egg size
Geographic variation in life-history traits: growth season affects age structure, egg size and clutch size in Andrew’s toad (Bufo andrewsi)
... of egg size (1), clutch size (2), minimum age (3), maximum age (4), average age (5), lifetime activity (6), and adult body length (7) to length of the growth season for 17 Bufo andrewsi populations ...
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Maternal effects of egg size on emu Dromaius novaehollandiae egg composition and hatchling phenotype
... an egg by a female that the embryo uses for growth and maintenance are parental investment in embryogenesis, whereas energy and nutrients left as residual yolk or hatchling fat deposits comprise parental ...
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A consistent long-lasting pattern of spatial variation in egg size and shape in blue tits (Cyanistes caeruleus)
... considers egg shape (sphericity) as well as egg size ...Both egg volume and shape proved to be highly repeatable within clutches, which is typical of birds [24, ...30]. Egg indices of ...
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Geographic variation in life history traits : growth season affects age structure, egg size and clutch size in Andrew’s toad (Bufo andrewsi)
... of egg size (1), clutch size (2), minimum age (3), maximum age (4), average age (5), lifetime activity (6), and adult body length (7) to length of the growth season for 17 Bufo andrewsi populations ...
10
Sperm quality, egg size, fecundity and their relationships with fertilization rate of grass carp (Ctenopharyngodon idella)
... Also egg size (mm) and fecundity (egg/fish) were determined as ...same egg pool. The insemination dosage was 2x10 5 spz/egg for each fertilization ...p<0.01), egg size ...
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Effect of High and Low Stocking Density on Age of Maturity, Egg Production, Egg Size Distribution in White and Brown Layer Hens: A Meta-analysis
... One egg size category standard was used throughout this four-layer ...five egg size categories were used in these experiments. Grade-A egg had thick and reasonably firm albumin, high ...
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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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Egg size and reproductive adaptations among Arctic deep-sea copepods (Calanoida, Paraeuchaeta)
... as egg size, clutch size, and reproductive investment by females often suffers from inappropriate collection techniques because the long periods of time required to retrieve animals from depth, ...
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Evolution of maternal egg size effects in sister salamander species
... ABSTRACT Egg size varies genetically and with the maternal ...in egg size ...distinct egg and larval ...body size was only found in ...each egg, offspring coevolve an ...
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Egg Size, Eggshell Conductance and Incubation Temperature Influences on Maturity of Commercial Turkey Poults
... Egg size may affect the incubation requirements of an ...and size of the turkey egg may require a unique environment condition for optimum embryonic livability (Christensen and ...As ...
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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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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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Clutch size and Egg characteristics of Spotted Munia, Lonchurapunctulatain Jammu region, J&K India
... the egg size for large number of birds species [3],[4],[5][6] and ...[7]. Egg size varies with laying order, date of laying, and clutch size, [8], [9] and genetic, ontogenetic, and ...
5
Fertilization ecology of egg coats: physical versus chemical contributions to fertilization success of free spawned eggs
... body size, aggregation, synchrony, habitat location and population size and density (Pennington, 1985; Yund, 1990; Levitan, 1991; Denny et ...sperm size, morphology and energy storage in low-energy ...
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Use of portable ultrasonography as a nondestructive method for estimating reproductive effort in lizards
... clutch size, average egg size, and clutch volume that are reasonably accurate, and this level of accuracy holds over a range of species that vary in size, shape, and life ...in egg ...
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The adaptive capacity of thermal tolerance in chinook salmon
... body size, with offspring being largest when reared in the same acclimation temperature as their mother (Shama et ...through egg size. Adaptive phenotypic plasticity of egg size can ...
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Reproductive consequences of female size in haematophagous ectoparasites
... and size of their ...via size of the new imagoes and rate of their pre-imaginal ...imaginal size and development can be influenced by a number of events occurring during development from egg ...
9
Why do colder mothers produce larger eggs? An optimality approach
... offspring size variation under different temperature regimes (Angilletta, 2009), but such studies are not feasible for many organisms and so alternative approaches are ...offspring size–number trade-offs ...
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Variation in egg and clutch size of the Black Redstart (Phoenicurus ochruros) at the northeastern edge of the Qinghai-Tibetan Plateau
... between egg size and offspring fitness in ...between egg size and the fitness of offspring early in the chick- rearing period (Williams ...in egg size might be in determining the ...
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Factorial Analysis to Investigate the Effect of different Housing System, Incubators type and Bird Species on the Size of Egg
... the size of an egg; it examines which of the incubators, housing system and species of birds contribute most to the size of an egg; and derives model for obtaining the possible optimal ...
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