Analysis of porphyrins from the urine, blood, and feces of a congenital porphyria patient showed coproand uroporphyrins from the blood contained more than 95% of the Type I isomer, and those from stool and urine, about 90%. The intermediate hepta-, hexaand pentacarboxylic porphyrins from the urine contained 70% or less of the Type I isomer. The results are discussed and compared with those in p...

The objective of this study was to evaluate the metabolic profile of cattle fed with or without zearalenone (ZEN) and sterigmatocystin (STC)-contaminated diets using a gas chromatography-mass spectrometry metabolomics approach. Urinary samples were collected from individual animals (n = 6 per herd) from fattening female Japanese Black (JB) cattle herds (23 months old, 550-600 kg). Herd 1 had pe...

Prednisolone is a synthetic corticosteroid acting on both hydrosaline balance and metabolism that is liable to fraudulent administration to meat-producing animals for growth-promoting purposes. Its use outside strict therapeutic control and prescription is banned by the European legislation, but official controls are hampered by its negligible direct excretion into the urinary matrix. Recent st...

Within grazed pastures, urine patches are hot spots of nitrogen turnover, since dietary N surpluses are excreted mainly as urea in the urine. This short-term experiment investigated 13C uptake in microbial lipids after simulated deposition of cattle urine at 10.0 and 17.1 g of urea C m(-2). Confined field plots without or with cattle urine amendment were sampled after 4 and 14 days, and soil fr...

Abstract Introduction Because of the activities and effects they induce, hormones are prohibited for use anabolic purposes in farm animals intended slaughter, which is regulated European Union by relevant legal provisions. Therefore, there an obligation to monitor residues food animal origin ensure consumer safety. A hormone banned but used formerly fattening cattle, stanozolol, its metabolite ...

Abstract Urine patches from grazing cattle are hotspots of nitrous oxide (N 2 O) emissions. The default IPCC emission factor for urine (EF ) is 0.77% wet climates and 0.32% dry climates. However, literature reports a considerable range EF values characteristics used in experimental studies, revealing contrary results on the effects patch seasonal pattern. Therefore, we examined N O emissions co...

In rodents and humans, the gut bacteria-derived metabolite trimethylamine N-oxide (TMAO) has been implicated in progression of cardiovascular disease, chronic kidney fatty liver, insulin resistance; however, effects TMAO on dairy cattle health milk production have not defined. We aimed to determine whether intravenous infusion modifies measures liver health, glucose tolerance, early-lactation c...

Leptospira interrogans serovar pomona was successfully isolated from cattle urine in the western Transvaal after an abortion storm had occurred. Direct inoculation of EMJH medium proved the most successful method. The selective agent, 5-fluorouracil, was most effective in controlling contamination when used at the 0,4 mg/ml level. The strain isolated was pathogenic in hamsters, but specific les...