NCERA57: Swine Reproductive Physiology

(Multistate Research Coordinating Committee and Information Exchange Group)

Status: Active

SAES-422 Reports

07/20/2020

Publications

Basic Science and Technology

  1. Gruhot, T.R., Rempel, L.A., White, B.R., Mote, B.E. 2020. The effect of varicocele on semen quality in boars exposed to heat stress. Translational Animal Science. 4(1):1-6. https://doi.org/10.1093/tas/txaa003.
  2. Kerns K, Sharif M, Zigo M, Miller D, Sutovsky S. 2020. Sperm capacitation-induced zinc efflux is necessary for increased proteasomal activity and release from oviduct glycans of the sperm reservoir. Int J Mol Sci 21:2121.
  3. Rubessa, M., Feugang, J.M., Kandel, M.E., Schreiber, S., Hessee, J., Salerno, F., Meyers, S., Chu, I., Popescu, G., Wheeler, M.B. 2020. High-throughput sperm assay using label-free microscopy: morphometric comparison between different sperm structures of boar and stallion spermatozoa. Animal Reproduction Science. 106509. https://doi.org/10.1016/j.anireprosci.
  4. Sharif M, Kerns K, Sutovsky P, Bovin N, Miller. DJ Progesterone induces porcine sperm release from oviduct glycans in a proteasome-dependent manner. Submitted.
  5. Walsh, S.C., Miles, J.R., Yao, L., Broeckling, C.D., Rempel, L.A., Wright-Johnson, E.C., Pannier, A.K. 2020. Metabolic compounds within the porcine uterine environment are unique to the type of conceptus present during the early stages of blastocyst elongation. Journal of Molecular Reproduction and Development. 87:174-190. https://doi.org/10.1002/mrd.23306.
  6. Boettcher AN, Kiupel M, Adur MK, Cocco E, Santin AD, Bellone S, Charley SE, Blanco-Fernandez B, Risinger JI, Ross JW, Tuggle CK, Shapiro EM. Human Ovarian Cancer Tumor Formation in Severe Combined Immunodeficient (SCID) Pigs. Front Oncol. 2019 Jan 22;9:9. doi: 10.3389/fonc.2019.00009. eCollection 2019. PMID: 30723704.
  7. Schultz, R., Serao, N.L., Ross, J.W. 2019. Genetic improvement of livestock, from conventional breeding to biotechnological approaches. In: Animal Agriculture:Sustainability, Challenges and Innovations. Eds. Bazer, F.W., Wu, G. In Press (Elsevier).
  8. Mayorga E.J., Renaudeau, D., Ramirez, B.C., Ross, J.W., Baumgard, L.H. 2019. Heat stress adaptation in pigs. Animal Frontiers 9:54-61.

Boar Performance

  1. Feugang JM, Rhoads CE, Mustapha PO, Tardif S, Parrish JJ, Willard ST, Ryan PL. 2019. Treatment of boar sperm with nanoparticles for improved fertility. Theriogenology 137:75-81.
  2. Hufana-Duran D, Duran PG, Venturina E, Peralta MD, Parrish JJ. 2019. Predicting bull fertility by sperm nuclear shape in water buffalo (bubalus bubalis). Thai J. Vet Med 49:75-81.
  3. Lugar, D.W., Harlow, K.E., J. Hundley, M. Goncalves, J. Bergstrom, and K.R. Stewart. 2019. Effects of increased levels of supplemental vitamins during the summer in a commercial AI boar stud. Animal 1-13. doi:10.1017/S1751731119001150

Genetics and Genomics

  1. Wijesena, H.R., Rohrer, G.A., Nonneman, D.J., Keel, B.N., Petersen, J.L., Kachman, S.D., Ciobanu, D.C. 2019. Evaluation of genotype quality parameters for SowPro90, a novel genotyping platform for swine. Journal of Animal Science. 97(8):3262-3273. https://doi.org/10.1093/jas/skz185.
  2. Lents, C.A., Lindo, A.N., Hileman, S.M., Nonneman, D.J. 2020. Physiological and genomic insight into neuroendocrine regulation of puberty in gilts. Domest Anim Endocrinol. 11:106446. doi: 10.1016/j.domaniend.2020.106446.

