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https://www.readbyqxmd.com/read/29166535/genetic-parameters-in-female-reproductive-traits-of-nile-tilapia-oreochromis-niloticus
#1
Grazyella M Yoshida, Carlos A L DE Oliveira, Natalí M Kunita, Gabriel S Rizzato, Ricardo P Ribeiro
Genetic parameters for reproductive traits in female Nile tilapia were estimated in this study using Bayesian inference method. The data set presented information from 451 Nile tilapia females that were evaluated at two different places in Maringá - Paraná - Brazil (hapas of 1 and 10 m³) and at one location in Alfenas - Minas Gerais - Brazil. A spawning examination was conducted once a week from October 2012 to March 2013 for a total of 23 weeks of evaluation. Single-trait analyses for spawning success, multiple spawning, spawning frequency, and volume of eggs/female were performed by using the software MTGSAM Threshold...
2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29166534/effect-of-syzygium-cumini-leaves-on-laying-hens-performance-and-egg-quality
#2
Ednardo R Freitas, Danilo R Fernandes, Davyd H Souza, Francisco D T Dantas, Rebeca C Santos, Gilson B Oliveira, Carlos Eduardo B Cruz, Nádia M Braz, Lorena F Câmara, Germano A J Nascimento, Pedro H Watanabe
The aim of this study was to evaluate the effect of Syzygium cumini leaves (SCL) in laying hens diets on productive performance, egg quality and lipid oxidation of yolk. A total of 108 Hysex White laying hens were distributed in a completely randomized design with three treatments and six replicates of six birds each. The treatments consisted of SCL inclusion at dietary levels of 0, 5 and 10 g/kg. There was no significant effect of SCL inclusion on feed intake, laying percentage, weight and egg mass, feed conversion ratio, Haugh units, specific gravity, percentage of yolk, albumen and egg shells and shell thickness...
2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29166429/the-life-cycle-of-neotropical-ground-beetle-abaris-basistriata-coleoptera-carabidae-reared-on-different-substrates
#3
C L Barbosa-Andrade, F J Cividanes, S T S Matos, D J Andrade
Carabids are recognized worldwide as biological control agents of agricultural pests. The objective was to compare the life cycle of Abaris basistriata Chaudoir (Coleoptera: Carabidae) on three substrates: soil, fine vermiculite, or paper napkins. The biological cycle of A. basistriata presented different durations in soil and paper. The viability of eggs and larvae survival of the first and second instars were similar on all three substrates, while the third instar and pupa in the soil presented higher survival when compared with vermiculite and paper...
November 21, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29165906/noninvasive-high-speed-near-infrared-imaging-of-the-biomolecular-distribution-and-molecular-mechanism-of-embryonic-development-in-fertilized-fish-eggs
#4
Mika Ishigaki, Takashi Nishii, Paralee Puangchit, Yui Yasui, Christian W Huck, Yukihiro Ozaki
In the present study, the distribution of biomaterials and its molecular mechanism of embryonic development in Japanese medaka fish were analyzed nondestructively and noninvasively without staining using near-infrared (NIR) imaging. The microscope NIR imaging system used in this research was a device capable of ultra-high-speed imaging; using this system, one can acquire microscopic imaging data in a few seconds. Therefore, the medaka eggs remained alive throughout measurements and were successfully monitored in vivo...
November 22, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/29165817/development-of-mayonnaise-with-substitution-of-oil-or-egg-yolk-by-the-addition-of-chia-salvia-hisp%C3%A3-nica-l-mucilage
#5
Sibele Santos Fernandes, Myriam de Las Mercedes Salas Mellado
Chia mucilage is formed by the hydration of chia seeds and presents characteristics that potentiate its application as substitute of fat in several foods. In this study, mayonnaises were prepared with different levels of freeze-dried chia mucilage instead of oil or egg yolk. The substitution of oil in mayonnaise promoted increased stability and texture parameters, and the mayonnaise substituted by egg yolk presented similar stability and texture parameters as the control mayonnaise. The substitution of oil in mayonnaise was about 50% with 45% oil substitution, whereas for the mayonnaise with 35% of egg yolk replacement it was about 0...
