RESOURCE HETEROGENEITY AND FORAGING BEHAVIOUR OF CATTLE ACROSS SPATIAL SCALES



Analytical procedure for the determination of tetracyclines in medicated feedingstuffs by liquid chromatography-mass spectrometry

Introduction: The article presents a rapid and simple analytical procedure for determination of four tetracyclines (oxytetracycline, tetracycline, chlortetracycline, and doxycycline) in animal medicated feedingstuffs.Material and Methods: Two-gramme samples were Services extracted by a Na2EDTA-McIlvaine buffer (pH 4)/methanol mixtures (40/60, v/v).

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Collaborative optimization of depot location, capacity and rolling stock scheduling considering maintenance requirements

Abstract Generally, when optimizing Mystery Shirt a rolling stock schedule, the locations of the depots, or places in the network where the composition changes and maintenance occurs, are assumed known.The locations where maintenance is performed naturally influence the quality of any resulting rolling stock schedules.In this paper, the problem of

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