The growth hormone-releasing factor (GHRF) is released by the hypothalamus and acts on the adenohypophyse to stimulate the secretion of growth hormone.Ovine: H-Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Ile-Leu-Gly-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Asn-Arg-Gln-Gln-Gly-Glu-Arg-Asn-Gln-Glu-Gln-Gly-Ala-Lys-Val-Arg-Leu-NH2 or H-YADAIFTNSYRKILGQLSARKLLQDIMNRQQGERNQEQGAKVRL-NH2