不同植物油对艾塔瓦杂交山羊瘤胃体外发酵率和营养物质消化率的影响

A. Muktiani, Nur Arifah, W. Widiyanto
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引用次数: 3

摘要

本研究旨在确定补充植物油(玉米油、棕榈油和木棉籽油)对体外瘤胃发酵能力和营养物质消化率的影响。实验设计采用随机区组设计,根据瘤胃液采样时间进行四次处理和四次复制。四种处理,即R0=不补油的饲料;R1=R0+5%玉米油;R2=R0+5%棕榈油;R3=R0+5%木棉籽油。结果表明,添加5%植物油对瘤胃pH值、A/P比和能量转换效率没有影响(P>0.05)。添加5%植物油的总VFA、乙酸盐、丙酸盐、丁酸盐、甲烷和NH3均高于对照组(P<0.05)。与对照组相比,添加5%的原生动物、微生物蛋白、体外干物质消化率(IVDMD)、有机物消化率(IV OMD)和粗纤维消化率(iv CFD)较低(P<0.05)。原生动物种群数量下降,R1为58.76%;R2为66,89%;R3为43.33%。结果表明,添加5%的植物油可以减少原生动物的数量,增加VFA和NH3的产生。在其他处理中,添加5%木棉籽油的总VFA、乙酸盐、丙酸盐、丁酸盐和NH3含量最高。
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Influence of Different Vegetable Oils on In Vitro Ruminal Fermentability and Nutrient Digestibility in Ettawah Crossbred Goat
This research was aimed to determine the effect of supplementation of vegetable oil (corn oil, palm oil and kapok seed oil) on in vitro ruminal fermentability and nutrient digestibility. Experiment design used was Randomized Block Design with four treatments and four replication based on rumen fluid sampling time. The four treatments namely R0 = feed without oil supplementation; R1 = R0 + 5% corn oil; R2 = R0 + 5% palm oil; and R3 = R0 + 5% kapok seed oil. The result showed that supplementation of 5% vegetable oil did not affect (P>0,05) the rumen pH, A/P ratio, and efficiency of energy conversion. The total VFA, acetate, propionate, butyrate, methane and NH 3 was higher (P<0,05) in supplementation of 5% vegetable oil than he control. The population of protozoa, microbial protein, in vitro dry matter digestibility (IVDMD), organic matter digestibility (IVOMD), and crude fiber digestibility (IVCFD) was lower (P<0,05) in supplementation of 5% compared to the control. Population of protozoa decreased until 58,76% for R1; 66,89% for R2; and 43,33% for R3. It can be concluded that supplementation of 5% vegetable oil decreased the population of protozoa, increased the production of VFA and NH 3 . Supplementation of 5% kapok seed oil resulting the highest of total VFA, acetate, propionate, butyrate and NH 3 among other treatments.
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