Evaluation of methods for the quantification of ether extract contents in forage and cattle feces

Barbosa, Marcília Medrado; Detmann, Edênio; Filho, Sebastião de Campos Valadares; Detmann, Kelly S.C.; Franco, Márcia de Oliveira; Batista, Erick Darlisson; Rocha, Gabriel Cipriano

doi:10.1590/0001-3765201720160708

Cited by 4 publications

(2 citation statements)

References 5 publications

(6 reference statements)

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“…The fecal crude fat content, also known as ether extract, was determined gravimetrically. However, ether extract values for cow feces vary due to analytical methods , and feeding regimes. , …”

Section: Methodsmentioning

confidence: 99%

“…The fecal crude fat content, also known as ether extract, was determined gravimetrically. However, ether extract values for cow feces vary due to analytical methods 27,28 and feeding regimes. 29,30 For feed analysis, around 300 g of mixed grass and maize silage or 600 g of concentrate feed were weighed into 1 L glass bottles and subsequently lyophilized for at least 48 h to dryness.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Experimental Study on the Transfer of Polychlorinated Biphenyls (PCBs) and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) into Milk of High-Yielding Cows during Negative and Positive Energy Balance

Krause,

Lamp,

Knappstein

et al. 2023

J. Agric. Food Chem.

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Dioxin-like polychlorinated biphenyls (dl-PCBs) as well as polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) are a major concern for food safety, especially in fat-containing foods of animal origin, such as milk. Due to the lipophilic character of PCDD/Fs and PCBs, it is of special interest to explore whether the metabolic state of high-yielding cows influences the transfer rates into milk. Five German Holstein cows were orally exposed to a mixture of 17 PCDD/Fs, 12 dl-PCBs, and 6 non-dioxin-like PCBs (ndl-PCBs) for two dosing periods of 28 days each. The first period covered the negative energy balance (NEB) after calving, while the second period addressed the positive energy balance (PEB) in late lactation. Each dosing period was followed by a depuration period of around 100 days. During the NEB phase, the transfer rates of 14 PCDD/Fs and 7 dl-PCBs quantified were significantly (p ≤ 0.1) higher compared to the PEB phase, indicating an influence of the metabolic state on the transfer. Furthermore, the congener-specific transfer rates (0.3−39%) were in the range of the results from former studies. This indicates that the milk yield of the exposed cows is not the only determining factor for the transfer of these congeners into milk.

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Section: Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Experimental Study on the Transfer of Polychlorinated Biphenyls (PCBs) and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) into Milk of High-Yielding Cows during Negative and Positive Energy Balance

Krause,

Lamp,

Knappstein

et al. 2023

J. Agric. Food Chem.

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Preliminary characterisation and valorisation of Ficus benjamina fruits for biofuel application

Ezealigo

Plaza

et al. 2022

Biomass Conv. Bioref.

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Ficus benjamina (FB) is a perennial plant that serves ornamental purposes. Its fruits are non-edible and considered 'waste' with no defined application. This paper discusses the valorisation and identification of the potential of Ficus benjamina fruits as a suitable biofuel feedstock. The whole fruit was characterized by scanning electron microscopy (SEM), energy dispersive X-ray (EDS), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and bomb calorimeter. In addition, the proximate and ultimate analyses were performed to determine their physical, thermal, and chemical properties for potential biofuel application. Pulverised Ficus benjamina fruits (PFB) have a porous morphology that makes them less dense with a crystallinity index of 25.5%. The moisture, ash, volatile matter, and fixed carbon contents were 9. 29, 6.26, 64.35, and 20.10%, respectively. The higher heating value (19.74 MJ/kg) and lower heating value (18.55 MJ/kg) are comparable to other biomass feedstocks. The results establish the possibility of using PFB as a solid biofuel.

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Usage UV Irradiation for Reducing Fungal Contamination of Loose Nuts in Al Jouf Markets

Moustafa

Taha

2020

Egyptian Academic Journal of Biological Sciences, G. Microbiolo

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Microbiology journal is one of the series issued twice by the Egyptian Academic Journal of Biological Sciences, and is devoted to publication of original papers related to the research across the whole spectrum of the subject. These including bacteriology, virology, mycology and parasitology. In addition, the journal promotes research on the impact of living organisms on their environment with emphasis on subjects such a resource, depletion, pollution, biodiversity, ecosystem…..etc www.eajbs.eg.net Provided for non-commercial research and education use. Not for reproduction, distribution or commercial use.

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Evaluation of methods for the quantification of ether extract contents in forage and cattle feces

Cited by 4 publications

References 5 publications

Experimental Study on the Transfer of Polychlorinated Biphenyls (PCBs) and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) into Milk of High-Yielding Cows during Negative and Positive Energy Balance

Experimental Study on the Transfer of Polychlorinated Biphenyls (PCBs) and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) into Milk of High-Yielding Cows during Negative and Positive Energy Balance

Preliminary characterisation and valorisation of Ficus benjamina fruits for biofuel application

Usage UV Irradiation for Reducing Fungal Contamination of Loose Nuts in Al Jouf Markets

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