Growth hormone receptor

Acute heat stress and dietary methionine effects on IGF-I, GHR, and UCP mRNA expression in liver and muscle of quails

A. P. Del Vesco, Gasparino, E., Zancanela, V., Grieser, D. O., Guimarães, S. E. F., Nascimento, C. S., Voltolini, D. M., Constantin, J., and Gasparin, F. S., Acute heat stress and dietary methionine effects on IGF-I, GHR, and UCP mRNA expression in liver and muscle of quails, vol. 13, pp. 7294-7303, 2014.

This study evaluated the expression of insulin-like growth factor I (IGF-I), growth hormone receptor (GHR), and uncoupling protein (UCP) mRNA in muscle and liver of quails that were in thermal comfort or exposed to heat stress and that were fed diets with or without methionine supplementation. Meat quails were fed a diet that either met the nutritional demands for methionine (MS) or did not meet this demand (methionine-deficient diet, MD). The animals were either kept at a thermal comfort temperature (25°C) or exposed to heat stress (38°C for 24 h starting on the 6th day).

Dietary methionine effects on IGF-I and GHR mRNA expression in broilers

A. P. Del Vesco, Gasparino, E., Neto, A. R. Oliveira, Guimarães, S. E. F., Marcato, S. M. M., and Voltolini, D. M., Dietary methionine effects on IGF-I and GHR mRNA expression in broilers, vol. 12, pp. 6414-6423, 2013.

This study aimed to evaluate liver and breast muscle insulin-like growth factor I (IGF-I) and growth hormone receptor (GHR) gene expression between broilers fed different methionine levels and sources. Broiler chicks were 22 to 42 days old, distributed in 5 treatments (control diet, DL1 - 0.08% DL-methionine, DL2 - 0.24% DL-methionine, MHA-FA1 - 0.11% methionine hydroxy analogue-free acid, and MHA-FA2 - 0.33% methionine hydroxy analogue-free acid). The broilers were euthanized by cervical dislocation.

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