Professor

Breeding and Genetics, Swine

Research Interests

Swine Genetics and Growth Modeling

A swine lean-growth model has been developed to examine genetic-nutrition interactions and optimize lean production efficiency.

The goals are to genetically increase swine lean growth and model the optimal nutrition and environment to maximize lean efficiency. We specialize in the evaluation of genotypes for lean growth rate, feed intake, and carcass composition. Alternative methods to estimate whole body and carcass composition are evaluated and utilized. Statistical methods to increase the accuracy of compositional growth curves and reduce genotype prediction biases are being evaluated and utilized. Cooperative research with meat scientists and economists is conducted to evaluate differences in carcass value and profitability. Alternative crossbreeding and within-line genetic evaluation systems are being researched with a goal to maximize genetic progress.

Research Techniques

• Swine growth modeling
• Genetic parameter estimation
• Methods to predict swine component growth curves
• Cooperative research in swine lean systems analysis
• Evaluation of alternative selection programs

Selected Refereed Journal Publications

Gu, Y., A. P. Schinckel, and T. G. Martin. 1992. Growth, development, and carcass composition in five genotypes of swine. Journal of Animal Science 70:1719-1729.

Gu, Y., A. P. Schinckel, T. G. Martin, J. C. Forrest, C. H. Kuei, and L. C. Watkins. 1992. Genotype and treatment biases in estimation of carcass lean of swine. Journal of Animal Science 70:1708-1718.

Boland, M. A., P. V. Preckel, and A. P. Schinckel. 1993. Optimal hog slaughter weights under alternative pricing systems. Journal of Agricultural Applied Economics. 25:148-163.

Schinckel, A.P., A.L. Grant, L.K. Clark, D.L. Hancock, J. Nielsen, and J.J. Turek. 1995. Effects of antigenic challenge on pig growth and composition. Swine Health and Production (Vol. 3(6):227-233).

Friesen, K.G., J.C. Nelssen, R.D. Goodband, M.D. Tokach, A.P. Schinckel, and M.E. Einstein. 1996. The use of growth curves for assessing the response to dietary lysine by high-lean gain gilts. Anim. Sci. 62:156-169.

Boland, M.A., K.A. Foster, P.V. Preckel, and A.P. Schinckel. 1996. Using pork carcass evaluation technologies in a swine bioeconomic model. J. Prod. Agric. (Vol. 9(1):45-49).

Schinckel, A.P., P.V. Preckel, and M.E. Einstein. 1996. Prediction of daily protein accretion rates of pigs from estimates of fat-free lean gain between 20 and 120 kilograms live weight. J. Anim. Sci. 74:498-503.

Schinckel, A.P., and C.F.M. DeLange. 1996. Characterization of growth parameters needed as inputs for pig growth models. J. Anim. Sci. 74:2021-2036.

Thompson, J.M., F. Sun, T. Kuczek, A.P. Schinckel, and T.S. Stewart. 1996. The effect of genotype and sex on the patterns of protein accretion in pigs. Anim. Sci. 63:265-276.

Hicks, C., A.P. Schinckel, J.C. Forrest, J.R. Wagner, and W. Chen. 1998. Biases associated with genotype and sex in prediction of fat-free lean mass and carcass in pigs. J. Anim. Sci. 76-2221-2234.

Holck, J.T., A.P. Schinckel, J.L. Coleman, V.M. Wilt, G. Christenson, E.L. Thacker, M. Spurlock, A.L. Grant, M.K. Senn, and B.J. Thacker. 1998. The influence of environment on the growth of commercial finisher pigs. Swine Health and Prod. 6(4):141-149.

Wagner, J.T., A.P. Schinckel, W. Chen, J.C. Forrest, and B.J. Coe. 1999. Analysis of body composition changes of swine during growth and development. J. Anim. Sci. 77:1442-1466.

Smith, J.W., M.D. Tokach, A.P. Schinckel, S.S. Dritz, M. Einstein, J.L. Nelssen, and R.D. Goodband. 1999. Developing farm-specific lysine requirements using accretion curves: Data collection procedures and techniques. Swine Health Prod. 7(6):277-282.

Ding, S.T., A.P. Schinckel, T.E. Weber, and H.J. Mersmann. 2000. Expression of porcine transcription factors and genes related to fatty acid metabolism in different tissues and genetic populations. J. Anim. Sci. 78:2127-2134.

Selected Research Publications

Schinckel, A.P., B.T. Richert, L.K. Clark, J.W. Frank, and J.T. Turek. 1997. Modeling genetic and environment effects on pig lean growth. Proc. National Swine Improvement Federation. Pgs. 55-74.

Hicks, C., and A.P. Schinckel. Effect of Genotype and Sex on Carcass Value Prediction in Pigs in the United States. Proc. 6^th World Congress on Genetics Applied to Livestock Production. Armidale NSW, Australia. Vol. 25:391-394. January 11-16, 1998.

Selected Book Chapters

Schinckel, A.P. 1994. Nutrient Requirements of Modern Pig Genotypes. In: Recent Advances in Animal Nutrition. Univ. of Nottingham Press. Loughborough, U.K. Edited by P.C. Garnsworthy and D. J. A. Cole. pp. 133-169. (Currently to be reprinted in Recent Developments of Pig Nutrition 3, 2001.)

Schinckel, A.P. 1999. Describing the Pig. A Quantitative Biology of the Pig. CAB International. pp 9-38.