XIV International Agriculture Symposium, Jahorina, Bosna-Hersek, 5 - 08 Ekim 2023, ss.1010-1014
This
study was aimed to examine the effect of in
ovo α-tocopherol injection into yolk sac on the 7th day of embryonic age on
the blood serum lipid profile of broiler chicks at 72th hour after
hatching. The trial used total of 160 hatching eggs was conducted with
non-injected group (control) and injection group, which was injected 37.5 mg of
α -tocopherol (250 µl vitamin E) into yolk sac on day 7 of incubation. Total
cholesterol, triglyceride, high density lipoprotein cholesterol (HDL), low
density lipoprotein cholesterol (LDL) and very low density lipoprotein
cholesterol (VLDL) levels were measured in serum obtained from blood samples of
10 male and female chicks at the 72th hour post-hatching period. In ovo α-tocopherol injection did not
affect serum lipid profile of broiler chicks on day 3 of post-hatching stage.
However, the significant interactions between in ovo α-tocopherol administration and gender on serum total
cholesterol, LDL and HDL were determined. Serum total cholesterol level of
female chicks in the α-tocopherol group was higher than control group (P=0.011).
Serum LDL level of the female chicks was higher than male chicks in the
α-tocopherol group and female chicks in the control group (P=0.023). The reason
of significant interaction was that female chicks had the lowest serum HDL
concentration compared to male chicks in the control group (P=0.039). Results
of the study indicated that in ovo
α-tocopherol administration at pre-hatching stage can modify serum total cholesterol
and LDL concentrations of female broiler chicks at early post-hatching stage.