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Egg quality

N Sharma, P W Hunt, B C Hine, N K Sharma, A Chung, R A Swick, I Ruhnke
A study was conducted to determine the performance, egg quality, and liver lipid reserves of laying hens exposed to ranges contaminated with Ascaridia galli. Sixteen-week-old Lohmann Brown laying hens (n = 200) were divided into 4 treatments with 5 replicates containing 10 hens per pen. Hens of treatment 1 [negative control (NC)] ranged on a decontaminated area, and hens of treatments 2 (low infection) and 3 (medium infection) ranged on areas previously contaminated by hens artificially infected with 250 and 1,000 embryonated A...
March 16, 2018: Poultry Science
Melissa A Nashat, Rodolfo J Ricart Arbona, Elyn R Riedel, Olga Francino, Lluis Ferrer, Kerith R Luchins, Neil S Lipman
Demodex mites are microscopic, cigar-shaped, follicular mites often regarded as commensal microfauna in mammals. Although Demodex spp. can cause dermatologic disease in any immunocompromised mammal, they are rarely reported in laboratory mice. Recent identification of Demodex musculi in a colony of immunodeficient mice with dermatitis afforded us the opportunity to investigate the comparative sensitivity of 4 antemortem diagnostic techniques to detect D. musculi-superficial skin scrape (SSS), tape impression (TI), fur pluck (FP), and deep skin scrape (DSS)-which we performed on 4 anatomic sites (face, interscapular region [IS], caudal ventrum [CV], and caudal dorsum [CD]) in 46 mice...
March 1, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
Jun He, Heyang Zheng, Daodong Pan, Tao Liu, Yangying Sun, Jinxuan Cao, Zhen Wu, Xiaoqun Zeng
Sheldrake is a duck breed widely used for its meat and eggs. In this study, the quantities of abdominal fat, sebum, intramuscular fat and liver fat, meat quality (pH, cooking loss, drip loss, and shear force), and expression and activity of several enzymes at different ages were determined. The results showed that the fat content increased (P < 0.05) during the aging process (90 d, 180 d, 270 d, and 360 d). Fatty acid synthase (FAS) and malic enzyme (ME) were chosen to represent the activity of lipid biosynthesis in Sheldrake ducks...
March 15, 2018: Poultry Science
Mery Munoz-Persy, Alfredo J Lucendo
Eosinophilic esophagitis (EoE) is a unique form of non-IgE-mediated food allergy characterized by esophageal eosinophilic infiltration that commonly causes dysphagia and food impaction in children and adolescents. Assessing the efficacy of dietary restrictions or drug therapies to achieve clinical and histologic resolution of EoE through randomized controlled trials and meta-analyses has resulted in new evidence-based guidelines. Avoiding food triggers is the only therapy targeting the cause of the disease...
March 17, 2018: European Journal of Pediatrics
T S M Carvalho, L S Sousa, F A Nogueira, D P Vaz, M M Saldanha, M V Triginelli, M F V S Pinto, N C Baião, L J C Lara
This work aimed at evaluating the effects of 4 digestible Met+Cys levels on the diet of commercial layers and their influence on the productive performance, quality, and amino acid profile of eggs and economic viability of the activity. A total of 576 white Lohmann LSL-Lite layers was distributed into 6 replicates of 24 birds for each diet. The experimental design was completely randomized, with 4 treatments defined by levels evaluated in the feed (0.465, 0.540, 0.581, and 0.647%). The productive performance was measured for 30 weeks...
March 13, 2018: Poultry Science
Martina Belli, Shunichi Shimasaki
Growth and differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) are oocyte-secreted factors with a leading role in the control of ovarian function in female reproduction, modulating both the cell fate of the somatic granulosa cells and the quality and developmental competence of the egg. This short review aims to consolidate the molecular aspects of GDF9 and BMP15 and their integral actions in female fertility to understand particularly their effects on oocyte quality and fetal growth. The significant consequences of mutations in the GDF9 and BMP15 genes in women with dizygotic twins as well as the clinical relevance of these oocyte factors in the pathogenesis of primary ovarian insufficiency and polycystic ovary syndrome are also addressed...
