TY - GEN AU - Whitehead,C AU - Bromage,N R AU - Breton,B AU - Matty,A J TI - Effect of altered photoperiod on serum gonadotrophin and testosterone levels in male rainbow trout [proceedings] SN - 0022-0795 PY - 1979///0925 KW - Animals KW - Gonadotropins, Pituitary KW - blood KW - Light KW - Male KW - Periodicity KW - Salmonidae KW - Testosterone KW - Trout N1 - Publication Type: Journal Article ER -