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There was a significant regression equation between rumen contents ADF (acid detergent fiber) and fecal ADF concentrations, as well as ADL (acid detergent lignin) concentrations.
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A recombinant inbred line maize population was used to map quantitative trait loci (QTL) for neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid detergent lignin (ADL) of leaf-sheath and stalk tissues.
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Samples were harvested from plots at two locations in 1998 and one in 1999 and assayed for neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL).
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As expected, acid detergent fiber (ADF) and neutral detergent fiber (NDF) values increased with increasing levels of bran and the changes in both cultivars were similar.
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Moisture, oil, fiber (as acid detergent fiber) and protein from solid samples of the seeds as mentioned, along with those of soybean (Glycine max), already analyzed by NIR and for serving as control for the variability of the method, were studied.
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The methods used were the gravimetric (neutral and acid detergent fibre) method, the enzymatic-gravimetric method for (insoluble and soluble fibre and the spectrophotometric method for pectic substances.
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Acid detergent fibre (ADF) values also decreased in bagasse and rice straw fermented by all the fungi.P.
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Plant feeding deterrents, such as, acid detergent fibre (ADF) and the inherent nature of the fruits ofAzadirachta indica, when consumed in large quantities to act as a purgative, could cause gastrointestinal upsets and diarrhoea.
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Dry season edible forage samples were analyzed for concentrations of crude protein (CP), neutral detergent fibre (NDF), acid detergent fibre (NDF), acid detergent lignin (ADL), cellulose (CL), soluble phenolics (SOPH) and proanthocyanidins (PAs).
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The neutral detergent fibre (NDF) ranged from 220 to 694 g kg-1 DM, while acid detergent fibre (ADF) ranged from 146 to 523 g kg-1 DM.
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| | In our experiment four 42 to 68kg Duroc×Taihu crossbred barrows were fitted with fistulas in the stomach and the caecum. For each barrow a spun nylon bag filled with a sample of ground rice straw was put in the cavity of the stomach or the caecum for 24 hr. and the changes in the contents of ADF, cellulose and lignin were measured with the improved Van Soest analytic method.The average rates of the disappearance (%) of ADF and cellulose in th gastric sample during the period of basal ration were—1.59 and 0.... | | 四头安装永久性胃瘘管和盲肠瘘管的杜洛克×太湖杂交阉猪(体重42—68公斤)用于本试验。将盛有稻草粉样品的尼龙绢袋分别放置于胃和盲肠内,历时24小时。取出后用改进的Van Soest法分析样品的酸性洗涤纤维(ADF)和木质素的变化。在饲喂基础日粮期,胃内样品的ADF和纤维素消失率分别为-1.59%和0.45%,而在盲肠内则分别为6.94%和10.60%。在饲喂试验日粮(即添喂人工瘤胃液)期间,则胃内相应为-1.21和1.21%,盲肠内为11.12%和15.10%,即试验期盲肠内ADF和纤维素的消化率比对照期分别增加60.23%,和42.45%,效果明显。 本试验中猪胃和盲肠内木质素基本上未被消化。 | | 文摘来源 | | Rice straw was ammoniated by evaporation of 30% NH4OH solution under plastic coverage for 1-1. 5 month. The crude protein content of the straws increased from 5.4% to 8.46% after ammoniation. The in vitro DMD, OMD for the treated and untreated straw were 49.51%, 50.03% and 41.73%,41.09% respectively. | | 用30%氨水处理稻草1~1.5月可使粗蛋白含量和干物质,有机物体外消化率分别从5.4%,41.73%,41.09%增至8.46%,49.51%,50.03%(P<0.01)。 三头装有瘤胃和皱胃瘘管的湖羊被用来研究饲喂含氨化稻草日粮(试验期)和含有未经处理的稻草日粮(对照期)时消化代谢的变化。试验日粮中精料粗蛋白含量比对用低31%。试验期湖羊对干物质,有机物,酸性洗涤纤维、纤维素的消化率未见有明显变化,氮贮留和瘤胃微生物蛋白会成量趋于提高,而微生物蛋白合成效率则又十分接近。饲喂试验日粮引起瘤胃pH下降,总挥发性脂肪酸增加,乙酸克分子比例提高,丁酸比例下降,氨氮和三氯乙酸沉淀蛋白浓度变化不大。 试验表明,用30%氨水处理稻草可提高营养价值。 | | 文摘来源 | | Three water buffalo cows (two with rumen and abomasum cannula and one with rumen cannula only) under barn feeding condition in winter were used in a series of experiment. Treatment of diet in three periods were as follows: (Ⅰ)rice straw only, (Ⅱ) Ⅰ +NPN, (Ⅲ) Ⅰ +Ⅱ+corn flour. Amount of OM intake was 3% and 21% higher for diet Ⅱ and Ⅲ than the value obtained from diet Ⅰ.Diets Ⅱ and Ⅲ increased the ruminal TVFA, NH_3-N, concentration. The amount and efficiency of MP synthesis were increased from 174.24g, 4.14 ... | | 用三头装有瘤胃瘘(其中二头装皱胃瘘)的成年母水牛,冬季舍饲,单喂稻草(Ⅰ期)和补充尿素硫酸铵(Ⅱ期)以及添喂玉米粉(Ⅲ期),研究三种日粮对水牛前胃消化代谢的影响。Ⅱ、Ⅲ期与Ⅰ期比较,有机物(OM)进食量分别提高3%和和21%,酸性洗涤纤维(ADF)消化率都稍有提高,总挥发性脂肪酸(TVFA)、NH_3-N浓度、每天微生物蛋白(MP)合成量和合成效率都有明显增加。Ⅱ、Ⅲ期通过皱胃的总氮(TN)和其中的NAN,MN,NH_3-N的比例也相应增加,尤其通过瘤胃氮(BPN)Ⅲ期增加63.70%。皱胃的氨基酸通过量,Ⅱ期较Ⅰ期有增加趋势,Ⅲ期与Ⅰ期相比,各种氨基酸通过量明显增加,且三期的氨基酸比例较为一致,EAA约占48%,NEAA52%左右。 | | 文摘来源 | |   | | << 更多相关文摘 |
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