Eggs - Science topic

Aim: To explore the tolerance march in children and identify potential factors that affect the prognosis of egg allergy (EA). Methods: Two hundred children(age range, 6 months-2.5 years)with atopic dermatitis (AD) were recruited from 2018 to 2019. EA was diagnosed based on medical history, skin prick test (SPT), and the oral food challenge (OFC) te...

Quail farms (Coturnix sp.) are inseparable from the antibiotic uses, breeders who use antibiotics without observing the appropriate rules could cause residues in the tissues and organs of animals, including in eggs. Consumption of quail eggs containing by antibiotic residues could have a negative impact on health. Quail eggs consumed by the public...

The use of pesticides has grown over the years and their effects on ecosystems, especially aquatic ones, have been increasingly observed. Agricultural pesticides are responsible for a large part of pollution in aquatic environments, and can reach non-target organisms, harming biodiversity. In this research, the effects of common pesticides on morta...

RNA interference (RNAi) is one of the most widely used techniques to study gene functions. There is still a lack of RNAi techniques that can be applied in Phytoseiidae conveniently and efficiently. Star Polycation is a new nanomaterial commonly used as a carrier of dsRNA in RNAi. Five genes of P. persimilis (PpATPb, PpATPd, PpRpL11, PpRpS2, and Ppt...

Corruption and inflation are two economic problems with serious social consequences. This paper analyzes the link between these two problems, focusing on the case of 19 prices observed for agricultural products in 90 countries since 2000. Using ‘panel data cointegration’ techniques, we conclude that, in most cases, there is a long-term relationship...

The temperature dependent development rates of blow flies allow blow flies to be used as biological clocks in forensic death investigations. However, the upper thermal limits of adult survival and oviposition, both required for producing larvae, remains largely unknown. Therefore, in this study we examined the impact of a range of temperatures betw...

Curculio glandium females associated with the pedunculate oak were investigated in order to fill the knowledge gap on acorn structure preferences and shell-hardening influence on ovipositional behavior and fecundity. Shell solidification progression of weekly harvested acorns was measured using penetration and force–deformation tests along with fru...

Language comprehenders activate mental representations of sensorimotor experiences related to the content of utterances they process. However, it is still unclear whether these sensorimotor simulations are driven by associations with words or by a more complex process of meaning composition into larger linguistic expressions, such as sentences. In...

The reproductive success of birds depends on many factors, including nest construction and placement. In the mountainous regions of southwestern Iran, broods of Eastern Rock Nuthatch Sitta tephronota were surveyed in 2016 and 2017. During the study, 11 broods in rocky cavities and 16 in abandoned Syrian woodpeckers’ Dendrocopos syriacus tree caviti...

Domestic chicken (Gallus domesticus) is one type of poultry that has experienced domestication and is spread throughout the archipelago. Chicken consumed by humans should be in a healthy condition and free from various types of parasites. Information about Domestic chicken infected with parasites is needed to maintain animal health and prevent the...

This study presents the application of IoT technology for temperature and humidity monitoring on hatching native chicken eggs in an electric incubator to reduce the damage to the egg. The test group was divided into a non-tracking electric incubator (T1) and a tracking electric incubator (T2) while holding the 120 eggs/ group. The data was collecte...

The cause of double-yolk (DY) egg production in birds is unclear, but it is related to body weight and adiposity. We explored the causes of the high proportion (up to 26%) of DY eggs in the first clutch of Zhedong white geese. We recorded the egg production of Zhedong white geese during the first egg-laying cycle and counted the proportion of DY eg...

The oriental stick insect Paragongylopus Chen & He, 1997 is a small and poorly known genus, including 9 taxa distributed in China, Thailand and Vietnam. The male and egg of most species in this genus are still unknown. In this paper, two subgen-era are redefined with three new combinations: P. (Planoparagongylopus) brevicornis (Ho, 2019) comb. nov....

Host records and nesting behavior of the Nearctic trapdoor spider-hunting spider wasps (Hymenoptera: Pompilidae) Calopompilus Ashmead and Priocnemissus Haupt (Pepsinae: Pepsini) and Aporus Spinola and Psorthaspis Banks (Pompilinae: Aporini) are reviewed, investigated, compared, and discussed. First time incidental trapdoor spider host records for P...

The Arabian carpet shark, Chiloscyllium arabicum is endemic to the Arabian Gulf and the northern Arabian Sea. The aim of this work is to study the reproduction and maturity of this species. A total of 87 males and 139 females, including 19 egg-bearing individuals collected from bottom set longline fisheries in the Saudi Arabian waters of the Arabia...

