结实期骆驼刺与紫花苜蓿混贮效果的研究

蒋慧; 方雷; 蒋涛; 李胜利

doi:10.3969/j.issn.1006-267x.2014.12.028

动物营养学报 >

2014 , Vol. 26 >Issue 12: 3765 - 3771

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.12.028

饲料资源开发 Feed Resources Development

结实期骆驼刺与紫花苜蓿混贮效果的研究

蒋慧 ,
方雷 ,
蒋涛 ,
李胜利

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1. 塔里木大学动物科学学院, 阿拉尔 843300;
2. 中国农业大学动物科技学院, 北京 100193

收稿日期: 2014-06-22

网络出版日期: 2014-12-05

基金资助

国家自然科学基金(30960259,31260562)

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Effects of the First Fruit Appearing Alhagi sparsifolia Shap. and Alfalfa Mixed Silage

JIANG Hui ,
FANG Lei ,
JIANG Tao ,
LI Shengli

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1. College of Animal Science, Tarim University, Alaer 843300, China;
2. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China

Received date: 2014-06-22

Online published: 2014-12-05

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摘要

本试验旨在确定结实期骆驼刺与紫花苜蓿混贮能否获得优良的青贮品质及其适宜混贮比例.采用单一苜蓿、单一骆驼刺及其二者不同重量百分比混合料(30%骆驼刺+70%苜蓿、50%骆驼刺+50%苜蓿、70%骆驼刺+30%苜蓿)为青贮原料,共5个处理,每个处理3个重复.通过分析青贮前、后的化学成分,鉴定青贮饲料感官品质和发酵品质.结果表明: 2种牧草混合后,与单一苜蓿相比,显著或极显著提高了青贮原料的干物质、酸性洗涤纤维、中性洗涤纤维和可溶性碳水化合物含量(P<0.05或P<0.01);青贮90 d后,混贮料的乙酸含量显著高于单一骆驼刺青贮(P<0.05),单一骆驼刺青贮中未检测出丙酸含量;混贮料的氨态氮/总氮、pH、乙酸、丙酸、正丁酸、异丁酸、异戊酸、甲醇含量显著或极显著低于单一苜蓿青贮(P<0.05或P<0.01),其乳酸含量和乳酸/乙酸显著或极显著高于单一苜蓿青贮(P<0.05或P<0.01).因此,混贮达到了既能改善苜蓿的发酵品质,又能软化骆驼刺的刺状花梗的目的,感官品质优良;骆驼刺占混贮料的30%时,可改善苜蓿青贮品质.

关键词： 骆驼刺; 苜蓿; 混贮品质

本文引用格式

蒋慧 , 方雷 , 蒋涛 , 李胜利 . 结实期骆驼刺与紫花苜蓿混贮效果的研究[J]. 动物营养学报, 2014 , 26(12) : 3765 -3771 . DOI: 10.3969/j.issn.1006-267x.2014.12.028

Abstract

The objective of this study was to evaluate the effects of the first fruit appearing Alhagi sparsifolia Shap. (A. sparsifolia Shap.) and alfalfa mix-ensiling on silage quality and appropriate proportion. The 100% alfalfa, 100% first flower appearing A. sparsifolia Shap., and mixtures of their different weight percentages (30% A. sparsifolia Shap.+70% alfalfa, 50% A. sparsifolia Shap.+50% alfalfa, 70% A. sparsifolia Shap.+30% alfalfa) were used in this experiment and each processing repeated three times. After 90 d of ensiling, according by the chemical composition detected both for fresh forages and silages, the sensory quality and silage quality were evaluated. The results showed that the contents of dry matter, acid detergent fiber, neutral detergent fiber and water soluble carbohydrates in mixed fresh forages were significantly higher than those in single alfalfa (P<0.05 or P<0.01); acetic acid content was significantly higher in mixed silage than that in single A. sparsifolia Shap. silage (P<0.05). The propionic acid content was not detectable in single A. sparsifolia Shap. silage. ammonia nitrogen/total nitrogen, pH and the contents of acetic acid, propionic acid, n-butyric acid, isobutyric acid, isovaleric acid and methanol were significantly lower than those in single alfalfa silage (P<0.05 or P<0.01), however, lactic acid and lactic acid/acetic acid in mixed silage were significantly higher than those in single alfalfa silage (P<0.05 or P<0.01). Mix-ensiling can improve silage quality of alfalfa, and soften the camel thorn spiny of the first fruit appearing A. sparsifolia Shap. Mixed silages are excellent in sensory quality and aerobic stability. For the advantage of mix-ensiling, it is suggested that A. sparsifolia Shap. of 30% would be included among mixtures.

Key words： Alhagi sparsifolia Shap.; alfalfa; mix-silage quality

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