Embryo dysplasia in obese broiler breeders reduces hatchability: Comparison of high and low abdominal fat lines [PDF]
Poultry ScienceHatchability is a key indicator of reproductive performance in broiler breeders. Obesity in broiler breeder hens results in a significant reduction in hatchability. Maternal obesity can impair embryonic development in mammals.
Haixu Jiang +9 more
doaj +2 more sources
Shell gland RNA-seq reveals key genes regulating eggshell quality and potential links between eggshell quality and hatchability across different laying stages [PDF]
Poultry ScienceThe quality of hatching eggs and their hatchability are key factors affecting the production efficiency of breeding flocks. The quality of hatching eggs is commonly graded directly based on the eggshell quality.
Chenxi Zhang +11 more
doaj +2 more sources
Field Study on Broiler Eggs Hatchability
Poultry Science, 2008 The aim of this research was to explore factors that are related with hatchability in the field. Data from 3 Dutch hatcheries for the years 2004, 2005, and 2006 were analyzed using a random regression model with the method of restricted maximum likelihood. In total, 24,234 batches of 724,750,444 eggs, originating from 511 breeder flocks, were included.
R B M Huirne
exaly +3 more sources
Influence of eggshell ultrastructural organization on hatchability
Poultry Science, 2013 Eggshell quality is associated with hatchability, and ultrastructural organization is an important eggshell quality parameter. To the determine the relationship of shell ultrastructural properties with hatchability, we measured the effect of eggshell thickness, mammillary layer thickness, and the average size of mammillary cones on hatchability.
X Y Zhao, C F Li
exaly +3 more sources
INFLUENCE OF BODY WEIGHT SELECTION FOR GIMMIZAH CHICKENS ON SOME GENETIC PARAMETERS RELATED TO HATCH [PDF]
Egyptian Poultry Science, 2021 The present experiment was carried out for evaluation the influence of body weight selection at 12 –wk of age for Gimmizah chickens on hatching traits besides same genetic and phenotypic parameters related to it.
Nabile Boutrous
doaj +1 more source
Indian Journal of Animal Sciences, 2023 The present study assessed the effect of genotype, season and period on fertility and hatchability of chicken eggs during five year period (April 2017 to March 2022).
KRISHANENDER DINESH +5 more
doaj +1 more source
Estimate the contribution of incubation parameters influence egg hatchability using multiple linear regression analysis [PDF]
Veterinary World, 2016 Aim: This research was conducted to determine the most affecting parameters on hatchability of indigenous and improved local chickens’ eggs. Materials and Methods: Five parameters were studied (fertility, early and late embryonic mortalities, shape ...
Mohamed H. Khalil +4 more
doaj +1 more source
Poultry Science, 2021 : In this study, a data driven approach was used by applying linear regression and machine learning methods to understand animal related and environmental factors affecting hatchability.
I. Bouba +4 more
doaj +1 more source
Effect of the Line and Age of Female Broiler Breeder on Hatchability Performance of Eggs [PDF]
Brazilian Journal of Poultry Science, 2023 An experiment was conducted to assess how hatchability performance of eggs is affected by line and age of female broiler breeders. Response variables analyzed were hatchability, infertility, pipping (i.e., pipped shell but not emerged), embryonic ...
OFP Rebolledo +5 more
doaj +1 more source
Study on the Efficient Methods for Chicken Eggshell windowing and the Factors Affecting the Hatchability [PDF]
Brazilian Journal of Poultry Science, 2020 In order to find out the main factors influenced the hatchability and improve the hatchability of the windowed chicken eggs at stage X, several experiments were made on the basis of the former patent of eggshell windowing methods on equatorial plane ...
HF Yan +6 more
doaj +2 more sources