Effects of Moisture and Additives on Amaranthus retroflexus Silage

doi:10.11733/j.issn.1007-0435.2012.02.029

›› 2012, Vol. 20 ›› Issue (2): 373-377.DOI: 10.11733/j.issn.1007-0435.2012.02.029

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Effects of Moisture and Additives on Amaranthus retroflexus Silage

LIANG Chao¹, WU Zhao-hai¹, XU Qing-fang¹, YU Zhu², BAI Chun-sheng³, SHI Yong-hong⁴, LIU Jian-ning⁴, QIAO Yu¹

1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China;
2. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
3. College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning Province 110866, China;
4. Animal Husbandry and Veterinary Institute, Shanxi Academy of Agricultural Sciences, Taiyuan, Shanxi Province 030032, China

Received:2011-09-06 Revised:2011-12-25 Online:2012-04-15 Published:2012-07-05

晾晒与添加剂对反枝苋青贮饲料品质的影响

梁超¹, 吴兆海¹, 许庆方¹, 玉柱², 白春生³, 石永红⁴, 刘建宁⁴, 乔羽¹

1. 山西农业大学动物科技学院, 山西太谷 030801;
2. 中国农业大学动物科学院, 北京 100193;
3. 沈阳农业大学园艺学院, 辽宁沈阳 110866;
4. 山西省农科院畜牧兽医研究所, 山西太原 030032

通讯作者: 许庆方,E-mail:xqfsx@sohu.com
作者简介:梁超(1988- ),女,山西长治人,硕士研究生,研究方向为牧草栽培、草产品加工与利用,E-mail:liangchaooye@163.com
基金资助:
山西省科技攻关计划项目(20100311052)(20080311030-2);"十二五"国家科技支撑计划(2011BAD17B02);山西省高等学校教学改革项目(J2011027);国家牧草产业技术体系(CARS-35)资助

Abstract

Abstract: The effects of moisture and formic acid or sucrose on Amaranthus retroflexus silage were studied. Fresh or wilted A. retroflexus at flowering stages were packed and ensilaged for 360 d with sucrose (2%) or formic acid (6 mL·kg^-1). Results showed that the pH and lactic acid content of wilted A. retroflexus silage were similar to that of fresh A. retroflexus silage, whereas acetic acid content was increased (P<0.01) and ammonia nitrogen content was reduced (P<0.05). Nitrate content was reduced significantly by ensiling. The quality of Amaranthus retroflexus silage was not improved significantly compared to control. The silage fermentation quality was improved by formic acid or sucrose which reduced the pH and ammonia nitrogen content significantly (P<0.01) and increased lactic acid content (P<0.01).

Key words: Amaranthus retroflexus, Silage, Moisture content, Additives

摘要： 为探究含水量及添加剂(甲酸和蔗糖)对反枝苋(Amaranthus retroflexus)青贮饲料品质的影响,以开花期的反枝苋为原料,在鲜贮和晾晒2种条件下分别设置甲酸(6 mL·kg^-1)和蔗糖(2%)处理,以不使用任何添加剂为对照,袋装青贮360 d。结果表明:晾晒处理与鲜贮的反枝苋青贮饲料pH值和乳酸含量均无显著差异,而乙酸含量极显著增加(P<0.01),氨态氮含量显著降低(P<0.05),通过青贮硝酸盐含量显著降低,青贮饲料品质无显著差异。添加甲酸和蔗糖能够改善反枝苋青贮饲料的发酵品质,极显著降低反枝苋青贮饲料的pH值和氨态氮含量并提高乳酸生成量(P<0.01)。

关键词: 反枝苋, 青贮, 含水量, 添加剂

CLC Number:

S816.5

LIANG Chao, WU Zhao-hai, XU Qing-fang, YU Zhu, BAI Chun-sheng, SHI Yong-hong, LIU Jian-ning, QIAO Yu. Effects of Moisture and Additives on Amaranthus retroflexus Silage[J]. , 2012, 20(2): 373-377.

梁超, 吴兆海, 许庆方, 玉柱, 白春生, 石永红, 刘建宁, 乔羽. 晾晒与添加剂对反枝苋青贮饲料品质的影响[J]. , 2012, 20(2): 373-377.

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Effects of Moisture and Additives on Amaranthus retroflexus Silage

晾晒与添加剂对反枝苋青贮饲料品质的影响

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