Sow and Gilt Performance

  1. Harlow, K., Ferreira, C.R., Sobreira, T.J.P., Casey, T. and K.R. Stewart.   Lipidome profiles of postnatal day 2 vaginal swabs reflect fat composition of gilt’s postnatal diet. PLoS ONE 14(9): e0215186. https://doi.org/10.1371/journal.pone.0215186
  2. Harlow, K., Suarez-Trujillo, A., Hedrick, V., Sobreira, T.J.P., Aryal, U.K., Stewart, K.R. and T. Casey. Temporal analysis of vaginal proteome reveals developmental changes in lower reproductive tract of gilts across the first two weeks of postnatal.  Sci Rep. 2019 Sep 13;9(1):13241. doi: 10.1038/s41598-019-49597-w. 
  3. Leonard, S.M., Xin, H., Brown-Brandl, T.M., Ramirez, B.C., Dutta, S., Rohrer, G.A. 2020. Effects of farrowing stall layout and number of heat lamps on sow and piglet production performance. Animals. 10:348. https://doi.org/doi:10.3390/ani10020348.
  4. Seibert, J.T., Adur, M.K., Schultz, R.B., Thomas, P.Q., Kiefer, Z.K., Keating, A.F., Baumgard, L.H., Ross, J.W. 2019. Differentiating between the effects of heat stress and lipopolysaccharide on the porcine ovarian heat shock protein response. J Anim Sci. 97:4965-4973. doi: 10.1093/jas/skz343. PMID: 31782954.
  5. Bidne KL, Romoser MR, Ross JW, Baumgard LH, Keating AF. 2019. Heat stress during the luteal phase decreases luteal size but does not affect circulating progesterone in gilts1. J Anim Sci. 97:4314-4322. doi: 1093/jas/skz251.
  6. Hines EA, Romoser MR, Kiefer ZE, Keating AF, Baumgard LH, Niemi J, Gabler NK, Patience JF, Haberl B, Williams NH, Kerr BJ, Touchette KJ, Ross JW. 2019. The impact of dietary supplementation of arginine during gestation in a commercial swine herd: I. Gilt reproductive performance. J Anim Sci. 97:3617-3625. doi: 10.1093/jas/skz233.

Teaching and Extension

  1. Boyd, R., Zier-Rush, C., Moeser, A., Culbertson, M., Stewart, K., Rosero, D., & Patience, J. 2019. Review: Innovation through research in the North American pork industry. Animal, 13(12), 2951-2966. doi:10.1017/S1751731119001915

 

