Eggs - Science topic

This paper examines the phonetics and phonology of lenition in Taiwanese Southern Min, focusing on intervocalic voicing as a crucial manifestation. To systematically explore the phonetic realizations of intervocalic voicing, recognized widely as a typical instantiation of lenition, an electroglottography (EGG) study was conducted. This study manipu...

Turmeric powder (TP) supplementation is a widely used strategy to enhance hens' productivity and potentially mitigate egg fat oxidation by increasing antioxidant activity. Therefore, this study aimed to investigate the impact of TP supplementation on egg quality, antioxidant activity, and yolk fatty acid profile. A total of 100 56-week-old Novogen...

Microwaves are an influential, reliable energy basis that may be adapted to several functions. Recognizing the fundamental technique following for microwaves will supply the chemical researchers with the right equipment and knowledge to be skilled to effectively apply microwave energy to any synthetic path. Microwaves represent an alternative sourc...

The painted sweetlips (Diagramma pictum), widely distributed in the Indo-West Pacific region, is an important species for fisheries, fish stocking, and the aquarium trade, and has potential for aquaculture development and stock enhancement. In aquaculture environments, light intensity, microalgae concentration in water, and the initial stocking den...

We aimed to address two common challenges for scientists working with observational data: ''how to quantify the relationship between two observed (or measured) variables'', and, ''how to account for censored values'' (i.e., observations or measures whose value is only known to fall within a range). Quantifying the relationship between observed vari...

Extensive research has been conducted to explore adaptive variation in offspring sex ratios, focusing on birds as a model group. However, studies to date have not been comprehensive in scope, limiting our understanding of whether there is substantial within‐ or among‐year variation in offspring sex ratios, which environmental conditions and mechani...

Uncovering the cognitive bases of egg rejection behavior in avian hosts of brood parasites carries significant comparative implications not only for our understanding of host–parasite coevolution but also for cross-species research aimed at assessing decision-making. In this study, we focused on the American robin (Turdus migratorius), a species th...

The invasive ascidian Ascidiella aspersa is known to be globally distributed (Muller, 1776) and characterized by its ultra-transparent embryos (Shito et al., 2021), which are ideal for studies of developmental biology and bioimaging. However, its use as a model organism has been limited due to the exceptionally low fertilization rate of dechorionat...

Vertebrate life histories evolve in response to selection imposed by abiotic and biotic environmental conditions while being limited by genetic, developmental, physiological, demographic and phylogenetic processes that constrain adaptation. Despite the well-recognized shifts in selective pressures accompanying transitions among environments, the co...

In China, the Asian corn borer (ACB), Ostrinia furnacalis (Guenee) (Lepidoptera: Pyralidae), is the most significant economic insect pest of corn, causing losses ranging from six to nine million tons annually by feeding on all parts of maize, including damaging ears and leaves and making tunnels in stems. In China, since the 1970s, the Trichogramma...

Insect predators can suppress prey populations through increased progeny production. The present study investigated the numerical responses of adult♀ Xylocoris flavipes (Reuter) (Hemiptera: Anthocoridae) on a diet of Liposcelis decolor (Pearman) (Psocodea: Liposcelididae). Adult♀ X. flavipes were placed in arenas containing nymphs, adult females, o...

Conspecific brood parasitism (CBP) is an alternative reproductive tactic in egg-laying species, where a female lays her eggs in the nest of a conspecific. In a population of spotless starlings (Sturnus unicolor), we observed that some eggs are ejected from the nest during CBP events. It is unclear whether this ejection is a parasitic strategy (a ho...

Vultures struggle to breed owing to increased exposure to toxic materials, reduced nesting sites and changing weather conditions. Breeding success determines the fate of bird populations; thus, understanding the determinants of breeding success is vital, especially for critically endangered species like Gyps species, whose populations have been dec...

This report describes the results of a study comparing current and historical streamflow conditions for four major streams within the Barnegat Bay-Little Egg Harbor watershed—North Branch (NB) Metedeconk River, Toms River, Cedar Creek, and Westecunk Creek. It presents a set of ecologically relevant streamflow metrics for these streams that dis...

