INFLUENCE OF INBREEDING ON BOARS TESTICULAR DEVELOPMENT AND HISTOSTRUCTURE
Keywords:
boar, inbreeding, reproduction, testicular histostructureAbstract
The aim of the study was to investigate some reproductive features – weight of testicles. diameter of seminiferous tubules and histostructure of the testes in relation with inbred level in boars. The level of inbreeding in experimental groups was Fx=0. Fx=0.25 and Fx=0. 375. The results showed that applied level of inbreeding Fx=0.25 and Fx=0. 375 lead to significant morphometric disturbances in testes as well as decreased population of germ cells in some of the tubules. We found differences in studied features between groups with different levels of inbreeding and increasing of inbred depression depending on inbreeding level.
References
Бойковски. С.,2003. Инбридингът при овцете, Шумен.
Венев, И., А. Стойков. 2002. Генетични и селекционни аспекти на размножителния процес при говеда. овце и свине. Сагитариус, Добрич.
Глембоцкий, Я., 1977. Проблема инбридинга в условиях интенсификации животноводства. В: Использование инбридинга в животноводстве. Наука. Москва.
Георгиева, С., Танчев С., Пенчев Г., Облакова М., 2008. Влияние на инбридинга върху репродуктивните признаци на мъжки зайци. Union of scientists-Stara Zagora. International Scientific Conference. June 5-6. 2008.
Танчев, С., 2006. Експериментални проучвания върху някои фенотипни и генетични ефекти на инбридинг при многоплодни бозайници (Orictologus caniculus: Sus scpufa scrofa domestica). дисертация.
Харитонов, С., 1983. Планирование ротаций быков линий и контроль инбридинга в условиях крупномасштабной селекции при помощи ЭВМ. Автореферат. Тарту.
Anderson, D. C., Kress D. D., Boss D. L. and K. C. Davis. 2000. Effect of inbreeding and age of dam on hereford scrotal circumference growth rate . Proceedings. Western Section. American Society of Animal Science Vol. 51.
Burrow, H. M. 1998. The effects of inbreeding on productive and adaptive traits and temperament of tropical beef cattle. Livestock Production Science 55. 227-243.
Christensen, K.. P. Jensen. and J. N. Jorgensen, 1994. A note on effect of inbreeding on production traits in pigs. Animal Production 58. 298-300
Fioretti, M., Rossti A., Pieramati. C., and D. Van Vleck Lloyd, 2002. Effect of inbreeding coefficients for animal and dam on estimates of genetic parameters and prediction of breeding values for reproductive and growth traits of Piedmontese cattle. Livestock Production Science 74. 137-145
Gama, L. T. and C. Smith, 1993. The role of inbreeding depression in livestock production systems. Livestock Production Science 36. 203-211.
Maximini, L. B Fuerst –Waltl, B. Gredler, R. Baumung, 2011. Inbreeding Depression on Semen Quality in Austrian Dual-Purpose Simmental Bulls. Reproduction in Domestic Animals. Volume 46. Issue 1. pages 102–104. February.
McPhee, H., O. Eaton, N. Russell and John Zeller, 1931. An Inbreeding Experiment with Poland China Swine. Journal of Heredity (22). 393-403.
Nomura, T., T. Honda and F. Mukai, 2001. Inbreeding and effective population size of Japanese Black Cattle. Journal of Animal Science 79. 366-370.
Downloads
Published
Issue
Section
Categories
License
Copyright (c) 2012 Bulgarian Journal of Animal Husbandry
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