Abstracts/Posters/Professional Presentations

  1. Adur, M.K., Romoser, M.R., Bidne, K.L., Schultz, R.B., Keating, A.F., Baumgard, L.H., Ross, J.W. 2019 Proteomic assessment of the intra-uterine secretome during the peri- implantation phase to understand effects of increased ambient temperature on the porcine heat stress 52nd Annual Meeting Society for the Study of Reproduction, San Jose, CA. July 18-21.
  2. Corredor, F.A., Sanglard, L.P., Ross, J.W., Keating, A.F., Serao, N.L. 2019. Phenotypic and genomic relationships between vulva score and reproductive performance in first- parity sows. American Society of Animal Science Midwest Section Meeting. Omaha, March 11-13.
  3. Desaulniers, A., Cederberg, R., Knox, R., Lents, C.A., White, B. 2019. Use of genetic engineering to elucidate reproductive physiology of the boar. In: Missouri Physiological Society 2019 Annual Meeting Abstracts, 26Oct2019, Columbia, MO. pp. 6.
  4. Doungkamchan K, Parrish JJ, Miller DJ. 2020. Proteomic identification of molecular pathways and biomarkers related to porcine seasonal heat-induced infertility in males. 53rd Annual Meeting of the Society for the Study of Reproduction.
  5. Ebrecht, M.A., Ross, C.E., Cederberg, R.A., Lovercamp, K.W., Desaulniers, A.T., White, B.R. 2019. Effects of GnRH-II on spermatogenic function of swine. Proceedings of the 16th Annual Gilbert S. Greenwald Symposium on Reproduction and Perinatal Research. p. 44.
  6. Kerns K, Sharif M, Zigo M, Miller DJ, Sutovsky P. 2019. Sperm capacitation-induced zinc efflux is necessary for increased proteasomal activity and release from oviduct glycans of the sperm reservoir. 52th Annual Meeting of the Society for the Study of Reproduction.
  7. Kiefer, Z.E., Chipman, A.L., Studer, J., Johnson, C., Rademacher, C.J., Linhares, D.C.L., Ross, J.W. 2019. Update on Prolapses and Pig Survivability Initiative. James D. McKean Swine Disease Conference. Ames, Iowa. November 7-8.
  8. Kiefer, Z.E., Chipman, A.L., Studer, J.M., Koester, L.R., Showman, L., Keating, A.F., Schmitz-Esser, , Ross, J.W. 2019. Identification of putative factors associated with pelvic organ prolapse in sows during late gestation. 52nd Annual Meeting Society for the Study of Reproduction, San Jose, CA. July 18-21.
  9. Knox RV, Belstra BA, Willenburg KL, D Gómez-López DH, and Stewart KR.   Effects of number of sperm and site of uterine semen deposition on conception rate and number of embryos in weaned sows receiving a single fixed time insemination. IXth International Conference on Boar Semen Preservation. Sydney, Australia
  10. Mills, K., U.K. Aryal, T. Sobreira, A.M. Minton, T. Casey, K.R. Stewart. 2020. Shotgun proteomics reveal seminal plasma proteomes are reflective of boar reproductive performance. 2020 Midwest ASAS.
  11. Park, S.B., Gruhot, T.R., Liao, S.F., Rude, B.J., Mote, B.E., Feugang, J.M. 2019. Favorable seminal plasma environment to sperm fertility after L-arginine addition to boar diet. 42nd International Conference of Boar Semen Preservation (ICBSP), Hunter Valley, NSW, Australia.
  12. Rohrer, G.A., Cross, A.J., Keel, B.N., Brown-Brandl, T.M., Cassady, J.P. 2019. Genetic factors associated with changes in feeding behavior due to elevated temperature. In: Proceedings of the Plant and Animal Genome Conference, San Diego, CA, Jan. 12-15, 2019. pg. 8, W034. Available: https://www.intlpag.org/2019/images/pdf/2019/PAGXXVII-abstracts-workshops.pdf
  13. Ross, C.E., Choat, F.H., Plager, K.N., Desaulniers, A.T., Cederberg, R.A., Mills, G.A., White, B.R. 2019. Effect of GnRH-II and its receptor on boar semen quality. Reproduction, Fertility and Development. 32(2):201. https://doi.org/10.1071/RDv32n2Ab53.
  14. Ross, J.W., Hale, B.J., Seibert, J.T., Adur, M.K., Keating, A.F., Baumgard, L.H. 2019. Physiological mechanisms through which heat stress compromises reproduction in pigs. 52nd Annual Meeting Society for the Study of Reproduction, San Jose, CA. July 18-21.
  15. Schultz, R.B., Bidne, K.L., Romoser, M.R., Adur, M.K., Baumgard, L.H., Keating A.F., Ross, J.W. 2019. Effect of heat stress on the corpus luteum proteome during early pregnancy establishment in pigs. 52nd Annual Meeting Society for the Study of Reproduction, San Jose, CA. July 18-21.
  16. Sharp, K., Mills, K., Garcia, R., K.R. Stewart.   Impacts of various farrowing induction protocols in attended farrowings.  Midwest ASAS, Omaha, NE.
  17. Shirley, L.K., L.K. Shirley, M. Burgett,A.P. Schinckel, T. Field, R. Garcia, J.S. Johnson, K.R. Stewart, R.M. Stwalley. Evaluations of cooling pads on late lactation sows.  Midwest ASAS, Omaha, NE.
  18. Stewart, K.R., T. Casey, K. Mills, U.K. Aryal and A.M. Minton. Shotgun proteome anaylsis of seminal plasma proteins differentiate boars by reproductive performance.  ICBSP, Hunter Valley, Australia.
  19. Studer, J.M., Kiefer, Z.E., Keating, A.F., Baumgard, L.H., Olsen, K.M., Rambo, Z., Wilson, M.E., Rapp, C., Ross, J.W. 2019. Investigating the impact of manganese supplementation on corpus luteum function. 52nd Annual Meeting Society for the Study of Reproduction, San Jose, CA. July 18-21.
  20. Supakorn, C., Lents, C.A., Martinez, X., Vallet, J.L., Boyd, R.D., Rohrer, G.A., Dedecker, A.E., Stalder, K.J. 2019. Associations between day one piglet serum immunocrit ratio and subsequent growth during gilt development [abstract]. Journal of Animal Science. 97 (Supplement 2):146. Abstract 352. https://doi.org/10.1093/jas/skz122.258.
  21. Walsh, S., Miles, J.R., Wright-Johnson, E.C., Keel, B.N., Rempel, L.A., Pannier, A.K. 2019. Transcriptomic profiles of uniform populations of in vivo-produced spherical, ovoid, or tubular porcine embryos during the initiation of elongation. Reproduction, Fertility and Development. 32(2):152. https://doi.org/10.1071/RDv32n2Ab53.

