Influence of Maximum Inbreeding Avoidance under BLUP EBV Selection on Pinzgau Population Diversity
Keywords:
Inbreeding, mating strategy, Pinzgau breedAbstract
Evaluated was effect of mating (random vs. maximum avoidance of inbreeding) under BLUP EBV selection strategy. Existing population structure was under Monte Carlo stochastic simulation analyzed from the point to minimize increase of inbreeding. Maximum avoidance of inbreeding under BLUP selection resulted into comparable increase of inbreeding then random mating in average of 10 generation development. After 10 generations of simulation of mating strategy was observed ΔF= 6,51 % (2 sires), 5,20 % (3 sires), 3,22 % (4 sires) resp. 2,94 % (5 sires). With increased number of sires selected, decrease of inbreeding was observed. With use of 4, resp. 5 sires increase of inbreeding was comparable to random mating with phenotypic selection. For saving of genetic diversity and prevention of population loss is important to minimize increase of inbreeding in small populations. Classical approach was based on balancing ratio of sires and dams in mating program. Contrariwise in the most of commercial populations small number of sires was used with high mating ratio.
References
Kasarda, R., Kadlečík, O., Predpoveď zlepšenia mäsovej úžitkovosti slovenského pinzgauského plemena. In: Zborník abstraktov z VII. vedeckej konferencie študentov a doktorandov, SPU, Nitra, 2001, pp. 208
Kasarda, R., Kadlečík, O., Genetic gain and inbreeding of MOET breeding program of Pinzgau cattle: Slovak example. In: The 33rd International session of Scientific communications of the Faculty of Animal Science, Bucuresti, 2004, pp. 32-37
Kadlečík, O., Kasarda, R., and Candrák, J., MOET ako alternatíva rozvoja pinzgauského plemena. In: Sborník referátů z mezinárodní vědecké konferene "XX. Genetické dny", MZLU, Brno, 2002, pp. 128-130
Kasarda, R., Bijma, P., Groen, A. F., Kadlečík, O., and Candrák, J., Genetic Improvement of Pinzgau Cattle in Slovakia. Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, France, Montpellier, 2002, Communication No. 01-78
Kasarda, R., Bijma, P., Groen, A. F., Candrák, J., and Kadlečík, O., Future development of Pinzgau cattle in Slovakia. In: Book of Abstracts of the 53 rd Annual Meeting of the European Association for Animal Production, Egypt, 2002, pp. 7
Kasarda, R., Kadlečík, O., Prediction off Expected Genetic Progress of Growth Intensity and Meat Production of Pinzgau Bulls, Acta Fytotechnica et Zootechnica, 2002, 5, 25-29
Kasarda, R., Kadlečík, O., Porovnanie alternatív šľachtiteľského programu pinzgauského plemena na Slovensku, Poľnohospodárstvo, 2005, 51, 1-7
Kasarda, R., Kadlečík, O., Way out for rescue of Pinzgau cattle population. In: Book of Abstracts 1st International Conference and Satellite Workshops „Traditional Agroecosystems“, Nitra, 2005, pp. 17
Kasarda, R., Kadlečík, O., An economic impact of inbreeding in the purebred population of Pinzgau cattle in Slovakia on milk production traits, Czech J. Anim. Sci., 2007, 52, 7-11
FAO, The Management of Global Animal Genetic Resources. Proceedings of an FAO Expert Consultation, Rome, Italy, 1992, pp. 309
Falconer, D.S., Mackay, T.F.C., Introduction to Quantitative Genetics, third ed., Longman, Essex, UK, 2004
Kremer, V. D., Meuwissen, T. H. E., and Woolliams, J. A., 6S (SixS): Stochastic simulation software for sustainable selection schemes. Proc. 7th WCGALP, France, Montpellier, 2002
