College of Life Science, Shandong Agricultural University, Taian, Shandong, China.
College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, China.
J Anim Physiol Anim Nutr (Berl). 2018 Apr;102(2):596-599. doi: 10.1111/jpn.12782. Epub 2017 Jul 10.
Pre-treated maize stalk could be used for animal feed due to the improved digestibility. Steam explosion (SE) and solid-state fermentation (SSF) are two methods in maize stalk pre-treatment. To evaluate the effect of combination of SE and SSF on the maize stalk pre-treatment, the maize stalk was treated with steam explosion and microbial fermentation with Penicillium decumbens and Phanerochate chrysporium in this study. The steam explosion severity (logR ) affected component of the corn stover and then affected the SSF. The highest weight loss of substrate (23.20%), protein (12.71%) and cellulase filter paper activity (FPA) (7.42IU/g) could be obtained at logR = 3.64 and the IVDMD of SE-SSF-treated straw could reach 75.8%. The SE-SSF pre-treatment method could improve the utilization of straw as animal feed and overcome the shortage of feed source in animal husbandry.
经预处理的玉米秸秆由于消化率提高，可作为动物饲料。蒸汽爆破（SE）和固态发酵（SSF）是玉米秸秆预处理的两种方法。为了评估 SE 和 SSF 联合处理对玉米秸秆预处理的效果，本研究采用蒸汽爆破和青霉属和嗜热毁丝霉属微生物发酵对玉米秸秆进行处理。蒸汽爆破强度（logR）影响了玉米秸秆的成分，进而影响了 SSF。在 logR = 3.64 时，底物失重率（23.20%）、蛋白质（12.71%）和纤维素滤纸酶活性（FPA）（7.42IU/g）最高，SE-SSF 处理秸秆的 IVDMD 可达 75.8%。SE-SSF 预处理方法可提高秸秆作为动物饲料的利用率，克服畜牧业饲料来源短缺的问题。
