Как VEGA BilePro помогает слоям восстанавливаться после иммунного стресса
Bile Acid Supplementation Significantly Reduces Death and Culling and Broken Egg Rate in Layers Under Immune Stress
Trial Background
In March 2025, a commercial layer operation in Taiyuan, China, experienced a significant immune stress response following routine vaccination. The flock consisted of 76,500 Jingfen No.6 hens at peak production (412 days of age).
After receiving Newcastle and infectious bronchitis vaccines on March 28, the flock exhibited:
A sharp rise in daily death and culling, increasing from 12 birds/day to over 25–30 birds/day
A drop in laying rate (%), from over 90% to 85%, with no recovery over the following 8 weeks
On May 22, the farm initiated a nutritional intervention using VEGA BilePro, a concentrated bile acid supplement, to mitigate ongoing stress and production losses.
Intervention Protocol
Product: VEGA BilePro (bile acid-based supplement)
Inclusion rate: 300g per metric ton of feed
Trial duration: May 22 – June 4, 2025 (2 weeks)
Objective: To assess the impact of BilePro on flock health recovery, egg production, and egg quality during stress recovery
Comparative Data Analysis
Key Observations
Death and Culling:
The total number dropped by 38.3%, indicating a rapid improvement in overall flock health and stress recovery.Broken Egg Rate:
A 28.6% decrease in the number of broken eggs suggests improved eggshell quality and intestinal function.Egg Weights:
Both average egg weight (g) and big egg weight (g) remained stable, indicating that BilePro supplementation maintained product standards.Laying Rate:
A slight decline of 1.2% was observed. Given the ongoing immune stress response, this is within the expected range. Further evaluation over time is recommended.
Conclusion
This field trial from Taiyuan, China, demonstrates that VEGA BilePro is an effective nutritional tool for mitigating vaccine-induced immune stress in commercial layer hens. Over a two-week period:
Death and culling decreased by 38.3%
Broken egg rate reduced by 28.6%
Egg weights remained stable
Laying rate showed minimal disruption
Bile acid supplementation provides a targeted strategy to help flocks recover faster from immune stress while maintaining production performance and product quality.
