Human Chorionic gonadotropin is secreted by trophoblast of pregnant woman. Whether the same hormone is secreted in all organisms particularly rodents during their pregnancy?

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Hi and sorry for the delay in the answer,
The Human Gonadotropin is secreted also in rodents
Please look at the link I enclosed:
http://endo.endojournals.org/cgi/content/abstract/123/6/2683?ck=nck

hCG is name by sequence of amino acids produce from the human womb, similar name is use in similar secretion from horse, cow or other animals also. In cattle also hCG is secrete but some time it also called as bovine hCG or from mare called mare hCG.