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首页> 外文期刊>Journal of Animal Physiology and Animal Nutrition >Effects of plant extracts from Stryphnodendron adstringens (mart.) coville, Lafoensia pacari a. st.-hil, copaifera spp., and Pterodon emarginatus Vogel on in vitro rumen fermentation
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Effects of plant extracts from Stryphnodendron adstringens (mart.) coville, Lafoensia pacari a. st.-hil, copaifera spp., and Pterodon emarginatus Vogel on in vitro rumen fermentation

机译：植物提取物的影响来自斯特氏菌（Mart.）Coville，Lafoensia Pacari A. St.-hil，Copaifera SPP。和Petrodon Emarginatus Vogel在体外瘤胃发酵

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The effects of doses CTL (0 mg), 30, 300 and 3000 mg/L of extracts from Stryphnodendron adstringens (Mart.) Coville (SA), Lafoensia pacari A. St.-Hil (LP), Copaifera spp. (CO) and Pterodon emarginatus Vogel (PE) on ruminal fermentation were investigated in eight experiments conducted in randomized complete block designs. The in vitro system contained four fermentation vessels. Each treatment was allocated in one vessel in each run. Incubation was run four and five times with diets 50:50 and 10:90 (roughage to concentrate ratio) respectively. Incubation vessel was the experimental unit, and each incubation run was a block. All plant extracts negatively affected DM degradation at 3000 mg/L. In diet 50:50, SA-3000 increased the molar proportion of propionate (p < 0.05), yet it decreased the concentration of fermentation products (p < 0.05); LP-300 reduced ruminal ammonia nitrogen (NH3-N; 98 vs. 120 mg/dl for LP-300 and average of CTL and LP-30, respectively) and isobutyrate (p < 0.05); CO-300 reduced (p < 0.05) NH3-N (98 vs. 123 mg/dl for CO-300 and average of CTL and CO-30, respectively); and P. emarginatus had no positive effects on rumen fermentation (p > 0.05). In diet 10:90, SA-300 reduced (p < 0.001) NH3-N and total volatile fatty acids (VFA); LP-30 increased (p < 0.05) total VFA (85 vs. 63 mM for LP-30 and CTL, respectively), molar proportions of acetate and propionate, and had lower C-2:C-3 than CTL (3.6 vs. 4.3, respectively); CO-300 decreased acetate and increased propionate, reducing C-2:C-3 (p < 0.001; 2.8 vs. 3.6 for CO-300 and average of other doses, respectively); PE-30 and PE-300 reduced NH3-N by 14% and increased total VFA by 29% compared with CTL (p < 0.05). Further in vivo investigations may consider L. pacari (LP-30), Copaifera spp. (CO-300) oleoresin and P. emarginatus oleoresin (PE-30 and PE-300) in diets with high inclusion of concentrate.
机译：剂量CTL（0 mg）、30 mg/L、300 mg/L和3000 mg/L的马蹄金提取物（Mart.）在随机完全区组设计的八个实验中，研究了Coville（SA）、Lafoensia pacari A.St.-Hil（LP）、Copaifera spp.（CO）和Fertodon emarginatus Vogel（PE）对瘤胃发酵的影响。体外系统包含四个发酵容器。在每次运行中，每个治疗分配到一个容器中。分别以50:50和10:90（粗精比）的日粮进行四次和五次孵化。孵育容器是实验装置，每次孵育都是一个区块。所有植物提取物均对3000 mg/L的DM降解产生负面影响。在50:50的日粮中，SA-3000增加了丙酸的摩尔比例（p<0.05），但降低了发酵产物的浓度（p<0.05）；LP-300降低了瘤胃氨氮（NH3-N；LP-300分别为98和120 mg/dl，CTL和LP-30的平均值）和异丁酸（p<0.05）；CO-300降低了NH3-N（p<0.05）（CO-300分别为98和123 mg/dl，CTL和CO-30的平均值）；微缺芽孢杆菌对瘤胃发酵没有积极影响（P>0.05）。在10:90日粮中，SA-300降低了（p<0.001）NH3-N和总挥发性脂肪酸（VFA）；LP-30增加了总VFA（LP-30和CTL分别为85和63 mM）、醋酸盐和丙酸盐的摩尔比例（p<0.05），并且C-2:C-3低于CTL（分别为3.6和4.3）；CO-300降低了醋酸盐，增加了丙酸盐，降低了C-2:C-3（p<0.001；CO-300和其他剂量的平均值分别为2.8和3.6）；与CTL相比，PE-30和PE-300降低了14%的NH3-N，增加了29%的总VFA（p<0.05）。进一步的体内研究可以考虑L. pacari（LP－30）、Copaifera spp.（CO-300）油树脂和P. emarginatus oleoresin（PE-30和PE-300）在含有高浓度浓缩物的饮食中。

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