The use of developed chromatographic techniques
to determine vitamin E and conjugated linoleic acid
isomers in milk of cows

The effect of vitamin E in feed enriched in rape seed oil or sunflower oil on the concentration of vitamin E in the cow milk was studied by chromatographic assay. The experiment was conducted on forty Holstein-Friesian cows. Addition of sunflower oil to the feed resulted in lowering the concentration in the milk compared with the concentration of vitamin E in the milk of cows fed the ration with rape seed oil. Described GLC procedure provided the new accurate analytical tool for quantification of CLA isomers and other fatty acids in milk and blood plasma of cows.

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Effects of full fat oil seeds on milking performance, milk composition and milk quality in lactating Holstein cows

The role of sheep’s milk bioactive substances in the prevention of metabolic and viral diseases

Effect of selected factors (body weight, age, parity, litter size and temperament) on the entrance order into the milking parlour of Lacaune ewes, and its relationship with milk production

Effects of rumen-protected conjugated linoleic acid (CLA) on performance of primiparous and multiparous cows in the transition period

5’-flanking variants of the equine α-lactalbumin (LALBA) gene – relationship with gene expression and mare’s milk composition

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Assigning DOI numbers, introducing articles from supplements and recent publications to POL-index database, maintaining anti-plagiarism detection, electronic system to proceed manuscripts and webpage of the Journal with interactive pdf files, and language correction of manuscripts published in Journal of Animal and Feed Sciences are financed in the years 2018–2019 by the Ministry of Science and Higher Education from the funds for science popularization activities, Agreement No. 631/P-DUN/2018.

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