TY - JOUR
AU - Koketsu,, Y.
AB - Abstract The objective of this experiment was to evaluate the influence of glucose infusion during lactation on LH secretion in the energy-restricted sow. Ten primiparous Landrace × Yorkshire sows (152 kg postfarrowing) were fed a low-energy (6.5 Mcal of ME/d), high-lysine (45 g/d), corn-soybean meal diet throughout lactation. On d 18 of lactation, sows received a continuous infusion (1 L/12 h) of glucose (50% dextrose solution) or .9% saline from 1200 to 2400. Blood samples were drawn every 15 min for an 18-h period on d 18 to evaluate concentrations of plasma glucose, serum insulin, and serum LH before (600 to 1200) and during (1215 to 2400) the infusions. The glucose infusion immediately increased (P < .001) plasma glucose and serum insulin relative to preinfusion levels. Glucose and insulin concentrations in sows receiving the glucose infusion were higher (P < .001) throughout the infusion period relative to concentrations in sows receiving a saline infusion. Glucose infusions had no influence on LH pulsatility during the 12-h infusion period. In contrast to the response observed in the nutrient-restricted gilt, these results indicate that glucose infusions do not result in an immediate increase in pulsatile LH secretion in the energy-restricted, lactating sow. This content is only available as a PDF. Author notes 2 Present address: Kansas State Univ., Manhattan 66501. Copyright © 1992 by American Society of Animal Science
TI - Influence of glucose infusions on luteinizing hormone secretion in the energy-restricted, primiparous, lactating sow
JO - Journal of Animal Science
DO - 10.2527/1992.7072202x
DA - 1992-07-01
UR - https://www.deepdyve.com/lp/oxford-university-press/influence-of-glucose-infusions-on-luteinizing-hormone-secretion-in-the-nFDhAPs0wQ
SP - 2202
EP - 2206
VL - 70
IS - 7
DP - DeepDyve
ER -