Vol. 9, Issue 10, Part C (2025)

This experiment assessed the effects of Short Periods of Incubation During Egg Storage (SPIDES), applied with or without egg turning, on the slaughter traits of broilers hatched from eggs stored for an extended period. A total of 750 hatching eggs obtained from 33.5-week-old breeder hens were randomly distributed into five treatment groups: T₁ (control, no SPIDES), T₂ (three SPIDES without turning), T₃ (three SPIDES with turning), T₄ (four SPIDES without turning), and T₅ (four SPIDES with turning). Eggs were maintained at a temperature of 17 °C and 75% relative humidity, while those subjected to SPIDES were periodically heated to 37.7 °C for three hours at five-day intervals. All eggs were stored for 21 days and transferred for incubation on the 22nd day. Among the treatments, T₅ exhibited the highest New York dressing yield (90.45%), dressed weight percentage (74.19%), ready-to-cook weight (79.78%) and liver weight percentage (2.91%). No significant differences were observed in the small intestine, gizzard, heart, breast, neck, ribs and back, thigh and drumstick weight percentage among the groups. However, T₂ (3 SPIDES without turning) had the highest wing weight percentage (12%) (p<0.05). These findings suggest that SPIDES, particularly with turning, enhances carcass yield parameters in broilers.