keyword
MENU ▼
Read by QxMD icon Read
search

Egg quality

keyword
https://www.readbyqxmd.com/read/27925269/lifecycle-exposure-of-fathead-minnows-to-environmentally-relevant-concentrations-of-the-%C3%AE-blocker-drug-propranolol
#1
Joanne L Parrott, Vimal K Balakrishnan
Propranolol is a human pharmaceutical β-blocker that has been detected in municipal wastewater effluents at ng/L to low µg/L. To assess the potential of this compound to affect fish, fathead minnow (Pimephales promelas) were exposed for a lifecycle in a flow-through system to nominal propranolol concentrations of 0.87, 8.7, 87, 870 and 8,700 ng/L. Measured propranolol concentrations were below detection for the two lowest exposure concentrations, and were 76, 580, and 7,800 ng/L for the three highest exposure concentrations...
December 7, 2016: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/27925000/optimization-of-artificial-propagation-in-piracanjuba-fish-brycon-orbignyanus-using-cryopreserved-semen
#2
V O Felizardo, C C V Melo, L D S Murgas, E S Andrade, R D Navarro, T F Ftreitas
:   BACKGROUND: Cryopreserved semen could facilitate procedures during the artificial reproduction in fish. Factors affecting cryopreservation efficiency are important to define efficient protocols. OBJECTIVE: This study investigated the application of cryoprotectants on the quality of piracanjuba fish semen, the sperm concentration required for oocyte fertilization and spermatic activation. MATERIALS AND METHODS: We evaluated two intracellular cryoprotectant solutions (DMSO and methanol) and two extracellular cryoprotectant solutions (egg yolk and lactose) to cryopreserved piracanjuba semen...
September 2016: Cryo Letters
https://www.readbyqxmd.com/read/27920197/supplementation-of-fine-and-coarse-limestone-in-different-ratios-in-a-split-feeding-system-effects-on-performance-egg-quality-and-bone-strength-in-old-laying-hens
#3
A Molnár, L Maertens, B Ampe, J Buyse, J Zoons, E Delezie
Different ratios of fine- (FL) and coarse limestone (CL) were compared (50FL:50CL, 30FL:70CL, 0FL:100CL) in conventional (C) and split feeding (S) for their effects on performance, egg quality traits, and bone quality of old, brown laying hens (72 to 83 wk). Each treatment consisted of 42 hens (7 hens × 6 replicates). In the C system diets supplemented with limestone were provided during the whole day, whereas in the S system a morning diet was fed without added limestone, and only the afternoon diet was supplemented with different limestone ratios...
December 5, 2016: Poultry Science
https://www.readbyqxmd.com/read/27920194/experimental-validation-of-the-avivet-trap-a-tool-to-quantitatively-monitor-the-dynamics-of-dermanyssus-gallinae-populations-in-laying-hens
#4
G A Lammers, R G G Bronneberg, J C M Vernooij, J A Stegeman
Dermanyssus gallinae (D.gallinae) infestation causes economic losses due to impaired health and production of hens and costs of parasite control across the world. Moreover, infestations are associated with reduced welfare of hens and may cause itching in humans. To effectively implement control methods it is crucially important to have high quality information about the D.gallinae populations in poultry houses in space and time. At present no validated tool is available to quantitatively monitor the dynamics of all four stages of D...
December 5, 2016: Poultry Science
https://www.readbyqxmd.com/read/27918611/moisture-absorption-and-water-dynamics-in-the-powder-of-egg-albumen-peptide-met-pro-asp-ala-his-leu
#5
Shuailing Yang, Xuye Liu, Mingdi Zhang, Songyi Lin, Feng Chen
Moisture absorbed into the powder of Met-Pro-Asp-Ala-His-Leu (MPDAHL)-a novel egg albumen antioxidant peptide-profoundly affects its properties. In this study, we elucidated water dynamics in MPDAHL using DVS, DSC, and low-field (1) H NMR. Based on the DVS data, we found that MPDAHL sorption kinetics obey a parallel exponential model. DSC results indicated that both water and heating could change the microstructure of MPDAHL. The T2 parameters of NMR reflected the different phases of moisture absorption revealed that there were 4 categories of water with different states or mobility in the MPDAHL during the moisture absorption process...
