@article{
author = "Ušćebrka, Gordana and Žikić, Dragan and Stojanović, Slobodan and Miler, Marko and Jarić, Ivana and Ajdžanović, Vladimir and Milošević, Verica",
year = "2018",
abstract = "One of the goals ofrnodern poultry production is improving the quality and quantity of
broiler meat. Recent research is directed to find the relation between incubation factors and
muscle development, which can affect on meat characteristics. The aim of this study was
to examine the influence of increased incubation temperature on development of breast
muscles of broilers in days after hatching. Eight hundred broiler eggs (Ross 308) were
divided in four equal groups (200 per each group) and placed in four incubators. Group
A represents control group with incubation temperature 378°C. In groups B, C, D during
the 16‘“, 17‘“ and 18th day of incubation temperature was increased to 38.5°C, 395°C and
41°C reSpectively, for 3 hours each day. On the 7‘1‘, as well as on the 14‘“ day after hatching,
10 chickens from each group were sacrificed. Samples of breast muscle (M pectoralis
superficialis) were taken for histological examination of diameter of muscle cells, volume
density of connective tissue in the muscle and nucleo-cytoplasmic ratio of muscle cells.
Measurements showed that diameter of breast muscle cells on 7L11 day after hatching in
treated groups was decreased in average by 6.36pm compared to control group, while on
14m day after hatching in group in which incubation temperature was increased to 41°C,
it was decreased in average by 5.84pm compared to other groups. In all groups, on 14‘h
day after hatching, diameter of breast muscle cells was increased in average by 6.71pm,
while nucleo—cytoplasmic ratio of breast muscle cells was decreased in average by 0.035,
compared to 7”h day after hatching. Lower diameter of breast muscle cells in treated groups
on 7‘“ day after hatching can be explained by higher proliferation of myoblasts due to
applied treatments. During the proliferation, growth of cells is reduced, which is reflected
on lower diameter of muscle cells on 7"1 day after hatching. It can be assumed that increased
temperature during incubation affect on increased growth of muscle cells in postnatal
period of development, which is in agreement with approximately equal diameters on 14*
day after hatching between control group and groups in which incubation temperature was
increased to 385°C and 395°C. It seems that increased temperature on 41"C had negative
effect on growth and development of muscle cells, which results in decreased diameter of
breast muscle cells on 14‘h day afier hatching in group which incubation temperature was
increased to 41°C.",
publisher = "Skopje: Faculty of Veterinary Medicine",
journal = "Book of Abstracts: 5th International Vet-Istanbul Group Congress and 8th International Scientific Meeting: Days of Veterinary Medicine 2018; 2018 Sep 23-27; Ohrid; North Macedonia",
title = "Influence of Increased Incubation Temperature on Breast Muscle Development of Broilers After Hatching",
pages = "146-146",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_6038"
}
