Relationship between the Methane Production and the CNCPS Carbohydrate Fractions of Rations with Various Concentrate/roughage Ratios Evaluated Using In vitro Incubation Technique.
Relationship between the Methane Production and the CNCPS Carbohydrate Fractions of Rations with Various Concentrate/roughage Ratios Evaluated Using In vitro Incubation Technique.
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使用体外培养技术评估不同精粗饲料比例的日粮中甲烷产量与 CNCPS 碳水化合物分数之间的关系
DOI：
10.5713/ajas.2013.13245
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发表时间：
2013-12
期刊：
影响因子：
--
通讯作者：
Zhao G
中科院分区：
文献类型：
--
作者：
Dong R;Zhao G
本试验旨在研究奶牛瘤胃发酵过程中甲烷（CH 4）产生量与饲料中康奈尔净碳水化合物和蛋白质系统（CNCPS）碳水化合物组分的关系，以及CNCPS碳水化合物组分作为模拟CH 4产生量的日粮变量的适宜性。将45份精粗比为10：90、20：80、30：70、40：60和50：50的牛日粮配制为饲料样品。采用Menke和Steingass气体试验测量CH 4产量。将进料样品孵育48小时，并使用气相色谱法分析CH 4产生。统计分析表明，CH 4产量（mL）与CNCPS碳水化合物组分（g）密切相关，即CA（糖）; CB 1（淀粉和果胶）; CB 2（可用的细胞壁）以多线性模式：CH 4 =（89.16±14.93）CA+（124.10±13.90）CB 1+（30.58±11.72）CB 2+（3.28±7.19），R2 = 0.81，p<0.0001，n = 45。使用10个口粮的模型的验证表明，甲烷生产的口粮牛可以准确地预测的基础上CNCPS碳水化合物馏分。试验表明，CNCPS碳水化合物组分CA、CB 1和CB 2是预测体外瘤胃发酵CH 4产生量的适宜饲粮变量。
The objective of the trial was to study the relationship between the methane (CH4) production and the Cornell Net Carbohydrate and Protein System (CNCPS) carbohydrate fractions of feeds for cattle and the suitability of CNCPS carbohydrate fractions as the dietary variables in modeling the CH4 production in rumen fermentation. Forty-five rations for cattle with the concentrate/roughage ratios of 10:90, 20:80, 30:70, 40:60, and 50:50 were formulated as feed samples. The Menke and Steingass’s gas test was used for the measurement of CH4 production. The feed samples were incubated for 48 h and the CH4 production was analyzed using gas chromatography. Statistical analysis indicated that the CH4 production (mL) was closely correlated with the CNCPS carbohydrate fractions (g), i.e. CA (sugars); CB1 (starch and pectin); CB2 (available cell wall) in a multiple linear pattern: CH4 = (89.16±14.93) CA+ (124.10±13.90) CB1+(30.58±11.72) CB2+(3.28±7.19), R2 = 0.81, p<0.0001, n = 45. Validation of the model using 10 rations indicated that the CH4 production of the rations for cattle could accurately be predicted based on the CNCPS carbohydrate fractions. The trial indicated that the CNCPS carbohydrate fractions CA, CB1 and CB2 were suitable dietary variables for predicting the CH4 production in rumen fermentation in vitro.
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DOI：
10.5713/ajas.2009.80613
发表时间：
2009-03-01
期刊：
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
影响因子：
--
作者：
Seo, S.;Lee, Sang C.;Ha, Jong K.
通讯作者：
Ha, Jong K.
影响因子：
3.3
作者：
SNIFFEN, CJ;OCONNOR, JD;RUSSELL, JB
通讯作者：
RUSSELL, JB
影响因子：
3.2
作者：
Shannak, S;Südekum, KH;Susenbeth, A
通讯作者：
Susenbeth, A
影响因子：
3.5
作者：
MOE, PW;TYRRELL, HF
通讯作者：
TYRRELL, HF
影响因子：
3.5
作者：
Ellis, J. L.;Kebreab, E.;France, J.
通讯作者：
France, J.