07/12/2021

Basic Science and Technology

  1. Wijesena, H.R., Kachman, S.D., Lents, C.A., Riethoven, J.J., Trenhaile-Grannemann, M.D., Safranski, T.J., Spangler, M.L., Ciobanu, D.C. 2020. Fine mapping genetic variants associated with age at puberty and sow fertility using Sowpro90 genotyping array. Journal of Animal Science. 98(10):1-12. https://doi.org/10.1093/jas/skaa293.
  2. Azain, M., Cline, P.M., Tsai, T.C., Lents, C.A., Stelzleni, A.M., Dove, C.R. 2020. Interaction of dietary carbohydrate and fat on glucose metabolism in growing pigs. Research Square. pp. 22. https://doi.org/10.21203/rs.3.rs-48869/v1.
  3. Nastasijevic, I., Schmidt, J.W., Boskovic, M., Glisic, M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M., Bosilevac, J.M. 2020. Seasonal prevalence of Shiga toxin-producing Escherichia coli on pork carcasses for three steps of the harvest process at two commercial processing plants in the United States. Applied and Environmental Microbiology. 87(1):e01711-20. https://doi.org/10.1128/AEM.01711-20.
  4. Chaudhari, J., Liew, C., Workman, A.M., Riethoven, J.M., Steffen, D., Sillman, S., Vu, H.L.X. 2020. Host transcriptional response to persistent infection with a live-attenuated porcine reproductive and respiratory syndrome virus strain. Viruses. 12(8):817. https://doi.org/10.3390/v12080817.
  5. Vande Pol, K.D., Tolosa, A.F., Shull, C.M., Brown, C.B., Alencar, S.A., Lents, C.A., Ellis, M. 2021. Effect of drying and/or warming piglets at birth under warm farrowing room temperatures on piglet rectal temperature over the first 24 h after birth. Translational Animal Science. txab060. https://doi.org/10.1093/tas/txab060.
  6. Kerns K, Sharif M, Zigo M, Miller D, Sutovsky S. 2020. Sperm capacitation-induced zinc efflux is necessary for increased proteasomal activity and release from oviduct glycans of the sperm reservoir. Int J Mol Sci 21:2121.
  7. Sharif M, Kerns K, Sutovsky P, Bovin N, Miller. DJ  2021. Progesterone induces porcine sperm release from oviduct glycans in a proteasome-dependent manner. Reproduction. 161:449-457.
  8. Johnson, JS, JM Maskal, AW Duttlinger, KR. Kpodo, BR McConn, CJ Byrd, BT Richert, JN Marchant-Forde, DC Lay, SD Perry, MC Lucy, TJ Safranski.   In utero heat stress alters the postnatal innate immune response of pigs. J. Anim. Sci. 98 (12):1-13.
  9. Bernhard, CJ, KG Sharp, TJ Safranski, WR Lamberson and MC Lucy.   Reproduction and reproductive tract morphology of male and female pigs whose mothers were heat stressed during the second month of gestation.  J. Anim Sci. 98(11): 1-12.
  10. Maskal, J.M., AW Duttlinger, KR Kpodo, BR McConn, CJ Byrd, JN Marchant-Forde, DC Lay, SD Perry, MC Lucy, TJ Safranski, JS Johnson.   Evaluation and mitigation of the effects of in utero heat stress on piglet growth performance, postabsorptive metabolism, and stress response following weaning and transport.  J. Anim. Sci., 98(9):1-13.
