Quinocetone And Xylo-oligosaccharides In Broilers Diets Production Application Study

A experiment was conducted to study the effect of Xylooligosacchandes and Quinoceton -e addition in diets on the performance, dressed carcass quality, intestinal tract microorganis -m, blood serum the hyperoxide enzyme and the protein digestion rate of growing Xuyi local broiler.The treatment of diets were supplementing of Quinocetone(50mg·kg^-1), Xylooligosacchandes(100mg·kg^-1), Quinocetone(50mg·kg^-1)+Xylooligosaccharides (100mg·kg^-1).The experimental result showed that:(1) comparing with control group, body weight gain of Xuyi local broiler was remarkably increased with the addition of Quinocetone in diet (P<0.01), and the feed conversion rate was enhanced(P<0.05); Xylooligosacchandes remarkably improved the feed conversion rate(FCR) (P<0.01), but be lower than Quinocetone group. Quinocetone + Xylooligosacchandes significantly increased body weight gain and FCR when compared with control group(P<0.01), Quinocetone group(P<0.05), Xylooligosacchandes group(P<0.05),respectively. (2) T-SOD value of blood serum in broilers with the addition of Quinocetone + Xylooligosacchandes was remarkably increased when compared with control group, Quinocetone group, Xylooligosacchandes group(P<0.01 ).Quinoceton(P<0.01)and Xylooligosaccharides(P<0.01) increased blood serum GSH-PX value, respectively, comparing with control group. Quinocetone+Xylooligosaccharides remarkably increased blood serum GSH-PX value when comparing with Quinocetone and Xylooligosaccharides (P<0.01). (3) The number of jejunum E.coli was remarkably declined with the addition of Quinocetone, Xylooligosaccha -rides and Quinocetone+Xylooligosaccharides compared with control group (P<0.05). The number of E.coli of Quinocetone+Xylooligosaccharides group is significantly lower compared with Xylooligosaccharides group, but remarkably higher compared with Quinocetone. No synergetic effect of Quinocetone and Xylooligosaccharides on inhibiting E.coli proliferation was detected(P>0.05); Compared with control group, the number of Lactobacillus in Quinocetone+Xylooligosaccharides group(P<0.01) and Xylooligosacchari -des group(P<0.01) was increased, respectively. Inhibitory effect of Quinocetone on the number of Lactobacillus was detected (P<0.05). (4) Compared with control group, Quinocetone(P>0.05), Xylooligosaccharides (P<0.05), and Quinocetone + Xylooligosaccha -rides(P<0.01) increased evisceration rate in broilers, respectively; Quinocetone(P<0.01), Xylooligosaccharides(P<0.01), Quinocetone+Xylooligosaccharides(P<0.01) increased breast muscle rate, respectively. Quinocetone+ Xylooligosaccharides breast muscle rate is remarkably increased compared with Quinocetone (P<0.05);Quinocetone, Xylooligosaccharides, Quinocetone + Xylooligosaccharides increased thigh muscle rate(P<0.05). Xylooligosaccharides, Quinocetone+Xylooligosaccharides significantly increased thigh muscle rate when compared with Quinocetone group(P<0.01). (5) No obvious...