Fatting parameters after duck egg exposure to γ-radiation

Area of Science:

• Animal Science
• Radiation Biology
• Poultry Science

Background:

• Radiation hormesis is a phenomenon where low doses of radiation can stimulate biological processes.
• Peking ducks (Cherry Valley SM3 medium) are a commercially important hybrid known for rapid growth and feed efficiency.
• Understanding radiation effects on poultry is crucial for optimizing production and animal welfare.

Purpose of the Study:

• To investigate the effects of gamma radiation (0.06–2.00 Gy) on the growth characteristics of Peking ducks.
• To assess the phenomenon of radiation hormesis in poultry.
• To determine the impact of pre-incubation radiation exposure on duck embryo development and post-hatch performance.

Main Methods:

• Hatching duck eggs were exposed to varying doses of gamma radiation (0.06–2.00 Gy).
• Eggs were incubated under standard artificial incubation conditions.
• Growth characteristics, plasma phosphorus levels, hemoglobin, and drake weight were measured post-hatch.

Main Results:

• Hatching rates (85.5%–92.6%) were not significantly influenced by radiation dose, but by parent stock management.
• Duck embryos showed resilience, with no damage observed even at 2 Gy.
• A significant dose-dependent drop in plasma phosphorus was observed (r = -0.965).
• The 1 Gy dose group exhibited the highest mean corpuscular hemoglobin, combined hemoglobin, and drake weight.

Conclusions:

• Pre-incubation gamma radiation exposure at doses up to 2 Gy does not harm Peking duck embryos.
• Radiation hormesis may positively influence specific growth parameters in Peking ducks at a 1 Gy dose.
• Plasma phosphorus levels are sensitive to radiation dose, indicating a potential metabolic effect.