Secretory profiles and production rate of growth hormone in ruminant lambs
1987; Elsevier BV; Volume: 27; Issue: 2B Linguagem: Inglês
10.1051/rnd
ISSN1297-9708
AutoresMichel Laurentie, Michel Jacques M.J. Duclos, Pierre‐Louis Toutain, J. CHARRIER, Monique BLANCHARD, J.-P. DULOR, Pierre‐Guy Marnet, Bruno Barenton,
Tópico(s)Reproductive Physiology in Livestock
ResumoSecretory profiles and production rates of growth hormone (GH) were determined in 6 ruminant lambs during winter.The mean GH concentrations (3.78 ± 2.17 ng/ml) calculated were based upon blood sampling obtained every 3 min using a withdrawal pump.Body clearance (0.162 + 0.031 1/h/kg) was calculated from bolus intravenous oGH administration.The data were analysed by non-linear regression analysis ; a bicompartmental model was selected to describe the data.Production rate was 14.6 ± 7.98 wg/kg/24 h.It has been emphasized that the experimental design used gave an accurate estimate of GH production rate.
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