The accurate quantification of food allergens is crucial for ensuring consumer safety and compliance with regulatory requirements. A proficiency test (PT) was organised to evaluate the performance of laboratories in quantifying total egg and total milk protein in cookies. The PT involved 20 laboratories, which reported results using mainly commerci...

Parasitoid wasps serve as natural enemies of numerous insect species; therefore, knowledge of host-parasitoid interactions is fundamental for understanding ecosystems. Each endoparasitoid wasp taxon exhibits a specific host range. Female parasitoids, however, occasionally oviposit into non-host species. Since the survival probability of eggs in non...

Dengue Hemorrhagic Fever (DHF) poses significant public health concerns in Indonesia, primarily transmitted through Aedes aegypti and Aedes albopictus mosquitoes. Between January-November 2024, 70 DHF cases (average 6/month) were reported at Puskesmas Juanda that indicates the necessity for targeted interventions, such as ovitrap usage, to control...

The gourami (Osphronemus goramy) fish is a freshwater fish commonly found in Asia and widely cultivated by fish farmers or local inhabitants. The survival rate of gourami fish from egg to larva and juvenile stages is very low, at approximately 50%. Several factors, such as unstable environmental conditions, poor water quality, and fungal growth on...

The Glossy Ibis Plegadis falcinellus (Linnaeus, 1766) nesting in the province of Venice (NE Italy): an analysis of data and trends for the period 1999-2024. The Glossy Ibis Plegadis falcinellus (Linnaeus, 1766) is one of the rarest colonial waterbirds nesting in the Veneto region. In 2024, four Glossy Ibis colonies were fund in the province of Ve...

There is conflicting information about the association between egg intake and metabolic health status and no previous information on this association was found in Middle Eastern populations. This research aimed to investigate the relationship between egg consumption and metabolic health status in Iranian adults, focusing on the potential involvemen...

The present study aimed to determine the inheritance and effect of dwarfism, which occurs naturally in the Nicobari chicken breed, on various growth and production traits. The dwarf character did not affect body weight for up to 4 weeks; but had a negative impact from 8 weeks onward, with body weight declining by 5.5%–9.0% in males and 9.0%–16% in...

This study reports the parasitism of Gonodonta fulvangula Geyer, 1832 by Lespesia archippivora (Riley, 1871) in Cerro Ancón, Panamá, representing a new host record. Two G. fulvangula larvae were observed infested with eggs from a tachinid fly, one of which was taken to the laboratory for further observation. The identification conclusively confirme...

THE detective story is a typical literary genre in Great Britain and the United Kingdom. It started in the 19th century when novels and books were published in small booklets that only gave one chapter of a long novel, one chapter every time the village distributor, often moving from one village to the next in time, hence coming to one particular v...

Bis(4-hydroxyphenyl) methane (BPF), as a bisphenolic compound, has toxic effects on organisms such as endocrine disruption and immobilization of growth and development. This study evaluated the effect concentrations of BPF on Chironomus tentans and investigated the impact of BPF exposure at various sub-lethal concentrations on the growth, developme...

The Sterile Insect Technique (SIT) is an eco-friendly control method that may prove effective against Bagrada hilaris , a pest native to India, Southeast Asia, and Middle and central Africa and reported as invasive in the southwestern USA, Hawaii, Mexico, South America, and two Mediterranean islands. This insect causes significant crop damage due t...

Geometric and mechanical analyses were performed on 82 selenium-rich eggs, which underwent hydrostatic testing as 2 raw eggs, 60 steamed eggs, and 20 emptied eggshells. By analyzing the geometric and mechanical properties of the egg, we can draw inspiration from its structural design to create a pressure shell capable of effectively withstanding th...

The reproduction and its associated behaviour in a non-seasonal species are considered totally independent of seasons. To assess this, we examined seasonal differences in the nest building and reproductive performance in diurnal zebra finches that were hatched and raised in outdoor aviaries. Adult male and female birds were separately housed in cag...

