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提高玉米秸秆饲料化品质的食用菌筛选

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为改善玉米秸秆加工制备的粗饲料其营养价值低且适口性差等问题,提高玉米秸秆饲料品质,本研究基于ITS条形码进行分类学鉴定的8株食用菌(S1~S8),以玉米秸秆为唯一碳源进行生物发酵培养,通过秸秆中木质纤维素的降解率、粗脂肪和粗蛋白质含量等比对筛选适合于玉米秸秆饲料化的菌株.研究结果表明:S4糙皮侧耳(Pleurotus ostreatus)降解纤维素和木质素的能力最强,达到47.31%和71.39%.S1斑玉蕈(Hypsizygus marmoreus)对半纤维素的降解能力最好,为61.91%.S2肺形侧耳(Pleurotus pulmonarius)粗蛋白质含量提高效果最好,达145%,饲料占比达12.48%.S1斑玉蕈粗脂肪含量提升效果最好,达495%,饲料占比达8.57%.
Screening of edible fungi for improving the feed quality of corn straw
In order to improve the low nutritional value and poor palatability of the coarse feed prepared from the processing of corn straw and the quality of corn straw feed.In this study,8 strains of edible fungi(S1~S8)were taxonomically identified based on ITS bar code,and corn straw was used as the sole carbon source for biological fermentation culture.The strains suitable for corn straw feed were screened by comparing the degradation rate of lignocellulose,the contents of crude fat and crude protein in the straw.The results showed that the ability of S4 Pleurotus ostreatus to degrade cellulose and lignin was the highest,reaching 47.31%and 71.39%.The best degradation capacity of S1 Hypsizygus marmoreus for hemicellulose was 61.91%.The crude protein content of S2 Pleurotus pulmonarius was improved by 145%,and the proportion of feed was 12.48%.The increase effect of crude fat content of S1 Hypsizygus marmoreus was 495%,and the proportion of feed was 8.57%.

edible funguscorn straw feedlignin degradationnutrient content

黄泰富、于洪文、黄利春、韩雪容

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长春理工大学生命科学技术学院,吉林长春 130000

中国科学院东北地理与农业生态研究所,吉林长春 130000

兴安盟农牧科学研究所,内蒙古乌兰浩特 137400

吉林农业大学食药用菌教育部工程研究中心,吉林长春 130000

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食用菌 玉米秸秆饲料化 木质素降解 营养成分

黑土地保护与利用科技创新工程专项资助国家自然科学基金面上项目吉林省发展改革委员会产业技术与研究开发项目

XDA28010502319712522020C028-3

2024

中国饲料
中国饲料工业协会

中国饲料

北大核心
影响因子:0.577
ISSN:1004-3314
年,卷(期):2024.(3)
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