November 22, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29165707/inflammation-dynamics-after-praziquantel-treatment-of-schistosoma-haematobium-reflected-by-urinary-eosinophil-cationic-protein
#6
Chalotte Willemann Stecher, Hassan K M Fofana, Henry Madsen, Shona Wilson, Adama D Keita, Aly Landouré, Mamadou S Traoré, Birgitte J Vennervald, Claus M Reimert, Moussa Sacko
Background: This cohort study assessed urinary eosinophil cationic protein (ECP) as an indicator for urinary tract morbidity and inflammation indication related to single-dose or dual-dose praziquantel (PZQ) treatment. Methods: Urinary ECP was measured at baseline, 24 h and 9 weeks after treatment (baseline 305, follow-up 204 participants, ages 2-40 years). Results: ECP was significantly associated with the intensity of infection at baseline (p<0...
November 20, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29165218/molecular-identification-of-trichuris-suis-and-trichuris-trichiura-eggs-in-human-populations-from-thailand-lao-pdr-and-myanmar
#7
Issarapong Phosuk, Oranuch Sanpool, Tongjit Thanchomnang, Lakkhana Sadaow, Rutchanee Rodpai, Witthaya Anamnart, Penchom Janwan, Adulsak Wijit, Sakhone Laymanivong, Win Pa Pa Aung, Pewpan M Intapan, Wanchai Maleewong
Trichuris trichiura is a soil-transmitted helminth infecting human populations globally. Human cases caused by Trichuris suis and Trichuris vulpis have also been reported. Molecular identifications of Trichuris species infecting human populations in Lao PDR and Myanmar are lacking. Here, we explored molecular data obtained from Trichuris eggs recovered from human fecal samples from these countries and compared these with new and existing data from Thailand. Nuclear ribosomal DNA (18S and ITS2) sequences were amplified from Trichuris eggs and sequenced...
November 20, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29162771/in-vivo-evidence-for-possible-up-regulating-roles-of-lysophosphatidic-acid-around-fertilization-in-rats
#8
Tae Takeda, Miki Shirasaka, Makoto Sugiyama, Ryota Terashihma, Mitsumori Kawaminami, Shiro Kurusu
Lysophosphatidic acid (LPA) produced by autotaxin (ATX) is recognized as a multi-functional mediator in mammalian reproduction. This study focused on possible effect(s) of LPA on ovulated cumulus-oocyte complexes (COCs) around fertilization in rats in vivo. Immunohistochemistry revealed the cell-type-dependent localization of candidates of synthetic enzymes, ATX and two phospholipases A2 isofroms, and LPA receptors LPA1~4 in ovulated COCs and in oviductal epithelium. The eggs ovulated with a form of COCs became denuded of cumulus cells and underwent fragmentation in the absence of fertilization...
November 21, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29161480/-biological-parameters-of-meccus-phyllosomus-phyllosomus-burmeister-1835-triatoma-recurva-st%C3%A3-l-1868-hemiptera-reduviidae-and-their-laboratory-hybrids
#9
Lizbeth Díaz, Karen Covarrubias, Ángel Licón, Mixtli Astorga, Yaneth Moreno, José Alejandro Martínez
INTRODUCTION: Hybrids from species and subspecies of Mexican triatomines have shown outstanding biological and behavioral characteristics as compared with their parental groups. This could lead to an increasing risk of transmission of Trypanosoma cruzi to human and animal reservoir hosts. OBJECTIVE: To describe and compare biological parameters related to the life cycle of Triatoma recurva, Meccus phyllosomus phyllosomus and their laboratory hybrids and estimate their risk as transmitters of T...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29161444/risk-perceptions-of-public-health-and-food-safety-hazards-in-poultry-husbandry-by-citizens-poultry-farmers-and-poultry-veterinarians
#10
M van Asselt, P M Poortvliet, E D Ekkel, B Kemp, E N Stassen
Differences in risk perceptions of public health and food safety hazards in various poultry husbandry systems by various stakeholder groups, may affect the acceptability of those husbandry systems. Therefore, the objective was to gain insight into risk perceptions of citizens, poultry farmers, and poultry veterinarians regarding food safety and public health hazards in poultry husbandry systems, and into factors explaining these risk perceptions. We surveyed risk perceptions of Campylobacter contamination of broiler meat, avian influenza introduction in laying hens, and altered dioxin levels in eggs for the most commonly used broiler and laying hen husbandry systems in Dutch citizens (n = 2,259), poultry farmers (n = 100), and poultry veterinarians (n = 41)...