El presente estudio tuvo como objetivo determinar las dimensiones morfológicas de paramfistomidos adultos recolectados en el Centro de Beneficio Municipal de Chachapoyas, Amazonas, Perú. Las muestras fueron tomadas en setiembre de 2017. Se seleccionaron 40 parásitos adultos de tamaño uniforme a los cuales se les sometió a ovoposición usando las téc...

The life cycles and biodiversity of Pacific coast gastropods were analyzed by videomicroscopy and DNA barcoding of individuals collected from tide pools and in plankton nets from a variety of shore stations. In many species (Families Calyptraeidae, Cerithiopsidae, Strombidae, Vermetidae, Columbellidae, Nassariidae, Olivellidae, Hermaeidae, Onchidor...

The site-specific modification of an existing gene is known as gene editing. A section of DNA must be cut with an endonuclease (such as the CRISPR-Cas9 system) before the two severed ends are brought together, frequently with a new or improved sequence inserted between them. Somatic cell gene editing can be helpful in a variety of clinical contexts...

As an individual grows older, its bodily functions deteriorate. This phenomenon is known as senescence. Across the tree of life, the rate of senescence varies tremendously. A fruit fly finishes its life cycle within a few weeks, while an elephant can live for several decades. Intriguingly, differences in longevity exist not only among different spe...

Objective: The aim was to estimate the association of egg consumption with dyslipidemia and its subtypes in Chinese adults. Methods: The cross-sectional health survey was conducted in Hanzhong city of Shaanxi province in 2010.Consumption of eggs (alone and mixed in foods) and nutrients were assessed using a semi-quantitative 81-item food frequen...

The objective of this study was to monitor the impact of different ambient temperatures on egg-laying and hatching parameters in Japanese quail. Sixteen weeks old male (n=10) and female (n=50) Japanese quail were assigned to 10 cages as 1 male and 5 females. Quails were housed in a poultry yard belonging to the Faculty of Agriculture. Quails were r...

Abstract—Data on the habitats, their seasonal changes, and the life cycle of Mesovelia egorovi Kanyukova, 1981 from the coastal tidal zone in the south of Primorskii Territory are reported. Development of one generation from overwintered eggs was observed during the summer of 2021. Nymphal development took about 5 weeks, and the adults were observe...

The global poultry industry culls approximately seven billion day-old male layer chicks annually. Superfluous to both egg and meat, male ‘brother’ layers constitute a momentous problem, simultaneously economical and ethical, to the poultry industry. In this article, we scrutinize present and proposed alternatives to routine killing involving multip...

Estimation of fundamental frequency (F0) in voiced segments of speech signals, also known as pitch tracking, plays a crucial role in pitch synchronous speech analysis, speech synthesis, and speech manipulation. In this paper, we capitalize on the high time and frequency resolution of the pseudo Wigner-Ville distribution (PWVD) and propose a new PWV...

The reproductive period in animals is a demanding part in their life history. In birds, environmental factors, such as adverse weather, predation, or brood parasitism; and/or anthropogenic disturbance, can limit breeding success, resulting in failure of clutches. The nest loss in open-cup nesting passerines is usually replaced with a new nest with...

The trial was conducted to evaluating the effect of different hormone concentrations of 17α-methyltestosterone @ (HC): (200, 400, 600, and 800 μg/L⁻¹), immersion times (IT): 48, 60 and 72 h and the interaction effect of (HC × IT) on the hatching percentage of Cyprinus carpio egg, percent survival and percent of males. Results indicated that surviva...

In a variety of species, individuals appear to be consistent in the daily timing of their activity onset. Such consistent among-individual differences can result from both intrinsic factors, as individuals may e.g. differ genetically, and extrinsic factors, as the environment may vary on spatial and temporal scales. However, previous studies typica...

Poultry eggs contain high-quality proteins, fat, vitamins, and minerals necessary for human nutrition as food and ingredients in the food industry. Egg whites have exceptional foaming, emulsifying, gelling, and heat setting properties, making them popular for use in baked goods. Intensive study of egg whites to date has now settled on a stable opin...

Objective To explore the association between egg intake and cardiometabolic factors (CMFs) in Chinese adults. Method The subjects were 6,182 adults aged 18–64 who had complete survey data and had no CMFs at baseline. Egg intake was assessed with 3 days−24 h dietary recalls in all waves of the China Health and Nutrition Survey (CHNS). Multivariate...

