本文選題：體外產(chǎn)氣法 + 能量飼料��； 參考：《中國畜牧獸醫(yī)》2016年01期

【摘要】：試驗旨在通過體外產(chǎn)氣法評定反芻動物常用飼料原料的營養(yǎng)價值。飼料原料包括3種能量飼料(玉米、玉米皮、麩皮)和3種粗飼料(苜蓿草粉、苜蓿干草、玉米秸稈),通過體外發(fā)酵試驗,測定各種飼料原料2、6、12、24h累積產(chǎn)氣量、體外發(fā)酵參數(shù)及營養(yǎng)物質(zhì)降解率,并分析不同類型飼料發(fā)酵動力學(xué)參數(shù)及發(fā)酵動力學(xué)與營養(yǎng)成分之間的相關(guān)關(guān)系。結(jié)果表明,能量飼料中,玉米體外發(fā)酵24h的產(chǎn)氣量(GP24)、理論最大產(chǎn)氣量(A)最高,產(chǎn)氣曲線的平滑度(B)與其他能量飼料相比沒有顯著差異(P0.05);玉米的干物質(zhì)降解率(DMD)最高,玉米皮的中性洗滌纖維降解率(NDFD)最高,麩皮的粗蛋白質(zhì)降解率(CPD)最高;粗飼料間GP24差異不顯著(P0.05),苜蓿草粉的GP24、A、DMD、CPD均最高,而粗飼料間B部分差異不顯著(P0.05);GP24和A與粗蛋白質(zhì)(CP)、中性洗滌纖維(NDF)、酸性洗滌纖維(ADF)、灰分(Ash)均呈極顯著負(fù)相關(guān)關(guān)系(P0.01)。綜上所述,不同類型飼料間產(chǎn)氣量及動力學(xué)參數(shù)存在顯著差異,能夠為奶牛日糧配制提供參考。
[Abstract]:The aim of the experiment was to evaluate the nutritional value of common feed materials for ruminants by gas production in vitro. Feed raw materials include three kinds of energy feed (corn, corn husk, wheat bran) and three kinds of crude feed (alfalfa meal, alfalfa hay, corn straw). In vitro fermentation parameters and nutrient degradation rate, and analysis of different types of feed fermentation kinetic parameters and the relationship between fermentation kinetics and nutrient components. The results showed that the gas production of corn fermented for 24 hours in vitro was the highest, the theoretical maximum gas production was the highest, the smoothness of gas production curve was not significantly different from that of other energy feed, and the degradation rate of dry matter was the highest. The degradation rate of neutral detergent fiber (NDFDD) was the highest, the degradation rate of crude protein (CP) of wheat bran was the highest, the difference of GP24 between crude feed and alfalfa meal was not significant (P0.05N), and that of alfalfa meal was the highest. However, there was no significant difference in part B between roughage and crude protein (CP), neutral detergent fiber (NDFN), acid detergent fiber (ADFN), ash content (AshA), and there was a very significant negative correlation between P0.01 and crude protein, neutral detergent fiber, acid detergent fiber, and ash content. To sum up, there were significant differences in gas production and kinetic parameters among different types of feed, which could provide reference for the preparation of dairy cattle diet.
【作者單位】： 中國農(nóng)業(yè)科學(xué)院北京畜牧獸醫(yī)研究所動物營養(yǎng)學(xué)國家重點實驗室;北京中地種畜有限公司;CAAS-ICRAF農(nóng)用林業(yè)與可持續(xù)畜牧業(yè)聯(lián)合實驗室;東北農(nóng)業(yè)大學(xué)食品安全與營養(yǎng)協(xié)同創(chuàng)新中心;
【基金】：“十二五”科技支撐計劃課題(2012BAD43B01-2、2012BAD12B02-5) 中國阿根廷-奶牛營養(yǎng)調(diào)控與規(guī)范化飼養(yǎng)關(guān)鍵技術(shù)示范
【分類號】：S816

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王加啟，馮仰廉;不同來源可發(fā)酵碳水化合物和可降解氮合成瘤胃微生物蛋白質(zhì)效率的研究[J];畜牧獸醫(yī)學(xué)報;1996年02期

相關(guān)碩士學(xué)位論文 前1條

1 余群蓮;不同來源淀粉對肉牛瘤胃發(fā)酵及營養(yǎng)物質(zhì)消化代謝的影響[D];四川農(nóng)業(yè)大學(xué);2011年

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳偉健;王，

本文編號：1930274