The first results of the use of dietary carotenoids at growing of juveniles Lacerta media Lantz et Cyrén, 1920 (Lacertidae, Squamata)
Vladimir Olegovich Erashkin,
Ksenia Igorevna Andreeva,
Daria Vladimirovna Guridova,
Artem Aleksandrovich Kidov Abstract
Carotenoids are essential substances for the animal body, as they have a positive effect on overall health and are involved in regulating color. In this regard, it becomes relevant to develop methods for the use of synthetic and natural carotenoids in the feeding of various taxonomic groups. The paper presents the results of studying the effect of carotenoids in the rearing of juvenile Lacerta media. Animals (n=24) were divided equally into two groups (control and experimental), each group was reared three times. Before starting the experiment, each individual was labeled, measured and weighed, and photographed from the dorsal side of the body. Lizards from the experimental group received carotenoids from food every third feeding by sprinkling them on food insects. As a result of the study, it was shown that the consumption of carotenoids in food did not affect the growth of juveniles of the average lizard throughout all periods of the experiment. However, when comparing the color of individuals using the RGB model, statistically significant differences were revealed at the last stage of the experiment in the blue parameter: the control group was superior in this parameter to the experimental group. The authors believe that these differences in color are due to the depletion of the upper pigment layer of xanthophores in individuals from the control group due to a lack of carotenoids in food, which is why blue-green colors predominate in the color due to the action of the underlying layer of iridophores.
Supporting agencies: The research was financially supported by the Program of Development of the Russian State Agrarian University – Moscow Timiryazev Agricultural Academy within the Program of Strategic Academic Leadership «Priority-2030».
About the Authors
Vladimir Olegovich Erashkin
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
Russian Federation
Russian Federation
Ksenia Igorevna Andreeva
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
Russian Federation
Russian Federation
Daria Vladimirovna Guridova
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
Russian Federation
Russian Federation
Artem Aleksandrovich Kidov
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
Russian Federation
Russian Federation
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For citations:
Erashkin V.O., Andreeva K.I., Guridova D.V., Kidov A.A. The first results of the use of dietary carotenoids at growing of juveniles Lacerta media Lantz et Cyrén, 1920 (Lacertidae, Squamata). Timiryazev Biological Journal. (In Russ.)
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