December 5, 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27918417/efficacy-of-nitric-oxide-fumigation-for-controlling-codling-moth-in-apples
#6
Yong-Biao Liu, Xiangbing Yang, Gregory Simmons
Nitric oxide (NO) fumigation under ultralow oxygen (ULO) conditions was studied for its efficacy in controlling codling moth and effects on postharvest quality of apples. NO fumigation was effective against eggs and larvae of different sizes on artificial diet in 48 h treatments. Small larvae were more susceptible to nitric oxide than other stages at 0.5% NO concentration. There were no significant differences among life stages at 1.0% to 2.0% NO concentrations. In 24 h treatments of eggs, 3.0% NO fumigation at 2 °C achieved 100% egg mortality...
December 2, 2016: Insects
https://www.readbyqxmd.com/read/27917847/poultry-products-enriched-with-nutricines-have-beneficial-effects-on-human-health
#7
Gordana Kralik, Zlata Kralik
The paper presents nutritive value of broiler meat and table eggs, as these animal products are used for human nutrition on a daily basis. In the Republic of Croatia, average consumption of poultry meat amounts to 18.3 kg and to 160 eggs per capita.The most quality parts of broiler carcass are breasts and drumsticks with thighs. Breast muscles contain 21-23% protein, 1.90-1.97% fat, 75.28-76.01% water and 0.74-0.77% collagen. Thigh muscles contain 4.70-6.05% fat, 19.03-19.93% protein and 0.91-1.13% collagen...
February 1, 2017: Medicinski Glasnik
https://www.readbyqxmd.com/read/27917321/effects-of-arachidonic-acid-supplementation-in-maturation-diet-on-female-reproductive-performance-and-larval-quality-of-giant-river-prawn-macrobrachium-rosenbergii
#8
Chanpim Kangpanich, Jarunan Pratoomyot, Nisa Siranonthana, Wansuk Senanan
The giant river prawn (Macrobrachium rosenbergii) is one of the most farmed freshwater crustaceans in the world. Its global production has been stalling in the past decade due to the inconsistent quality of broodstock and hatchery-produced seeds. A better understanding of the role of nutrition in maturation diets will help overcome some of the production challenges. Arachidonic acid (20:4 n-6, ARA) is a fatty acid precursor of signaling molecules important for crustacean reproduction, prostaglandins E and F of the series II (PGE2 and PGF2α), and is often lacking in maturation diets of shrimp and prawns...
2016: PeerJ
https://www.readbyqxmd.com/read/27914517/effect-of-flaxseed-oil-and-microalgae-dha-on-the-production-performance-fatty-acids-and-total-lipids-of-egg-yolk-and-plasma-in-laying-hens
#9
M Neijat, O Ojekudo, J D House
The incorporation of omega-3 polyunsaturated fatty acids (PUFA) in the egg is dependent on both the transfer efficiency of preformed dietary omega-3 fatty acids to the eggs as well as endogenous PUFA metabolism and deposition. Employing an experimental design consisting of 70 Lohmann LSL-Classic hens (n=10/treatment) in a 6-week feeding trial, we examined the impact of graded levels of either flaxseed oil (alpha-linolenic acid, ALA) or algal DHA (preformed docosahexaenoic acid, DHA), each supplying 0.20%, 0...
December 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27914350/phosphorus-flows-in-a-peri-urban-region-with-intensive-food-production-a-case-study
#10
S Bittman, S C Sheppard, D Poon, D E Hunt
Excess phosphorus (P) in peri-urban regions is an emerging issue, whereas there is global depletion of quality mined supplies of P. The flow of P across the landscape leading to regional surpluses and deficits is not well understood. We computed a regional P budget with internal P flows in a fairly discreet peri-urban region (Lower Fraser Valley, BC) with closely juxtaposed agricultural and non-agricultural urban ecosystems, in order to clarify the relationship between food production, food consumption and other activities involving use of P (e...
