Livestock is a vital source of methane and nitrous oxide gas which are considered as hazardous greenhouse gas (GHG) causing global warming. This study was conducted to assess GHG emissions from different livestock categories of different (small, medium, large) dairy farming in Bangladesh by using IPCC guideline 2006 and CIGR 2002. The emission rate of CH4, N2O (mainly emits from manure) is incr...

Slurry can be oxidized to eliminate undesirable emissions, including malodorous hydrogen sulfide (H(2)S). However, it is difficult to assess the optimal amount of oxidizing agent required. In this study, one cow and one pig manure, each in three particle size ranges were oxidized with 0-350 mg ozone/L manure. Redox and H(2)S concentration were measured continuously. During ozonation the manures...

Solid-liquid separation of manure is a method to produce nutrient and dry matter rich fractions with higher volumetric methane potential than that of the original liquid manure. Centrifugation and chemical precipitation and flocculation are efficient options for such separation. Centrifugation efficiency depends on factors such as manure type, G-force, and dewatering volume, while chemical prec...

Different mixtures were digested in a single-stage, batch, mixed, laboratory scale mesophilic anaerobic digester at the Biomass Research Centre Laboratory (University of Perugia). The yield and the composition of biogas from the different substrates were evaluated and the cumulative curves were estimated. Two experimental campaigns were carried out, the first on three mixtures (chicken, pig and...

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A rapid and cleanup-free ultrasound-assisted extraction method is proposed for the simultaneous extraction of oxytetracycline, tetracycline, chlortetracycline, and doxycycline in manure. The analytes were determined using high-performance liquid chromatography with ultraviolet detector. The influence of several variables on the efficiency of the extraction procedure was investigated by single-f...

Federal and state regulations are being promulgated under the Clean Air Act to reduce hazardous air emissions from livestock operations. Although much is known about air emissions from livestock operations in Europe, few data are available on emissions from livestock facilities in the United States and the management practices that may minimize these emissions. The objective of this study was t...

Manure derived from cattle, chickens, and goats can be used as compost has different nutrient content. The application of manure improve soil’s physical, chemical, biological properties thus increase plant growth productivity. purpose this study was to determine the effect various (cow, chicken, goat) on elephant grass cv Pakchong (Pennisetum purpureum cv. Pakchong). design a completely randomi...

This research was conducted to determine the effects of chemical fertilizers, some organic and control applications on seed yield agricultural characteristics fresh beans in 2021. The trial carried out Faculty Agriculture University Selçuk more precisely application station Prof. Dr. Abdülkadir AKÇİN. In study, pure bean lines PV2001, Riberia, PV2002, PV2003 developed by hybridization were used...