scholarly journals Relationships Between Egg Weight and Albumen Height in Quails and Investigating the Validity of Commonly Used Quality Measurements

2020 ◽  
Author(s):  
Sedat AKTAN
Keyword(s):  
Egg Weight ◽  
Quality Measurements

scholarly journals Effects of Genotype, Age and Their Interaction on Egg Quality in Brown-Egg Laying Hens

2009 ◽  
Vol 78 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Lukáš Zita ◽  
Eva Tůmová ◽  
Ladislav Štolc
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Quality Characteristics ◽  
Egg Laying ◽  
Eggshell Thickness ◽  
Egg Weight ◽  
Eggshell Quality ◽  
Ad Libitum ◽  
Quality Measurements

The experiment compared the effects of strain and age on egg quality characteristics in ISA Brown, Hisex Brown and Moravia BSL brown-egg laying hens. One hundred and eight ISA Brown hens, forty-five Hisex Brown and forty-five Moravia BSL 20 to 60 weeks old were housed in conventional cages (550 cm2 per hen). Feed and water were available ad libitum. Eggs were sampled at 21-day intervals, every collecting week 150 eggs per genotype in three age periods, from 20 to 26 weeks, 37 to 43 weeks and 54 to 60 weeks of age. A total of 4,050 eggs were examined. Egg quality characteristics were affected by genotype and age. Egg weight, yolk weight and percentage, Haugh Units increased with the hens’ age in all genotypes, but albumen and eggshell percentage decreased, eggshell thickness and strength improved with age. The highest egg weight (65.3 g) and yolk quality (yolk index 45.1%) were found in Moravia BSL at the end of the experiment. In contrast, the best albumen quality (albumen percentage 60.0) values were in Hisex Brown and the eggshell quality measurements (eggshell thickness 0.38 mm) were higher in ISA Brown.

Power quality measurements near DER and disturbing loads

2011 ◽  
pp. 124-129
Author(s):  
M. Van Lumig ◽  
S. Bhattacharyya ◽  
J.F.G. Cobben ◽  
W.L. Kling
Keyword(s):  
Power Quality ◽  
Quality Measurements

First flush effects in an urban catchment area in Aalborg

1998 ◽  
Vol 37 (1) ◽  
pp. 251-257 ◽  
Author(s):  
Torben Larsen ◽  
Kirsten Broch ◽  
Margit Riis Andersen
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
Quality Parameters ◽  
Average Concentration ◽  
First Flush ◽  
Storm Events ◽  
Urban Catchment ◽  
Discharge Measurements ◽  
Quality Measurements

The paper describes the results of measurements from a 2 year period on a 95 hectare urban catchment in Aalborg, Denmark. The results of the rain/discharge measurements include 160 storm events corresponding to an accumulated rain depth of totally 753 mm. The water quality measurements include 15 events with time series of concentration of SS, COD, BOD, total nitrogen and total phosphorus. The quality parameters showed significant first flush effects. The paper discusses whether either the event average concentration or the accumulated event mass is the most appropriate way to characterize the quality of the outflow.

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