Nonhomologous end joining (NHEJ) is the primary pathway of vertebrate DNA double-strand-break repair. NHEJ polymerases and nucleases can modify DNA ends to render them compatible for ligation, but these enzymes are usually deployed only when necessary for repair of damaged DNA ends, thereby minimizing mutagenesis. Using frog egg extracts, we reveal...

Here we report the first dinosaur eggshells found in the Nanhu Gebi of Hami, including Elongatoolithus elongatus and Ovaloolithus oosp. The discovery of these dinosaur eggs not only enlarge the palaeogeographic distribution of elongtaoolithid and ovaloolithid eggs, but also indicate the geological age of egg-bearing strata to be the end of Late Cre...

This study was conducted to determine the effect of different levels of organic copper (organic Cu) sup�plementation on performance, egg quality, serum parameters and incubation characteristics in Japanese quail diets. 120 Japanese breeder quails of 7 weeks old were used in the study and lasted 84 days. Four diets containing different levels of org...

The breeding biology of White-throated Kingfisher Halcyon smyrnensis was studied in plains and hilly areas from September 2008 to August 2011. Four villages under Savar upazilla were selected for plains, and Chittagong University Campus, Chattagram for the hilly area. The breeding season started in February in hills and April on plain. Mean (SD) ti...

There is limited information on the resistance to acaricidal drugs of the cattle tick Rhipicephalus microplus in the Lower Amazon region. Thus, we aimed to determine the efficiency of three widely used acaricide products (Amitraz, Cypermethrin, and Deltamethrin) in the control of this tick species.. The adult immersion test was used on engorged fem...

Naleh (Barbonymus sp.) is one species of native fish found in Aceh Waters. This study aims to examine the growth patterns and reproductive aspects ofthe fish in Krueng Lanca of Nagan Raya, Aceh Province. The study was conducted for five months (January - May 2022). Sampling was carried outpurposively, once in a month, on five different stations usi...

Current understanding of sea turtle nesting, hatching, and emergence events has been largely limited to observable events on the surface of the sand, though recent approaches using audio or visual equipment have allowed scientists to better understand some underground nest phenomena. We used a technology-based approach to define motion-related Care...

This study evaluated parasitism rates by Hadronotus pennsylvanicus (Ashmead) (Hymenoptera: Scelionidae) on the squash bug Anasa tristis DeGeer (Hemiptera: Coreidae) over a six-year period in squash fields in Maryland. From 2016–2021, 2226 wild squash bug egg masses were collected, 2180 (98.0%) A. tristis egg masses and 46 (2.0%) A. armigera egg mas...

Penelitian ini bertujuan untuk mengetahui mengenai saluran pemasaran, margin pemasaran dan efisiensi pemasaran telur ayam di Kecamatan Randangan. Penelitian ini dilaksanakan pada bulan Juni sampai September 2022. Teknik penarikan sampel pada penelitian ini menggunakan teknik sampel acak stratifikasi (Stratified Random Sampling). Sampel acak stratif...

Poultry eggs contain high-quality proteins, fat, vitamins, and minerals necessary for human nutrition as food and ingredients in the food industry. Egg whites have exceptional foaming, emulsifying, gelling, and heat setting properties, making them popular for use in baked goods. Intensive study of egg whites to date has now settled on a stable opin...

In this paper, we propose a method for removing linguistic information from speech for the purpose of isolating paralinguistic indicators of affect. The immediate utility of this method lies in clinical tests of sensitivity to vocal affect that are not confounded by language, which is impaired in a variety of clinical populations. The method is bas...

Although some studies have identified parasites in green turtles (Chelonia mydas), little is known about the morphology of helminth eggs in the feces of these animals. The aim of this study was to morphologically characterize helminth eggs recovered in coproparasitological exams by sedimentation and to analyze their relationship with helminth speci...

The spindle is a dynamic intracellular structure self-organized from microtubules and microtubule-associated proteins. The spindle’s bipolar morphology is essential for the faithful segregation of chromosomes during cell division, and it is robustly maintained by multifaceted mechanisms. However, abnormally shaped spindles, such as multipolar spind...

The effect of salted duck egg white powder (SDEWP) as a source of salt at different salt equivalent (SE) levels (0–2.5% SE) on gel qualities and texture properties of threadfin bream surimi was investigated. SDEWP possessed a high protein (64.59%) and salt (34.86%) concentration. The breaking force of surimi gel increased by the amount of SDEWP (p...

