Wellnitz, Olga

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Jermann, P M; Wagner, L A; Fritsche, D; Gross, J J; Wellnitz, O; Bruckmaier, R M (2023). Acute phase reaction to LPS induced mastitis in early lactation dairy cows fed nitrogenic, glucogenic or lipogenic diets. (In Press). Journal of dairy science Elsevier 10.3168/jds.2023-23582

Tuor, Marion; Wellnitz, Olga; Bruckmaier, Rupert M (2023). The interplay of continuous milk ejection and milking system with and without prestimulation at different vacuum settings. Journal of dairy science, 106(5), pp. 3615-3624. Elsevier 10.3168/jds.2022-22661

Wagner, Lea A; Fritsche, Dominik; Gross, Josef J; Bruckmaier, Rupert M; Wellnitz, Olga (2023). Effects of different nutrient supply on metabolism and mammary immune response to an LPS challenge in early lactation of dairy cows. Journal of dairy science, 106(4), pp. 2948-2962. American Dairy Science Association 10.3168/jds.2022-22641


Jermann, P M; Fritsche, D; Wagner, L A; Wellnitz, O; Bruckmaier, R M; Gross, J J (2022). Effect of different dietary regimens at dry-off on performance, metabolism, and immune system in dairy cows. Journal of dairy science, 105(5), pp. 4624-4642. American Dairy Science Association 10.3168/jds.2021-21747

Jermann, Pascaline Maria; Fritsche, Dominik; Wagner, Lea Alexandra; Wellnitz, Olga; Bruckmaier, Rupert; Gross, Josef Johann (2022). Supplementary data to publication in “Journal of Dairy Science” (DOI: https://doi.org/10.3168/jds.2021-21747): Impact of different dietary regimens at dry-off on performance, metabolism, and immune system in dairy cows [Dataset].


Ayrle, Hannah; Mevissen, Meike; Bruckmaier, Rupert M.; Wellnitz, Olga; Kaske, Martin; Bieber, Anna; Vögtlin, Andrea; Fricker, Raffael; Walkenhorst, Michael (2021). Effects of an oral hydro-ethanolic purple coneflower extract on performance, clinical health and immune parameters in calves. Research in veterinary science, 138, pp. 148-160. Elsevier 10.1016/j.rvsc.2021.05.022

Wellnitz, O.; Bruckmaier, R. M. (2021). Invited review: The role of the blood-milk barrier and its manipulation for the efficacy of the mammary immune response and milk production. Journal of dairy science, 104(6), pp. 6376-6388. American Dairy Science Association 10.3168/jds.2020-20029

Lüttgenau, J; Imboden, I; Wellnitz, O.; Romer, R; Scaravaggi, I; Neves, A P; Borel, N; Bruckmaier, R.M.; Janett, F; Bollwein, H (2021). Intrauterine infusion of killed semen adversely affects uterine blood flow and endometrial gene expression of inflammatory cytokines in mares susceptible to persistent breeding-induced endometritis. Theriogenology, 163, pp. 18-30. Elsevier 10.1016/j.theriogenology.2020.12.029

Stürmlin, Remo; Gross, Josef J.; Wellnitz, Olga; Wagner, Lea A.; Monney, Camille; Oevermann, Anna; Bruckmaier, Rupert M. (2021). Influence of nutrient availability on in vitro growth of major bovine mastitis pathogens. Journal of dairy research, 88(1), pp. 80-88. Cambridge University Press 10.1017/S0022029921000133

Caldeira, M. O.; Bruckmaier, R. M.; Wellnitz, O. (2021). Effects of local or systemic administration of meloxicam on mammary gland inflammatory responses to lipopolysaccharide-induced mastitis in dairy cows. Journal of dairy science, 104(1), pp. 1039-1052. American Dairy Science Association 10.3168/jds.2020-18691


Sintes, G. F.; Bruckmaier, R. M.; Wellnitz, O. (2020). Nonsteroidal anti-inflammatory drugs affect the mammary epithelial barrier during inflammation. Journal of dairy science, 103(11), pp. 10742-10753. American Dairy Science Association 10.3168/jds.2020-18818

Gross, J. J.; Grossen-Rösti, L.; Wall, S. K.; Wellnitz, O.; Bruckmaier, R. (2020). Metabolic status is associated with the recovery of milk somatic cell count and milk secretion after lipopolysaccharide-induced mastitis in dairy cows. Journal of dairy science, 103(6), pp. 5604-5615. American Dairy Science Association 10.3168/jds.2019-18032

