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
 
 

Egg specific gravity in improvement of hatchability in laying hens

G. Zięba 1,  
A. Witkowski 1,  
 
1
University of Life Sciences in Lublin, Chair for Biological Bases of Animal Production, Akademicka 13, 20-950 Lublin, Poland
2
Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Jastrzębiec, 05-552 Wólka Kosowska, Poland
J. Anim. Feed Sci. 2011;20(1):84–92
Publish date: 2011-03-12
KEYWORDS
ABSTRACT
The aim of the study was to assess the suitability of egg specific gravity (ESG) as an accompanying trait in estimation of the birds’ breeding value for hatchability. The study involved 3 generations of performance recorded laying hens Rhode Island White (RIW) and Rhode Island Red (RIR). The breeding merit for number of chicks hatched from eggs laid (NCH) was estimated with three different model variants which differed with regard to the information accounted for: 1. all the standard information plus post factum hatchability record and ESG, 2. no post factum hatchability data on the last generation but ESG present, and 3. no hatchability data on last generation nor ESG. In both lines a high positive correlation between the egg specific gravity and hatchability was observed (0.47 to 0.66). In RIR, when ESG was included in the left-hand-side, a significantly higher concordance of birds’ NCH breeding value ranking between 2. and 1. than between 3. and 1. were observed.
CORRESPONDING AUTHOR
I. Rozempolska-Rucińska   
University of Life Sciences in Lublin, Chair for Biological Bases of Animal Production, Akademicka 13, 20-950 Lublin, Poland
 
CITATIONS (2):
1. Ultrasonic eggshell thickness measurement for selection of layers
Lucyna Kibala, Iwona Rozempolska-Rucinska, Kornel Kasperek, Grzegorz Zieba, Marek Lukaszewicz
Poultry Science
2. Eggshell Qualities as Indicative of Eggshell Strength for Layer Selection
L Kibala, I Rozempolska-Rucinska, K Kasperek, G Zieba, M Lukaszewicz
Revista Brasileira de Ciência Avícola
ISSN:1230-1388