scholarly journals Intermittent thermal manipulations of broiler embryos during late incubation and their immediate effect on the embryonic development and hatching process

2011 ◽  
Vol 90 (6) ◽  
pp. 1302-1312 ◽  
Author(s):  
H. Willemsen ◽  
Y. Li ◽  
E. Willems ◽  
L. Franssens ◽  
Y. Wang ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Hatching Process

Comparison of a modern broiler and layer strain during embryonic development and the hatching process

2008 ◽  
Vol 49 (5) ◽  
pp. 574-582 ◽  
Author(s):  
N. Everaert ◽  
H. Willemsen ◽  
L. De Smit ◽  
A. Witters ◽  
J. De Baerdemaeker ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Hatching Process

scholarly journals High- and low-temperature manipulation during late incubation: Effects on embryonic development, the hatching process, and metabolism in broilers

2010 ◽  
Vol 89 (12) ◽  
pp. 2678-2690 ◽  
Author(s):  
H. Willemsen ◽  
B. Kamers ◽  
F. Dahlke ◽  
H. Han ◽  
Z. Song ◽  
...  
Keyword(s):  
Low Temperature ◽  
Embryonic Development ◽  
Hatching Process ◽  
Temperature Manipulation

scholarly journals PENGARUH BOBOT TELUR TETAS ITIK TERHADAP PERKEMBANGAN EMBRIO, FERTILITAS DAN BOBOT TETAS

ZOOTEC ◽  
2016 ◽  
Vol 37 (1) ◽  
pp. 96
Author(s):  
Sarini Paputungan ◽  
Lucia J. Lambey ◽  
Linda S. Tangkau ◽  
Jaqualine Laihad
Keyword(s):  
Embryonic Development ◽  
Embryo Development ◽  
Design Method ◽  
Good Condition ◽  
Egg Weight ◽  
Randomized Design ◽  
Hatching Process ◽  
Duck Egg ◽  
Egg Fertility

EFFECT OF DUCK EGG WEIGHT ON FERTILITY, EMBRYO DEVELOPMENT AND HATCHING WEIGHT OF DAY OLD DUCK. This study was done to evaluate embryonic development for determination of egg fertility and hatching weight of day old duck (DOD). This study involved 160 eggs of duck with the average egg weight (EW) classified into 55g ≤  EW < 60g, 61g ≤ EW < 65g, 65g ≤ EW < 70g and 71g ≤ EW < 75g. Data collection was conducted over 28 days, as long as the period of hatching process. The design method used in this study was completely randomized design. Existing data were analyzed using analysis of variance. Treatments in this study were 4 treatments and 4 replications at each treatment. The variables measured were the percentage of egg fertility, embryo development and hatching weight. Results showed that duck embryo development during the hatching process was in good condition process. The results of variance analysis showed that treatments of egg weight did not affect significantly the percentages of egg fertility. The percentages of fertility were ranging between 85 – 95%. Hatching weights were ranging between 31g – 51g per DOD. Based on the results of this study, it can be concluded that egg weight had no effect on the process of embryonic development and fertility, except those for the hatching weight of DOD. Key words: Duck egg weight, embryonic development, fertility, hatching weight.

Interaction between ascites susceptibility and CO during the second half of incubation of two broiler lines. Effect on embryonic development and hatching process

2010 ◽  
Vol 51 (3) ◽  
pp. 335-343 ◽  
Author(s):  
N. Everaert ◽  
M. Debonne ◽  
H. Willemsen ◽  
A. Witters ◽  
B. Kamers ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Hatching Process

Live Confocal Analysis of Fertilization and Early Development

2001 ◽  
Vol 7 (S2) ◽  
pp. 1012-1013
Author(s):  
Uyen Tram ◽  
William Sullivan
Keyword(s):  
Drosophila Melanogaster ◽  
Embryonic Development ◽  
Real Time ◽  
Early Development ◽  
Fluorescent Probes ◽  
Primary Defect ◽  
Fluorescent Analysis ◽  
Dynamic Event ◽  
Enormous Amount ◽  
Fluorescent Studies

Embryonic development is a dynamic event and is best studied in live animals in real time. Much of our knowledge of the early events of embryogenesis, however, comes from immunofluourescent analysis of fixed embryos. While these studies provide an enormous amount of information about the organization of different structures during development, they can give only a static glimpse of a very dynamic event. More recently real-time fluorescent studies of living embryos have become much more routine and have given new insights to how different structures and organelles (chromosomes, centrosomes, cytoskeleton, etc.) are coordinately regulated. This is in large part due to the development of commercially available fluorescent probes, GFP technology, and newly developed sensitive fluorescent microscopes. For example, live confocal fluorescent analysis proved essential in determining the primary defect in mutations that disrupt early nuclear divisions in Drosophila melanogaster. For organisms in which GPF transgenics is not available, fluorescent probes that label DNA, microtubules, and actin are available for microinjection.

ADHD therapy with methylphenidate in mothers – a danger for embryonic development?

2014 ◽  
Vol 47 (06) ◽  
Author(s):  
N Bergemann ◽  
K Boyle ◽  
WE Paulus
Keyword(s):  
Embryonic Development
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