demonstrated the effect of dietary quercetin on meat quality of goat. Also, other studies were done with rats and pigs (Ameho et al, 2008;de Boer et al, 2005;Luehring et al, 2011).…”