Title: Temporal secretory patterns of growth-hormone in the danish broiler lines selected for high body-weight or for improved food efficiency
Authors: Buyse, Johan ×
Sorensen, P
Hedemand, J
Decuypere, Eddy #
Issue Date: Nov-1995
Publisher: Munksgaard int publ ltd
Series Title: Acta agriculturae scandinavica section a-animal science vol:45 issue:4 pages:260-265
Abstract: Plasma growth hormone (GH) secretory profiles of S-week-old male and female broiler chickens selected for high body weight at 42 days of age (GL line) or for improved food efficiency between 18 and 39 days of age (FCR line) were compared. A pulsatile GH secretory pattern was still present for all the 8-week-old chickens examined. Overall mean GH levels, and to a lesser extent GH baseline and GH amplitude values, were higher for FCR chickens compared with GL chickens. Mean GH concentrations, baseline and amplitudes were slightly, but not significantly, superior in males. Length and frequency of pulses were not influenced by line or sex. In view of the current knowledge on age- and sex-related changes in pulsatile GH secretion, it is argued that the line and sex differences would have been more pronounced in younger chickens. Based on this, the hypothesis that the amplitude of the pulsatile GH release is related to protein conversion efficiency and protein deposition rather than to average body weight gain is corroborated.
ISSN: 0906-4702
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Livestock-Nutrition-Quality (-)
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science