The influence of intramammary lipopolysaccharide infusion on serum Ca, P, vitamin D, cytokines and cortisol concentrations in lactating sows

Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine
J F WangJ E Lindberg

Abstract

Ten multiparous lactating sows were used to investigate whether intramammary infusion of lipopolysaccharides (LPS; Escherichia coli 0111:B4; 2.0 microg/kg of body weight) would affect the circulating concentrations of Ca, P, 25-hydroxyvitamin D (25-OHD), tumour necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) and cortisol. The sows were randomly allotted to either control group (control) or LPS-treated group with five individuals per group and were infused with either physiological saline solution or LPS solution. The rectal temperature and udder quarter appearance were recorded at 0 (just before infusion), 1, 3, 7, 12 or 24 h after infusion. Blood samples were taken at 0, 1, 3, 7, 12 or 24 h after infusion. Before infusion, the rectal temperatures of all sows were below 39.2 degrees C. At 3 and 7 h after infusion, the sows in the LPS group had a rectal temperature over 39.4 degrees C. At 24 h after infusion, the rectal temperatures returned to pre-infusion levels. Serum Ca and P concentrations in the LPS group decreased (P < 0.05) after LPS infusion compared with the control group at 1 h after infusion. No significant differences (P > 0.05) in the concentrations of 25-OHD were observed between groups control and LPS at ...Continue Reading

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Citations

May 12, 2009·The Journal of Chemical Physics·Gerrick E LindbergFeng Wang
Jul 27, 2020·Translational Animal Science·Marianne KaiserPia H Andersen
Oct 23, 2019·Journal of Animal Physiology and Animal Nutrition·Niklas A KarstAnnette Liesegang

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