This study was aimed to investigate the effects of ozone (O3) treatment during incubation period (IP) on hatchability, hatch window, chick quality and organ growth, bacterial load of feces and first-week growth performance in broilers. A total of 240 hatching eggs were weighed and randomly divided into control group (O3-IP (-)) and O3 treatment (O3...

To detect the effects of water quality factors on the hatching of Rapana venosa eggs, the eggs were exposed to controlled conditions with different concentrations of ammonia nitrogen and nitrite and different pH values respectively, for 60 days. The hatching rate, larval release time, and initial larvae sizes after hatching were documented and anal...

The polycystic ovary syndrome (PCOS) is a multifaced disease of the reproductive age associated with several comorbidities including infertility. Very few documents regarding the management of the infertility in women with PCOS, including guidelines, position papers and consensus conferences, are available in the literature. The Italian Law indicat...

Ewes’ genotype and physiological stage are important factors associated with gastrointestinal nematode infection. The aims were to evaluate the parasitic (fecal eggs count, FEC), health (anemia level, FAMACHA; packed cell volume, PCV; hemoglobin, HGB), and productive response (live weight, LW; body condition score, BCS) of hair ewes managed under a...

Documenting how growth strategies diverge among populations or species occupying different geographical locations can contribute to understanding life-history evolution. However, the existing literature on the geography of growth focuses on latitudinal gradients, leaving the growth−elevation relationship enigmatic. The knowledge gap limits our abil...

Insect parasitoids are the important group of natural population mainly kill their hosts by depositing eggs followed by the growth of offspring (Reproductive mortality) and by direct feeding (Host feeding). However, parasitoids can also have negative affect on their hosts (Nonreproductive effects) such as non consumptive effect, pseudo parasitism,...

The extensive production of chicken eggshell (ES) waste in the egg industry and kitchens necessitates finding sustainable solutions. ES is known for its high amount of calcium. While previous studies have explored the physicochemical and sensorial attributes of ES addition in gluten-containing foods like muffins, white bread, and bread strips, to t...

Eosinophilic esophagitis (EoE) is a chronic, antigen-mediated disease characterized by eosinophilic inflammation of the esophagus. Common triggers in Europe include cow's milk, hen's egg, wheat, soy, (pea)nuts, and (shell)fish. Recent studies indicate that heated forms of cow's milk in cow's milk-induced EoE may be well tolerated. Similar to cow's...

Local populations of rare and declining species assume particular interest for their conservation value, as models for studying the dynamics of vulnerable populations and for insights into the successful maintenance of populations at risk. The Harris’ checkerspot Chlosyne harrisii (Nymphalidae) is a small orange and black butterfly whose population...

Chia seeds have emerged as a promising natural substitute for eggs in various baked products due to their unique gelling properties and ability to bind ingredients. Their gelling abilities closely mimic the moisture-retention functions of eggs in baked goods. The growing interest in plant-based alternatives creates a larger market for more sustaina...

Laying hens’ metabolism goes through a cyclic process to produce eggs, which requires higher dietary protein and energy in the morning (AM) and higher calcium (Ca) in the afternoon/evening (PM) than the rest of the day. Therefore, poultry scientists are trying to adopt a new feeding strategy called AM/PM or split feeding to precisely meet hen’s req...

Zusammenfassung Das prophylaktische Einfrieren von Eizellen ist in Österreich im Gegensatz zu vielen anderen Ländern nur bei medizinischen Indikationen erlaubt. Eine Zulassung und die damit verbundene Verschiebung der Fertilität ins höhere Lebensalter würde grundsätzlich die Gleichberechtigung von Frauen gegenüber Männern fördern. Die Weiterentwick...

Rapa Island, located in Eastern Polynesia, hosts 12 species of breeding seabirds, now primarily found on its ten peripheral islets. These seabirds face various threats, such as invasive mammals that prey on eggs and chicks, as well as invasive plants that encroach upon and degrade their breeding habitats. Major island restoration projects are curre...

What kind of life is considered reproducible in a fertility clinic? What is the specific understanding of technology and progress and what does this have to do with the desirability of certain bodies? What does egg donation have to do with selection? These are the guiding questions of this article, in which I explore the idea of the ‘healthy’ baby...

