碳水化合物的消化cho-dig-資料下載頁(yè)
2025-05-26 18:01本頁(yè)面
【正文】 vel 在組織水平是合成能量的基本分子 ? Acetate is the most abundant VFA produced by fermentation。 propionate = 2nd。 butyrate = 3rd 乙酸是通過(guò)發(fā)酵產(chǎn)生的最多揮發(fā)性脂肪酸，是丙酸二倍，丁酸三倍。 ? Exact ratios of acetate:propionate:butyrate vary with diet and feeding practices, but the ranking never changes 乙酸 :丙酸 :丁酸的比例會(huì)隨飼糧和飼養(yǎng)水平而變化，但排序不會(huì)變。 Effect of Forage:Concentrate Ratio on Proportion of Fatty Acids in the Rumen 粗精比對(duì)瘤胃中脂肪酸含量的影響 Molar Ratio摩爾比 Forage:Concentrate 粗精比 Acetate 乙酸 Propionate 丙酸 Butyrate 丁酸 100:0 75:25 50:50 40:60 20:80 Importance of VFA’s for Ruminants揮發(fā)性脂肪酸對(duì)反芻動(dòng)物的重要性 ? Feeding high starch diets (high in grain) increases the proportion of propionate and increases growth rate, feed efficiency and milk production pared to feeding high fiber diets. 與飼喂高纖維飼糧相比，飼喂高淀粉飼糧（谷物含量高）提高丙酸的比例，進(jìn)而提高生長(zhǎng)速度、飼料轉(zhuǎn)化率和奶產(chǎn)量。 ? Feeding high fiber diets (high in roughages) increases the proportion of acetate and increases fat content of milk in cows. Growth rate, feed efficiency and milk production will be lower, pared to high grain diets. 與飼喂高谷物飼糧相比，飼喂高纖維飼糧（粗飼料含量高）提高乙酸的比例，進(jìn)而增加奶牛中乳脂含量。但生長(zhǎng)速度、飼料轉(zhuǎn)化率和奶產(chǎn)量將下降。 Importance of VFA’s for Ruminants揮發(fā)性脂肪酸對(duì)反芻動(dòng)物的重要性 ? Grinding, pelleting, and some additives (., monesin) increase production of propionate by altering the microbial population in the rumen 粉碎、制粒和一些飼料添加劑通過(guò)改變瘤胃中微生物數(shù)量提高丙酸產(chǎn)量 Importance of VFAs for Herbivores, Omnivores 揮發(fā)性脂肪酸對(duì)草食性家畜的重要性 ? In the cecum and colon, acetate is predominant product of fermentation followed by propionate and butyrate. 在盲腸和直腸，乙酸是由丙酸和丁酸發(fā)酵的前體物質(zhì)。 ? The VFA are the primary molecules used for energy in horses fed only forages. 馬僅飼喂牧草，揮發(fā)性脂肪酸是基本的提供能量的物質(zhì) Gases of Fermentation發(fā)酵氣體 ? Consist primarily of CO2 and CH4 發(fā)酵氣體主要由二氧化碳和甲烷組成 ? Neither is useful to the animal and is released into atmosphere during eructation 對(duì)于動(dòng)物來(lái)說(shuō)，兩者均無(wú)用處，只能通過(guò) 噯氣 形式排出體外。 End
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