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Optimization of fertilization success in Sander vitreus is influenced by the sperm : egg ratio and ova storage
Author(s) -
Rinchard J.,
Dabrowski K.,
Van Tassell J. J.,
Stein R. A.
Publication year - 2005
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.0022-1112.2005.00800.x
Subject(s) - human fertilization , biology , sander , sperm , sex ratio , reproduction , zoology , andrology , ecology , anatomy , botany , mechanical engineering , medicine , population , demography , sociology , engineering
Walleye Sander vitreum eggs could be stored at 7° C for up to 30 h with 60% fertilization rates. Fertilization rates at 1 and 12° C fell to 17 and 5%, respectively. At spermatozoa : egg ratios <25 000 : 1, survival to the eyed stage declined precipitously. Beyond a ratio of 25 000 : 1, survival to the eyed stage did not increase > c . ∼ 70%. Therefore, a standard spermatozoa : egg ratio of 25 000 : 1 was established and is recommended for studies concerning fertilizing success.