Hao Jianwei, Liu Shuang, Luo Aiguo, Zhao Jia, Shi Shengli, Zhang Yun, Li Chujun
Department of Biological Science and Technology, Jinzhong University, Jinzhong 030619, China.
Institute of Loess Plateau, Shanxi University, Taiyuan 030006, China.
Animals (Basel). 2023 Jan 28;13(3):452. doi: 10.3390/ani13030452.
Livestock manure is an important component of agricultural organic waste, and in recent years, with the development of research on the bioconversion of manure, BSFs have been proven to be useful in the treatment of a variety of livestock wastes. In-depth research on the composition of manure and its effect on the development of BSFL is, however, very scarce. The purpose of this study was to identify the parameters that influenced the growth of BSFL that was fed fattening pig manure. The pH, moisture, and nutrients of the fattening manures (namely, nursery, growing, and finishing pig manures) were measured. To examine the influence of manure types on larval growth, 100 larvae were inoculated in 100 g of each type of manure in triplicate. According to the findings, larvae fed finishing pig manure had the lowest dry weight (30.2 ± 6.1 mg) compared to those fed growing (58.2 ± 7.3 mg) or nursery (65.5 ± 6.2 mg) pig manure. The correlation coefficients () between the nutrients in the manure and the weight of the larvae were calculated. Hemicellulose had the greatest || value (0.9569). Further research revealed that larvae raised on hemicellulase-pretreated finishing pig manure frequently weighed 21-30% (days 2-8) more than larvae raised on control manure. In conclusion, hemicellulose was a significant component that might hinder larval growth. The results of this study could be used to improve the system before it is put into use.
畜禽粪便作为农业有机废弃物的重要组成部分，近年来，随着粪便生物转化研究的发展，黑水虻已被证明可有效处理多种畜禽粪便。然而，针对粪便成分及其对黑水虻幼虫发育影响的深入研究却极为匮乏。本研究旨在确定影响以育肥猪粪便为食的黑水虻幼虫生长的参数。对育肥猪粪便（即保育猪、生长猪和育肥猪粪便）的pH值、水分和养分进行了测定。为检验粪便类型对幼虫生长的影响，将100只幼虫接种到100克每种类型的粪便中，重复三次。结果显示，与取食生长猪粪便（58.2±7.3毫克）或保育猪粪便（65.5±6.2毫克）的幼虫相比，取食育肥猪粪便的幼虫干重最低（30.2±6.1毫克）。计算了粪便中的养分与幼虫体重之间的相关系数（）。半纤维素的||值最大（0.9569）。进一步研究表明，以半纤维素酶预处理的育肥猪粪便饲养的幼虫，在第2至8天的体重通常比以对照粪便饲养的幼虫重21%至30%。综上所述，半纤维素是可能阻碍幼虫生长的重要成分。本研究结果可用于在该系统投入使用前进行改进。
