Diet quality affects egg size and number but does not reduce maternal antibody transmission in Japanese quail<i>Coturnix japonica</i>

Grindstaff, Jennifer L.; Demas, Gregory E.; Ketterson, Ellen D.

doi:10.1111/j.1365-2656.2005.01002.x

Cited by 56 publications

(65 citation statements)

References 46 publications

(73 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AICc ranking, delta values, likelihoods and weights and model r 2 for models of life-history effects on yolk IgY deposition. Analysis was done assuming a star phylogeny (OLS) and assuming stabilizing selection with drift (OU) using a tree compiled from the literature and presented in Cohen et al (2008 Grindstaff et al 2005) and comparable to estimates reported in Ficedula albicollis (0.63 mg ml 21 relative to chicken standard, Hargitai et al 2006). Several factors could contribute to the low levels measured in wild altricial birds.…”

Section: Discussionmentioning

confidence: 99%

Ecological and life-history factors influencing the evolution of maternal antibody allocation: a phylogenetic comparison

et al. 2009

View full text Add to dashboard Cite

Maternally derived yolk antibodies provide neonates with immune protection in early life at negligible cost to mothers. However, developmental effects on the neonate's future immunity are potentially costly and thus could limit yolk antibody deposition. The benefits to neonatal immunity must be balanced against costs, which may depend on neonate vulnerability to pathogens, developmental trajectories and the immunological strategies best suited to a species' pace of life. We measured yolk antibodies and life-history features of 23 species of small Neotropical birds and assessed the evidence for each of several hypotheses for life history and ecological effects on the evolution of yolk antibody levels. Developmental period and yolk antibodies are negatively related, which possibly reflect the importance of humoral immune priming through antigen exposure, and selection to avoid autoimmunity, in species with a slower pace of life. There is also a strong relationship between body size and yolk antibody concentration, suggesting that larger species are architecturally equipped to produce and transfer higher concentrations of antibodies. These results suggest that developmental effects of maternally derived antibodies, such as imprinting effects on B-cell diversity or autoimmune effects, are important and deserve more consideration in future research.

show abstract

Section: Discussionmentioning

confidence: 99%

Ecological and life-history factors influencing the evolution of maternal antibody allocation: a phylogenetic comparison

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Different lowercase letters reflect statistically significant differences. and containing more nutrients and antibodies that are essential for chick survival (Galbraith, 1988;Farooq et al, 2003;Grindstaff et al, 2005). High 'quality' females may invest more in reproduction and deposit more resources into their eggs if they are to increase offspring fitness (Pilz et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Condition-dependent strategies of eggshell pigmentation: an experimental study of Japanese quail (Coturnix coturnix japonica)

Duval

Cassey

Mikšı́k

et al. 2012

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARYA relationship has been suggested between eggshell colour and female body condition based on the opposing antioxidant properties of the two main eggshell pigments: the antioxidant biliverdin (blue-green) and the pro-oxidant protoporphyrin (brown). We hypothesized that experimentally food-restricted females with low antioxidant capacity would deposit more protoporphyrin and less biliverdin in their eggshells, resulting in eggshells of reduced brightness but increased colour intensity. Two eggs were collected at the beginning and two at the end of a 2week period from each of 24 female Japanese quails that were either food restricted or receiving ad libitum food (i.e. controls) during that time. Reflectance spectra were recorded and analysed using spectral shape descriptors, chromatic and achromatic contrasts were computed accounting for avian visual sensitivities, and eggshell pigments were quantified. We examined both spot and background pigmentation and found no significant effect of food restriction on eggshell reflectance. However, food-restricted females in lower body condition increased the deposition of protoporphyrin and decreased the amount of biliverdin invested in their eggshells. We hypothesize that in species laying brownspotted eggshells, females modulate eggshell pigment investment in response to their body condition. According to this hypothesis, we predict that females maintain eggshell colour to limit visible changes that could be detected by predators and thereby conceal their eggs, although this work has yet to be conducted. We suggest that further experimental work on egg camouflage under different environmental conditions will elaborate on the process of pigment deposition and the physiological costs to females of laying heavily pigmented eggshells.

show abstract

“…Total antibody levels in the quail plasma were determined by enzyme-linked immunosorbent assay (ELISA) following the protocol set out by Grindstaff et al (Grindstaff et al, 2005). Plates were coated with anti-chicken IgY (Sigma-Aldrich, cat.…”

Section: Antibody Assaymentioning

confidence: 99%

Growth and innate immunity are not limited by selection for high egg testosterone content in Japanese quail

Kankova

Zeman

Okuliarova

2012

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARYThe effects of maternal androgens on fitness-related traits of offspring are generally assumed to be epigenetic adaptations to the environment that may be encountered by the next generation. Possible constraints of high yolk androgen transfer are still not understood, although a suppressed immune response in offspring is frequently considered. The aim of our study was to examine the innate immune defence in high (HET) and low egg testosterone (LET) lines of Japanese quail, which differ in the hormonal milieu of their eggs, thus providing a good physiological model for the study of androgen-mediated maternal effects. Acute phase response was induced by a lipopolysaccharide injection in 12-day-old quail and plasma corticosterone and the heterophil:lymphocyte ratio were measured at 1 and 3h post-treatment. Basal levels of non-specific antibodies (IgY) were determined in the circulation. We found that HET quail were heavier than LET quail from the second week of age, indicating enhanced post-hatching growth. At 1h post-lipopolysaccharide challenge, plasma corticosterone concentrations increased in the HET but not in the LET line. The heterophil:lymphocyte ratio rose in both lines at 3h post-immune challenge, with a more pronounced response in HET quail. Moreover, HET chicks displayed higher IgY levels than LET chicks, suggesting either enhanced passive immunoprotection or stimulated endogenous antibody production. In conclusion, our data demonstrate that the genetic selection for high egg testosterone content positively influences growth and, simultaneously, does not limit the acute phase response in young quail.

show abstract

Diet quality affects egg size and number but does not reduce maternal antibody transmission in Japanese quailCoturnix japonica

Cited by 56 publications

References 46 publications

Ecological and life-history factors influencing the evolution of maternal antibody allocation: a phylogenetic comparison

Ecological and life-history factors influencing the evolution of maternal antibody allocation: a phylogenetic comparison

Condition-dependent strategies of eggshell pigmentation: an experimental study of Japanese quail (Coturnix coturnix japonica)

Growth and innate immunity are not limited by selection for high egg testosterone content in Japanese quail

Contact Info

Product

Resources

About