Publication details

EFFECT OF SORGHUM SILAGE IN DIET OF DAIRY COWS ON EIGHTEEN-CARBON FATTY ACIDS IN MILK FAT.

Authors

MALÝ Petr KŘÍŽOVÁ Ludmila DADÁKOVÁ Kateřina KAŠPAROVSKÝ Tomáš

Year of publication 2024
Type Article in Proceedings
Conference NutriNET 2024, Proceedings of reviewed scientific papers
MU Faculty or unit

Faculty of Science

Citation
web https://nutrinet.mendelu.cz/wcd/w-rek-nutrinet/nutrinet-2024/nutrinet-2024.pdf
Doi http://dx.doi.org/10.11118/978-80-7509-994-5-0136
Keywords ?-linolenic acid; linoleic acid; n-3 fatty acids; n-6 fatty acids; saturated fatty acids; unsaturated fatty acids
Description The aim of the study was to evaluate the effect of inclusion of sorghum silage into dairy cow diets on the eighteen-carbon fatty acids (FA) in milk fat. The on-farm experiment was carried out on mid-lactating Czech Fleckvieh cows and was divided into two periods. In the first period cows were fed a total mixed ration (TMR) based on maize silage and grass haylage (Control) while in the second period grass haylage was partially replaced by sorghum silage (Sorghum). The FA profiles were analysed using gas chromatography with flame ionization detection. The total content of C18 acids was on average 34.6% of all FAs in Sorghum and 29.4% in Control. A higher content of stearic, oleic, linoleic and ?-linolenic acid was found in Sorghum compared to Control. The inclusion of sorghum silage into the ration had a positive effect on the content of polyunsaturated FAs and n-3 FAs.
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