An experiment w as conducted to study the phenotypic and genetic characteristics of serum FSH LH and progesterone in Duroc (D), Harbin W hite (H) and DxH pigs. There were no significant differences between sexes for these endocrine traits in these young pigs. The FSH concem rahon was higher than LH in contrast to sows. 

K. VGW Han, H. W Zhang, M. F Liu

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 19. Selection and quantitative genetics; growth; reproduction; lactation; fish; fiber; meat., , 272–275, 1994
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