【摘要】：試驗(yàn)旨在對雉雞和AA肉雞肉品質(zhì)指標(biāo)和腸道氨基酸轉(zhuǎn)運(yùn)載體進(jìn)行比較研究,為探討二者在肉質(zhì)評定及中性和堿性氨基酸的吸收利用的差異因素上提供參考。選擇飼喂相同試驗(yàn)飼料的18周齡雉雞和8周齡AA肉雞各36只,分別隨機(jī)分為3個重復(fù),每個重復(fù)12只,測定并比較肉品質(zhì)及腸道氨基酸轉(zhuǎn)運(yùn)載體mRNA表達(dá)量。結(jié)果表明,雉雞胸肌和腿肌的肉色值都顯著高于AA肉雞(P0.05);雉雞胸肌和腿肌的滴水損失率都顯著低于AA肉雞(P0.05);雉雞胸肌的剪切力極顯著高于AA肉雞(P0.01),腿肌的剪切力顯著高于AA肉雞(P0.05)。雉雞十二指腸b~(0,+)AT和SAT2的mRNA表達(dá)量極顯著高于AA肉雞(P0.01),ATB~(0,+)的mRNA表達(dá)量顯著高于AA肉雞(P0.05);雉雞十二指腸b~(0,+)AT和SAT2的mRNA表達(dá)量極顯著高于AA肉雞(P0.01),ATB~(0,+)的mRNA表達(dá)量顯著高于AA肉雞(P0.05);雉雞空回腸CAT2,CAT3,ATB~(0,+)和y~+LAT1的mRNA表達(dá)量極顯著高于AA肉雞(P0.01);CAT1,SAT2,y~+LAT2的mRNA表達(dá)顯著高于AA肉雞(P0.05),SAT3的mRNA表達(dá)量顯著低于AA肉雞(P0.05)。試驗(yàn)說明雉雞的肉品質(zhì)指標(biāo)中肉色和滴水損失率優(yōu)于AA肉雞,嫩度差于AA肉雞;腸道氨基酸轉(zhuǎn)運(yùn)載體的轉(zhuǎn)運(yùn)效率高于AA肉雞。
[Abstract]:The aim of the experiment was to compare the quality indexes of pheasant and AA meat and the carrier of intestinal amino acid transport, and to provide a reference for the difference of meat quality assessment and absorption and utilization of neutral and alkaline amino acids between pheasants and chicken. Thirty-six 18-week-old pheasants and 36 8-week-old AA broilers fed the same diet were randomly divided into 3 repeats with 12 each. The meat quality and the expression of amino acid transport vector mRNA in intestinal tract were measured and compared. The results showed that the meat color value of pectoral muscle and leg muscle of pheasant chicken was significantly higher than that of AA broiler (P0.05), and the water loss rate of pectoral muscle and leg muscle of pheasant chicken was significantly lower than that of AA broiler (P0.05). The shear stress of pectoral muscle of pheasant was significantly higher than that of AA broiler (P0.01), and the shear stress of leg muscle of pheasant was significantly higher than that of AA broiler (P0.05). The mRNA expression of B0, AT and SAT2 in duodenum of pheasants was significantly higher than that of AA (P0.01), and the expression of mRNA in ATB~ (0,) was significantly higher than that of AA (P0.05). The mRNA expression of B0, AT and SAT2 in duodenum of pheasants was significantly higher than that of AA (P0.01), and the expression of mRNA in ATB~ (0,) was significantly higher than that of AA (P0.05). The mRNA expression of CAT2,CAT3,ATB~ (0,) and y ~ LAT1 in the empty ileum of pheasants was significantly higher than that of AA broilers (P0.01). The mRNA expression of CAT1,SAT2,y~ LAT2 was significantly higher than that of AA broilers (P0.05), and the mRNA expression of SAT3 was significantly lower than that of AA broilers (P0.05). The results showed that the meat color and water loss rate of pheasants was better than that of AA broilers, and the tenderness of pheasants was lower than that of AA broilers, and the transport efficiency of intestinal amino acid transport vectors was higher than that of AA broilers.
【作者單位】： 吉林大學(xué)動物科學(xué)學(xué)院;
【基金】：吉林大學(xué)大學(xué)生創(chuàng)新實(shí)驗(yàn)項(xiàng)目[2016A85372] 吉林省科技發(fā)展計劃項(xiàng)目[20140101131JC]
【分類號】：S831

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