November 30, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27913599/the-effect-of-food-quality-during-growth-on-spatial-memory-consolidation-in-adult-pigeons
#11
M F Scriba, J Gasparini, L Jacquin, C Mettke-Hofmann, N C Rattenborg, A Roulin
Poor environmental conditions experienced during early development can have negative long-term consequences on fitness. Animals can compensate negative developmental effects through phenotypic plasticity by diverting resources from non-vital to vital traits such as spatial memory to enhance foraging efficiency. We tested in young feral pigeons (Columba livia) how diets of different nutritional value during development affect the capacity to retrieve food hidden in a spatially complex environment, a process we refer to as "spatial memory"...
December 2, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27911012/the-role-of-age-of-disclosure-of-biological-origins-in-the-psychological-wellbeing-of-adolescents-conceived-by-reproductive-donation-a-longitudinal-study-from-age-1-to-age-14
#12
Elena Ilioi, Lucy Blake, Vasanti Jadva, Gabriela Roman, Susan Golombok
BACKGROUND: The question of whether children should be told of their biological origins is one of the most controversial issues regarding the birth of children through donated eggs, sperm, embryos or surrogacy. METHODS: In the sixth phase of this longitudinal study when the children were aged 14 years, family relationships and adolescent adjustment were examined in 87 families created through reproductive donation and 54 natural conception families. The quality of family relationships was assessed by standardised interview with mothers and by standardised questionnaires and an observational measure with mothers and adolescents...
December 2, 2016: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/27909569/the-walking-egg-project-how-to-start-a-twe-centre
#13
W Ombelet, J Goossens
The main objective of the Walking Egg non-profit organization is the implementation of good quality and affordable infertility centres in resource-poor countries. Three levels of assistance are suggested: A level 1 infertility clinic is a basic infertility clinic capable of offering semen analysis, hormonal assays, follicular scanning, ovulation induction and intrauterine inseminations. Level 2 infertility clinics are supposed to perform simplified IVF as well. Level 3 infertility clinics capable of offering ICSI, cryopreservation and operative endoscopy are not part of the Walking Egg Project in the initial phase...
June 27, 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/27903833/meal-distribution-of-dietary-protein-and-leucine-influences-long-term-muscle-mass-and-body-composition-in-adult-rats
#14
Layne E Norton, Gabriel J Wilson, Christopher J Moulton, Donald K Layman
BACKGROUND: Protein quantity and quality at a meal affect muscle protein synthesis (MPS); however, long-term effects of protein distribution at individual meals on adult muscle mass remain unknown. OBJECTIVE: We used a precise feeding protocol in adult rats to determine if optimizing postmeal MPS response by modifying the meal distribution of protein, and the amino acid leucine (Leu), would affect muscle mass. METHODS: Two studies were conducted with the use of male Sprague-Dawley rats (∼300 g) trained to consume 3 meals/d, then assigned to diet treatments with identical macronutrient contents (16% of energy from protein, 54% from carbohydrates, and 30% from fat) but differing in protein quality or meal distribution...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27903344/-a-control-study-of-artificial-oocyte-activation-in-the-same-period
#15
D Y Hao, R Zhang, X Zhang, C Y Shen, Y Yang, W B Wu, Y L Liu, J Liu, J R Zhang, X L Wang
Objective: To compare the fertility rate and embryo outcome between normal fertilization and the use of Calcium ionophore A23187 on the same period of the same cycle of human ovum for artificial activation. Methods: Patients who conducted the intracytoplasmic sperm injection (ICSI) cycle in vitro fertilization assisted reproductive from January 2015 to December in reproductive center of the Third Affiliated Hospital of Zhengzhou University were enrolled.The protocol of this study was approved by the ethics committee of The Third Affiliated Hospital of Zhengzhou University...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27902754/how-do-growth-and-sibling-competition-affect-telomere-dynamics-in-the-first-month-of-life-of-long-lived-seabird
#16
Yuichi Mizutani, Yasuaki Niizuma, Ken Yoda
Telomeres are nucleotide sequences located at the ends of chromosomes that promote genome stability. Changes in telomere length (dynamics) are related to fitness or life expectancy, and telomere dynamics during the development phase are likely to be affected by growth and stress factors. Here, we examined telomere dynamics of black-tailed gull chicks (Larus crassirostris) in nests with and without siblings. We found that the initial telomere lengths of singletons at hatching were longer than those of siblings, indicating that singletons are higher-quality chicks than siblings in terms of telomere length...
