Post-Graduation Program in Animal Health, Faculdade de Agronomia e Veterinária da Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil.
Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil.
Lett Appl Microbiol. 2024 Mar 1;77(3). doi: 10.1093/lambio/ovae023.
Equine farming generates a significant amount of waste, prompting the need for effective management. Composting enhanced by filamentous fungi holds promise for this purpose. This study focused on inoculating Aspergillus fumigatus isolates in composting horse bedding made with wood shavings (Pinus elliottii). The experiment lasted 90 days, with two treatment groups, control and inoculated, analyzing temperature, pH, electrical conductivity, total organic carbon and nitrogen content, and cellulose, hemicellulose, and lignin contents. Both treatments entered the thermophilic phase by the fourth day, reaching temperatures above 55°C and mesophilic maturation at 35 days (41 ± 0.2°C). The inoculated treatment exhibited higher electrical conductivity after 30 days and a more pronounced reduction in the total carbon content (42.85% vs. 38.29%) compared to the control. While there was no significant nitrogen difference, the inoculated treatment had a sharper reduction in carbon/nitrogen ratio, and cellulose and hemicellulose contents. Both treatments showed low coliform counts, no Salmonella sp., and reduced Strongyloides sp. larvae. Inoculating A. fumigatus in saturated horse bedding made from wood shavings improved compost quality, providing a possibility for sustainable equine farming waste treatment.
马养殖产生大量废弃物，因此需要进行有效的管理。丝状真菌增强堆肥在这方面具有应用潜力。本研究专注于在木屑（湿地松）马垫料中接种烟曲霉分离株。实验持续了 90 天，有两个处理组，对照组和接种组，分析温度、pH 值、电导率、总有机碳和氮含量以及纤维素、半纤维素和木质素含量。两组在第四天都进入了高温阶段，温度超过 55°C，在第 35 天进入中温成熟阶段（41 ± 0.2°C）。接种组在第 30 天后电导率更高，与对照组相比，总碳含量下降更明显（42.85%对 38.29%）。虽然氮含量没有显著差异，但接种组的碳/氮比、纤维素和半纤维素含量下降更明显。两种处理方法的大肠菌群计数均较低，未检出沙门氏菌，旋毛虫幼虫数量减少。在饱和的木屑马垫料中接种烟曲霉可以改善堆肥质量，为可持续的马养殖废弃物处理提供了一种可能。
