Results 1 to 10 of about 10,438 (251)

Polymorphism of the SCNN1g Gene and its Association with Eggshell Quality [PDF]

open access: yesPoultry Science Journal, 2017
Eggshell quality is the main trait to assess egg quality. Marker assisted selection can be used to improve this trait. During eggshell formation, a mass of inorganic minerals is deposited. The Sodium Channel (SCNN1) gene family plays an essential role in
Kheirkhah Z   +5 more
doaj   +2 more sources

Combined Effect of Genotype, Housing System, and Calcium on Performance and Eggshell Quality of Laying Hens

open access: yesAnimals, 2020
The objective of this study was to evaluate hen performance and eggshell quality response to genotype, housing system, and feed calcium (Ca) level. For this purpose, an experiment was conducted on 360 laying hens of ISA Brown, Bovans Brown (commercial ...
Mohamed Ketta   +3 more
doaj   +2 more sources

The partial replacement of sodium chloride with sodium bicarbonate or sodium sulfate in laying hen diets improved laying performance, and eggshell quality and ultrastructure

open access: yesPoultry Science, 2021
: This study investigated the effects of dietary chloride (Cl) reduction on laying performance and eggshell quality by substitution of sodium bicarbonate (NaHCO3) or sodium sulfate (Na2SO4) for part of dietary sodium chloride (NaCl), and further explored
Yu Fu   +5 more
doaj   +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

The Effect of Eggshell Quality on Hatchability of Pure Chicken Breeds

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Hatchability is affected by a variety of factors. Eggshell quality plays very important role among these factors. In this work we analysed eggshell quality, hatchability and embryonic mortality of pure chicken breeds New Hampshire, Oravka, Plymouth Rock,
Cyril Hrnčár   +2 more
doaj  

The effect of breed and age on the gloss of chicken eggshells

open access: yesPoultry Science, 2020
The monitoring of eggshell quality is important mainly in terms of production economy. Eggshell appearance is one of the most characteristics, influencing the purchasing behavior of consumers.
Quanlin Li   +7 more
doaj   +1 more source

Investigating the Effects of Using of Biochar as a Replacement for Minerals Premix in Layers Diet on Physical and Mechanical Properties of Their Egg Shells [PDF]

open access: yesBiomechanism and Bioenergy Research, 2022
Biochar is a mineral compound with a low cost of production. This compound can also be used as a fertilizer in agriculture to help plants grow faster and is a main source of bioenergy for heating and cooking. The goal of this study was to investigate how
Fatemeh Ahmadi   +3 more
doaj   +1 more source

Response of three laying hen genotypes to two feed calcium levels

open access: yesCzech Journal of Animal Science, 2019
The present study aimed to evaluate the effect of two dietary Ca levels (3.00% vs 3.50%) in three hen genotypes (ISA Brown, Bovans Brown and Moravia BSL) on their laying performance and quality of their eggs.
Mohamed Ketta   +2 more
doaj   +1 more source

Effects of Selenium Yeast on Egg Quality, Plasma Antioxidants, Selenium Deposition and Eggshell Formation in Aged Laying Hens

open access: yesAnimals, 2023
Internal egg and eggshell quality are often deteriorated in aging laying hens, which causes huge economic losses in the poultry industry. Selenium yeast (SY), as an organic food additive, is utilized to enhance laying performance and egg quality.
Zhexi Liu   +10 more
doaj   +1 more source

Dietary supplementation with sodium bicarbonate or sodium sulfate affects eggshell quality by altering ultrastructure and components in laying hens

open access: yesAnimal, 2021
Dietary sodium (Na) levels were related to the content of the eggshell matrix. We therefore speculated that dietary Na supplementation as sodium bicarbonate (NaHCO3) or sodium sulfate (Na2SO4) may improve eggshell quality. Additionally, dietary NaHCO3 or
Y. Fu   +5 more
doaj   +1 more source

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