Age-related changes in the growth and development of tail vertebrae in rats
УДК: 591.1 DOI: 10.31588/2413_4201_1883_2_255_123
Keywords:
X-ray, vertebrae, rats, growth and development, ageAbstract
In modern specialized literature, there is a large amount of information on age-related changes in the body of fur-bearing animals, small ruminants and pigs. Previously, we studied the growth and development of young rats, but information related to the growth and development of the skeletal system in the age aspect is insufficient. In this regard, the aim was to study age-related changes in the growth and development of the skeletal system on the example of the 4th tail vertebra of rats.
The study was conducted on the basis of the departments of physiology and pathological physiology, as well as therapy and clinical diagnostics with radiology of the Kazan SAVM. The object of this study was rats (n=3) aged 3 months. The subject of the study was radiographs of rat tails. Starting from the age of 3 months with a frequency of once a month, rats underwent X-ray examination. It was found that the intensity of growth of the caudal vertebra changes with age. The tail vertebrae grow most intensively until the age of 4 months, then the growth rate decreases. The ratio of the length of the vertebral body to its width throughout the entire development period of the studied animal changes insignificantly, the coefficient of variation is 4%, which confirms the constancy of this indicator. The length and width of the spongy substance in rats of different ages had a coefficient of variation greater than 10%, but less than 20%, which indicates moderate variability of the observed traits and allows us to assert that the process of resorption of compact and spongy substance has a certain influence on age-related changes.
References
Гирфанова, Ф. Г. Возрастные морфологические особенности блуждающего нерва у некоторых видов пушных зверей / Ф. Г. Гирфанова, А. И. Гирфанов // Ученые записки Казанской государственной академии ветеринарной медицины им. Н.Э. Баумана. -- 2010. -- Т. 201. -- С. 211-215.
Гирфанов, А. И. Особенности роста и развития молодняка крыс при использовании наноструктурного препарата / А. И. Гирфанов, Г. Б. Бозова, В. Е. Катнов, В. О. Ежков // Ученые записки Казанской государственной академии ветеринарной медицины им. Н.Э. Баумана. -- 2021. -- Т. 245, № 1. -- С. 32-36. -- DOI 10.31588/2413-4201-1883-245-1-32-36.
Исаенков, Е. А. Возрастные изменения площади поперечного сечения I и II фаланг пальцев, их костномозговых полостей и компакты в постнатальном онтогенезе романовских овец / Е. А. Исаенков, М. С. Дюмин, Т. Г. Кичеева [и др.] // Аграрный вестник Верхневолжья. -- 2019. -- № 3(28). -- С. 60-64. -- DOI 10.35523/2307-5872-2019-28-3-60-64.
Исаенков, Е. А. Морфометрические изменения костей пальца в онтогенезе романовских овец / Е. А. Исаенков, В. В. Пронин, М. В. Волкова [и др.] // Аграрный вестник Верхневолжья. -- 2018. -- № 1(22). -- С. 37-41.
Кузнецов, К. К. Показатели минерального обмена поросят-сосунов и отъемышей при скармливании свиноматкам добавок соевой окары и природных цеолитов / К. К. Кузнецов, Н. А. Любин, С. В. Дежаткина // Вестник Ульяновской государственной сельскохозяйственной академии. -- 2014. -- № 4(28). -- С. 55-58.
Girfanova, F. G. Age-related morphological features of the vagus nerve in some species of fur-bearing animals / F. G. Girfanova, A. I. Girfanov // Scientific notes of the Kazan State Academy of Veterinary Medicine named after N.E. Bauman. -- 2010. -- Vol. 201. -- P. 211-215.
Girfanov, A. I. Features of growth and development of young rats using a nanostructured drug / A. I. Girfanov, G. B. Bozova, V. E. Katnov, V. O. Ezhkov // Scientific notes of the Kazan State Academy of Veterinary Medicine named after N.E. Bauman. -- 2021. -- Vol. 245, No. 1. -- P. 32-36. -- DOI 10.31588/2413-4201-1883-245-1-32-36.
Isaenkov, E. A. Age-related changes in the cross-sectional area of the I and II phalanges of the fingers, their bone marrow cavities and compact bone in the postnatal ontogenesis of Romanov sheep / E. A. Isaenkov, M. S. Dyumin, T. G. Kicheeva [et al.] // Agrarian Bulletin of the Upper Volga. -- 2019. -- No. 3(28). -- P. 60-64. -- DOI 10.35523/2307-5872-2019-28-3-60-64.
Isaenkov, E. A. Morphometric changes of finger bones in the ontogenesis of Romanov sheep / E. A. Isaenkov, V. V. Pronin, M. V. Volkova [et al.] // Agrarian Bulletin of the Upper Volga. -- 2018. -- No. 1(22). -- P. 37-41.
Kuznetsov, K. K. Indicators of mineral metabolism of suckling piglets and weaners when feeding sows with soy okara additives and natural zeolites / K. K. Kuznetsov, N. A. Lyubin, S. V. Dezhatkina // Bulletin of the Ulyanovsk State Agricultural Academy. -- 2014. -- No. 4(28). -- P. 55-58.
