Effect of microwave treatment on chemical composition and in sacco digestibility of wheat straw in yak cow

被引:14
|
作者
Dong, SK [1 ]
Long, RJ
Zhang, DG
Hu, ZZ
Pu, XP
机构
[1] Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China
[2] Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Peoples R China
[3] Gansu Agr Univ, Grassland Sci Coll, Lanzhou 730070, Peoples R China
来源
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES | 2005年 / 18卷 / 01期
关键词
wheat straw; microwave; dry matter; crude protein; acid detergent fibre; in sacco degradability;
D O I
10.5713/ajas.2005.27
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Wheat straw was treated with microwave for 4 min and 8 min at a power of 750 W and frequency of 2,450 MHz. Chemical compositions of untreated, 4 min treated and 8 min treated Straws were analyzed and in sacco degradabilities of all these straws in yak rumens were measured. Microwave treatment didn't significantly (p > 0.05) affect the chemical composition of the straw. In sacco dry matter (DM) degradability of the straw after 18 h incubation in rumen was significantly (p < 0.01) improved by microwave treatment. In sacco crude protein (CP) degradability of the straw was not (p > 0.05) affected by microwave treatment. In sacco organic matter (OM) degradability of the straw was increased (p < 0.01) by around 20% for both the 4 min and 8 min microwave treatment, that of acid detergent fibre (ADF) was increased (p < 0.01) by 61.6% and 62.8%, and that of ash free ADF was enhanced by 72.1% and 69.6% for the 4 min and 8 min microwave treatment respectively. No significant difference was observed between the 4 min and 8 min microwave treatment on the degradability of DM, OM, CP, ADF and ash-free ADF of the straw.
引用
收藏
页码:27 / 31
页数:5
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