In vitro maturation and fertilisation of bovine oocytes in relation to GH gene polymorphism (Leu/Val) Dorota Lechniak, Tatiana Adamowicz, Daniel Stanisławski and Dorota Kaczmarek Reprod. Nutr. Dev., 42 3 (2002) 275-280 DOI: 10.1051/rnd:2002019