Relationship Between Spermatozoa Motility, Egg Size, Fecundity and Fertilization Success in Salmo trutta abanticus

2006 ◽  
Vol 12 (4) ◽  
pp. 345-348 ◽  
Author(s):  
BOZKURT Yusuf ;SEÇER
Keyword(s):  
Salmo Trutta ◽  
Egg Size ◽  
Fertilization Success ◽  
Spermatozoa Motility

Effect of copper nanoparticles and ions on spermatozoa motility of sea trout (Salmo trutta m. Trutta L.)

2019 ◽  
Vol 211 ◽  
pp. 11-17 ◽  
Author(s):  
Monika Kowalska-Góralska ◽  
Katarzyna Dziewulska ◽  
Mateusz Kulasza
Keyword(s):  
Copper Nanoparticles ◽  
Salmo Trutta ◽  
Spermatozoa Motility ◽  
Sea Trout ◽  
Effect Of Copper

scholarly journals Male size does not correlate with fertilization success in two bufonid toads that show size-assortative mating

2013 ◽  
Vol 59 (6) ◽  
pp. 740-746 ◽  
Author(s):  
Xiao-Li Fan ◽  
Zhi-Hua Lin ◽  
Xiang Ji
Keyword(s):  
Body Size ◽  
Assortative Mating ◽  
Clutch Size ◽  
Egg Size ◽  
Dry Mass ◽  
Fertilization Success ◽  
Male Body ◽  
Mating Pattern ◽  
Male Size ◽  
Male Preference

Abstract We examined sexual size dimorphism (SSD), mating pattern, fertilization efficiency and female reproductive traits in two bufonid toads (Bufo gargarizans and Duttaphrynus melanostictus) to test the idea that importance of male body size for egg fertilization success depends on the mating pattern. Female-biased SSD was evident only in D. melanostictus. Female B. gar-garizans laid fewer larger eggs nearly three months earlier than did female D. melanostictus. Fertilization efficiencies on average were higher in B. gargarizans (95%) than in D. melanostictus (91%). Though differing in the degree of SSD, body size, breeding season, clutch size, egg size and fertilization efficiency, the two toads were similar in four aspects: (1) both showed size-assortative mating; (2) females did not tradeoff egg size against egg number; (3) male size, clutch size and clutch dry mass were greater in male-larger than in female-larger pairs after accounting for female snout-vent length (SVL); and (4) the ratio of male to female SVL did not affect fertilization efficiency. Our data show that: (1) a female preference for large males is likely not important in terms of egg fertilization success; (2) a male preference for large females is likely important because larger females are more fecund; and (3) size-assortative mating arises from a male preference for large females. Our study demonstrates that male size is not always important for egg fertilization success in anurans that show size-assortative mating.

Bigger is not always better: egg size influences survival throughout incubation in brown trout (Salmo trutta)

2012 ◽  
Vol 22 (2) ◽  
pp. 169-177 ◽  
Author(s):  
Thomas Régnier ◽  
Valérie Bolliet ◽  
Philippe Gaudin ◽  
Jacques Labonne
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Egg Size ◽  
Brown Trout Salmo Trutta

scholarly journals Comparing methanol-glucose and dimethyl-sulfoxide based extender for milt cryopreservation of brown trout (Salmo trutta)

2018 ◽  
Author(s):  
David Nusbaumer ◽  
Lucas Marques da Cunha ◽  
Claus Wedekind
Keyword(s):  
Dimethyl Sulfoxide ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Conservation Management ◽  
Fertilization Success ◽  
Potential Importance ◽  
Sperm Cryopreservation ◽  
Fertilization Rates ◽  
Egg Ratio ◽  
Brown Trout Salmo Trutta

AbstractThe potential importance of sperm cryopreservation for aquaculture and conservation management seems still undervalued, probably because the available protocols often lead to reduced fertilization success. We experimentally compared the effectiveness of two different freezing extenders for cryopreservation of brown trout (Salmo trutta) semen, controlling for possible male and female effects. The methanol-glucose based extender that we tested was significantly more effective than a common dimethyl-sulfoxide based extender (a commercial cryopreservation kit). We then studied the effectiveness of the methanol-glucose based extender at different sperm-egg ratios and found no significant differences in fertilization ability of fresh and cryopreserved milt at a sperm-egg ratio of at least 110,000:1. We conclude that brown trout sperm cryopreserved with this extender can be used even at low sperm-egg ratios without significant effects on fertilization rates.

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