本文選題：酵母硒 + 黃芪多糖��； 參考：《動(dòng)物營(yíng)養(yǎng)學(xué)報(bào)》2016年12期

【摘要】：本文旨在研究酵母硒、黃芪多糖及其復(fù)合劑對(duì)半番鴨生長(zhǎng)性能、肉品質(zhì)和抗氧化能力的影響。從同一批飼養(yǎng)的22日齡半番鴨中挑選出體重相近的144只,隨機(jī)分為4組,每組3個(gè)重復(fù),每個(gè)重復(fù)12只鴨,試驗(yàn)期為49 d。采用2×2因子水平設(shè)計(jì),對(duì)照組飼喂基礎(chǔ)飼糧,試驗(yàn)Ⅰ組飼喂基礎(chǔ)飼糧+0.3%酵母硒,試驗(yàn)Ⅱ組飼喂基礎(chǔ)飼糧+300 mg/kg黃芪多糖,試驗(yàn)Ⅲ組飼喂基礎(chǔ)飼糧+復(fù)合劑(300 mg/kg黃芪多糖+0.3%酵母硒)。試驗(yàn)期間測(cè)定生長(zhǎng)性能指標(biāo),并于70日齡每組隨機(jī)選擇12只(每重復(fù)4只)進(jìn)行屠宰,測(cè)定其胸肌肉品質(zhì)和抗氧化指標(biāo)。結(jié)果顯示:1)試驗(yàn)Ⅰ組和試驗(yàn)Ⅱ組平均日增重、平均日采食量及料重比與對(duì)照組相比差異均不顯著(P0.05);試驗(yàn)Ⅲ組平均日增重顯著高于對(duì)照組(P0.05),平均日采食量和料重比與對(duì)照組無(wú)顯著差異(P0.05)。2)與對(duì)照組相比,試驗(yàn)Ⅰ組、試驗(yàn)Ⅱ組和試驗(yàn)Ⅲ組24 h p H均顯著或極顯著提高(P0.05或P0.01),48 h滴水損失率、蒸煮損失率、剪切力顯著或極顯著降低(P0.05或P0.01);試驗(yàn)Ⅲ組肉色紅度(a*)值顯著提高(P0.05);試驗(yàn)Ⅱ組和試驗(yàn)Ⅲ組肉色黃度(b*)值均顯著降低(P0.05)。3)試驗(yàn)Ⅰ組、試驗(yàn)Ⅱ組和試驗(yàn)Ⅲ組24~120 h的超氧化物歧化酶(SOD)、谷胱甘肽過(guò)氧化物酶(GSH-Px)活性及總抗氧化能力(T-AOC)均顯著或極顯著高于對(duì)照組(P0.05或P0.01);試驗(yàn)Ⅰ組、試驗(yàn)Ⅱ組48~120 h和72~120 h的丙二醛(M DA)含量分別顯著或極顯著低于對(duì)照組(P0.05或P0.01),試驗(yàn)Ⅲ組24~120 h的MDA含量極顯著低于對(duì)照組(P0.01)。隨儲(chǔ)存時(shí)間延長(zhǎng),各組SOD、GSH-Px活性和T-AOC均呈下降趨勢(shì),MDA含量則呈上升趨勢(shì),但3個(gè)試驗(yàn)組各抗氧化指標(biāo)的變化速度比對(duì)照組緩慢。4)酵母硒和黃芪多糖對(duì)肌肉24 h p H、剪切力、24~120 h的SOD活性、48~120 h的GSH-Px活性、120 h的M DA含量有顯著或極顯著交互作用(P0.05或P0.01)。由此可見(jiàn),酵母硒、黃芪多糖均可改善半番鴨肌肉品質(zhì)和提高抗氧化能力,降低脂質(zhì)過(guò)氧化程度,有效延長(zhǎng)貨架期,且二者對(duì)于肌肉抗氧化、p H和嫩度改善均具有明顯的協(xié)同效應(yīng)。
[Abstract]:The effects of yeast selenium, astragalus polysaccharide and its compound on growth performance, meat quality and antioxidant ability of muscovy duck were studied. 144 muscovy ducks of similar weight were selected from the same batch of 22-day-old muscovy ducks. They were randomly divided into 4 groups with 3 replicates in each group and 12 ducks in each replica. The experiment period was 49 days. A 2 脳 2 factor level design was used. The control group was fed with basic diet, the experimental group 鈪，

本文編號(hào)：1825966