0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

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

E.R. Grela 1  ,  
K. Ognik 2,  
A. Czech 2,  
 
1
University of Life Sciences in Lublin, Institute of Animal Nutrition and Bromatology, Akademicka 13, 20-950 Lublin
2
University of Life Sciences in Lublin, Department of Biochemistry and Toxicology, Akademicka 13, 20-950 Lublin
J. Anim. Feed Sci. 2014;23(3):236–243
Publish date: 2014-08-20
KEYWORDS
ABSTRACT
The aim of this study, carried out on ISA Brown laying hens, was to determine the effect of dietary lucerne protein concentrate (LPC) on egg quality. The birds were allocated to three experimental groups, 30 birds each. The control group (C) was fed a standard feed mixture without the experimental additive. Diets of hens from groups D-1 and D-2 were supplemented with 1.5% and 3.0% of LPC, respectively, instead of soyabean meal. In the laying period, 40 eggs from each group were collected twice (week 33 and 53 of rearing) for evaluation of selected quality traits: specific weight of egg, eggshell colour, eggshell resistance, eggshell weight, egg yolk weight, egg yolk colour, thick albumen height, albumen quality, eggshell thickness, eggshell compactness (density), meat spots and blood spots. Egg yolks were analysed for contents of fat, total cholesterol and fatty acid composition, as well as for parameters of redox status (superoxide dismutase, catalase, hydrogen peroxides, malondialdehyde). The 1.5% and 3.0% additions of LPC increased the colour intensity of egg yolk, but at the same time, induced lipid peroxidation processes in it. The possible latter effect should be taken into account when intending to increase yolk colouration via LPC dietary supplementation. Our results show that addition of 1.5% LPC can be recommended in feed for laying hens.
CORRESPONDING AUTHOR
E.R. Grela   
University of Life Sciences in Lublin, Institute of Animal Nutrition and Bromatology, Akademicka 13, 20-950 Lublin
 
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ISSN:1230-1388