Fecundity and egg size
Sperm quality, egg size, fecundity and their relationships with fertilization rate of grass carp (Ctenopharyngodon idella)
... achieve egg penetration (Chauvaud et ...Therefore fecundity, egg size and sperm quality parameters should be considered together to estimate fertilization ...
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Seasonal and interpopulational variability in fecundity, egg size, and elemental composition (CHN) of eggs and larvae in a grapsoid crab, Chasmagnathus granulatus
... Regardless of the season, more but smaller eggs and larvae were produced in MC, while eggs and larvae from SA revealed higher dry mass and C/N ratios indicating higher lipid content. A latitudinal temperature gradient ...
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THE EFFECT OF DOSE PREGNANT MARE SERUM GONADOTROPIN (PMSG) HORMONE ON EGG DIAMETER AND EGG FECUNDITY OF Channa striata
... and egg yolk filling in the process of vitelogenesis which will have an impact on egg diameter and fecundity ...increase egg quality in this case is the diameter of the egg and the ...
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SIZE-FECUNDITY RELATIONSHIPS AND REPRODUCTIVE INVESTMENT IN FEMALE FROGS IN THE PANTANAL, SOUTH-WESTERN BRAZIL
... The size-fecundity relationships, reproductive investment, and correlation between ovary mass and fat body mass were investigated for females of an anuran assemblage in the Pantanal, ...body size was ...
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EVOLUTION OF EGG TARGET SIZE: AN ANALYSIS OF SELECTION ON CORRELATED CHARACTERS
... the size of the physical or chemical target for ...increasing egg size can reduce net zygote production due to an associated decline in ...target size is through addition of energetically ...
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The importance of male body size on sperm uptake and usage, and female fecundity in Aedes aegypti and Aedes albopictus
... body size in ...body size in ...ejaculate size [23, ...to fecundity [43, ...for egg development. While Ae. aegypti males also likely have size dependent ejaculate volume, the ...
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Sexual maturation in captive spiny lobsters, Jasus edwardsii, and the relationship of fecundity and larval quality with maternal size
... total egg loss may occur in captivity (MacDiarmid and Kittaka, 2000). If egg loss was the cause of the lower than expected phyllosoma number, it is interesting that it was large and occurred systematically ...
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Mountain Pine Beetle Fecundity and Offspring Size Differ Among Lodgepole Pine and Whitebark Pine Hosts
... more egg gallery in whitebark pine than in western white pine, and broods took significantly longer to emerge from whitebark as opposed to ponderosa pine (Pinus ...and size of progeny when crossing beetles ...
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Oocyte size, egg index, and body lipid content in relation to body size in the solitary bee Megachile rotundata
... low fecundity, but produce large eggs as part of their overall strategy of investing substantially in each ...the size of the mature eggs produced increases with female body ...oocyte size–body ...
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Social environment during egg laying. Changes in plasma hormones with no consequences for yolk hormones or fecundity in female Japanese quail, Coturnix japonica
... Several studies in birds have shown that breeding density, social instability, social motiva- tion and female-female competition is positively correlated with yolk androgen concentra- tions, yolk T in particular [17, 35, ...
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Effects of maternal age and size on embryonic energy reserves, developmental timing, and fecundity in quillback rockfish (Sebastes maliger)
... on egg and larval energy reserves, larval size and growth, and fecundity have been documented in several taxa of marine fishes, including rockfish (Sebastes ...or size of the fish, as is ...
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INHERITANCE OF EGG SIZE IN DROSOPHILA MELANOGASTER
... that the females showing the abrupt character receive both their second chromosomes from the abrupt (long) stock, their behavior should indicate whether the autosomal gene is i[r] ...
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Maternal effects of egg size on emu Dromaius novaehollandiae egg composition and hatchling phenotype
... of egg collection, the female breeding population at Cross Timbers Emu Ranch was 45 female birds ranging in age from 3–7 ...determine egg composition, and 53 eggs were incubated to obtain measurements of ...
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Do female Eastern Bluebirds trade-off egg size with clutch size?
... To support breeding Eastern Bluebirds, annually ~32 purpose-built nest boxes are installed in early March when pairs begin competing to claim a nest site. The boxes are set up in relatively consistent positions with ...
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DIRECT AND MATERNAL EFFECTS OF EGG-SIZE GENES ON HATCHABILITY
... From five years of data on four Leghorn lines selected up and down for body weight and for egg weight and from crosses between them, the decline in hatch- ability from selection for [r] ...
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Evolution of maternal egg size effects in sister salamander species
... body size effects of yolk removal since the smallest and weakest animals would be the most likely to die under heat ...effect size. The current results suggest that the effect of increased egg ...
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EFFECTS OF EGG SIZE AND HETEROZYGOSIS ON EMBRYONIC GROWTH AND HATCHING SPEED
... Line A, of intermediate egg size had the highest rate of embryonic development at 4 days; the large-egg lines and their crosses were lowest.. Differences in rate of embryonic [r] ...
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The role of fecundity and sexual selection in the evolution of size and sexual size dimorphism in New World and Old World voles (Rodentia: Arvicolinae)
... sexual size dimorphism ...and fecundity selection in creating sex diffrences in body ...body size to female body ...range size, with the latter being positively related to the level of ...
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Effect of parental age and associated size on fecundity, growth and survival in the yellow seahorse Hippocampus kuda
... Syngnathidae), are the only vertebrates in which embryonic development takes place within a specialised body compartment, the brood pouch, of the male instead of the female. Embryos develop in close association with the ...
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Heterozygote Advantage for Fecundity
... female fecundity in domesticated sheep and are not reliant on disease for their ...litter size per ewe lambing, relative to the ...litter size, and lambing rates, we have calculated the equilibrium ...
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