November 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/29161196/emergence-of-mixed-oil-fat-emulsions-for-use-in-parenteral-nutrition
#11
Manpreet S Mundi, Robert Martindale, Ryan T Hurt
Since early work by Wretlind and Schuberth led to the development of a stable and safe intravenous fat emulsion (IFE) using soybean oil (SO) and egg phospholipid emulsifier, IFEs have become a crucial source of essential fatty acids and nonprotein energy in parenteral nutrition. However, largely due to their high ω-6 polyunsaturated fatty acid (PUFA) and phytosterol content, SO IFEs have been associated with complications, including a proinflammatory profile and hypertriglyceridemia, as well as intestinal failure-associated liver disease...
November 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29161056/de-novo-food-allergy-in-pediatric-liver-transplantation-recipients
#12
Ratchaneewan Sinitkul, Wiparat Manuyakorn, Wasu Kamchaisatian, Soamarat Vilaiyuk, Suwat Benjaponpitak, Chatmanee Lertudompholwanit, Suporn Treepongkaruna
BACKGROUND: Food allergy (FA) prevalence is increasing in pediatric liver transplantation (LT). However, the clinical course is still limited. OBJECTIVE: This retrospective cohort study aimed to identify the prevalence, risk factors, and the natural history of de novo FA in children post LT. METHODS: Medical records of pediatric LT recipients from Jan 2001 - Dec 2014 were reviewed. De novo FA was diagnosed by symptoms after exposure to culprit food occurring after LT, and improvement after diet elimination...
November 22, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/29160554/digest-evolution-of-sperm-size-and-number-in-external-fertilizers
#13
Pedram Samani
Ejaculate evolution in externally fertilizing species is influenced by competition among sperm as well as the rate at which sperm and eggs encounter one another. Liao et al. (2017) found that ejaculate evolution in external fertilizers depended on spawning conditions. In anurans, gametes are released very close to eggs and are relatively protected from dispersal by water currents, thus sperm competition is more important. However, in fish, sperm-egg encounter rate plays a much more important role in ejaculate evolution because gametes may be easily dispersed when released into the aquatic environment...
November 21, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29160553/the-evolutionary-dynamics-of-adaptive-virginity-sex-allocation-and-altruistic-helping-in-haplodiploid-animals
#14
Petri Rautiala, Heikki Helanterä, Mikael Puurtinen
In haplodiploids, females can produce sons from unfertilized eggs without mating. However, virgin reproduction is usually considered to be a result of a failure to mate, rather than an adaptation. Here we build an analytical model for evolution of virgin reproduction, sex-allocation, and altruistic female helping in haplodiploid taxa. We show that when mating is costly (e.g. when mating increases predation risk), virginity can evolve as an adaptive female reproductive strategy. Furthermore, adaptive virginity results in strongly divergent sex-ratios in mated and virgin queen nests ('split sex ratios'), which promotes the evolution of altruistic helping by daughters in mated queen nests...
November 21, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29160513/detection-of-schistosomiasis-in-an-area-directly-affected-by-the-s%C3%A3-o-francisco-river-large-scale-water-transposition-project-in-the-northeast-of-brazil
#15
José Damião da Silva, Marta Cristhiany Cunha Pinheiro, Mariana Silva Sousa, Vivian da Silva Gomes, Issis Maria Nogueira de Castro, Alberto Novaes Ramos, Fernando Schemelzer de Moraes Bezerra
INTRODUCTION: The development of the São Francisco River Integration Project [Projeto de Integração do Rio São Francisco (PISF)] in the State of Ceará, Brazil, has resulted in environmental and socioeconomic changes with potential risks to public health. We aimed to determine the presence of Schistosoma mansoni infections in schoolchildren (aged 7-14 years) and workers from the construction site in an area under the direct influence of the PISF in the municipality of Brejo Santo-CE, to aid in the prevention and control of schistosomiasis...
