紫花苜蓿和黑麦草茎形态学、化学组成和养分瘤胃降解率与剪切力的相互关系

doi:10.3864/j.issn.0578-1752.2009.09.047

中国农业科学 ›› 2009, Vol. 42 ›› Issue (9): 3374-3380 .doi: 10.3864/j.issn.0578-1752.2009.09.047

• 研究简报 • 上一篇

紫花苜蓿和黑麦草茎形态学、化学组成和养分瘤胃降解率与剪切力的相互关系

刘丽,杨在宾,杨维仁,姜淑贞,张桂国,姚宝强

(山东农业大学动物科技学院)

收稿日期:2008-12-01 修回日期:2009-03-18 出版日期:2009-09-10 发布日期:2009-09-10
通讯作者: 杨在宾

Correlations Among Shearing Force, Morphological Characteristics, Chemical Compositions, and in situ Degradibility of Alfalfa Stem and Rye Grass Stem#br#

LIU Li, YANG Zai-bin, YANG Wei-ren, JIANG Shu-zhen, ZHANG Gui-guo, YAO Bao-qiang#br#

(山东农业大学动物科技学院)

Received:2008-12-01 Revised:2009-03-18 Online:2009-09-10 Published:2009-09-10
Contact: YANG Zai-bin

摘要/Abstract

摘要：

【目的】研究盛花期紫花苜蓿与灌浆期冬牧70黑麦草茎形态学、化学组成及养分48 h瘤胃降解率与剪切力之间的相关性。【方法】采集2种牧草后,测定茎直径、长度、重量和线性密度,测定剪切力、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、木质素、纤维素及半纤维素含量,用尼龙袋法测定干物质(DM)、中性洗涤纤维(NDF)48 h瘤胃降解率,比较各项指标随茎直径变化的规律,探讨剪切力与各项指标之间的相关性。【结果】盛花期紫花苜蓿茎的线性密度、剪切力、木质素含量随直径增大而提高,直径、线性密度、木质素含量与剪切力均呈线性正相关(P＜0.01);含水量随直径增大而降低,两者之间存在线性负相关(P＜0.01);DM、NDF 48 h瘤胃降解率与剪切力存在线性负相关(P＜0.05)。灌浆期黑麦草茎的茎厚、线性密度、酸性洗涤纤维(ADF)、木质素、纤维素、含水量、剪切力均随着外直径的增大而提高,外径、茎厚、线性密度、ADF、木质素和含水量均与剪切力呈线性正相关(P＜0.05);DM、NDF 48 h瘤胃降解率与剪切力无相关性(P＞0.05)。【结论】对于盛花期紫花苜蓿及灌浆期冬牧70黑麦草,茎剪切力受形态学指标、化学组成的综合影响;紫花苜蓿茎剪切力与DM、NDF48 h瘤胃降解率之间存在显著负相关,因此可用剪切力估计紫花苜蓿茎养分降解率的大小。黑麦草茎剪切力与养分降解率之间无显著相关。

关键词: 紫花苜蓿')">紫花苜蓿, 冬牧70黑麦草, 剪切力, 形态学指标, 化学成分, 降解率

Abstract:

【Objective】 The objectives of this study were to investigate the relationships of shearing force with morphological characteristics, chemical compositions, and in situ degradability in 48 h of alfalfa (Medicago sativa L.) stem and Dongmu-70 rye grass (Secale cereale L.) stem. 【Method】 The diameter, length,weight and linear density of stem were measured after sample collection. Shearing force was measured. Meanwhile, the content of moisture were measured, neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin, cellulose and hemicellulose were measured. Three Xiaowei sheep were used to determine in situ degradability in 48 h of DM and NDF of alfalfa stem and rye grass stem. 【Result】 The results showed that linear density, shearing force and lignin content of alfalfa stem increased as diameter increased. There were positive relationships of shearing force with diameter, linear density, and lignin content of alfalfa stem (P＜0.01). A negative correlation was found between shearing force and moisture content (P＜0.01). Negative correlations also were found between shearing force and DM degradability, NDF digestibility of alfalfa stem (P＜0.05). Linear density, stem thickness, ADF, lignin and moisture content increased when rye grass stem increased. There were positive relationships of shearing force with diameter, linear density, stem thickness, ADF, lignin and moisture content of rye grass stem (P＜0.05). In situ degradability of rye grass stem decreased with increasing shearing force, but the linear correlations were not significant (P＞0.05). 【Conclusion】 The results showed that the variance in stem shearing force of Alfalfa and rye grass are due to a combination of factors, including changes in chemical composition, morphological characteristics. DM and NDF degradability of alfalfa stem had negative relationships with shearing force. Shearing force could be used as an indicator of forage stem nutritive value. There were no negative relationships between shearing force and DM, NDF degradability of rye grass.