Meese, S.; Ulbrich, S. E.; Bollwein, H.; Bruckmaier, R.; Wellnitz, O.; Kreuzer, M.; Röntgen, M.; Gimsa, U.; Schwarm, A. (2020). Methane emission, metabolism, and performance of Holstein dairy cows with low, medium, and high lymphocyte proliferation during transition. Journal of dairy science, 103(5), pp. 4367-4377. American Dairy Science Association 10.3168/jds.2019-17584


Dan, Denisa; Bruckmaier, Rupert M.; Wellnitz, Olga (2018). Ketoprofen affects the mammary immune response in dairy cows in vivo and in vitro. Journal of dairy science, 101(12), pp. 11321-11329. American Dairy Science Association 10.3168/jds.2018-15034

Josi, Christoph; Bürki, Sibylle; Stojiljkovic, Ana; Wellnitz, Olga; Stoffel, Michael Hubert; Pilo, Paola (2018). Bovine Epithelial in vitro Infection Models for Mycoplasma bovis. Frontiers in cellular and infection microbiology, 8, p. 329. Frontiers 10.3389/fcimb.2018.00329

Wall, Samantha K.; Wellnitz, Olga; Bruckmaier, Rupert M.; Schwarz, Daniel (2018). Differential somatic cell count in milk before, during, and after lipopolysaccharide- and lipoteichoic-acid-induced mastitis in dairy cows. Journal of dairy science, 101(6), pp. 5362-5373. American Dairy Science Association 10.3168/jds.2017-14152

Neuheuser, Anna-Lena; Schwinn, Ann-Catherine Silvia; Wellnitz, Olga; Hernandez Castellano, Lorenzo Enrique; Bruckmaier, Rupert (2018). Reduced claw vacuum and b-phase during low milk flow does not impact oxytocin release and milking performance. Journal of dairy research, 85(1), pp. 70-77. Cambridge University Press 10.1017/S0022029917000504

Hernández-Castellano, Lorenzo E.; Baumrucker, Craig R.; Gross, Josef Johann; Wellnitz, Olga; Bruckmaier, Rupert (2018). Colostrum Proteomics Research: A Complex Fluid with Multiple Physiological Functions. In: Almeida, Andre Martinho de; Eckersall, David; Miller, Ingrid (eds.) Proteomics in Domestic Animals: from Farm to Systems Biology (pp. 149-167). Cham: Springer 10.1007/978-3-319-69682-9_8


Bruckmaier, Rupert; Wellnitz, Olga (2017). TRIENNIAL LACTATION SYMPOSIUM/BOLFA: Pathogen-specific immune response and changes in the blood-milk barrier of the bovine mammary gland. Journal of animal science, 95(12), pp. 5720-5728. American Society of Animal Science 10.2527/jas2017.1845

De Matteis, L; Bertoni, G; Lombardelli, R; Wellnitz, Olga; van Dorland, Hendrika Anette; Vernay, Martin César; Bruckmaier, Rupert; Trevisi, E (2017). Acute phase response in lactating dairy cows during hyperinsulinemic hypoglycaemic and hyperinsulinemic euglycaemic clamps and after intramammary LPS challenge. Journal of animal physiology and animal nutrition, 101(3), pp. 511-520. Blackwell Science 10.1111/jpn.12463

Besier, Johanna Franziska; Schüpbach, Gertraud; Wellnitz, Olga; Bruckmaier, Rupert (2017). Technical note: Effects of attachment of hind teats before cleaning and attachment of front teats on milking characteristics in automatic milking systems. Journal of dairy science, 100(4), pp. 3091-3095. American Dairy Science Association 10.3168/jds.2016-11712

Farmer, C; Amezcua, M; Bruckmaier, Rupert; Wellnitz, Olga; Friendship, R (2017). Does duration of teat use in first parity affect milk yield and mammary gene expression in second parity? Journal of animal science, 95(2), pp. 681-687. Oxford University Press 10.2527/jas.2016.1119

Giovannini, Annalisa; van den Borne, Bart; Wall-Villez, Samantha Kay; Wellnitz, Olga; Bruckmaier, Rupert; Spadavecchia, Claudia (2017). Experimentally induced subclinical mastitis: are lipopolysaccharide and lipoteichoic acid eliciting similar pain responses? Acta Veterinaria Scandinavica, 59(1), p. 40. BioMed Central Ltd. 10.1186/s13028-017-0306-z