2018: Vitamins and Hormones
Grace P Abris, Na-Hui Kim, Sherlyn Mae P Provido, Sangmo Hong, Sung Hoon Yu, Chang Beom Lee, Jung Eun Lee
BACKGROUND: Migration has an influence on health behavior and food intake. Dietary variety is a key component to high-quality diets because a single food item does not contain a variety of nutrients and may not reflect nutritional adequacy. We aimed to compare the dietary diversity scores (DDS), food variety scores (FVS), and nutrient adequacy levels of married Filipino immigrant women in Korea to those of Korean women. METHODS: We matched the data of 474 participants aged 20-57 years from the Filipino Women's Diet and Health Study (FiLWHEL) by age category with those of married Korean women randomly selected from the Korea National Health and Nutrition Examination Survey (KNHANES)...
March 15, 2018: BMC Public Health
Marcia C Inhorn, Pasquale Patrizio
Reproductive health services, including infertility care, are important in countries with infrastructure deficits, such as Lebanon, which now hosts more than one million Syrian refugees. Islamic prohibitions on child adoption and third-party reproductive assistance (donor eggs, sperm, embryos, and surrogacy) mean that most Muslim couples must turn to in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) to overcome their childlessness. Attempts to bring low-cost IVF-ICSI to underserved populations might help infertile couples where no other services are available...
March 1, 2018: AMA Journal of Ethics
J K Pinnegar
The damselfish Chromis chromis is typically the most abundant fish species in the rocky littoral environment of the Mediterranean Sea, where it feeds in huge shoals on incoming zooplankton and rests near the seabed each night. Research has shown that large populations of C. chromis play a fundamental role by transferring carbon, nitrogen and phosphorus directly from the pelagic system to the littoral in the form of solid and liquid wastes and therefore that this species acts as a vital conduit for nutrients...
March 2018: Journal of Fish Biology
Zhang Jian-Feng, Yao Yun-Yi, Xiong Chun-Rong, Zhao Song, Feng Yun, Wang Xin-Yao, Li Wei
OBJECTIVE: To evaluate the pathogenic detection capacity of county - level organizations in Jiangsu Province, and to improve the field schistosomiasis detection capacity of professional personnel, thus to provide the technical support for the construction of quality control system of schistosomiasis field detection. METHODS: The eggs of Schistosoma japonicum were obtained from rabbit schistosomiasis models and were produced into suspensions at four different concentrations...
February 27, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
I C Dunn
No abstract text is available yet for this article.
March 13, 2018: British Poultry Science
Mahmoud Alagawany, Mohamed E Abd El-Hack, Mayada R Farag, Swati Sachan, Kumaragurubaran Karthik, Kuldeep Dhama
Antibiotics as growth promoters in poultry have been used for long time for improving feed efficiency and performance. Due to their various side-effects such as antibiotic resistance, destruction of beneficial bacteria in the gut, and dysbiosis, it is required to think about some alternatives. Probiotics are one of the options in this regard for improving poultry production. Probiotics are defined as "live microorganisms that, when administered in adequate amounts, confer a health benefit on the host." They are available in various forms for use as feed additives...
March 12, 2018: Environmental Science and Pollution Research International
Renée C Firman
Males and females rarely have identical evolutionary interests over reproduction, and when the fitness of both sexes is dependent upon paternity outcomes, sexual conflict over fertilization is inevitable. In internal fertilizers, the female tract is a formidable selective force on the number and integrity of sperm that reach the egg. Selection on sperm quality is intensified when females mate multiply and rival males are forced to compete for fertilizations. While male adaptations to sperm competition have been well documented (e...
