Effect of high thermal manipulations in early and late embryogenesis on growth of tibia and femur bones of broilers
Öz
The aim of this research was to determine the effects
of thermal manipulations early and late embryogenesis on growth of tibia and
femur bones of broilers. For control group eggs 37.5 oC and 55 %
humidity were applied on the
incubation during 19 days. Incubation temperature was increased to 41 oC
and humidity to 65 % for 3 hours on the 8th -10th days of
incubation during early embryogenesis. Similarly, incubation temperature was
increased to 41 oC and humidity to 65 % for 3 hours on the 16th-18th
days of incubation during late embryogenesis. Average tibia bone lengths were
determined as 97.57 mm, 99.08 mm and 100.25 mm for control, early and late
embryonic groups, respectively, and significant difference were determined
between the average values. Also, male broilers (100.27 mm) have higher tibia
bone length than females (97.66 mm). The differences between the groups in
point of femur bone length was significant, and the highest femur bone length
was in the late embryonic group (70.79 mm), the lowest femur bone length in the
control (68.93 mm) group.
Anahtar Kelimeler
Kaynakça
- Applegate, T.J., Lilburn, M.S. 2002. Growth of the femur and tibia of a commercial broiler line. Poult. Sci. 81,1289-1294.
- Badran, A,M,, Desoky, A,, Abou-Eita, E.M., Stino, F.K. 2012. Epigenetic thermal adaptation of chickens during late embryonic development. Egypt. Poult. Sci. 32, 675-689.
- Barreiro, F.R., Baraldi-Antoni, S.M., Do Amaral, L.A., Barbosa, J.C., Girardi, A.M., Pacheco, M.R., Amoroso, L. 2011. Determination of broiler femur parameters at different growth phases. Int. J. Poult. Sci. 10, 849-853.
- Birgul, O.B., Mutaf, S., Alkan, S. 2011. Farklı tünek sistemlerinin etlik piliclerde tibia ve femur kemiklerinin morfolojik ve kimyasal özelliklerine etkileri. Kafkas Univ. Vet. Fak. Derg. 17,773-779.
- Bruno, L.D.G., Furlan, R.L., Malheiros, E.B., Macari, M. 2000. Influence of early quantitative food restriction on long bone growth at different environmental temperatures in broiler chickens. Br. Poult. Sci. 41, 389-394.
- Bruno, L.D.G., Luquetti, B.C., Furlan, R.L, Macari, M. 2007. Influence of early qualitative feed restriction and environmental temperature on long bone development of broiler chickens. J. Therm. Biol. 32 349-354.
- Bruzual, J.J., Peak, S.D., Brake, J., Peebles, E.D. 2000. Effects of relative humidity during incubation on hatchability and body weight of broiler chicks from young breeder flocks. Poult. Sci. 79, 827-830.
- Curek, I,D. 2010. Genotip, yetistirme sistemi ve mevsimin Antalya kosullarinda etlik pilic refahına etkilerinin araştırılması. Doktora Tezi. Akdeniz Üniversitesi Fen Bilimleri Enstitüsü, 115 sayfa.
- Eriksen, M.S., Haug, A., Torjesen, P.A., Bakken, M. 2003. Prenatal exposure to corticosterone impairs embryonic develepment and increases fluctuating asymmetry in chickens (Gallus gallus domesticus). Br. Poult. Sci. 44, 690-697.
- Kocabagli, N. 2001.The effect of dietary phytase supplementation at different levels on tibial bone characteristics and strength in broilers. Turk. J. Anim. and Vet. Sci. 25,797-802. Leeson, S., Caston, L.J. 1993. Does envirenmental temperature influence body weight:shank length in Leghorn Pullets? J. App. Poult. Res. 2, 245-248.