Lüttgenau, J; Lingemann, B; Wellnitz, Olga; Hankele, A K; Schmicke, M; Ulbrich, S E; Bruckmaier, Rupert; Bollwein, H (2016). Repeated intrauterine infusions of lipopolysaccharide alter gene expression and lifespan of the bovine corpus luteum. Journal of dairy science, 99(8), pp. 6639-6653. American Dairy Science Association 10.3168/jds.2015-10806

Leimbach, Andreas; Poehlein, Anja; Witten, Anika; Wellnitz, Olga; Shpigel, Nahum; Petzl, Wolfram; Zerbe, Holm; Daniel, Rolf; Dobrindt, Ulrich (2016). Whole-Genome Draft Sequences of Six Commensal Fecal and Six Mastitis-Associated Escherichia coli Strains of Bovine Origin. Genome Announcements, 4(4) American Society for Microbiology 10.1128/genomeA.00753-16

Wellnitz, Olga; Zbinden, Christina; Huang, Xiao; Bruckmaier, Rupert (2016). Short communication: Differential loss of bovine mammary epithelial barrier integrity in response to lipopolysaccharide and lipoteichoic acid. Journal of dairy science, 99(6), pp. 4851-4856. American Dairy Science Association 10.3168/jds.2016-10927

Lüttgenau, J; Wellnitz, Olga; Kradolfer, D; Kalaitzakis, E; Ulbrich, S E; Bruckmaier, Rupert; Bollwein, H (2016). Intramammary lipopolysaccharide infusion alters gene expression but does not induce lysis of the bovine corpus luteum. Journal of dairy science, 99(5), pp. 4018-4031. American Dairy Science Association 10.3168/jds.2015-10641

Lüttgenau, J; Möller, B; Kradolfer, D; Wellnitz, Olga; Bruckmaier, Rupert; Miyamoto, A; Ulbrich, S E; Bollwein, H (2016). Lipopolysaccharide enhances apoptosis of corpus luteum in isolated perfused bovine ovaries in vitro. Reproduction, 151(1), pp. 17-28. BioScientifica 10.1530/REP-15-0281

Wall-Villez, Samantha Kay; Wellnitz, Olga; Hernandez Castellano, Lorenzo Enrique; Ahmadpour, Amir; Bruckmaier, Rupert (2016). Supraphysiological oxytocin increases the transfer of immunoglobulins and other blood components to milk during lipopolysaccharide- and lipoteichoic acid–induced mastitis in dairy cows. Journal of dairy science, 99(11), pp. 9165-9173. American Dairy Science Association 10.3168/jds.2016-11548

Wall-Villez, Samantha Kay; Hernandez Castellano, Lorenzo Enrique; Ahmadpour, Amir; Bruckmaier, Rupert; Wellnitz, Olga (2016). Differential glucocorticoid-induced closure of the blood-milk barrier during lipopolysaccharide- and lipoteichoic acid-induced mastitis in dairy cows. Journal of dairy science, 99(9), pp. 7544-7553. American Dairy Science Association 10.3168/jds.2016-11093


Zbinden, Christina; Pilo, Paola; Frey, Joachim; Bruckmaier, Rupert; Wellnitz, Olga (2015). The immune response of bovine mammary epithelial cells to live or heat-inactivated Mycoplasma bovis. Veterinary microbiology, 179(3-4), pp. 336-340. Elsevier 10.1016/j.vetmic.2015.07.007

Gross, Josef Johann; van Dorland, H A; Wellnitz, Olga; Bruckmaier, Rupert (2015). Glucose transport and milk secretion during manipulated plasma insulin and glucose concentrations and during LPS-induced mastitis in dairy cows. Journal of animal physiology and animal nutrition, 99(4), pp. 747-756. Blackwell Science 10.1111/jpn.12259

Gross, Josef Johann; Wellnitz, Olga; Bruckmaier, Rupert (2015). Cortisol secretion in response to metabolic and inflammatory challenges in dairy cows. Journal of animal science, 93(7), pp. 3395-3401. American Society of Animal Science 10.2527/jas.2015-8903

Zarrin, Mousa; Wellnitz, Olga; Bruckmaier, Rupert (2015). Conjoint regulation of glucagon concentrations via plasma insulin and glucose in dairy cows. Domestic animal endocrinology, 51, pp. 74-77. Elsevier 10.1016/j.domaniend.2014.11.004

Wellnitz, Olga; Zbinden, Christina; Lüttgenau, Johannes; Bollwein, Heinrich; Bruckmaier, Rupert (2015). Different chronological patterns of appearance of blood derived milk components during mastitis indicate different mechanisms of transfer from blood into milk. Journal of dairy research, 82(3), pp. 322-327. Cambridge University Press 10.1017/S0022029915000345

