Abstract
Two feeding experiments were carried out in 2 successive years with 28 cows of the Norwegian Red Cattle (NRF) in each experiment.
The cows were randomly distributed into 4 groups and subjected to different feeding regimens from 1 month prior to calving until 12 weeks after calving. The experimental design was factorial (2×2) with respect to protein content of the concentrate (17.5 % digestible crude protein (DCP) v.s. 12.5 % DCP) and concentrate allowances (standard v.s. substandard allowances after calving). Silage was offered ad libitum.
Samples for estimation of serum immunoglobulin-G, white blood cells and lymphocyte responses to the mitogens phytohemagglutinin, concanavalin A and pokeweed mitogen were collected 4 weeks prior to expected calving, and 2, 4 and 8 weeks after calving. The levels of milk immunoglobulin-G were estimated at calving and 2, 4 and 8 weeks after calving.
A significant positive relationship was found between the estimated energy balance and the lymphocyte response to mitogens. Little evidence was found for the existence of a significant relationsip between the immunologic parameters and plasma indicators of metabolic status. The lymphocyte response to phytohemagglutinin and levels of serum immunoglobulin-G increased, while levels of milk immunoglobulin-G decreased during the period from calving to 8 weeks after calving.
Increased milk somatic cell counts were associated with a significant decrease in the lymphocyte responses to mitogens.
Keywords: phytohemagglutinin, pokeweed mitogen, concanavalin-A, immunoglobulin-G, white blood cells, ketosis, liver function, plasma constituents, nutrition, underfeeding
Full Text
The Full Text of this article is available as a PDF (1.3 MB).
Acknowledgments
We wish to thank L. Midthjell, E. B. Gondrosen, L.-W. Fredriksen, H. Hansen and B. Johansen for excellent technical assistance. The experiment was financially supported by grants from The Norwegian Agricultural Research Council.
References
- Birkeland SA, Kristoffersen K. Lymphocyte transformation with mitogens and antigens during normal human pregnancy: a longitudinal study. Scand. J. Immunol. 1980;11:321–325. doi: 10.1111/j.1365-3083.1980.tb00240.x. [DOI] [PubMed] [Google Scholar]
- Bloom JC, Kenyon SJ, Gabuzda TG. Glucocorticoid effects on peripheral blood lymphocytes in cows infected with bovine leukemia virus. Blood. 1979;53:899–912. doi: 10.1182/blood.V53.5.899.899. [DOI] [PubMed] [Google Scholar]
- Burrells C, Wells PW, Sutherland AS. Reactivity of ovine lymphocytes to phytohaemagglutinin and pokeweed mitogen during pregnancy and in the immediate post-parturient period. Clin, exp. Immunol. 1978;33:410–415. [PMC free article] [PubMed] [Google Scholar]
- Chandra S, Chandra RK. Nutrition, immune response, and outcome. Progr. Food Nutrit. Sei. 1986;10:1–65. [PubMed] [Google Scholar]
- Gröhn Y, Lindberg L-A, Bruss ML, Farver TB. Fatty infiltration of liver in spontaneously ketotic dairy cows. J. Dairy Sei. 1983;66:2320–2328. doi: 10.3168/jds.S0022-0302(83)82088-8. [DOI] [PubMed] [Google Scholar]
- Larsen HJ. A whole blood method for measuring mitogen-induced transformation of sheep lymphocytes. Res. Vet. Sei. 1979;27:334–338. doi: 10.1016/S0034-5288(18)32803-0. [DOI] [PubMed] [Google Scholar]
- Lloyd SS. Immunosuppression during pregnancy and lactation. Irish vet. J. 1983;37:64–70. [Google Scholar]