  11. Ciccarelli M, Giassetti MI, Miao D, Oatley MJ, Robbins C, Lopez-Biladeau B, Waqas MS, Tibary A, Whitelaw B, Lillico S, Park CH, Park KE, Telugu B, Fan Z, Liu Y, Regouski M, Polejaeva IA, Oatley JM. Donor-derived spermatogenesis following stem cell transplantation in sterile NANOS2knockout males. Proc Natl Acad Sci U S A. 2020 Sep 29;117(39):24195-24204.  PMID: 32929012
  12. Park CH, Jeoung YJ, Uh KJ, Park KE, Bridge J, Powell A, Li J, Pence L, Zhang Y, Liu T, Sun H, Gu Y, Shen Y, Wu J, Belmonte J-C, Telugu BP*Extraembryonic Endoderm (XEN) Cells Capable of Contributing to Embryonic Chimeras Established from Pig Embryos. Stem Cell Reports. 2021 Jan 12;16(1):212-223. doi: 10.1016/j.stemcr.2020.11.011. PMID: 33338433
  13. Geisert R.D., A.E. Meyer, C.A. Pfeiffer, D.N. Johns, K. Lee, K.D. Wells, T.E. Spencer, and R.S. Prather. 2021. Gene Editing to Investigate Role of Conceptus Factors in Establishment of Pregnancy. Reproduction 161: R79-R88.
  14. Pfeiffer C.A., A.E. Meyer, K.E. Brooks, P.R. Chen, J. Milano-Foster, L.D. Spate, J.A. Benne, R. Cecil, M.S. Samuel, L.A. Ciernia, M.F. Smith, K.D. Wells, T.E. Spencer, R.S. Prather, and D. Geisert. 2020. Ablation of conceptus PTGS2 provides a new understanding of early pregnancy events in the pig. Biol Reprod 102:475-488. doi.org/10.1093/biolre/ioz192.
  15. Cho J, Uh K, Ryu J, Fang X, Bang S, Lee K. Development of PCR based approach to detect potential mosaicism in porcine embryos. Journal of Animal Reproduction and Biotechnology. 2020 Dec. 35. 4.
  16. Uh K, Ryu J, Farrell K, Wax N, Lee K. TET family regulates the embryonic pluripotency of porcine preimplantation embryos by maintaining the DNA methylation level of NANOG. Epigenetics. 2020 Nov;15(11):1228-1242. doi: 10.1080/15592294.2020.1762392. Epub 2020 May 13.
  17. Tumova L, Zigo M, Sutovsky P, Sedmikova M, Postlerova P (2020) Is the ubiquitin-proteasome system involved in the degradation of porcine beta-microseminoprotein during sperm capacitation? Int. J. Mol. Sci., 21(11):4151.
  18. Kerns K, Sharif M, Zigo M, Xu W, Hamilton L, Sutovsky M, Ellersieck M, Drobnis EZ, Oko R, Miller D, Sutovsky P (2020) Sperm cohort-specific zinc signature acquisition and capacitation-induced zinc flux regulate sperm-oviduct and sperm-zona pellucida interactions. Int. J. Mol. Sci., 21(6):2121; Special Issue on Advances in Molecular Regulation of Spermatozoa Function,
  19. Zigo M, Maňásková-Postlerová P, Zuidema D, Kerns K, Jonáková V, Tůmová L, Bubeníčková F, Sutovsky P (2020) Porcine model for the study of sperm capacitation, fertilization and male fertility. Cell Tissue Res., 380(2):237-262.
  20. Zuidema D, Sutovsky P (2020) The domestic pig as a model for the study of mitochondrial inheritance. Cell Tissue Res., 80(2):237-262. Special Issue on Animal Models,
