The relationship between eggshell color, hatching traits, fertility, mortality, and some qualitative aspects of Japanese quail (Coturnix japonica) eggs [PDF]
Poultry Science, 2023 : Quail, one of the most important sources of meat and eggs, can aid in the reduction of the meat crisis if they are raised and cared for by small farmers.
Nora A. Ismael +7 more
doaj +4 more sources
Effect of translucency and eggshell color on broiler breeder egg hatchability and hatch chick weight. [PDF]
Poult Sci, 2023 A successful hatch has a considerable economic impact on all poultry companies. The aim of the current study was to describe the possible effects of shell translucency (T score) and coloration lightness (L* value) on shell thickness, hatchability, and chick weight. A total of 4,320 eggs from 4 commercial Ross 708 breeder flocks (50-55-wk old) were used.
Orellana L +13 more
europepmc +6 more sources
Integrated transcriptomic and metabolomic analysis reveals mechanisms of eggshell color variation in Pekin ducks [PDF]
Poultry ScienceGreen-shelled eggs are widely recognized for their high quality, nutritional value, and superior shell strength, making them highly attractive to consumers.
Longxin Wang +5 more
doaj +4 more sources
Could diffuse coevolution explain the generic eggshell color of the brown-headed cowbird? [PDF]
Curr Zool, 2021 Abstract The brown-headed cowbird (hereafter cowbird) is an avian brood parasite that produces an egg dissimilar to those produced by the majority of its diverse host community. The cowbird’s generic egg may result from a Jack-of-all-trades strategy; however, the evolutionary mechanisms that select for their generic eggs are unclear ...
Hanley D +2 more
europepmc +6 more sources
Eggshell color in brown-egg laying hens - a review. [PDF]
Poult Sci, 2015 The major pigment in eggshells of brown-egg laying hens is protoporphyrin IX, but traces of biliverdin and its zinc chelates are also present. The pigment appears to be synthesized in the shell gland. The protoporphyrin IX synthetic pathway is well defined, but precisely where and how it is synthesized in the shell gland of the brown-egg laying hen is ...
Samiullah S, Roberts JR, Chousalkar K.
europepmc +6 more sources
Refine localizations of functional variants affecting eggshell color of Lueyang black-boned chicken in the SLCO1B3 [PDF]
Poultry Science, 2023 : Table eggs with color-uniformity shell are visually attractive for consumers. Lueyang black-boned chicken (LBC) lays colorful eggs, which is undesirable for sale of table eggs, but provides a segregating population for mapping functional variants ...
Zhepeng Wang +4 more
doaj +4 more sources
Estimating the purebred-crossbred genetic correlation for uniformity of eggshell color in laying hens. [PDF]
Genet Sel Evol, 2016 Uniformity of eggs is an important aspect for retailers because consumers prefer homogeneous products. One of these characteristics is the color of the eggshell, especially for brown eggs. Existence of a genetic component in environmental variance would enable selection for uniformity of eggshell color.
Mulder HA, Visscher J, Fablet J.
europepmc +8 more sources
Impact of Eggshell Color Diversity on Hatchability, Translucency, and Quality Traits in Beijing-You Chicken Eggs [PDF]
AnimalsDue to the effects of pigment deposition and microstructure, the color of eggshells may influence the quality traits and hatchability of eggs. These traits are critical for breeding efficiency and economic outcomes in poultry production.
Hongchang Gu +11 more
doaj +3 more sources
Breed and feed affect amino acid contents of egg yolk and eggshell color in chickens. [PDF]
Poult Sci, 2020 Genetic and environmental factors regulate hen egg traits. To demonstrate the possibility of producing designer eggs through genetic and environmental factors, we investigated the effects of breed and feed on egg traits using 2 chicken breeds, Rhode Island Red (RIR) and Australorp (AUS), and 2 feeds, mixed feed and fermented feed.
Mori H, Takaya M, Nishimura K, Goto T.
europepmc +6 more sources
Relationship between plumage color and eggshell patterns with egg production and egg quality traits of Japanese quails [PDF]
Veterinary World, 2021 Aim: This study was conducted to identify the diversity of feather color and to determine the relationship between plumage color and egg yield as well as eggshell patterns and internal egg quality traits of Japanese quails.
Ly Thi Thu Lan +6 more
doaj +3 more sources