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Effect of varying fermentation conditions with ensiling period and inoculum on photosynthetic pigments and phytol content in Italian ryegrass (Lolium multiflorum Lam.) silage

文献类型： 外文期刊

作者： Lv, Renlong 1 ; Elsabagh, Mabrouk 2 ; Obitsu, Taketo 4 ; Sugino, Toshihisa 4 ; Kurokawa, Yuzo 4 ; Kawamura, Kensuke 5 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou, Hainan, Peoples R China

2.Kafrelsheikh Univ, Fac Vet Med, Dept Nutr & Clin Nutr, Kafr Al Sheikh, Egypt

3.Nigde Univ, Fac Agr Sci & Technol, Dept Anim Prod & Technol, Nigde, Turkey

4.Hiroshima Univ, Grad Sch Integrated Sci Life, 1-4-4 Kagamiyama, Higashihiroshima 7398528, Japan

5.Japan Int Res Ctr Agr Sci, Tsukuba, Ibaraki, Japan

关键词： chlorophyll; ensiling; Italian ryegrass; lactic acid bacteria; phytol

期刊名称：ANIMAL SCIENCE JOURNAL （ 影响因子：1.749； 五年影响因子：1.909 ）

ISSN： 1344-3941

年卷期：

页码：

收录情况： SCI

摘要： This study aimed to investigate the effect of an ensiling period (Experiment 1) and adding lactic acid bacteria (LAB, Experiment 2) on the changes in carotenoid, chlorophyll, and phytol in ensiled Italian ryegrass (IR, Lolium multiflorum Lam.). In Experiment 1, the IR herbage ensiled into plastic bags was analyzed for the contents of photosynthetic pigments and phytol over a 5-week period. During the ensiling process, the beta-carotene content decreased (p < .05), whereas the lutein content did not change. Although the chlorophyll content decreased (p < .05) after ensiling, the phytol content barely changed until week 5. In Experiment 2, IR herbage was ensiled without additive, as a Control, or with LAB for 60 days. The pH was lower (p < .05) and lactic acid content was higher (p < .05) for the LAB silage than for the Control. The chlorophyll content in silage was not affected by the LAB; however, the beta-carotene content was higher (p < .05) for the LAB silage than for the Control. Phytol and lutein contents in the herbage did not change after ensiling. These results indicate that phytol and lutein in IR herbage can be preserved well in silage, irrespective of their fermentation condition.

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