When 50MM FeSO4 was added to cow dung and poultry litter waste which had been processed in daily-fed batch digesters, digesters subsequently unfed showed a faster conversion of substrate and overloaded digesters stabilized within 48 h. Early stabilization of digesters was achieved by adding 20 or 50MM FeSO4 though the latter concentration was faster. When 20MM FeSO4 was added to the daily-fed cow dung and poultry litter waste digesters, it increased methanogenesis by 40% and 42%, respectively, and increased the turnover rate of total solids, volatile solids and volatile fatty acids and the number of methanogens.
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http://dx.doi.org/10.1007/BF00360890 | DOI Listing |
Heliyon
January 2025
Institute of Metal Research (IMR), Chinese Academy of Science, Wenhua Road, Shenyang, China.
Recently, researchers have used silver nanoparticles (AgNPs) coupled with humic acid (HA) as antimicrobial agents. Herein, AgNPs were prepared and coupled with humic acid for their antimicrobial activities. The as-prepared AgNPs coupled with humic acid (HA) were characterized by an atomic force microscope (AFM), X-ray powder diffraction (XRD), zeta potential, zeta sizer, Fourier-transform infrared (FT-IR) spectroscopy, and UV-VIS spectrophotometer.
View Article and Find Full Text PDFPathogens
January 2025
Research and Production Center for Microbiology and Virology, Almaty 050010, Kazakhstan.
While studying the prevalence and profile of antibiotic resistance among isolated from the feces of calves with signs of colibacillosis, a strain with a wide spectrum of drug resistance was isolated. Whole-genome sequencing, followed by bioinformatic processing and the annotation of genes of this strain, showed that the genome has a total length of 4,803,482 bp and contains 4986 genes, including 122 RNA genes. A total of 31% of the genes are functionally significant and represent 26 functional groups.
View Article and Find Full Text PDFParasit Vectors
January 2025
Melbourne Veterinary School, The University of Melbourne, Werribee, VIC, 3030, Australia.
Background: Gastrointestinal parasites such as nematodes and coccidia are responsible for significant economic losses in the goat industry globally. An indiscriminate use of antiparasitic drugs, primarily registered for use in sheep and cattle, in goats has resulted in drug-resistant gastrointestinal parasites. Very little is known about the gastrointestinal parasite control practices used by Australian dairy goat farmers that are pivotal for achieving sustainable control of economically important parasites.
View Article and Find Full Text PDFEnviron Monit Assess
January 2025
Pathogen-Host-Environment Interactions Research Laboratory, Institute of Biology, College of Science, University of the Philippines Diliman, 1101, Quezon City, Philippines.
Microbial eukaryotes are vital to global microbial diversity, but there is limited information about their composition and sources in contaminated surface waters. This study examined the pathogens and potential sources of microbial eukaryotic communities in polluted sink environments using the 18S rDNA amplicon sequencing combined with the fast expectation-maximization for microbial source tracking (FEAST) program. Six sampling sites were selected along the Pasig-Marikina-San Juan (PAMARISAN) River System, representing different locations within the waterway and classified as sinks (n = 12), whereas animal fecal samples collected from various farms were classified as sources (n = 29).
View Article and Find Full Text PDFVet Parasitol Reg Stud Reports
January 2025
Department of Biomedical and Diagnostic Sciences, University of Tennessee College of Veterinary Medicine, 2407 River Dr., Knoxville, TN 37996, USA.
The ascarid nematode, Toxocara vitulorum, is a destructive parasite of ruminants with a world-wide distribution that causes mortality in calves, especially those with poor nutrition. Reports of T. vitulorum are scarce in the continental U.
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