Effects of maternal treatment with β‐hydroxy‐β‐metylbutyrate and 2‐oxoglutaric acid on femur development in offspring of minks of the standard dark brown type |
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| Authors: | E Tomaszewska P Dobrowolski I ?wietlicka S Muszyński K Kostro A Jakubczak I Taszkun A ?muda K Rycerz T Blicharski J Jaworska‐Adamu |
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| Institution: | 1. Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland;2. Department of Comparative Anatomy and Anthropology, Maria Curie‐Sk?odowska University, Lublin, Poland;3. Department of Physics, Faculty of Production Engineering, University of Life Sciences in Lublin, Lublin, Poland;4. Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences, Lublin, Poland;5. Department of Biological Basis of Animal Production, Faculty of Biology and Animal Breeding, University of Life Sciences in Lublin, Lublin, Poland;6. Sub‐department of Clinical Diagnostics and Veterinary Dermatology, Department and Clinic of Internal Medicine, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland;7. Department of Animal Anatomy and Histology, University of Life Sciences in Lublin, Lublin, Poland;8. Chair and Department of Rehabilitation and Orthopaedics, Medical University in Lublin, Lublin, Poland |
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| Abstract: | The aim of the study was to evaluate the effect of the diet, mother type and sex of the offspring on the mechanical and geometric parameters of long bones as well as bone tissue density in minks. Primiparous and multiparous dams were supplemented with β‐hydroxy β‐methylbutyrate (a metabolite of leucine, at the daily dosage of 0.02 g/kg of body weight) and/or 2‐oxoglutaric acid (a precursor of glutamine, at the daily dosage of 0.4 g/kg of body weight) during gestation. The diet did not influence bone tissue density and the length of the humerus. An increase in the length of the femur was noted in male offspring delivered by multiparous dams. The diet resulted in an increase in the weight of the humerus in males from multiparous dams and a decrease in offspring from primiparous dams. Heavier femora were noted in male offspring delivered by both types of dams. The maximum elastic strength of the humerus was higher in the offspring delivered by multiparous than primiparous dams, irrespective of the offspring sex. The diet resulted in reduction in the ultimate strength of the femur in the male offspring delivered by primiparous dams. Only females born by multiparous dams, irrespective of the diet, showed a significant increase in the cross‐sectional area of the humerus, while a significant decline was noted in males delivered by multiparous dams and in all the offspring delivered by primiparous dams. An increase in the cross‐sectional area of the femur was noted in the offspring delivered by multiparous dams, while reduction was observed in the offspring delivered by primiparous dams. These results have shown for the first time that the presence of β‐hydroxy‐β‐methylbutyrate or 2‐oxoglutaric acid in the diet of pregnant primiparous or multiparous dams unambiguously affects the geometry and mechanical properties of offspring's long bones. |
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| Keywords: | β ‐hydroxy β ‐methylbutyrate 2‐oxoglutaric acid bone mink |
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