Research - Quantitative Genetics, Biometrics

Selection theory and quantitative genetics
Estimation of genetic parameters from selection experiments; selection in small or in closed populations; group selection; selection for direct and other genetics effects (e.g., maternal, associative). These topics are being approached through theoretical work in statistical methods and experimental work with Tribolium castaneum.

Applied statistics
Methods for establishing the "best" size for experimental and observation units.

Teaching

• ANSC 327: Molecular and Quantitative Animal Genetics
• ANSC 450: Animal Breeding Plans
• ANSC 688Z: Special Topics - Quantitative Genetics
• BIOM 601: Biostatistics I

Awards and Honors

• 1999 Sigma Xi, Scientific Research Society, NCSU Chapter
• 1997 International Young Scientist Travel Award, 1997, Organizing Committee of the 6th World Congress on Genetics - Applied to Livestock Production, Armidale, Australia
• 1997 Gamma Sigma Delta, Honor Society of Agriculture, NCSU Chapter
• 1992 Outstanding Undergraduate Teaching Award, College of Agronomy, Universidade Federal de Pelotas, Brazil
• 1991 Master of Science Thesis Approved with Honors, Universidade Federal de Pelotas, Brazil

Publications

Representative Publications

• SIEWERDT, F., 2005. [Biosecurity in broiler production]. In: Aves e Ovos [Poultry and Eggs], eds.: L.A. Souza-Soares and F. Siewerdt, Editora Universitária, Pelotas, p.23-34. (Language: Portuguese)
• ROCHA, J.L., E.J.EISEN, F.SIEWERDT, L.D.VAN VLECK, D.POMP, 2004. A large-sample QTL study in mice: III. Reproduction. Mammalian Genome 15:878-886.
• ROCHA, J.L., F.SIEWERDT, E.J.EISEN, L.D.VAN VLECK, D.POMP, 2002. Lessons regarding the genetic nature of continuous variation. In: Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, 21:27-30.
• SIEWERDT, F., E.J.EISEN, J.D.MURRAY, I.J.PARKER, 2000. Response to 13 generations of selection for increased 8-week body weight in lines of mice carrying a sheep growth hormone-based fusion transgene. Journal of Animal Science 78:832-845.
• SIEWERDT, F., E.J.EISEN, J.D.MURRAY, 2000. Correlated changes in fertility and fitness traits in lines of transgenic mice selected for increased 8-week body weight. Journal of Animal Breeding and Genetics 117:83-95.
• SIEWERDT, F., E.J.EISEN, J.D.MURRAY, 1999. Direct and correlated responses to short-term selection for 8-week body weight in lines of transgenic (oMt1a-oGH) mice. In: Transgenic Animals in Agriculture, eds.: J.D. Murray, G.B. Anderson, M.M. McGloughlin, and A.M. Oberbauer, CAB International, Oxon, p.231-250.
• SIEWERDT, F., E.J.EISEN, J.D.MURRAY, 1998. Direct response to short-term selection for 8-week body weight in lines of transgenic (oMt1a-oGH) mice. In: Proceedings of the 6th World Congress on Genetics Applied to Livestock Production, Armidale, Australia, 26:105-108.
• SIEWERDT, F., E.J.EISEN, J.S.CONRAD-BRINK, J.D.MURRAY, 1998. Gene action of the oMt1a-oGH transgene in two lines of mice with distinct selection backgrounds. Journal of Animal Breeding and Genetics 115:211-226.
• SIEWERDT, F., R.A.CARDELLINO, 1996. [Genetic parameters of piglet mortality from birth to 21 days of age, in the Landrace breed]. Revista da Sociedade Brasileira de Zootecnia 25:902-909. (Language: Portuguese)
• SIEWERDT, F., R.A.CARDELLINO, 1995. The efficiency of using more than one record as the selection criteria for litter traits in pigs. Brazilian Journal of Genetics 18:397-403.
• CARDELLINO, R.A., R.C.CARDELLINO, F.SIEWERDT, 1995. [Genetic parameters of wool production traits in Ideal (Polwarth) sheep in Uruguay]. Producción Ovina 8:7-16. (Language: Spanish)
• SIEWERDT, F., R.A.CARDELLINO, V.C.ROSA, 1995. Genetic parameters of litter traits in three breeds of pigs, in southern Brazil. Brazilian Journal of Genetics 18:199-205.
• SIEWERDT, F., J.V.S.FARIAS, J.C.S.OSóRIO, I.F.R.JACONDINO, 1994. Allometric growth of primal cuts and tissues in the pig. Ciência Rural 24:623-627.
• SIEWERDT, F., R.A.CARDELLINO, 1993. [Culling of sows based on their progenies performance]. Revista da Sociedade Brasileira de Zootecnia 22:946-951. (Language: Portuguese)
• SIEWERDT, F., 1993. [Simultaneous estimation of the heritability and the repeatability of a trait.] Arquivos de Biologia e Tecnologia 36:675-683. (Language: Portuguese)
• CARDELLINO, R.A., F.SIEWERDT, 1992. [Use and misuse of statistical tests for multiple comparison of treatment means] Revista da Sociedade Brasileira de Zootecnia 21:985-995. (Language: Portuguese)
• CARDELLINO, R.A., F.SIEWERDT, 1992. Genetic parameters of production traits in Landrace and Large White pigs in southern Brazil. Brazilian Journal of Genetics 12:575-583.
• SIEWERDT, F., J.L.RECH, 1991. [Biological relationships among traits in litters produced by Landrace and Large White pigs]. Revista da Sociedade Brasileira de Zootecnia 20:144-152. (Language: Portuguese)

Grants