【摘要】：文章探討不同能量水平日糧對(duì)肉種雞種蛋氨基酸及脂肪酸含量影響。選用27周齡體重相近愛拔益加(AA)肉種雞240羽,隨機(jī)分為4組,每組設(shè)6個(gè)重復(fù),每個(gè)重復(fù)10羽,產(chǎn)蛋率達(dá)5%時(shí)開始試驗(yàn),對(duì)照組飼喂基礎(chǔ)日糧,試驗(yàn)組飼糧能量水平分別為對(duì)照組80%、70%、50%,各組每日投料量及飼糧中粗蛋白質(zhì)、氨基酸等其他營(yíng)養(yǎng)水平均相同,40周齡結(jié)束試驗(yàn),測(cè)定種蛋中氨基酸及脂肪酸含量。結(jié)果表明,(1)與對(duì)照組相比,35周齡時(shí)50%限飼組蛋黃中必需氨基酸含量顯著升高(P0.05),而80%、70%限飼組有上升趨勢(shì),但差異不顯著(P0.05),其中70%、50%限飼組蛋黃中蘇氨酸、苯丙氨酸含量顯著升高(P0.05),各限飼組蛋黃中總游離氨基酸有升高趨勢(shì),但差異不顯著(P0.05);各限飼組對(duì)蛋清中必需氨基酸、總游離氨基酸含量均無顯著影響(P0.05),但70%、50%限飼組蛋氨酸含量顯著升高(P0.05)。(2)與對(duì)照組相比,35周齡時(shí)50%限飼組蛋黃中必需脂肪酸、不飽和脂肪酸含量顯著升高(P0.05);40周齡肉種雞70%、50%能量限飼組必需脂肪酸、飽和脂肪酸和不飽和脂肪酸均顯著下降(P0.05)。綜上所述,35周齡時(shí),肉種雞能量限飼可提高種蛋中氨基酸及脂肪酸含量,40周齡時(shí)不宜過度能量限飼。
[Abstract]:The effects of different energy levels on the content of amino acids and fatty acids in broiler eggs were studied. Two hundred and forty (AA) broilers of similar weight at the age of 27 weeks were randomly divided into 4 groups. Each group was divided into 6 replicates (10 replicates) and the egg laying rate was 5. The control group was fed basic diet. The dietary energy levels in the test group were 80% and 70% respectively as the control group. The daily feed intake and other nutritional levels of crude protein and amino acid in the diet were the same in each group. The contents of amino acids and fatty acids in the eggs were determined at the age of 40 weeks. The results showed that (1) compared with the control group, the content of essential amino acids in the egg yolk of the 50% restricted group was significantly higher than that of the control group at 35 weeks (P0.05), while the content of the essential amino acid in the egg yolk of the control group increased significantly (P0.05), but the difference was not significant (P0.05), and the threonine in the yolk of the 50% diet group was significantly higher than that of the control group (P0.05). The content of phenylalanine increased significantly (P0.05), and the total free amino acids in yolk of each restricted feeding group increased, but the difference was not significant (P0.05). The content of total free amino acids was not significantly affected (P0.05), but the content of methionine increased significantly (P0.05). (2) in the 50% diet group compared with the control group at 35 weeks of age, the essential fatty acids in the egg yolk of the 50% diet group were significantly higher than those of the control group. The content of unsaturated fatty acids increased significantly (P0.05), and the essential fatty acids, saturated fatty acids and unsaturated fatty acids decreased significantly (P0.05). In conclusion, energy restriction could increase the content of amino acids and fatty acids in eggs at 35 weeks of age and was not suitable for excessive energy restriction at 40 weeks of age.
【作者單位】： 東北農(nóng)業(yè)大學(xué)動(dòng)物科學(xué)技術(shù)學(xué)院;
【基金】：黑龍江省教育廳科學(xué)技術(shù)研究項(xiàng)目(12531036) 哈爾濱市應(yīng)用技術(shù)研究與開發(fā)項(xiàng)目(2016RAXXJ015)
【分類號(hào)】：S831.5

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