We describe the discovery of the 11th specimen of Trimerodytes premaxillaris and use this opportunity to make some clarifying remarks about the history of the species, its type locality, morphology, and natural history. The snake was found at the southernmost locality for the species and represents a new provincial record for Laos. It was in the pr...

A label-free surface-enhanced Raman scattering (SERS) sensor using optimal bimetallic Au@Ag nanocuboids (Au@Ag NCs) was developed for ultrasensitive detection of florfenicol residue in eggs. The Raman characteristic peaks of florfenicol detection were identified at 1145 cm⁻¹ and 1595 cm⁻¹ which were consistent with the theoretical Raman spectrum of...

FEC and Imuune genetic parameters study in R and S line Male animals of Malpura sheep

Affordable food accessible to the community is an essential need, especially for people who live in areas with relatively low minimum wages, such as the province of Yogyakarta. This study examines consumer decisions regarding egg purchasing in the Special Region of Yogyakarta Province. Primary data from 100 respondents spread across Kulon Progo, Sl...

Biosecurity measures in poultry farms are essential for maintaining animal health and welfare. Developing and implementing daily biosecurity protocols on farms reduce the entry of pathogenic microorganisms which can have direct impacts on the production processes. One of the most challenging zoonotic diseases to control in poultry flocks is salmone...

Egg-carrying ectothermic planktonic organisms in stressed conditions adapt diverse reproductive trade-off strategies, which are denoted by markers of stress, either in their physiology, morphology or reproductive characteristics. This is the first study documenting the fact that egg packing constraints can provide a novel marker of stress through e...

T. Petrov, I. Gaydarova & H. Lukanov, 2025. Incubation characteristics of eggs from common quail (Coturnix coturnix). Bulg. J. Vet. Med. (online first). The aim of the study was to investigate the main incubation characteristics of common quail (Coturnix coturnix) eggs, laid from industrially raised parental flocks. A total of 360 hatching eggs obt...

This study aimed to map the resting eggs’ distribution in seasonal pools of a semiarid region to understand the temporal dynamics and mechanisms of zooplankton communities that vanish and reappear annually. We tested the following hypotheses: (H1) Abundance is greater in deeper sections; (H2) α-diversity is greater in deeper sections; (H3) Abundanc...

In the context of space exploration, spacecraft are frequently subjected to hypervelocity impact from space debris, which can result in significant damage. To avoid or mitigate the impact damage caused by space debris, the deployment of Whipple shields in front of bulkheads has been identified as a highly effective protective strategy. This paper p...

Observers using field glasses, not shotguns, made pioneering contributions to regional ornithology in the 20th century, but their lives and influence have received little attention in Queensland. James Andrew Leslie ('Jim') Bravery, a young coal miner from southeast Queensland, was interested in birds and conservation by age 14, although he never c...

The persistence of populations facing severe environmental disturbance can be enabled by natural selection on heritable phenotypic variation - a process known as evolutionary rescue. Examples of evolutionary rescue have been documented in wild populations. Still, few studies have investigated the combination of factors (demographic, genetic, and en...

Poultry is one of the fastest growing investments of the agricultural economy in Nigeria. This study estimated the cost benefit analysis of egg production and comparative evaluation of various breeds of birds reared by rural dwellers in Imo State, Nigeria, from 2015 to 2022.The objective was to examine the socio-economic status, estimate the costs...

This study evaluated the effects of dietary propolis extract supplementation and in-ovo propolis injection on the immune status, blood parameters, vaccine-antibody response, and intestinal microflora of broiler chickens. A total of 600 Ross 308 broiler chicks were used. Breeder diets were supplemented with 400 ppm propolis extract (P) or left unsup...

Abstract Understanding how organisms respond to thermal stressors over short- and long-term timescales is essential for assessing and predicting their resilience and vulnerability to environmental changes and climate fluctuations. Here, using a biparental-care burying beetle (Nicrophorus vespilloides), we tested whether and how parental investment...

Background We examined how two invasive mosquito species, Asian tiger mosquitoes, Aedes albopictus , and Asian rock pool mosquitoes, A. japonicus , responded to the presence of duckweeds when ovipositing and how these plants affected Aedes larval survivorship found. Since duckweeds have been shown to increase egg-laying but kill mosquito larvae in...

