On day 18 of pregnancy, conceptuses were surgically removed in order that rabbits would be left with seven, five, three, or one conceptus. During pregnancy, blood concentrations of relaxin were determined by radioimmunoassay. There was no difference between relaxin concentrations in rabbits carrying one versus seven conceptuses. The results indicate that conceptus number does not influence the blood concentration of relaxin in the rabbit.
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http://dx.doi.org/10.1111/j.1749-6632.2008.03811.x | DOI Listing |
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