- Lloyd S, Amerasinghe PH, Soulsby EJL. Periparturient immunosuppression in the bitch and its influence on infection with Toxacara canis. J. small Anim. Pract. 1983;24:237–247. doi: 10.1111/j.1748-5827.1983.tb00437.x. [DOI] [Google Scholar]
- Mancini G, Carbonara A, Heremans JF. Immunochemical quantitation of antigens by single radial immunodiffusion. Immunochemistry. 1965;2:235–254. doi: 10.1016/0019-2791(65)90004-2. [DOI] [PubMed] [Google Scholar]
- Miyasaka M, McCullagh P. Immunological responsiveness of maternal and foetal lymphocytes during normal pregnancy in the ewe. J. reprod. Immunol. 1981;2:15–27. doi: 10.1016/0165-0378(81)90025-5. [DOI] [PubMed] [Google Scholar]
- Mulcahy G, Quinn PJ. A review of immunomodulators and their application in veterinary medicine. J. vet. Pharmacol. Therap. 1986;9:119–139. doi: 10.1111/j.1365-2885.1986.tb00022.x. [DOI] [PubMed] [Google Scholar]
- Nonnecke BJ, Harp SA. Effects of chronic staphylococcal mastitis on mitogenic responses of bovine lymphocytes. J. Dairy Sei. 1985;68:3323–3328. doi: 10.3168/jds.S0022-0302(85)81242-X. [DOI] [PubMed] [Google Scholar]
- Parillo JE, Fauci AS. Mechanisms of glucocorticoid action on immune processes. Ann. Rev. Pharmacol. Toxicol. 1979;19:179–201. doi: 10.1146/annurev.pa.19.040179.001143. [DOI] [PubMed] [Google Scholar]
- Reid IM, Collins RA, Dew AM, Hill AW, Williams MR: Immune competence of dairy cows with fatty liver. Proc. 5th Internat. Conference on Production Disease in Farm Animals. Uppsala 1983, p. 191–194.
- Ropstad E, Halse K, Refsdal AO. Variations in parameters of liver function and plasma progesterone related to underfeeding and ketosis in a dairy herd. Acta vet. scand. 1989;30:185–197. doi: 10.1186/BF03548055. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Roth JA. Cortisol as mediator of stress-associated immunosuppression in cattle. In: Moberg G P, editor. Animal Stress. American Physiological Society. 1985. pp. 225–243. [Google Scholar]
- Saarinen P, Shaw JC. Studies on ketosis in dairy cattle. XIII. Lipids and ascorbic acid in liver and adrenals of cows with spontaneous and fasting ketosis. J. Dairy Sei. 1950;33:515–525. doi: 10.3168/jds.S0022-0302(50)91929-1. [DOI] [Google Scholar]
- SAS Statistical Analysis System . SAS User’s Guide: Statistics. Cary, N. C.: SAS Institute Inc.; 1982. [Google Scholar]
- Sheffy BE, Williams AJ. Nutrition and the immune response. J. Amer. vet. med. Ass. 1982;180:1073–1076. [PubMed] [Google Scholar]
- Snedecor GW. Statistical Methods. Ames, Iowa: Iowa State college Press.; 1959. p. 434. [Google Scholar]
- Targowski SP, Klucinski W. Reduction in mitogenic response of bovine lymphocytes by ketone bodies. Amer. J. vet. Res. 1983;44:828–830. [PubMed] [Google Scholar]
- Wells PW, Burrells C, Martin WB. Reduced mitogenic responses in cultures of lymphocytes from newly calved cows. Clin. exp. Immunol. 1977;29:159–161. [PMC free article] [PubMed] [Google Scholar]
- Yamamoto T, Hirata H, Taniguchi H, Kawai Y, Vematsu A, Sugiyama Y. Lymphocyte transformation during pregnancy. An analysis using whole blood culture. Obstet. Gynec. 1980;55:215–219. [PubMed] [Google Scholar]
- Yang TJ, Jantzen-Abo PA, Williams LF. Depression of ß-lymphocyte levels in the peripheral blood of cows with mastitis. Infect. Immun. 1980;27:90–93. doi: 10.1128/IAI.27.1.90-93.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]