This study examines the effects of temperature on the hatching rates of Lucilia sericata, a species important for forensic entomology and medical biology. Using a polynomial regression approach, we investigated the relationship between extreme thermal conditions and egg emergence rates to provide insights that could enhance applications in postmort...

Climate change is expected to significantly alter the distribution of fish organisms, particularly within vulnerable ecosystems like transitional water bodies. The anticipated rise in sea levels and extreme rainfall events could trigger coastal habitat salinisation or freshwater dilution, posing potential threats to resident species of European Com...

Groin hernia is a very widespread disease that poses a real public health challenge. Given that hernia surgery remains one of the most commonly performed operative procedures worldwide, improving results appears to be a real challenge. In the captivating history of herniology and alongside the development of surgical techniques, the reduction of an...

Larva represents the initial phase of a fish's life after hatching from the egg. Studies on fish larvae aim to provide seasonal information, as well as identify spawning and nursery areas, especially economically important fish species, to support the sustainability of fishery resources. This study aimed to gather information on the abundance, dive...

Micro and small organisms (MSOs) are essential components of the ecosystem. Many MSOs reproduce by hatching eggs, making it crucial to study the morphology of these eggs and their incubation products (IPs) in related research. Phase-contrast CT (PCCT) is a powerful imaging modality known for its high resolution and sensitivity to soft tissues. In t...

Background: The laying hen industry aims to extend production for the economic and environmental benefits it offers, while at the same time facing the challenges of declining egg production and quality in aging hens. To explore trait persistence, we studied 998 Rhode Island Red purebred hens from the Novogen nucleus. We recorded daily egg productio...

Arbovirus control strategies often target vector reproductive dynamics, with insect-specific viruses (ISVs) like Culex Y virus (CYV) offering potential as eco-friendly approaches by influencing mosquito reproduction without affecting humans or animals. This study investigated the interplay between autogeny, anautogeny, nutrient availability, and vi...

The Insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) gene is closely associated with the diseases, fat deposition, and growth and reproduction traits in animals. Investigations into the relationship between the IGF2BP2 gene polymorphism and growth and reproduction traits provide valuable breeding information for enhancing productivity...

In ovo feeding is an in ovo technique of providing essential nutrients into the egg itself. It can play a crucial role in early development and nutrient utilization by birds. It leads to rapid growth rate, improved feed conversion efficiency, early attainment of marketable bodyweight, rapid development of gut, improved immunity and maximizing other...

Article History: By 2030, to end all forms of malnutrition, targeting stunting and wasting in children under 5 years of age is one of the targets from Goal Number 2 in the SDGs. In Indonesia, one of the provinces with the highest stunting rate is East Nusa Tenggara, with a rate of 35.3%. One affordable source of protein and nutrition used as a solu...

This study was conducted to evaluate the effect of breed, pre-incubation storage days and their interaction on hatching parameters of Arbor acre and Ross breeder hens. A total number of 1200 eggs were collected in three (3) batches and stored for 4 days, 7 days and 10 days before incubation. The experiment was designed as a completely randomized de...

In this study, the effects of feather cover and feather colour genotypes and their interactions on the fertility, hatchability, external and internal egg qualities of 24-week-old locally developed layer parent lines were assessed. A 2 x 3 factorial experiment laid out in a randomized complete block design of two feather colour variants (brown and w...

The Maleo bird (Macrocephalon maleo) is a native to Sulawesi Island of Indonesia, where there is currently a downward trend in numbers owing to habitat loss, predation, and poaching of their eggs. A viable option for overcoming the population decline is conserving the species, as controlling its egg hatching. This research examined the methodologic...

Hoplocampa testudinea, the European Apple Sawfly, is an important pest in apple throughout Canada. Losses can be up to 80% in some areas. Adults of H. testudinea are active during the bloom period and larvae are contained with the developing fruitlet, creating a challenging management situation. Chemical treatments applied either pre- or post-bloom...

