Changes in the Spectrum of Free Fatty Acids in Blood Serum of Dairy Cows during a Prolonged Summer Heat Wave
Roman Mylostyvyi,
Veerasamy Sejian,
Olena Izhboldina,
Olena Kalinichenko,
Lina Karlova,
Olena Lesnovskay,
Natalia Begma,
Oleh Marenkov,
Vadym Lykhach,
Svitlana Midyk,
Nikolay Cherniy,
Bogdan Gutyj,
Gundula Hoffmann
Affiliations
Roman Mylostyvyi
Department of Animal Products Processing Technology, Dnipro State Agrarian and Economic University, S. Efremov Str. 25, 49600 Dnipro, Ukraine
Veerasamy Sejian
National Institute of Animal Nutrition and Physiology, Indian Council of Agricultural Research, Adugodi, Bangalore 560030, India
Olena Izhboldina
Department of Livestock Production Technology, Dnipro State Agrarian and Economic University, S. Efremov Str. 25, 49600 Dnipro, Ukraine
Olena Kalinichenko
Department of Animal Products Processing Technology, Dnipro State Agrarian and Economic University, S. Efremov Str. 25, 49600 Dnipro, Ukraine
Lina Karlova
Department of Animal Feeding and Breeding Technology, Dnipro State Agrarian and Economic University, S. Efremov Str. 25, 49600 Dnipro, Ukraine
Olena Lesnovskay
Department of Livestock Production Technology, Dnipro State Agrarian and Economic University, S. Efremov Str. 25, 49600 Dnipro, Ukraine
Natalia Begma
Department of Animal Feeding and Breeding Technology, Dnipro State Agrarian and Economic University, S. Efremov Str. 25, 49600 Dnipro, Ukraine
Oleh Marenkov
Department of General Biology and Water Bioresources, Oles Honchar Dnipro National University, Gagarin av., 72, 49010 Dnipro, Ukraine
Vadym Lykhach
Department of Technologies in Poultry, Pig and Sheep Breeding, Faculty of Livestock Raising and Water Bioresources, National University of Life and Environmental Sciences of Ukraine, Heroiv Oborony St. 12-b, Building 7-a, of. 215, 03041 Kyiv, Ukraine
Svitlana Midyk
Ukrainian Laboratory of Quality and Safety of Agricultural Products, National University of Life and Environmental Sciences of Ukraine, Heroiv Oborony Street, 15, 03041 Kyiv, Ukraine
Nikolay Cherniy
Department of Animal Hygiene and Veterinary Sanitation, State Biotechnological University, Alchevskykh Street, 44, 61002 Kharkiv, Ukraine
Bogdan Gutyj
Department of Hygiene, Sanitation and General Veterinary Prevention, Faculty of public development and health, Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnologies Lviv, Pekarska Str., 50, 79010 Lviv, Ukraine
Gundula Hoffmann
Department of Engineering for Livestock Management, Leibniz Institute for Agricultural Engineering and Bioeconomy, Max-Eyth-Allee 100, 14469 Potsdam, Germany
This experiment was conducted to study the effect of a prolonged hot period on the fatty acid (FA) composition in blood serum of dairy cows. Eighteen multiparous Holstein cows were randomly assigned to the hyperthermia group (HYP, n = 8) in August (summer season) and the control group (CON, n = 10) in October (autumn season). Blood from animals of the HYP group was collected in one heat wave, which was preceded by a long period of heat stress (HS, temperature-humidity index (THI ≥ 72)). Blood from cows of the CON group was collected under thermal comfort conditions (THI < 68). The spectrum of free fatty acids (FFA) in the blood serum was analyzed by gas chromatography. The concentration of FFA increased, including saturated FAs and monounsaturated FAs, in the blood serum of cows under conditions of prolonged HS. This was associated with the mobilization of FA into the bloodstream from adipose tissue, as a consequence of negative energy balance. An increase in the ratio of n-6/n-3 polyunsaturated FAs may indicate biomembrane dysfunction and adversely affect dairy cows. This study showed that prolonged periods of heat can affect the FA composition of blood. How much this leads to changes in the FA composition of milk and the quality of food products remains to be seen in further research.
