Production, Quality and Hatchability of Eggs from Hens Fed Monensin

Quality assessment of eggs from laying hens fed a mixture with lucerne protein concentrate

Altered yolk structure and reduced hatchability of eggs from birds fed single doses of petroleum oils.

Yolk deposited by Japanese quail was abnormal for 24 hours after the oral administration of a single capsule containing 200 milligrams of bunker C oil. Both the structure and the staining properties of the yolk were affected. Fewer eggs were laid during the 4 days after dosing, compared to controls, and hatchability was drastically reduced. Hatchability returned to normal in 4 days. Three other...

Influences of Different Sources of Natural Pigments on the Color and Quality of Eggs from Hens Fed a Wheat-Based Diet

This experiment was conducted to evaluate effects of different sources of natural pigments on yolk color and laying hen performance. A completely randomized design with six treatments and six replicates was used.The six experimental treatments were: a control diet containing yellow corn grain, a reference diet containing wheat and barley grain instead of corn; a red pepper diet composed of refe...

The Effect of Eggshell Ultrastructure on Hatchability Percentage of Eggs Laid from Naked Neck, Frizzled and Normally Feathered Hens

This experiment was designed to evaluate the effect of naked neck (Na) and frizzle (F) genes on eggshell ultrastructure at different intervals of incubation period. 81 eggshell samples (9 samples/ genotypes/ incubation studied intervals) were taken before incubation period, at 12 days of incubation period and after hatching. Before incubation period, the present results showed that the presence...

Eggs weight of Japanese quail vs. eggs quality after storage time and hatchability results

The aim of the performed investigations was to compare eggs of Japanese quail layers of different weights with regard to their shape, selected traits of the content following various times of their storage as well as the results of hatchability and body weight of one-day old chicks. Hatching eggs were divided into four groups: group S – up to 10.50 g, group M – from 10.51 to 11.50 g, group L – ...