The main purpose of the study was to determine the effect of
egg mass and egg weight groups (group I eggs under 160 g, group II eggs160 g to
180 g and group III eggs over 180 g) on incubation results, loss of egg weight
(moist) during incubation, gosling hatchability, and the relative share of the
gosling in the egg mass. A well fertilized egg is an embryo “package” with all
the necessary nutrients that facilitate its development until it is hatched and
for a few days after hatching. The results of poultry offspring production,
i.e., poultry embryo development, depend during its embryonic development, –
apart from its genetic basis, – on several non-genetic factors. Eggs with mass
between 160 g and 180 g (group II) demonstrated the highest fertilization rate
(91.28%) and the highest hatchability out of the number of incubated eggs
(83.14%), while the eggs from the group I (lighter than 160 g) showed the
highest number of gosling hatchability out of the number of fertilized eggs
(91.08%). The lowest embryo mortality was that of group I (5.17% and 6.06%), while
the highest is reported for group III (14.29% and 16.67%). The lowest relative
loss of egg mass (moist) by day 25 of the incubation period was established for
the group I eggs (10.98%), and the highest for the group III (11.71%), with a
statistically significant (P<0.01) difference of -0.73 %. Other differences
were not statistically significant (P>0.05). The gosling percentage in the
egg mass was significantly higher (P<0.001) in the group III of incubated
eggs (67.81%) than in group II (66.61%) and group I (65.24%). The relative
gosling percentage according to the egg mass grew with the increase of the egg
mass, which to a certain extent agreed with our findings, except that these
authors reported a considerably lower gosling percentage.
Author(s) Details:
Milena Milojevic,
Faculty of Agriculture, University of Belgrade, Serbia.
Sreten
Mitrovic,
Faculty
of Agriculture, University of Belgrade, Serbia.
Maja Radoicic Dimitrijevic,
Faculty of Agriculture, University of Belgrade, Serbia.
Vera Rajicic,
Faculty of Agriculture, University of Nis, Serbia.
Vladan Dermanovic,
Faculty
of Agriculture, University of Belgrade, Serbia.
Please see the link here: https://stm.bookpi.org/IBS-V2/article/view/14132
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