helsheikh
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Please, ineed this article:rose3:
Influence of perioestrous suprabasal progesterone levels on cycle length, oestrous behaviour and ovulation in heifers Original Research Article
Animal Reproduction Science, Volume 37, Issue 2, January 1995, Pages 95-108
M. Duchens, M. Maciel, H. Gustafsson, M. Forsberg, H. Rodríguez-Martínez, L.-E. Edqvist
Influence of perioestrous suprabasal progesterone levels on cycle length, oestrous behaviour and ovulation in heifers Original Research Article
Animal Reproduction Science, Volume 37, Issue 2, January 1995, Pages 95-108
M. Duchens, M. Maciel, H. Gustafsson, M. Forsberg, H. Rodríguez-Martínez, L.-E. Edqvist