March 10, 2018: Annals of the New York Academy of Sciences
Rikke Heidemann Olsen, Henrik Christensen, Susanne Kabell, Magne Bisgaard
Pododermatitis has been observed in several layer flocks in Denmark during 2015. The aetiology is complex including litter quality, nutrition, management etc. Bacterial pathogens associated with pododermatitis, however, have not received much attention. The aim of the present study was therefore to identify 106 bacterial isolates obtained from pododermatitis in table egg layers in addition to five isolates from spleen/bursa presternalis. Isolates were obtained from layers from six affected flocks. All isolates were identified by standard bacterial methods, species-specific PCRs, 16S rRNA sequencing or Matrix-assisted laser desorption-ionization identification...
March 8, 2018: Avian Pathology: Journal of the W.V.P.A
Joanna Nowosad, Mateusz Sikora, Dariusz Kucharczyk
Embryonic development of lower vertebrates can be influenced by many factors, especially when outside of the mother's body and under the influence of variable abiotic and biotic factors. In this study, the effects of fertilization of post-ovulatory aged (overmature) oocytes of ide Leuciscus idus on the risk of developing anomalies in ide larvae were assessed under controlled conditions. There was a negative effect of delayed fertilization of post-ovulatory aged (overmature) oocytes in the ovary on the quality of offspring, which caused reduced survival 3 days post-fertilization and at the hatching stage (68...
March 5, 2018: Diseases of Aquatic Organisms
M-A Sirard, F-X Grand, R Labrecque, C Vigneault, P Blondin
The selection of the best dairy heifers is mainly driven by the genetic value of their parents. The phenotype analysis of cows and of the daughters of bulls has been used to identify the best genetic value for decades before being replaced by genomic selection of individuals that are not yet parents. Because it is possible to predict the future value of an individual by its genetic makeup, it becomes feasible to do it as early as the blastocyst stage and to decide which should be transferred or not. Because we know the genotype of an animal at birth, or even before, it is becoming desirable to reproduce this animal as soon as possible to reduce generation interval and improve selection speed...
March 3, 2018: Journal of Animal Science
I Crha, P Ventruba, E Filipinská, M Dziakova, J Žáková, M Ješeta, E Lousová, Z Papíková
OBJECTIVE: To compare the results of ovarian stimulation with LH surge blockade by medroxyprogesterone acetate or GnRH antagonist in oocytes donors. To present current options of exogenous and endogenous progestins instead of GnRH analogues to block LH surge during ovarian stimulation. DESIGN: Retrospective study of oocyte donor cycles and literature review. SETTING: Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk university and University Hospital Brno...
2018: Ceská Gynekologie
X J Lei, K Y Lee, I H Kim
The aim of this study was to evaluate the effects of dietary levels of xylanase on production performance, egg quality, nutrient digestibility, and excreta microbiota shedding of laying hens in a 12-week trial. Two-hundred-forty Hy-Line brown laying hens (44 wk old) were distributed according to a randomized block experimental design into one of 4 dietary treatments with 10 replicates of 6 birds each. The 4 dietary treatments were corn-soybean-meal-wheat-based diets supplemented with 0, 225, 450, or 900 U/kg xylanase...
March 1, 2018: Poultry Science
Akshaya Shanmugam, Mohammad Usmani, Addison Mayberry, David L Perkins, Daniel E Holcomb
Miniaturized imaging devices have pushed the boundaries of point-of-care imaging, but existing mobile-phone-based imaging systems do not exploit the full potential of smart phones. This work demonstrates the use of simple imaging configurations to deliver superior image quality and the ability to handle a wide range of biological samples. Results presented in this work are from analysis of fluorescent beads under fluorescence imaging, as well as helminth eggs and freshwater mussel larvae under white light imaging...
2018: PloS One
Maria L Pappas, Georgia Tavlaki, Anneta Triantafyllou, George Broufas
Phytophagy is a common feature among pure herbivorous insects and omnivores that utilise both plant and prey as food resources; nevertheless, experimental evidence for factors affecting their interactions is restricted to intraguild predation and predator-mediated competition. We herein focused on plant-mediated effects that could result from plant defence activation or quality alteration and compared the performance of an omnivore, the western flower thrips Frankliniella occidentalis, and a pure herbivore, the greenhouse whitefly Trialeurodes vaporariorum, on cucumber plants previously infested with either species...
March 5, 2018: Scientific Reports
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