  21. Pfeiffer, C.A., A.E. Meyer, K.E. Brooks, P.R. Chen, J.M. Foster, L.D. Spate, J.A. Benner, R. Cecil, M.S. Samuel, L.A. Ciernia, M.F. Smith, K.D. Wells, T.E. Spencer, R.S. Prather. 2020. Ablation of conceptus PTGS2 provides a new understanding of early pregnancy events in the pig. Biol. Reprod. Doi: 10/.1093/biolre/ioz192 PMID: 31616930, PMCID: PMC7523696.
  22. Stoian, A., R.R.R. Rowland, V. Petrovan, M. Sheahan, M.S. Samuel, K.M. Whitworth, K.D. Wells, J. Zhang, B. Beaton, M. Cigan, R.S. Prather. 2020. The use of cells from ANPEP knockout pigs to evaluate the role of aminopeptidase N (APN) as a receptor for porcine deltacoronavirus (PDCoV). Virology. 2020 Feb; 541:136-140. doi: 10.1016/j.virol.2019.12.007. Epub 2019 Dec 24. PMID: 32056711, PMCID: PMC7112016
  23. Chen, P.R., L.D. Spate, E.C. Leffeler, J.A. Benne, R.F. Cecil, T.K. Hord, R.S. Prather. 2020. Removal of hypotaurine from porcine embryo culture medium does not impair development of in vitro fertilization or somatic cell nuclear transfer-derived embryos at low oxygen tension. Molecular Reproduction and Development https:/doi: 10.1002/mrd.23393. PMID 32495478, PMCID: PMC7496716.
  24. Cecil, R.F., J.A. Benne, P.R. Chen, T.K. Hord, L.D. Spate, M.S. Samuel, R.S. Prather. 2020. Chemical stimulation of hypoxia in somatic cell nuclear transfer donor cells permits metabolic reprogramming and improved SCNT efficiency. Molecular Reproduction and Development https:/doi: 10.1002/mrd.23392 PMID 32558023, PMCID: PMC7496615.
  25. Lucas, C.G., A.M. Spate, M.S. Samuel, L.D. Spate, W.C. Warren, R.S. Prather, K.D. Wells. 2020. A novel swine sex-linked marker and its application across different mammalian species. Transgenic Research doi: 10.1007/s11248-020-00204-z. PMID: 32607872, PMCID: PMC7423754
  26. Ostedgaard, L.S., M.P. Price, K.M. Whitworth, M.H.A. Alaiwa, A.J. Fischer, A. Warrier, M. Samuel, L.D. Spate, P.D. Allen, B.M. Hilkin, G.S. R. Ibarra, M.E. Ortiz, B.J. Goodelll, S.E. Mather, L.S. Powers, M.R. Stroik, N.D. Gansmer, C.E. Hippee, K. Zarei, J.A. Goeken, T.R. Businga, E. A. Hoffman, D.K. Meyerholz, R.S. Prather, D.A. Stoltz, M.J. Welsh. 2020. Lack of submucosal glands impairs respiratory host defenses in pigs. eLife 2020;9:e59653. DOI: https://doi.org/10.7554/eLife.59653. PMID:33026343, PMCID: PMC7541087
  27. Koppes, E., B.K. Redel, M.A. Johnson, K.J. Shvorak, L. Ghaloul-Gonzalez, M.E. Yates, D.W. Lewis, S.M. Gollin, Y. Wu, S.E. Christ, M. Yerle, A. Leshinski, L.D. Spate, J. Benne, S. Murphy, M.S. Samuel, E.M. Walters, S.A. Hansen, K.D. Wells, J. Vockley, R.S. Prather, R.D. Nicholls. 2020. A porcine model of phenylketonuria generated by CRISPR/Cas9 genome editing. JCI Insight doi: 10.1172/jci.insight.141523. PMID: 33055427 PMCID: PMC7605535.

