Case Study: Bile Acids Improve Egg Production by 3.57%-7.71% in 60,000 Late-Stage Layers
Author：Lachance
Time：2026-06-10
Hits：
To investigate the effects of dietary bile acids supplementation on the health and production performance of laying hens.Two poultry houses with similar ages (50 weeks) and identical production performance within the same production base were selected as experimental samples. The environmental conditions (temperature, humidity, density, feed used, etc.) in both houses were maintained at the same level. The control group consisted of 30,000 hens, and the experimental group consisted of 30,000 hens.The experimental phase started on April 22, 2021, and concluded on May 6, 2021, lasting for a total of 15 days. Ad libitum feeding and watering were ensured daily. The experimental group was fed the basal diet supplemented with bile acids (30%) at a dosage of 1 kg/t for the first 5 days, and 500 g/t for the remaining 10 days. Data collection for both the experimental and control groups started on April 10 and ended on May 18, serving as reference data for a longitudinal comparison of the impacts on production performance before and after the use of bile acids.The basal diet utilized a formulation structure primarily composed of soybean meal and corn. Nutritional indicators were set according to the recommendations of the breeding manual and specific farming conditions.During this experimental phase, feeding and management were strictly conducted in accordance with the breeding manual and the management procedures of the experimental site. This mainly included entry and house disinfection procedures, lighting programs, routine in-house disinfection procedures, feeding protocols, temperature control programs, and manure removal procedures. Indicators such as egg count, feed intake, and mortality rate were recorded daily.5. Main Evaluation IndicatorsLaying rate, daily feed intake, average daily feed intake, mortality count, and average body weight.6. Statistical Data AnalysisBased on the analysis of the tables above, the control group without bile acid supplementation showed a clear downward trend, with the laying rate dropping from 78.34% to 75.18%. In contrast, during the same period, the laying rate of the experimental group supplemented with bile acids increased by 3.57% to 7.71% compared to the control group. Their laying rate went from 81.88% to 80.98%, showing a significantly slowed decline. This demonstrates that bile acids play a functional role in improving the laying rate of hens and delaying its decline. Furthermore, looking at the body weight of the laying hens of the same age during this phase, the addition of bile acids also significantly enhanced body weight stability and uniformity.As the age of laying hens increases, the laying rate declines during the late laying period. Adjusting the composition of the basal diet or utilizing additives can improve the production performance of laying hens. Bile acids serve as a feed additive that can enhance fat utilization and improve production performance. The above trial indicates that feeding an appropriate amount of bile acids during the late laying period of hens can improve their production performance and increase the laying rate.
