本文選題：伊犁馬　切入點：玉米　出處：《新疆農(nóng)業(yè)大學》2015年碩士論文

【摘要】：本試驗研究由三個試驗組成,即α-淀粉酶體外酶解三種不同加工處理玉米中淀粉消化性的研究;不同處理玉米對半歲伊犁公馬消化代謝及血液相關指標的影響;不同加工處理玉米對1歲伊犁公馬消化代謝及血液相關指標的影響。研究目的是為不同處理玉米在馬屬動物飼料中的應用提供參考依據(jù)。試驗一:α-淀粉酶體外酶解三種不同加工處理玉米中淀粉消化性的研究。試驗通過體外酶解法,測定不同加工處理玉米各酶解時間點,還原糖生成量、每小時凈還原糖產(chǎn)生量及玉米中直鏈淀粉和支鏈淀粉的消耗量與消耗率來比較分析淀粉的消化性。8 h酶解過程中,產(chǎn)生還原糖總量膨化玉米組高于玉米粉組16.98 mg,蒸汽壓片玉米組高于玉米粉組9.88 mg。膨化加玉米組的直鏈淀粉和支鏈淀粉的累積消耗率分別高于玉米粉組14.02%和12.5%,蒸汽壓片玉米組直鏈淀粉和支鏈淀粉的累積消耗率分別高于玉米粉組9.93%和9.02%。試驗二:不同加工處理玉米對半歲伊犁公馬消化代謝及血液相關指標的影響。試驗選取體重相近、健康狀況良好的半歲伊犁公馬20匹,按體重相近原則,隨機分為4組,每組5匹,分別飼喂等質(zhì)量、等比例含不同處理玉米的日糧,加酶組在相同日糧基礎上多加1 g酶制劑,進行消化代謝試驗。試驗結果顯示:相對于玉米粉組,膨化玉米組DM的消化量提高了0.15 kg,OM的消化量提高了0.21 kg,CP的消化量提高了2.46 g,NDF的消化率提高了2.68%,ADF的消化率提高了2.04%,N的保留率提高了5.84%;蒸汽壓片玉米組OM的消化量提高了0.11 kg(P0.05)。玉米粉加酶組與玉米粉組相比較無顯著差異(P0.05)。試驗三:不同加工處理玉米對1歲伊犁公馬消化代謝及血液相關指標的影響。試驗選取24匹體重相近,健康狀況良好的1歲伊犁公馬,按體重相近原則隨機分為3組,每組8匹,分別飼喂等質(zhì)量、等比例含不同加工處理玉米的日糧,進行消化代謝試驗。結果顯示:與玉米粉組相比較,膨化玉米組對DNF的消化率提高了5.42%,對ADF的消化率提高了5.26%,N的保留率提高了12.61%;蒸汽壓片玉米組ADF的消化率提高了4.95%(P0.05)。
[Abstract]:This experiment was composed of three experiments, namely, the digestion of starch in corn treated with 偽 -amylase in vitro, the effect of different treatments on digestion and metabolism of half-year-old Yili Gongma and related indexes of blood, and the effect of different treatments on the digestion and metabolism of starch in maize.Effects of different processing treatments on digestion and Metabolism and Blood related Indexes of 1-year-old Yili Gonghorse.The purpose of this study was to provide reference for the application of different treatments of maize in equine animal feed.Experiment 1: in vitro enzymatic hydrolysis of 偽-amylase in corn starch digestibility of three different processing treatments.Through in vitro enzymatic hydrolysis, the amount of reducing sugar was determined at each time point of enzymatic hydrolysis of corn treated with different processing.The amount of net reduced sugar per hour and the consumption and consumption rate of amylose and amylopectin in maize were compared to analyze the digestibility of starch during 8 h enzymatic hydrolysis.The total amount of reducing sugar produced in the extruded corn group was higher than that in the corn flour group (16.98 mg), and that in the steam pressed corn group was higher than that in the corn flour group (9.88 mg).The cumulative consumption rate of amylose and amylopectin in extruded corn group was higher than that in corn flour group (14.02% and 12.5%, respectively), and the cumulative consumption rate of amylose and amylopectin in steam pressed corn group was 9.93% and 9.02% higher than that in corn flour group, respectively.Experiment 2: effect of different processing on digestion, metabolism and blood related indexes of half-year-old Yili Gongma.Twenty half-year-old Yili male horses with similar body weight and good health were selected and randomly divided into 4 groups, 5 in each group, fed diets of equal weight and equal proportion containing different treatments of corn, according to the principle of similar body weight.The enzyme group added 1 g of enzyme preparation to the same diet to carry out digestion and metabolism test.The results showed that: compared with the corn meal group,鑶ㄥ寲鐜夌背緇凞M鐨勬秷鍖栭噺鎻愰珮浜，

本文編號：1710942