Key words: alfalfa')">alfalfa, Dongmu-70 rye grass, shearing force, morphological characteristic, chemical compositions, in situ degradability

刘丽,杨在宾,杨维仁,姜淑贞,张桂国,姚宝强 . 紫花苜蓿和黑麦草茎形态学、化学组成和养分瘤胃降解率与剪切力的相互关系[J]. 中国农业科学, 2009, 42(9): 3374-3380 .

LIU Li,YANG Zai-bin,YANG Wei-ren,JIANG Shu-zhen,ZHANG Gui-guo,YAO Bao-qiang
. Correlations Among Shearing Force, Morphological Characteristics, Chemical Compositions, and in situ Degradibility of Alfalfa Stem and Rye Grass Stem#br# [J]. Scientia Agricultura Sinica, 2009, 42(9): 3374-3380 .

0
/ / 推荐

导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks

链接本文: https://www.chinaagrisci.com/CN/10.3864/j.issn.0578-1752.2009.09.047

https://www.chinaagrisci.com/CN/Y2009/V42/I9/3374

[1]	徐晓俞,李爱萍,吴思逢,李程勋,郑开斌. 栀子鲜花花水和鲜花细胞液气相和液相的成分分析[J]. 中国农业科学, 2020, 53(22): 4710-4726.
[2]	龚成胜, 赵胜杰, 路绪强, 何楠, 朱红菊, 豆峻岭, 袁平丽, 李兵兵, 刘文革. 西瓜果实表皮蜡粉的化学成分与基因定位[J]. 中国农业科学, 2019, 52(9): 1587-1600.
[3]	陈桂华，邓化冰，张桂莲，唐文帮，黄璜. 水稻茎秆性状与抗倒性的关系及配合力分析[J]. 中国农业科学, 2016, 49(3): 407-417.
[4]	郁耀闯，王长燕. 黄土丘陵区典型农耕地土壤临界剪切力季节变化[J]. 中国农业科学, 2016, 49(21): 4149-4159.
[5]	魏清江1, 汪妙秋1, 曾知富2, 杨成泉1, 彭抒昂1, 刘永忠1. 南丰蜜橘化渣性评价及不同结果习性果实的品质比较[J]. 中国农业科学, 2014, 47(6): 1162-1170.
[6]	王红梅, 孙启忠, 花梅. 草甸草原区不同植物群落牧草的青贮效果[J]. 中国农业科学, 2013, 46(12): 2566-2575.
[7]	黄伟, 曹锦轩, 王道营, 徐为民, 张牧焓. 宰后鸭肉骨骼肌中caspase-3活化对嫩度的影响[J]. 中国农业科学, 2012, 45(7): 1372-1379.
[8]	王兆凤, 杨在宾, 杨维仁, 张桂国, 姜淑贞, 张崇玉, 刘丽, 崔秀梅. 玉米植株剪切力与其饲料特性变化规律和相互关系的研究[J]. 中国农业科学, 2012, 45(3): 509-521.
[9]	崔秀梅, 杨在宾, 杨维仁, 张桂国, 姜淑贞, 刘丽, 王兆凤. 作物秸秆剪切力与其饲料营养特性的关系[J]. 中国农业科学, 2012, 45(15): 3137-3146.
[10]	张有林，张润光，钟玉. 百里香精油的化学成分、抑菌作用、抗氧化活性及毒理学特性[J]. 中国农业科学, 2011, 44(9): 1888-1897.
[11]	韩富根, 史金钟, 王校辉, 宋鹏飞, 沈铮, 李永亮. 窝肥施用芝麻类有机物料对烤烟化学成分和香气质量的影响[J]. 中国农业科学, 2011, 44(14): 2980-2989 .
[12]	张喜娟,李红娇,李伟娟,徐正进,陈温福,张文忠,王嘉宇 . 北方直立穗型粳稻抗倒性的研究[J]. 中国农业科学, 2009, 42(7): 2305-2313 .
[13]	. 灌水方式对不同施肥水平烤烟产量和品质的影响[J]. 中国农业科学, 2009, 42(1): 173-179 .
[14]	罗欣,周光宏. 电刺激和延迟冷却对牛肉食用品质的影响[J]. 中国农业科学, 2008, 41(1): 188-194 .
[15]	白志川. 不同采收期川丹皮多组分化学成分变化规律研究[J]. 中国农业科学, 2006, 39(05): 997-1003 .

紫花苜蓿和黑麦草茎形态学、化学组成和养分瘤胃降解率与剪切力的相互关系

Correlations Among Shearing Force, Morphological Characteristics, Chemical Compositions, and in situ Degradibility of Alfalfa Stem and Rye Grass Stem#br#

PDF

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0