Molecular Nutrition

Feeding Ramie: Silage Characteristics and Comparison of Nutrient Composition and Feeding Value before and after Silage

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  • Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China

Received date: 2017-07-17

  Online published: 2018-01-04

Abstract

To explore the effects of different chop lengths on the silage quality of feeding ramie, three groups of feeding ramie were ensiled for 60 days with 1, 2 and 3 cm, and then the experiment was conducted by sensory evaluation and laboratory analysis, and comparatively analyzed nutrient composition and feeding value before and after silage. The results showed as follows:1) the fermentation quality grade of feeding ramie silage of 1 and 2 cm groups was excellent, whereas the 3 cm group was well. 2) There were no significant differences on the ammonia nitrogen to total nitrogen and contents of acetic acid and propionic acid among 1, 2 and 3 cm groups (P>0.05). The pH in feeding ramie silage of 2 cm group was significantly lower than that of 1 and 3 cm groups (P<0.05). The lactic acid content in feeding ramie silage of 2 cm group was significantly higher than that of 1 and 3 cm groups (P<0.05). 3) There were no significant differences on the contents of crude protein, ether extract, crude fiber, neutral detergent fiber and acid detergent fiber in feeding ramie before and after silage (P>0.05), but the crude ash content of 3 cm group was significantly lower than that of other groups (P<0.05), and the gross energy of 1 and 3 cm groups was significantly higher than that of 2 cm group and feeding ramie group before silage (P<0.05). 4) There were no significant differences on the roughage dry matter intake (DMI), digestible dry matter (DDM) and organic matter digestibility (OMD) in feeding ramie before and after silage (P>0.05). But the relative feed value (RFV) of 1 cm group was minimum and significantly lower than that of 2 cm group (P<0.05). Comprehensive analysis, the feeding ramie silage with 2 cm chop length has a high practical production value which with better fermentation effect, nutrient composition and feeding value.

Cite this article

WANG Haowei, DAI Qiuzhong, HOU Zhenping, WANG Yanzhou, WU Duanqin . Feeding Ramie: Silage Characteristics and Comparison of Nutrient Composition and Feeding Value before and after Silage[J]. Chinese Journal of Animal Nutrition, 2018 , 30(1) : 293 -298 . DOI: 10.3969/j.issn.1006-267x.2018.01.035

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