日粮中添加CoQ10对伊犁马运动性能、血气指标及血浆生化指标的影响OA

This experiment aimed to investigate the effects of supplementing coenzyme Q10(CoQ10)on the athletic performance,blood gas indicators,and plasma biochemical indicators of Yili horse.32 Yili horses,aged 2 years,with similar average weight(393.47 kg±31.58 kg),consistent training intensity,and similar competition performance,were selected and randomly divided into 4 groups,with 8 horses in each group,half male and half female.The control group,test group Ⅰ,test group Ⅱ,and test group Ⅲ were respectively supplemented with 0,1,1.5,and 2 mg/kg body weight of CoQ10 in the basic diet for a 75-day supplementary feeding experiment,with a 15-day pre-feeding period and a 60-day feeding period.Blood samples were collected from the horses on the 0th day,30th day(1 hour before the race),and 60th day(1 hour before the race)of the experiment in order to measure blood gas indicators.1 800 m speed races were conducted on the 30th and 60th days of the experiment,and blood samples of horses were collected immediately before and after the race and 1 hour after the race in order to measure plasma biochemical indicators.The results showed that supplementing CoQ10 could shorten the race time of Yili horses in the 1 800 m speed race.On day 30,the competition time for test groups Ⅱ and Ⅲ was significantly shorter than that of the control group(P<0.05).On day 60,the competi-tion time for test groups Ⅰ,Ⅱ,and Ⅲ was extremely significantly shorter than that of the control group(P<0.01),while no significant difference was observed among test groups Ⅰ,Ⅱ,and Ⅲ at both time points(P>0.05).On the 0th day of the test,there was no significant difference in all blood gas indicators among groups of Yili horses(P>0.05).As the days of CoQ10 supplementation increased,the calcium ion(Ca2+)content in the test group Ⅱ on the 30th day was sig-nificantly higher than that of the control group(P<0.05),while there was no significant difference in the concentrations of glucose(Glu),hematocrit(Hct),hemoglobin(Hb),acid-base content of the blood,various ions,partial pressure of carbon dioxide(PvCO2),partial pressure of oxygen(PvO2),total carbon dioxide content(TCO2),and blood oxygen satu-ration(SvO2)(P>0.05).The results of plasma biochemical indicators showed that on the 30th day of the experiment,the uric acid(UA)level in the test group Ⅲ after the race was significantly higher than that of the control group,test group I,and test group Ⅱ(P<0.05),and the phosphocreatine kinase(CK)and aspartate aminotransferase(AST)levels in test group I were significantly higher than those of the control group,test group Ⅱ,and test group Ⅲ(P<0.05);the UA level in test group Ⅲ was significantly higher than that of the control group and test group I at 1 hour after the race,and the albumin(ALB)level in test group Ⅲ was significantly higher than that of the control group(P<0.05).On the 60th day of the experiment,the AST level in test group Ⅲ at 1 hour before the competition was significantly higher than that of the control group(P<0.05),the lactate dehydrogenase(LDH)level in test group Ⅱ after the game was ex-tremely significantly higher than that of the control group,test group I,and test group Ⅲ(P<0.01),and the AST level in test group Ⅲ was significantly higher than that of the control group and test group I(P<0.05).1 hour after the race,the LDH level in test group Ⅱ was significantly higher than that of the control group,test group I,and test group Ⅲ(P<0.05).In conclusion,supplementing CoQ10 could significantly improve the athletic performance of Yili horses in the 1 800 m speed race.The optimal dosage is achieved by adding 1.5 mg/kg body weight of CoQ10.