Lehmann, Mirjam; Wall-Villez, Samantha Kay; Wellnitz, Olga; Bruckmaier, Rupert (2015). Changes in milk L-lactate, lactate dehydrogenase, serum albumin, and IgG during milk ejection and their association with somatic cell count. Journal of dairy research, 82(2), pp. 129-134. Cambridge University Press 10.1017/S002202991400065X


Zbinden, Christina; Stephan, Roger; Johler, Sophia; Borel, Nicole; Bünter, Julia; Bruckmaier, Rupert; Wellnitz, Olga (2014). The Inflammatory Response of Primary Bovine Mammary Epithelial Cells to Staphylococcus aureus Strains Is Linked to the Bacterial Phenotype. PLoS ONE, 9(1), e87374. Public Library of Science 10.1371/journal.pone.0087374

Wellnitz, Olga; Wall-Villez, Samantha Kay; Saudenova, Makhabbat; Bruckmaier, Rupert (2014). Effect of intramammary administration of prednisolone on the blood-milk barrier during the immune response of the mammary gland to lipopolysaccharide. American journal of veterinary research, 75(6), pp. 595-601. American Veterinary Medical Association 10.2460/ajvr.75.6.595

Baumrucker, Craig; Stark, Andrea; Wellnitz, Olga; Dechow, Chad; Bruckmaier, Rupert (2014). Short communication: Immunoglobulin variation in quarter-milked colostrum. Journal of dairy science, 97(6), pp. 3700-3706. American Dairy Science Association 10.3168/jds.2013-7107

Zarrin, Mousa; Wellnitz, Olga; van Dorland, Hendrika Anette; Gross, Josef Johann; Bruckmaier, Rupert (2014). Hyperketonemia during lipopolysaccharide-induced mastitis affects systemic and local intramammary metabolism in dairy cows. Journal of dairy science, 97(6), pp. 3531-3541. American Dairy Science Association 10.3168/jds.2013-7480

Zarrin, Mousa; Wellnitz, Olga; van Dorland, Hendrika Anette; Bruckmaier, Rupert (2014). Induced hyperketonemia affects the mammary immune response during lipopolysaccharide challenge in dairy cows. Journal of dairy science, 97(1), pp. 330-339. American Dairy Science Association 10.3168/jds.2013-7222


Stark, Andrea; Vachkova, E.; Wellnitz, Olga; Bruckmaier, Rupert M.; Baumrucker, C. (2013). Colostrogenesis: candidate genes for IgG1 transcytosis mechanisms in primary bovine mammary epithelial cells. Journal of animal physiology and animal nutrition, 97(6), pp. 1114-1124. Blackwell Science 10.1111/jpn.12021

Zarrin, Mousa; De Matteis, L.; Vernay, Martin C. M. B.; Wellnitz, Olga; van Dorland, Hendrika Anette; Bruckmaier, Rupert M. (2013). Long-term elevation of β-hydroxybutyrate in dairy cows through infusion: effects on feed intake, milk production, and metabolism. Journal of dairy science, 96(5), pp. 2960-2972. American Dairy Science Association 10.3168/jds.2012-6224

Wellnitz, Olga; Arnold, Emanuel; Lehmann, Mirjam; Bruckmaier, Rupert M (2013). Short communication: differential immunoglobulin transfer during mastitis challenge by pathogen-specific components. Journal of dairy science, 96(3), pp. 1681-1684. American Dairy Science Association 10.3168/jds.2012-6150

Lehmann, Mirjam; Wellnitz, Olga; Bruckmaier, Rupert M. (2013). Concomitant lipopolysaccharide-induced transfer of blood-derived components including immunoglobulins into milk. Journal of dairy science, 96(2), pp. 889-896. American Dairy Science Association 10.3168/jds.2012-5410


Brand, Bodo; Hartmann, Anja; Repsilber, Dirk; Griesbeck-Zilch, Bettina; Wellnitz, Olga; Kühn, Christa; Ponsuksili, Sirluck; Meyer, Heinrich HD; Schwerin, Manfred (2011). Comparative expression profiling of E. coli and S. aureus inoculated primary mammary gland cells sampled from cows with different genetic predispositions for somatic cell score. Genetics selection evolution, 43(1), p. 24. Paris: BioMed Central 10.1186/1297-9686-43-24

Castro, N.; Spengler, M.; Lollivier, V.; Wellnitz, O.; Meyer, H.H.D.; Bruckmaier, R.M. (2011). Diurnal pattern of melatonin in blood and milk of dairy Cows. Milchwissenschaft, 66(4), pp. 352-353. Kempten: AVA Agrar-Verlag Allgäu

