Оценка взаимосвязи уровня соматотропина в волосе с мясными качествами бычков герефордской породы
Аннотация
Обоснование. Вопрос о применении волос в качестве индикатора долгосрочных изменений метаболизма соматотропина в организме бычков раскрыт недостаточно. Более того практически полностью отсутствует информация о взаимосвязи уровня соматотропина в волосе с мясными качествами бычков, что и обусловило актуальность настоящего исследования.
Цель. Изучить влияние обменного пула соматотропина, оцененного по его концентрации в волосе на мясные качества бычков герефордской породы.
Материалы и методы. Исследования выполнены на бычках герефордской породы. Животные в зависимости от уровня соматотропина в волосах были разделены на три группы: I – (53,4-57,1 пг/мг); II – (57,3 до 61,8 пг/мг); III – (62,1 до 67,1 пг/мг).
Результаты. Бычки с максимальным уровнем соматотропина имели наивысшие показатели по интенсивности весового роста. Животные этой группы имели более высокую убойную массу и содержание протеина в мясе, на фоне меньшего содержания жира. Увеличение концентрации соматотропина в волосе сопровождалось повышением концентраций лейцин+изолейцина, триптофана, гистидина, метионина, снижением фенилаланина и серина, а также увеличением концентраций полинасыщенных жирных кислот длиннейшей мышце спины. В длиннейшей мышце, бычков с максимальным уровнем соматотропина в волосе, содержалось больше кальция, меди, цинка и йода, при относительно низких концентрациях свинца.
Заключение. Уровень концентрации соматотропина в волосах с холки, тесно связан интенсивностью весового роста, мясной продуктивностью и качеством мяса бычков герефордской породы, что позволяет рассматривать волос в качестве биосубстрата для оценки долгосрочных изменений уровня соматотропина в организме, при разработке мероприятий, направленных на повышение мясной продуктивности бычков.
Информация о спонсорстве. Исследования проведены при финансовой поддержке Российского научного фонда по проекту № 24-16-00093.
EDN: ZTSHVA
Скачивания
Литература
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Aytac, A. K., Bilal, A. K., & Davut, B. (2015). Determination of the alui polymorphism effect of bovine growth hormone gene on carcass traits in Zavot cattle with analysis of covariance. Turk J Vet Anim Sci, 39, 16-22.
Baier, F., Grandin, T., Engle, T., & Edwards-Callaway, L. (2019). Evaluation of Hair Characteristics and Animal Age on the Impact of Hair Cortisol Concentration in Feedlot Steers. Front Vet Sci, 6, 323. https://doi.org/10.3389/fvets.2019.00323
Berryman, D. E., & List, E. O. (2017). Growth Hormone’s effect on adipose tissue: quality versus quantity. Int J Mol Sci, 8, 1621.
Braun, U., Michel, N., Baumgartner, M. R., Hässig, M., & Binz, T. M. (2017). Cortisol concentration of regrown hair and hair from a previously unshorn area in dairy cows. Res Vet Sci, 114, 412-415. https://doi.org/10.1016/j.rvsc.2017.07.005
Bristow, D. J., & Holmes, D. S. (2007). Cortisol levels and anxiety-related behaviors in cattle. Phys Behav, 90, 626-638. https://doi.org/10.1016/j.physbeh.2006.11.015
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Bristow, D. J., & Holmes, D. S. (2007). Cortisol levels and anxiety-related behaviors in cattle. Phys Behav, 90, 626-638. https://doi.org/10.1016/j.physbeh.2006.11.015
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Comin, A., Prandi, A., Peric, T., Corazzin, M., Dovier, S., & Bovolenta, S. (2011). Hair cortisol levels in dairy cows from winter housing to summer highland grazing. Livest Sci, 138, 69-73. https://doi.org/10.1016/j.livsci.2010.12.009
Dehkhoda, F., Lee, C. M. M., Medina, J., & Brooks, A. J. (2018). The growth hormone receptor: mechanism of receptor activation, cell signaling, and physiological aspects. Front Endocrinol (Lausanne), 9, 35. https://doi.org/10.3389/fendo.2018.00035
Devesa, J., Almengló, C., & Devesa, P. (2016). Multiple Effects of Growth Hormone in the Body: Is it Really the Hormone for Growth? Clin Med Insights Endocrinol Diabetes, 9, 47-71. https://doi.org/10.4137/CMED.S38201
Dumbell, R. (2022). An appetite for growth: The role of the hypothalamic-pituitary-growth hormone axis in energy balance. J Neuroendocrinol, 34(6), e13133. https://doi.org/10.1111/jne.13133 EDN: https://elibrary.ru/UVOOVW
Flores, J., García, J. E., Mellado, J., Gaytán, L., de Santiago, Á., & Mellado, M. (2019). Effect of growth hormone on milk yield and reproductive performance of subfertile Holstein cows during extended lactations. Spanish J. Agric. Res, 17(11), e0403. https://doi.org/10.5424/sjar/2019171-13842 EDN: https://elibrary.ru/REWXBZ
Florini, J. R., Ewton, D. Z., & Coolican, S. A. (1996). Growth hormone and the insulin-like growth factor system in myogenesis. Endocr Rev, 17, 481-517. https://doi.org/10.1210/edrv-17-5-481
Furigo, I. C., Teixeira, P. D. S., & de Souza, G. O. (2019). Growth hormone regulates neuroendocrine responses to weight loss via AgRP neurons. Nat Commun, 1, 662. https://doi.org/10.1038/s41467-019-08607-1 EDN: https://elibrary.ru/HMFRHT
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Gómez, C. A., Fernández, M., Franco, N., & Cueva, R. (2022). Effect of two formulations of recombinant bovine somatotropin on milk production and body condition of cattle under intensive management in Peru. Trop Anim Health Prod, 54(2), 96. https://doi.org/10.1007/s11250-021-03036-z EDN: https://elibrary.ru/MZNKYE
Gow, R., et al. (2010). An assessment of cortisol analysis in hair and its clinical applications. Forensic science international, 196(1-3), 32-37. https://doi.org/10.1016/j.forsciint.2009.12.040
Heimbürge, S., Kanitz, E., Tuchscherer, A., & Otten, W. (2020). Within a hair’s breadth — Factors influencing hair cortisol levels in pigs and cattle. Gen Comp Endocrinol, 1(288), 113359. https://doi.org/10.1016/j.ygcen.2019.113359
Holzer, Z., Aharoni, Y., Brosh, A., Orlov, A., Veenhuizen, J., & Kasser, T. R. (1999). The effects of long-term administration of recombinant bovine somatotropin (Posilac) and Synovex on performance, plasma hormone and amino acid concentration, and muscle and subcutaneous fat fatty acid composition in Holstein-Friesian bull calves. Journal of Animal Science, 77(6), 1422-1430. https://doi.org/10.2527/1999.7761422x
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