2016: PloS One
https://www.readbyqxmd.com/read/27898217/increased-telomerase-reverse-transcriptase-expression-associates-with-spontaneous-exit-from-m-ii-arrest-in-rat-eggs
#17
Shilpa Prasad, Shail K Chaube
In mammals, postovulatory egg aging deteriorates egg quality possibly by mediating spontaneous exit from metaphase-II (M-II) arrest and/or inducing apoptosis. To test this possibility, present study was designed to investigate telomerase reverse transcriptase (TERT) expression, Bcl2 expression, and DNA fragmentation during postovulatory egg aging in vivo, as well as in vitro. Results suggest that postovulatory egg aging induced a time-dependent increase in the number of eggs undergoing spontaneous exit from M-II arrest in vivo, as well as in vitro...
November 29, 2016: Cellular Reprogramming
https://www.readbyqxmd.com/read/27896480/ultimate-regulation-of-fecundity-in-species-with-precocial-young-declining-marginal-value-of-offspring-with-increasing-brood-size-does-not-explain-maximal-clutch-size-in-black-brent-geese
#18
James S Sedinger, Amanda W VanDellen, Alan G Leach, Thomas V Riecke
Lack 18:125-128 (1967) proposed that clutch size in precocial species was regulated by nutrients available to females during breeding. Drent and Daan 68:225-252 (1980) proposed the individual optimization hypothesis, whereby individual state determines the optimal combination of breeding date and clutch size. Neither hypothesis accounts for variation in nutrients among females at the end of egg laying, strong right truncations in clutch size distributions, or the fact that many species with precocial young are determinate layers...
November 28, 2016: Oecologia
https://www.readbyqxmd.com/read/27889102/analysis-of-gene-expression-and-regulation-implicates-c2h9orf152-has-an-important-role-in-calcium-metabolism-and-chicken-reproduction
#19
Long Liu, Yanfeng Fan, Zhenhe Zhang, Chan Yang, Tuoyu Geng, Daoqing Gong, Zhuocheng Hou, Zhonghua Ning
The reproductive system of a female bird is responsible for egg production. The genes highly expressed in oviduct are potentially important. From RNA-seq analysis, C2H9orf152 (an orthologous gene of human C9orf152) was identified as highly expressed in chicken uterus. To infer its function, we obtained and characterized its complete cDNA sequence, determined its spatiotemporal expression, and probed its transcription factor(s) through pharmaceutical approach. Data showed that the complete cDNA sequence was 1468bp long with a 789bp of open reading frame...
November 11, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27885744/glutathione-in-combination-with-trehalose-has-supplementary-beneficial-effects-on-cryopreserved-red-deer-cervus-elaphus-sperm
#20
Yan Wang, Shude Dong
OBJECTIVES: In this study, we evaluated the effects of glutathione in combination with trehalose addition to semen extenders on the quality parameters of frozen-thawed red deer (cervus elaphus) spermatozoa. METHOD OF STUDY: The semen samples collected from six mature red deer once a week were diluted with Tris-egg yolk-based extenders. The diluted semen samples were supplemented with glutathione (8 mmol L(-1) ) and or trehalose (5%, w/v), cryopreserved, thawed and then subjected to sperm quality parameter evaluation...
November 25, 2016: American Journal of Reproductive Immunology: AJRI
keyword
keyword
95875
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"