title: The influence of the gonad on the degeneration of the intestine in migrating river lampreys: Lampetra fluviatilis L. (Cyclostomata).
mesh_terms: D000818:Animals; D001284:Atrophy; D001835:Body Weight; D002369:Castration; D002766:Cholecystokinin / Q000378:metabolism; D002918:Chymotrypsin / Q000032:analysis; D005260:Female; D005399:Fishes; D005618:Fresh Water; D007422:Intestines / Q000033:anatomy & histology / Q000201:enzymology / Q000254:growth & development* / Q000503:physiopathology; D008297:Male; D008853:Microscopy; D009929:Organ Size; D010053:Ovary / Q000502:physiology*; D013194:Staining and Labeling; D013737:Testis / Q000502:physiology*; D013997:Time Factors; D014357:Trypsin / Q000032:analysis
chemical_list: D002766:Cholecystokinin; D002918:Chymotrypsin; D014357:Trypsin