In the practice of producing concentrated compound feeds, use meat and bone meal is widespread. 1 kg this feed component contains 50 g protein. most economically developed countries, waste in technological chain processing agricultural products for preparation feeds contributes both to meeting needs intensive animal husbandry rational all reserve resources. It determined, that variation composi...

A sensitive, rapid and reproducible method has been developed based on high performance liquid chromatography with evaporative light scattering detection (HPLC-ELSD) for the simultaneous detection of ten aminoglycoside antibiotics including apramycin, neomycin, amikacin, and gentamicin. The influence of parameters of ELSD on the responses of aminoglycosides was investigated in detail. The targe...

Page Introduction . 1 Quality of proteins as a factor in nutrition 2 Quantity of proteins in foods and feeds 8 Estimation of protein in foods and feeds , 8 Nonprotein nitrogen in foods 4 Nitrogen content of different proteins ._. 5 Errors arising from tlie use of wrong conversion factors 7 Chemical composition of plant proteins in relation to the plant environment 7 Page Proteins of cereal grai...

The ‘big three’ forages in California, alfalfa hay, corn silage and small grain silage, are quantitatively the most important feed group on California dairy farms, as they comprise about 45% of all feeds consumed by California dairy animals. Thus, accurate estimation of their energy content is central to feed formulation that allows maximum animal performance and minimum environmental impact. W...

A rapid, selective, and sensitive method to determine the melamine content in animal feeds was developed using surface-enhanced Raman scattering spectroscopy on aggregated 55 nm Au nanoparticles with liquid-liquid extraction sample preparation. Butyl alcohol was used as the initial extraction solvent, and liquid-liquid extraction was performed twice using HCl (pH 3-4) and 6:1 (v/v) n-butyl alco...