Results 61 to 70 of about 13,650 (237)

Water vapor conductance: a technique using eggshell fragments and relations with other parameters of eggshell

open access: yesRevista Brasileira de Zootecnia
The objective of this study was to evaluate a technique for quantifying eggshell conductance using shell fragments from hatched eggs. Additional objectives were to calculate the correlation between eggshell conductance, porosity, and thickness and ...
Itallo Conrado Sousa de Araújo   +5 more
doaj   +1 more source

A Review on Microreactor Design for Effective Fischer–Tropsch Process Intensification

open access: yesAdvanced Materials Technologies, EarlyView.
Design strategies for effective Fischer–Tropsch process intensification are summarized based on experimental and simulation experiences. Recommendations for catalyst loading of packed‐bed and wash‐coated microchannel, microtube, micromonolith, and microstructured reactors are discussed.
Yangjun Wei   +5 more
wiley   +1 more source

The Effects of Egg Shape Index on Egg Quality Traits of Guinea Fowl (Numida meleagris)

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2016
The aim of this study was to investigated the effects of the egg shape index on egg quality characteristics in Guinea fowl. For this, the eggs were classified in terms of egg shape index, as ≤ 75, < 76 -77 > and ≥ 78. A total of 100 Guinea fowl eggs were
Sezai Alkan   +3 more
doaj   +1 more source

Effects of Caffeine on Egg Quality and Performance of Laying Hens

open access: yesFrontiers in Veterinary Science, 2020
This study's objective was to determine the effects of caffeine intake at various levels, incorporated in the layers' food, on performance and egg quality of hens. A total of 576 hens, aged 56 weeks, were used.
Mailson da Silva Teixeira   +4 more
doaj   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

open access: yesAdvanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan   +20 more
wiley   +1 more source

Optimizing electron backscatter diffraction of carbonate biominerals—resin type and carbon coating [PDF]

open access: yes, 2009
Electron backscatter diffraction (EBSD) is becoming a widely used technique to determine crystallographic orientation in biogenic carbonates. Despite this use, there is little information available on preparation for the analysis of biogenic carbonates ...
Alberto Pérez-Huerta   +4 more
core   +1 more source

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke   +9 more
wiley   +1 more source

Egg Production and Quality of Magelang Duck Fed Diets Containing Different Ratio of Omega 3 : Omega 6 and Organic Zn [PDF]

open access: yes, 2013
The aims of this study were to determine the feeding effect of diets containing different ratio of ω-3 and ω-6 fatty acids and organic Zn on egg production and quality of Magelang duck.
Darmawan, A. (A)   +2 more
core  

The importance of microscopic examinations of eggshells: Discrimination of bioalteration and diagenetic overprints from biological features [PDF]

open access: yes, 2010
Although fossilization usually favors the preservation of calcium carbonate biominerals, diagenetic alterations might still produce erratic patterns that overprint the original biological structures. This investigation tries to discriminate in the fossil
Buscalioni, A.D.   +2 more
core   +2 more sources

A comprehensive embryonic staging series of the turtle Trachemys scripta

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Christina M. Noravian   +6 more
wiley   +1 more source

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