Kreipe, L.; Vernay, M.C.; Oppliger, A.; Wellnitz, O.; Bruckmaier, R.M.; van Dorland, H.A. (2011). Induced hypoglycemia for 48 hours indicates differential glucose and insulin effects on liver metabolism in dairy cows. Journal of dairy science, 94(11), pp. 5435-48. Savoy, Ill.: American Dairy Science Association 10.3168/jds.2011-4208

Wellnitz, O.; Arnold, E.T.; Bruckmaier, R.M. (2011). Lipopolysaccharide and lipoteichoic acid induce different immune responses in the bovine mammary gland. Journal of dairy science, 94(11), pp. 5405-12. Savoy, Ill.: American Dairy Science Association 10.3168/jds.2010-3931


Goto, K.; Urashima, T.; Asakuma, S.; Komoda, M.; Nakamura, T.; Fukuda, K.; Wellnitz, Olga; Bruckmaier, Rupert (2010). Hexose, sialic acid and sialyllactose concentrations in the milk of dairy and non-dairy breed cows. Milchwissenschaft, 65(4), pp. 352-356. Kempten: AVA Agrar-Verlag Allgäu

Larsen, L.B.; Hinz, K.; Jorgensen, A.L.; Moller, H.S.; Wellnitz, O.; Bruckmaier, R.M.; Kelly, A.L. (2010). Proteomic and peptidomic study of proteolysis in quarter milk after infusion with lipoteichoic acid from Staphylococcus aureus. Journal of dairy science, 93(12), pp. 5613-26. Savoy, Ill.: American Dairy Science Association 10.3168/jds.2010-3409

Wellnitz, O.; Baumert, A.; Saudenowa, M.; Bruckmaier, R.M. (2010). Immune response of bovine milk somatic cells to endotoxin in healthy quarters with normal and very low cell counts. Journal of dairy research, 77(4), pp. 452-9. London: Cambridge University Press 10.1017/S0022029910000348


Wellnitz, O.; Doherr, M.G.; Woloszyn, M.; Bruckmaier, R.M. (2009). Prediction of total quarter milk somatic cell counts based on foremilk sampling. Journal of dairy research, 76(3), pp. 326-30. London: Cambridge University Press 10.1017/S0022029909004166

Baumert, A.; Bruckmaier, R.M.; Wellnitz, O. (2009). Cell population, viability, and some key immunomodulatory molecules in different milk somatic cell samples in dairy cows. Journal of dairy research, 76(3), pp. 356-64. London: Cambridge University Press 10.1017/S0022029909004129

Griesbeck-Zilch, B.; Osman, M.; Kuhn, Ch.; Schwerin, M.; Bruckmaier, Rupert; Pfaffl, M.W.; Hammerle-Fickinger, A.; Meyer, H.H.; Wellnitz, Olga (2009). Analysis of key molecules of the innate immune system in mammary epithelial cells isolated from marker-assisted and conventionally selected cattle. Journal of dairy science, 92(9), pp. 4621-33. Savoy, Ill.: American Dairy Science Association 10.3168/jds.2008-1954


Griesbeck-Zilch, B; Meyer, H H D; Kühn, C H; Schwerin, M; Wellnitz, O. (2008). Staphylococcus aureus and Escherichia coli cause deviating expression profiles of cytokines and lactoferrin messenger ribonucleic acid in mammary epithelial cells. Journal of dairy science, 91(6), pp. 2215-2224. American Dairy Science Association 10.3168/jds.2007-0752


Rabot, Aline; Wellnitz, Olga; Meyer, Heinrich H D; Bruckmaier, Rupert M (2007). Use and relevance of a bovine mammary gland explant model to study infection responses in bovine mammary tissue. Journal of dairy research, 74(1), pp. 93-9. London: Cambridge University Press 10.1017/S0022029906002147

Bruckmaier, Rupert; Wellnitz, Olga (2007). Immune reaction of the bovine mammary gland in response to bacterial toxin stimulation. In: Proceedings of the 13th International Conference on Production Diseases in Farm Animals. Leipzig, Germany. 29.7.-3.8.2007.


Wellnitz, O; Reith, P; Haas, CC; Meyer, HHD (2006). Immune relevant gene expression of mammary epithelial cells and their influence on leukocyte chemotayis in response to different mastitis pathogens. Veterinární medicína, 4(51), pp. 125-132. Praha: Československá akademie zemědělská, Ústav védeckotechnických informací pro zemědělstvi

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