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pro vyhledávání: '"C. E. Sheffel"'
Publikováno v:
Journal of Animal Science. 54:830-836
Seventy-three multiparous beef cows (21 to 35 d postpartum) were used in an experiment with a 2 X 4 factorial design to test the effects of pretreatment with norgestomet and preovulatory gonadotropic stimulation on the life span of corpora lutea indu