Plasma levels of luteinizing hormone, growth hormone, and estradiol from six weeks of age to sexual maturity in two lines of chickens selected for low or high abdominal fat content.
An experiment was conducted to investigate possible differences in plasma hormone levels between females of two lines of chickens selected for high (FL) or low (LL) abdominal fat content. Blood was taken at weekly intervals from 6 weeks of age to sexual maturity, and assays were performed for luteinizing hormone (LH), growth hormone (GH), and estradiol (E2). Age-related increases in the plasma titers of LH and estradiol were found while GH remained low apart from initial and final fluctuations. There was no difference between the strains in plasma E2, only minor differences in plasma GH, but a clear-cut difference was observed in plasma LH during the prepubertal period. Plasma LH tended to be higher in the LL, but the reason for this remains unclear.
D000273:Adipose Tissue / Q000378:metabolism*; D000375:Aging; D000818:Animals; D002645:Chickens / Q000097:blood*; D004958:Estradiol / Q000097:blood*; D005260:Female; D013006:Growth Hormone / Q000097:blood*; D007986:Luteinizing Hormone / Q000097:blood*; D012741:Sexual Maturation; D013045:Species Specificity
D004958:Estradiol; D007986:Luteinizing Hormone; D013006:Growth Hormone