September 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29160512/evaluation-of-the-immunogenicity-of-schistosoma-mansoni-egg-surface
#16
Renata Russo Frasca Candido, Timothy Guy St Pierre, Malcolm Kenneth Jones, Carlos Graeff-Teixeira
INTRODUCTION: Immunogenicity of Schistosoma mansoni egg surface was examined to determine whether intact eggshells have lower antigenicity than ruptured eggs. METHODS: Swiss Webster mice were inoculated with intact or ultrasonicated S. mansoni eggs isolated from infected human feces. Mice were separated into four groups of six animals each and immunizations were performed approximately every 20 days during a 60-day period. Groups 1-4 were administered with saline solution, sonicated eggs with Freund's adjuvant, sonicated eggs without Freund's adjuvant, and intact eggs, respectively...
September 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29160365/foraging-behavior-and-at-sea-distribution-of-white-tailed-tropicbirds-in-tropical-ocean
#17
L F A S Campos, A B Andrade, S Bertrand, M A Efe
We used miniaturized GPS loggers and site observations to access foraging patterns and nest behaviour of the White-tailed Tropicbird Phaethon lepturus (WTTB), an endangered species at its South Atlantic breeding colony. Dual foraging pattern was observed with alternation between long and short foraging trips. Birds responsible for nest attendance engaged in short foraging trips with mean distance from colony of 25 ± 17 km, total distance covered of 79 ± 65 km and mean duration of 4.02 ± 5.28 hours. Birds flew by dawn and returned before dusk while partners were at sea for long foraging trips that ranged from four to 11 days, with mean maximum distance from colony of 105 ± 47...
November 9, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29160361/phylogeny-of-the-trichogramma-endosymbiont-wolbachia-an-alpha-proteobacteria-rickettsiae
#18
R P Almeida, R Stouthamer
Wolbachia (Hertig) endosymbionts are extensively studied in a wide range of organisms and are known to be transmitted through the egg cytoplasm to the offsping. Wolbachia may cause several types of reproductive modifications in arthropods. In Trichogramma species, parthenogenesis-inducing Wolbachia bacteria allow females wasps to produce daughters from unfertilized eggs and these bacteria are present in at least 9% of all Trichogramma species. Phylogenetic studies have led to the subdivision of the Wolbachia clade in five supergroups (A, B, C, D and E) and Wolbachia from Trichogramma belong to supergroup B...
November 9, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29160181/chick-embryo-model-homing-and-host-interactions-of-tissue-engineering-aimed-human-dental-stem-cells
#19
Jennifer Adriane Dos Santos, Monica Talarico Duailibi, Durvanei Augusto Maria, Sonia Elisabete Alves de Lima Will, Paulo Cesar Simoes Silva, Ligia Ferreira Gomes, Silvio Eduardo Duailibi
Human dental stem cells (hDSC) have a potential for regenerative therapies and could differentiate in vitro into many tissues such as dentin, nerve and vascular endothelium. Gallus gallus domesticus developing fertilized egg, or chick embryo is an experimental model absent of xenografts rejection, largely employed in replacement of mammal species in scientific research and pre-clinical studies to evaluate angiogenesis and vasculogenesis, tissue differentiation, and embryonic development. This multiscale research deals with the homing and cell signaling effects of a standardized hDSC towards the receptor tissues of Gallus gallus domesticus in ovo...
November 21, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29159942/horizontal-transmission-of-metarhizium-anisopliae-hypocreales-clavicipitacea-and-the-effects-of-infection-on-oviposition-rate-in-laboratory-populations-of-musca-domestica-diptera-muscidae
#20
Dalton K Baker, Steven J Rice, Diana M Leemon, Peter J James
BACKGROUND: Effective control of house fly, Musca domestica (L.), populations currently relies on the use of chemical insecticides in most situations. Entomopathogenic fungi such as Metarhizium anisopliae (Metschn.) Sorokin may provide an alternative to chemicals and their efficacy may be enhanced by autodissemination amongst flies. This study assessed the capacity of M. anisopliae for transmission between adult M. domestica and the effects of infection on the fecundity of females. RESULTS: Metarhizium anisopliae was transmitted between adult M...
November 21, 2017: Pest Management Science
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