Related Experiment Video
Updated: Aug 7, 2026
06:38
In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth
Published on: September 20, 2021
The effect of early feed restriction on broiler performance
1USDA, Agricultural Research Service, South Central Poultry Research Laboratory, Mississippi State, Mississippi 39762, USA.
Poultry Science
|August 1, 1995
Summary
Early feed restriction in broiler chickens improved feed conversion ratios. However, significant weight reductions were observed with moderate to severe feed restriction, with some recovery possible by 48-49 days of age.
Area of Science:
- Animal Science
- Poultry Science
- Avian Nutrition
Background:
- Feed restriction is a common practice in broiler production.
- Understanding the impact of early feed restriction on broiler performance is crucial for optimizing growth and feed efficiency.
Purpose of the Study:
- To evaluate the effects of early feed restriction on broiler performance.
- To determine the impact of varying levels and durations of feed restriction on growth, feed conversion, and carcass characteristics.
Main Methods:
- Nine trials were conducted, involving feed restriction based on 24-hour feed consumption of control groups.
- Feed restriction periods were from 7-14 days or 8-16 days of age.
- Restriction levels ranged from 60% to 90% of control feed consumption.
Main Results:
- Early feed restriction did not influence abdominal fat deposition.
- Feed conversion (feed:body weight) was significantly improved by early feed restriction.
- While 8% feed restriction (90% intake) allowed weight recovery by 41 days, 17-18% restriction (75% intake) did not.
- Severe restriction (60% intake) resulting in 27-31% weight reduction at 16 days allowed weight compensation by 48-49 days.
- No significant differences in mortality or leg deformities were observed.
Conclusions:
- Early feed restriction can enhance feed efficiency in broilers.
- The ability of broilers to compensate for early weight loss depends on the severity and duration of the restriction.
- Moderate to severe early feed restriction may require extended periods for complete weight recovery.