Kremer, V. D., Meuwissen, T. H. E., and Woolliams, J. A., 6S (SixS)V2.0: Stochastic simulation software for sustainable selection schemes, Proc. 8th WCGALP, Belo Horizonte, 2006
Grundy, B., Villanueva, B., and Woolliams, J. A., Dynamic selection for maximizing response with constrained inbreeding in schemes with overlapping generation, Anim. Sci. 1998, 70, 373-382
Wray, N. R., Goddard, M. E., Increasing long term response to selection. Genet. Sel. Evol., 1994, 26, 43
Meuwissen, T. H. E., Sonneson, A. K., Maximizing the response of selection with a predefined rate of inbreeding: Overlapping generations, J. Anim. Sci, 1998, 76, 2575-2583
Kadlečík, O., Swalwe, H. H., Lederer, J. A., and Grosu, H., Development of dual-purpose pinzgau cattle, Publishing and Editorial Center of Slovak University of Agriculture in Nitra, 2004, pp. 132
Kasarda, R., Kadlečík, O., Ryba, Š., and Bučko, O., Odhad genetických parametrov mäsovej úžitkovosti pinzgauského dobytka na Slovensku, Acta fytotechnica et zootechnica, 2009, 12, 37-40
Mészáros, G., Wolf, J., and Kadlečík, O., Factors affecting the functional length of productive life in Slovak Pinzgau cows, Czech J. Anim. Sci., 2008, 53, 91-97
Kasarda, R., Kadlečík, O., and Mészáros, G., Trends of endangered population of Pinzgau Cattle in Slovakia, Archiva Zootechnica, 2008, 11, 82-87
Huba, J., Daňo, J., Kica, J., et al., Ekonomické váhy ukazovateľov mliekovej úžitkovosti v produkčnom systéme roku 2003, Journal of Farm Animal Science, 2003, 37, 199-125
Krupová, Z., Huba, J., Daňo, J., Krupa, E., and Peškovičová, D., Ukazovatele ekonomickej efektívnosti produkčných systémov dojného dobytka pri rôznej cene mlieka, Acta Fytotechnica et Zootechnica, 2009, 12, 45 – 48
Kasarda, R., Kadlečík, O., Simulácia vplyvu náhodného pripárovania a selekcie podľa odhadnutých BLUP plemenných hodnôt na výšku prírastku inbrídingu v populáciách pinzgauského plemena na Slovenska, Acta Fytotechnica et Zootechnica, 2010, 13, 4 - 9
Caballero, A., Santiago, E., and Toro, M. A., Systems of Mating to Reduce Inbreeding in Selected Populations, Animal Science, 1996, 62, 431-442
Fernández, J., Toro, M. A., and Caballero, A., Fixed contributions vs. minimization of global coancestry to control inbreeding in small populations, Genetics, 2003, 165, 885-894
Windig, J. J., Engelsma, M. Y., An effective rotational mating scheme for inbreeding reduction in captive populations illustrated by the rare sheep breed, Animal, 2008, 2, 1733-1741
Sánchez, L., Bijma, P., and Woolliams, J. A., Minimizing inbreeding by managing genetic contributions across generations, Genetics, 2003, 164, 1589 – 1595
Silvela, L., Diez-Barra, R., Recurrent selection in autogamous species under forced random mating, Euphytica, 1985, 34, 817–8321
Sørensen, A. C., Sørensen, M. K., and Berg, P., Inbreeding in Danish dairy cattle breeds, 2005
Honda, T., Nomura, T., and Mukai, M., Reduction of inbreeding in commercial females by rotation mating with several sire lines, Genet. Sel., 2004, 36, 509-526
Nomura, T., A mating system to reduce Inbreeding in Selection Programmes: Theoretical Basis and Modification of Compensatory Mating, Journal of Animal Breeding and Genetics, 1999, 116, 351-361
Wright, S., Coefficient of inbreeding and relationship, Am. Natur., 1922, 56, 330-338
Kimura, M., Crow, J. F., On the maximum avoidance of inbreeding, Genetical Research, 1963, 4, 399 – 415