Background:Green synthesised Hafnium oxide nanoparticles can be prepared for various other applications to address oral health concerns like bacterial infections and inflammation.The current study explored the anti-inflammatory and antioxidant activity of the synthesized Hafnium Oxide Nanoparticles. Materials and Methods: Hafnium Oxide nanoparticle...

Computer science uses AI to create intelligent machines that can do human activities. For bird comfort, AI and sensors help to monitor and improve poultry ventilation. It can measure poultry housing microclimate, behaviour, health, and mobility. The AI system can quickly find issues and improve performance by analyzing this data. Besides removing d...

Introduction: Dengue is currently the most widespread vector-borne disease, and its transmission has been intensively studied in endemic/hyperendemic localities. However, to obtain a complete picture of dengue transmission, it is necessary to study nonendemic localities. Imported dengue cases have been reported in Mexico City, and the presence of e...

Background To achieve maximum production in laying hens, calcium (Ca) and phosphorus (P) are two important minerals in the diet. Nutritional solutions such as adding coarser Ca particles in the afternoon or considering the light hours during the night to feed the birds might improve the eggshell quality and reduce Ca mobilization from the bone. Ob...

Se registra por primera vez para México la avispa parasitoide Philolema latrodecti (Fullaway, 1953) (Hymenoptera: Eurytomidae), parasitando un saco de huevos de la araña viuda Latrodectus mactans (Fabricius, 1775) (Araneae: Theridiidae).

Heat-induced gelation of egg proteins, influenced by factors such as temperature and time, affects texture. This study compares three cooking methods—hard-boiling, sous vide, and periodic cooking—using rheological measurements to investigate the sol–gel transition and texture development in both egg phases. The goal is to understand how thermal his...

The present study was conducted to assess the biology and stock status of Nemipterus japonicus along the Cuddalore coast of Tamil Nadu. N. japonicus was one of the dominant species landed throughout the year in this region. Key biological findings revealed that the species exhibits negative allometric growth, with the length at first maturity calcu...

This study investigated the effects of feeding live black soldier fly larvae (Hermetia illucens, LBSFL) as a substitute for soybean meal (SBM) and oil (SO) on laying performance and egg quality parameters of free-range laying hens. A total of 144 18-week-old hens (Lohmann Brown) were allocated equally (4 pens/treatment, 18 hens/pen) to two dietary...

The wetlands of Uttar Pradesh are resourceful station for water birds during migratory and breeding season, their biogeographic distribution is significant in the ecosystem of the area. The eastern zone of Uttar Pradesh (U.P.) is gifted with natural wetlands and nearby increase in industrialization and anthropogenic activities, had raised the conta...

The effect of nanostructured zeolite on embryonic and early postnatal development of Peking ducks cross ‘STAR-53 medium’ was investigated. The surface of hatching eggs was treated with a suspension of nanostructured zeolite with a particle size of 60-120 nm to evaluate its effect on increasing the productivity of ducks. It was found by electron mic...

Background Urogenital schistosomiasis is endemic in Togo. Since 2010, Togo has used preventive chemotherapy to control the disease and periodically assess its impact. This study aimed to estimate the prevalence of urogenital schistosomiasis and identify associated risk factors among school-age children in three districts of the Plateaux Region of T...

The habitats of many species are distributed unevenly and heterogeneously across geographic space and suitable habitats may form isolated “habitat islands” surrounded by hostile environment. We studied Kentish plovers Anarhynchus alexandrinus (formerly Charadrius alexandrinus) occurring in a wetland connected to the Chott Ain El Beida, an ephemeral...

The first fossil eggshell from the Cenomanian-age Mussentuchit Member of the Cedar Mountain Formation was described over fifty years ago. In the half-century since, oodiversity of this rock unit has been limited to a single, taxonomically unstable ootaxon, currently formulated as Macroelongatoolithus carlylei. Recently, there has been a renewed eff...

The Bangka Belitung Islands consist of two main islands, namely Bangka Island and Belitung Island, which have abundant marine natural resource potential. One of the typical products of the seafood is Kericu, which is a snack made from squid eggs and sago. Kericu has become a special souvenir that is in demand and has become a home-based business op...