Results 31 to 40 of about 22,489 (252)

Using Principal Component Analysis to Characterize Egg Components in two Waterfowl Species [PDF]

Journal of Animal and Poultry Production, 2019
The present study was done in the laboratories of animal science department that belongs Sulaimani University. During June 2017 to February 2018, a total of (91) duck and (98) geese eggs were collecting from local farms in Sulaimani province to evaluate ...
Mohammed Mohammed, Rozhgar Saeed, Shahla Kirkuk, Shilan Akram, Ahmed Shaker, Questan Amin   +5 more
doaj   +1 more source

Effects of Egg's Weight on Egg Quality Traits of the Potchefstroom Koekoek Chicken Genotype

KnE Life Sciences, 2022
Egg is a reproduction tool for chickens and valuable food source for humans. The objective of this study was to examine the effect of egg weight (EW) on egg quality traits such as egg length (EL), egg diameter (ED), yolk weight (YW), albumen weight (AW), shell weight (SW), shell index (SI), yolk ratio (YR), albumen ratio (AR) and shell ratio (SR ...
TL Tyasi, LT Rashijane, K Mokoena, KM Molabe, MC Mathapo, RV Hlokoe, LJ Selala, M Maswana, L Bila   +8 more
openaire   +1 more source

Effects of Different Forced Molting Methods on Egg Production and Egg Quality Traits

Turkish Journal of Veterinary & Animal Sciences, 1996
This study was conducted to compare fasting and high dietary zinc as procedures to induce a forced rest of laying lens. Roos Brown laying hens in sixty-eight weeks of age were used for the experiment.-Daily light was used in the molting period. The hens in the first three programs were fasted (for feed and water) and in the fourth and fifth groups ...
Sarica M., Öztürk E., Karaçay N.
openaire   +2 more sources

The Impact of Laying Hen Age, Egg-Laying Time, Cage Tier, and Cage Direction on Egg Quality Traits in Hens in an Enriched Cage System [PDF]

Brazilian Journal of Poultry Science
This study determined the effect of layer age, egg-laying time, cage tier, and cage direction (outward-inward) on egg quality parameters of commercial layer chickens reared in enriched cages. A total of 944 layers (approximately 100 eggs every four weeks,
A Şekeroğlu, YE Şentürk, B Tainika, M Duman, A Akyol   +4 more
doaj   +1 more source

Quality assessment of chukar partridge (A. chukar) eggs during different conditions (time, turning and position) of storage

Journal of Animal Science and Technology, 2022
The present study was conducted with the aim of investigating the effect of storage length, turning frequency and egg position on internal quality traits of chukar eggs obtained from 56-week-old chukar partridges ...
Mustafa Çam, Zahit Kutalmış Kaya, Serdar Güler, Halil Harman, Kemal Kırıkçı   +4 more
doaj   +1 more source

Egg Quality Effect by Breeder Ages and Egg Storage [PDF]

Journal of Animal and Poultry Production, 2020
The study was conducted to investigate the effects of age of broiler breeder (30 and 45 weeks), storage period (2, 4, 6 and 8 days) and their interactions on egg quality traits of the Ross-308 broiler breeder eggs.
Hemin Mohammed
doaj   +1 more source

No evidence that selection for egg production persistency causes loss of bone quality in laying hens

Genetics Selection Evolution, 2021
Background The physiological adaptations that have evolved for egg laying make hens susceptible to bone fractures and keel bone damage. In modern laying hen breeds, longer periods of egg laying could result in a greater risk of poor bone quality, and ...
Ian C. Dunn, Dirk-Jan De Koning, Heather A. McCormack, Robert H. Fleming, Peter W. Wilson, Björn Andersson, Matthias Schmutz, Cristina Benavides, Nazaret Dominguez-Gasca, Estefania Sanchez-Rodriguez, Alejandro B. Rodriguez-Navarro   +10 more
doaj   +1 more source

Comparative production performance and egg quality of Kuzi Ducks (Anas platyrhynchos) and its crosses with Khaki Campbell

Indian Journal of Animal Sciences, 2023
Comparative performance of Kuzi ducks and its two crossbreds with Khaki Campbell, viz. Kuzi × Khaki Campbell (DK) and Khaki Campbell × Kuzi (KD) were carried out in respect to various production, egg weight, age at different production level and egg ...
M K PADHI, S C GIRI, S K SAHOO
doaj   +1 more source

Mapping of quantitative trait loci affecting quality and production traits in egg layers

Poultry Science, 2002
A mapping population segregating for egg quality traits was created by a line cross between two egg layer lines and screened by a genome scan. The F2 generation consisted of 307 hens, which were scored for egg quality and production traits. The mapping population was genotyped for 99 microsatellite loci, spanning nine macrochromosomes and five small ...
Tuiskula-Haavisto, Maria, Honkatukia, Mervi, Vilkki, Johanna, de Koning, Dirk-Jan, Schulman, Nina F., Mäki-Tanila, Asko   +5 more
openaire   +3 more sources

The Heritabilities of Seasonally Determined Egg Quality Traits

Poultry Science, 1961
Abstract During four generations, 1954 through 1957, of the Pennsylvania random-bred flock of S.C.W. Leghorns four egg quality characteristics were assessed at different periods throughout the laying year. Egg weight, Haugh units and shell thickness were determined for the full four year period but egg shape index (W/L × 100) measurements were ...
Amp F. Hicks, E.G. Buss, A.J.G. Maw
openaire   +1 more source