 

Boar Performance

  1. Mills, K.M., Aryal, U.K., Sobreira, T., Minton, A.M., Casey, T., and K.R. Stewart. 2020. Shotgun proteome analysis of seminal plasma differentiate boars by reproductive performance.  Theriogenology 157: 130-139.  doi.org/10.1016/j.theriogenology.2020.07.013
  2. Lents, C.A., Supakorn, C., DeDecker, A.E., Phillips, C.E., Boyd, R.D., Vallet, J.L., Rohrer, G.A., Foxcroft, G.R., Flowers, W.L., Trottier, N.L., Salak-Johnson, J.L., Bartol, F.F., Stalder, K.J. 2020. Dietary lysine-to-energy ratios for managing growth and pubertal development in replacement gilts. Applied Animal Science. 36(5):701-714. https://doi.org/10.15232/aas.2020-02016. DOI: https://doi.org/10.15232/aas.2020-02016
  3. Rempel, L.A., Parrish, J.J., Miles, J.R. 2020. Genes associated with chromatin modification within the swine placenta are differentially expressed due to factors associated with season. Frontiers in Genetics. 11:1019. https://doi.org/10.3389/fgene.2020.01019.
  4. Belstra, B.A., Willenburg, K.L., Gómez-López, D.H., Knox, R.V., Stewart, K.R., 2020. Effects of the number of sperm and site of uterine semen deposition on conception rate and the number of embryos in weaned sows receiving a single fixed-time insemination. Journal of Animal Science 98.
  5. Kerns K, Jankovitz J, Minton A, Kuster C, Robinson J, Sutovsky P (2020) Relationship between the length of sperm tail mitochondrial sheath and fertility traits in boars used for artificial insemination. Antioxidants, 9(11):1033. doi: 10.3390/antiox9111033
  6. Parrish JJ, PREDICITION OF FERTILITY IN MALES, US Patent App. 16/024,335; Patent granted May 2020.

 

Genetics and Genomics

  1. Johnson, J.S., Stewart, K.R., Safranski, T.J., Ross, J.W. and L.H. Baumgard.  2020.  In utero heat stress alters postnatal phenotypes in swine.  Theriogenology, 154:110-119. doi.org/10.1016/j.theriogenology.2020.05.013
  2. Wijesena, H.R., SD Kachman, CA Lents, JJ Riethoven, MD Trenhaile-Grannemann, TJ Safranski, ML Spangler, DC Ciobanu. Fine mapping genetic variants associated with age at puberty and sow fertility using SowPro90 genotyping array.   J. Anim. Sci. 98(10): 1-12.
  3. Johnson, J.S., KR Stewart, TJ Safranski, JW Ross, LH Baumgard. In utero heat stress alters postnatal phenotypes in swine. 2020. Theriogenology, 154: 110-119

 

Sow and Gilt Performance

  1. Belstra, B.A., Willenburg, K.L, Gómez-López, D.H., Knox, R.V., and K.R. Stewart. 2020. Effects of number of sperm and site of uterine deposition on conception rate and number of embryos in weaned sows receiving a single fixed time insemination.  J Anim Sci.,98:9, 1-10. doi:10.1093/jas/skaa260
  2. Suarez-Trujillo, A., Senn, K., Teeple, K., Casey, T., and K.R. Stewart. 2020. Technical Note: A standardized model to study effects of varying 24 h colostrum dose on postnatal growth and development. TAS, txaa212, doi.org/10.1093/tas/txaa212.
  3. Leonard, S.M., Xin, H., Brown-Brandl, T.M., Ramirez, B.C., Johnson, A.K., Dutta, S., Rohrer, G.A. 2021. Effects of farrowing stall layout and number of heat lamps on sow and piglet behavior. Applied Animal Behaviour Science. 239:105334. https://doi.org/10.1016/j.applanim.2021.105334.

 

Teaching and extension

  1. Mills, K.M., Schinckel, A.P., Casey, T.M., and K.R. Stewart. 2020. Evaluation of on-farm indicators of gilt reproductive performance potential at 21 days of age.  TAS, txaa210, doi.org/10.1093/tas/txaa210.  

 

 

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