This study aims to study the productivity and quality of Isa Brown chicken eggs given tuna fish oil in the ration. The design used was a completely randomized design (CRD) with 200 chickens with 4 treatments and 5 replications and each replication consisted of 10 chickens. P0 : Ration without the use of fish oil, P1 : Ration with the use of 0.25 %...

Amphibian species are declining worldwide, with a negative trend affecting both rare and widespread species. There is increasing evidence that resources must be allocated not only toward the monitoring of rare and charismatic species ; however, the attention toward abundant species has often been minimal. Here, we describe the strong reduction in t...

Recently, α-ketoglutaric acid (AKG) has gained importance as an antioxidant. Its dietary supplementation in animals and humans has proved beneficial. Moreover, an extensive group of studies on in ovo feeding has proved that it produces better day-old chicks and overall performance. Combining the two, we hypothesized that in ovo feeding of AKG could...

We measured and compared the reproductive traits of the Mediterranean stripe-necked turtles Mauremys leprosa living in highly degraded–polluted vs. intact natural habitats in Algeria. Data on reproduction were obtained by using X-ray examination of gravid females and examination of nests. The results were opposite to the negative trend confirmed in...

The pullet phase is an important stage in the development of laying hens when the development of organs, including reproductive organs and bones, is rapid. However, in recent years, few studies have focused on this crucial stage. The purpose of this study was to evaluate the effect of a dietary crude protein (CP) regimen during the rearing period (...

Ducks have lower hatchability rate than other poultry species, ranging about 65-82%, and duck egg hatching is more difficult than chicken egg hatching. The present study aimed to evaluate the effect of spraying incubating duck's eggs with the olive oil, ethanol alcohol and distilled water on embryonic mortality and hatchability rates. Eight hundred...

The present research aimed to evaluate the shrimp waste meal (SWM) in the diet of European quails in the production phase. Firstly, a metabolism trial was carried out with 96 quails of 28 days of age distributed in an completely randomized design (CRD) with three treatments (reference diet and two test diets in which SWM replaced 20% and 40% of the...

The Hooded Gnateater Conopophaga roberti Hellmayr, 1905 is an insectivorous understory passeriform with discrete behavior, whose reproductive attributes are poorly-known. In the present study, we describe the reproductive biology of the species and the growth pattern of the nestlings, based on observations conducted in remnants of the Cerrado savan...

Penelitian ini dilakukan untuk mengetahui pengaruh penambahan calcidifier dan probiotik terhadap performa produksi itik petelur Mojosari. Materi yang digunakan dalam penelitian ini adalah 100 ekor itik Mojosari fase layer (7-8 bulan), calcidifier dan probiotik. Metode yang digunakan dalam percobaan adalah Rancangan Acak Lengkap dengan 5 perlakuan d...

During cell division, the genome of each eukaryotic cell is copied by thousands of replisomes - large protein complexes consisting of several dozen proteins. Recent studies suggest that the eukaryotic replisome is much more dynamic than previously thought. To directly visualize replisome dynamics in a physiological context, we recently developed a...

Admixture estimation plays a crucial role in ancestry inference and genomewide association studies (GWAS). Computer programs such as ADMIXTURE and STRUCTURE are commonly employed to estimate the admixture proportions of sample individuals. However, these programs can be overwhelmed by the computational burdens imposed by the 10^5 to 10^6 samples an...

The transition of people from the nomadic life to the settled social life from the past to the present has also affected and further developed the relations of people in the settled life with animals. As people move from individual life to social life, they also experience some social and economic changes. These changes often affect behaviour patte...

Objective The goal of this study was to identify autonomic and gastric myoelectric biomarkers from throughout the day that differentiate patients with gastroparesis, diabetics without gastroparesis, and healthy controls, while providing insight into etiology. Methods We collected 19 24-hour recordings of electrocardiogram (ECG) and electrogastrogr...

Salmonella spp. is one of the major causes of the world's foodborne disease that can spread through meats, eggs, or milk. Salmonella spp. is an enteropathogenic bacteria that can cause gastrointestinal infections. This study aimed to identify the contaminations of Salmonella spp. bacteria on the broiler meats at Banyuwangi and Blambangan traditiona...

This study aimed to examine the effect of time differences on motility, viability, abnormality, and intact plasma membrane of spermatozoa of Sapera goats before freezing. This study used a Completely Randomized Design (CRD) with three settings, namely the equilibration time P1 (1 h), P2 (3 h), and P3 (4 h), each of six replications. The results of...

