Late gestation metabolizable energy intake is associated with modest differences in adipose tissue insulin responsiveness in antepartum beef cattle.

ABSTRACT: The objective of this study was to evaluate whether different metabolizable energy (ME) intakes would affect insulin responsiveness in late gestation beef cattle. Primiparous and multiparous cattle were fed rations that supplied 78% (LowME, n = 7 heifers and 12 cows) or 120% (HighME, n = 9 heifers and 10 cows) of predicted ME requirements from day -52 until calving, and then fed a common lactation ration. Body weight and rib and rump fat depth were measured every 2 wk prior to calving and on days 7, 13, 28, and 55 after calving. Plasma and serum were collected on day -3 and 7 relative to calving. Cattle underwent an intravenous glucose tolerance test (IVGTT) and a subcutaneous adipose biopsy on day -7 and -6, respectively. Prepartum body weight was similar (P = 0.62) for LowME and HighME c

SUBMITTER: Hare KS 

PROVIDER: S-EPMC12918310 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature