Effects of dietary CLA supplementation, parity and different concentrate levels before calving on immunoglobulin G1, G2 and M concentrations in dairy cows.

Peripartal dairy cows exhibit a higher susceptibility for infectious diseases, which might be linked to the negative energy balance occurring at the onset of lactation. A dietary supplementation of conjugated linoleic acids (CLA) may reduce milk fat yield and subsequently lower the energy deficit. The utilization of immunoglobulins (Ig) for colostrogenesis might impair humoral immunity in peripartal dairy cows; therefore this study investigated the effects of a CLA supplement, parity and different dietary energy levels on plasma and colostrum IgG1, IgG2 and IgM levels in dairy cows and their calves.

trans-Resveratrol and ε-viniferin decrease glucose absorption in porcine jejunum and ileum in vitro.

trans-Resveratrol and ε-viniferin are used as dietary supplements. They are reported to be supportive in preventing arteriosclerosis and diabetes and a previous study could demonstrate an inhibitory potential on sodium-dependent glucose transport (SGLT1) in oocytes und mouse intestinal everted rings (Schulze et al., 2012, Genes Nutr.