Table egg production projects are important development projects with rapid economic returns that contribute to reducing the need for Iraq to import foodstuffs. These projects aim to achieve the minimum level of food security, especially those with limited resources. The aim of the research is to estimate the function of table egg production in Ira...

Purpose Different populations may exhibit differences in dietary intakes, which may result in heterogeneities in diet–disease associations. We compared intakes of major food groups overall, by sex, and by socio-economic status (SES) (defined as both education and income), between participants in the China Kadoorie Biobank (CKB) and the UK Biobank (...

Background: The fourth round of National Family Health Survey (2015–2016) measured blood pressure for the first time and provided a unique opportunity of exploring trends in hypertension prevalence across states and districts for the first time. Aim: This study will be the first in India to estimate the geospatial variation of hypertension among th...

Plants and animals are often used as a source for inspiration in biomimetic engineering. However, stronger engagement of biologists is often required in the field of biomimetics. The actual strength of using biological systems as a source of inspiration for human problem solving does not lie in a perfect copy of a single system but in the extractio...

Aim: Limited data exist on acanthocephalan infections of hedgehogs in the world. Our objective was to investigate the prevalence and distribution of Macracanthorhynchus ingens infection in hedgehogs between August 2021 and March 2022 (n = 30) in the east of Iran. Methods: At first, infection with M. ingens was diagnosed based on morphologic feat...

Controlling the vector population in the environment may contribute to reducing the clinical dengue cases. This study aimed to evaluate the use of ovitraps to monitor the entomological indices of A. aegypti and verify if the traps contribute to reducing dengue cases in Ibirité, MG. The traps were made using a medium plant pot, a wooden pallet, a cl...

Schistosomiasis remains to be a significant public health problem in tropical and subtropical regions. Despite remarkable progress that has been made in the control of the disease over the past decades, its elimination remains a daunting challenge in many countries. This disease is an inflammatory response-driven, and the positive outcome after inf...

Abstract. The life history features of the pestiferous slug Mariaella dussumieri (L. Pfeiffer, 1855)(Gastropoda: Ariophantidae) were studied in the laboratory. The growth and reproduction of M. dussumieri were studied using multiple cohorts of juveniles hatching from the eggs of field-collected and laboratory-reared individuals. About 18 out of 215...

The feasibility of applying a low‐cost and portable NIR spectrometer to detect the S‐ovalbumin content of eggs was investigated in this study, and a model population analysis based competitive adaptive reweighted sampling (MPA‐CARS) algorithm was proposed to reduce the dimensionality of spectral data. The NIR spectra of egg samples with different s...

Study on biology and life cycle of Teak skeletonizer W. (Lepidoptera: Pyralidae) was carried out during kharif season of 2021 in the laboratory The common laboratory conditions viz., 30º C temperature and 73% relative humidity (RH) were maintained for the investigation. Results reveal that there were fifth larval instars. Average larval duration wa...

Mantidis Ootheca (Sangpiaoxiao, mantis egg case) is a typical multi-origin Chinese medicinal material. The Chinese Pharmacopoeia stipulates that the Mantidis Ootheca originates from three species of Mantis: Tenodera sinensis, Statilia maculate, and Hierodula patellifera. However, Mantidis Ootheca mainly relies on field collection, which leads to co...

Syntheses of knowledge are important to reveal trends, biases and gaps in the scientific literature, indicating main data shortfalls and research needs. In this regard, the authors conducted a broad systematic review on the literature about freshwater fish eggs and larvae to investigate (a) temporal trends in the global scientific production, (b) t...

Background Gastrointestinal nematodes are one of the serious health problems on the human society and in the livestock industry. Marshallagia marshalli is one of the most prevalent gastrointestinal nematodes in small ruminant, have subtle but more significant adverse effects on the health and fitness of their hosts.AimIn this study, green synthesiz...

Cladomorphus petropolisensis sp. nov., a new species of stick insect from Petrópolis, Rio de Janeiro, Brazil, is herein described and compared to the other sympatric species, C. phyllinus Gray, 1835 (Phasmatidae, Cladomorphinae). The description of the new species is supported by morphological and molecular evidence. Kimura-2-parameter (K2P) intras...

The electronic configuration diagrams are schemes that allow explaining some properties of the elements in the periodic table, considering the movement and filling of electrons in the orbitals according to the rules of Hund, to understand concepts at the electronic level such as electronegativity, shielding effect of electrons, ionization energy, a...

This experiment has been conducted for investigating the effect of the number of hatchable eggs’ daily collecting times on such indices as egg weight, the weight of the fertilized eggs and percentage of the cracked and broken egg in the broiler parent stock. The study was carried out on 46-week-old Arbor Acers Plus Chicken within a completely rando...

The largest aggregation of spawning American horseshoe crabs in the world occurs in Delaware Bay and supports one of the largest concentrations of shorebirds in the western hemisphere where the birds feed on horseshoe crab eggs during migration. Unregulated harvest in the 1990s is associated with the decline of shorebird populations using the bay,...

Studies assessing latitudinal variations in habitat conditions and phenotypic plasticity among populations yield evidence of the mechanisms governing differentiation in the potential to adapt to current/future habitat changes. The cosmopolitan copepod species Acartia tonsa thrives across ocean clines delimiting Seasonal (30–40° S) and Permanent (10...

Purpose To report outcome of planned oocyte cryopreservation (POC) in the first 8 years of this treatment in our center. Methods A retrospective study in a university-affiliated medical center. Results A total of 446 women underwent POC during 2011–2018. Fifty-seven (13%) women presented to use these oocytes during the study period (until June 20...

Background The gold standard to diagnose food allergy (FA) is a double-blind, placebo-controlled food challenge (OFC), even if it shows potential risk of severe allergic reactions for the patient and is time-consuming. Therefore, easier, and less invasive methods are needed to diagnose FA and predict the tolerance, changing the clinical practice....

Background Oral immunotherapy (OIT) is an emerging method for treating food allergy in children. However, data regarding adults undergoing this process are lacking. Methods We retrospectively analyzed the medical records of patients with food allergy aged ≥17 years who completed OIT treatment between April 2010 and December 2020 at Shamir Medical...

Pioneer colonization by beneficial microorganisms promote a shift in the composition of the gut microbiota, excluding opportunistic pathogens. Commercially, the horizontal transmission of both apathogenic and pathogenic organisms is common during the hatching phase. The microbial bloom occurs as the humidity rises during hatch, exposing naïve chick...

The performance of the urine reagent strips (URS) in detecting the presence and estimating the intensity of Schistosoma haematobium infection was evaluated using urine filtration microscopy as a reference standard. Urine samples collected from 1288 school-age children living in five villages of the Afar and one village in the Gambella Regional Stat...

Mouthbrooding in cichlids is a behaviour that protects vulnerable offspring. However, the efficacy of this behaviour has not been properly estimated in mouthbrooders that spawn on the bottom or in open water. The present study examined changes in brood size during mouthbrooding in two open-water spawning cichlids from Lake Tanganyika, Cyprichromis...

Background This research aims to evaluate the feasibility of using avian immunoglobulins (IgY) raised against adhesion factors of enterotoxigenic Escherichia coli (ETEC) as prophylaxis of diarrheal illness caused by these pathogens. ETEC requires adhesion to human intestinal epithelial cells as a primary step in establishing enteric infection. Ther...

Parasitic infections can have detrimental effects on the reproductive capacity of their hosts. Infections by the cestode Taenia pisiformis in rabbits is generally not associated with increased mortality of offspring or with loss of maternal body condition but can result in reduced fecundity, and increased circulating progesterone levels have been r...

The fossil record of dinosaur eggs is highly biased; in contrast to the relatively rich egg record for theropods and sauropodomorphs, the characteristics of ceratopsian eggs have remained unknown because of an absence of embryo-containing eggs. On the basis of well-preserved Protoceratops (Ceratopsia) and Mussaurus (Sauropodomorpha) eggs, Norell et...

This experiment was conducted in order to investigate the effect of manganese (Mn) supplementation in the diet of laying hens on performance and eggshell quality in the second laying cycle. A total of, 360 107-wk-age Hy-Line W36 laying hens were allocated in a randomized complete block design with 6 treatments, 5 replicates and 12 hens in each. The...

The diamondback moth (DBM), Plutella xylostella L., is an important pest of cruciferous vegetables, and population control mainly depends on chemical pesticides. Emamectin benzoate is a highly effective insecticide used for controlling DBM. However, it is unknown how the sublethal effects of low concentration residues of emamectin benzoate on DBM....

The effects of selection on developmental variants have not yet been rigorously investigated on variable prey quantities. We investigated the food exploitation strategy of first ( F 1 ) and fifteenth ( F 15 ) generation slow and fast developers of Propylea dissecta (Mulsant) in the presence of scarce and abundant quantities of pea aphid, Acyrthosip...