Broiler Feed Conversion Ratio: Benchmarking and Improvement Strategies

By Dr. Zubair Khalid, DVM, MS, PhD ·

Broiler Feed Conversion Ratio: Benchmarking and Improvement Strategies

Key Takeaways

  • Broiler Feed Conversion Ratio (FCR) is calculated as total feed consumed divided by total live weight gained, with mortality weight correctly accounted for and condemned bird weight added back to sold weight.
  • A good FCR benchmark for conventional broilers processed at 6-7 weeks is 1.5 to 1.7, with excellent performance below 1.5, while slow-growing strains typically exhibit higher FCRs (2.0-2.5).
  • Key management levers for FCR improvement include optimizing feed quality (energy density, particle size, mycotoxin control), precise temperature and ventilation control to maintain the thermoneutral zone, and diligent litter and water management.
  • Subclinical infections, particularly coccidiosis and necrotic enteritis impacting intestinal health and nutrient absorption, can significantly reduce feed efficiency by 5-10% without overt mortality.
  • Weekly FCR tracking from week 2 through processing is critical, with a deviation of more than 0.05 above baseline warranting investigation, and a sustained increase of over 0.1 for two consecutive weeks signaling a serious issue requiring professional consultation.

Feed is the largest single cost in broiler production, often accounting for 60 to 70 percent of total grow-out expenses. That makes the broiler feed conversion ratio, or FCR, the most important economic number on your farm after the sale price per pound. Every 0.1 point of FCR improvement on a 100,000 bird flock can mean thousands of dollars in saved feed costs, so small changes in management can have outsized effects on profitability.

This guide covers what the broiler feed conversion ratio is, how to calculate it correctly, what benchmarks to aim for, and the practical management strategies that improve feed efficiency in broilers. It is written for broiler growers, farm managers, and poultry students who want a working reference for day to day decisions. You will find step by step instructions for tracking FCR, common mistakes that inflate your numbers, and clear guidance on when to call a veterinarian or extension agent for help.

At a Glance

ItemPractical Takeaway
FCR definitionPounds of feed consumed divided by pounds of live weight gained
Standard calculationTotal feed used divided by total live weight sold, adjusted for mortality and condemned birds
Good benchmark1.5 to 1.7 for conventional broilers at 6 to 7 weeks
Excellent benchmarkBelow 1.5 for fast growing strains under ideal conditions
Best tracking intervalWeekly from week 2 through processing
Most common errorForgetting to subtract mortality weight from the FCR calculation
Biggest leversFeed quality, temperature control, litter management, stocking density, and water access
When to call for helpFCR jumps more than 0.1 in a single week or trends up for two weeks straight

What Is Broiler Feed Conversion Ratio

The broiler feed conversion ratio measures how efficiently your birds convert feed into body weight. It is a simple ratio. You divide the total weight of feed consumed by the total live weight gained. A flock with an FCR of 1.6 needs 1.6 pounds of feed to produce 1 pound of live broiler.

FCR is not the same as feed efficiency, although the two terms are often used interchangeably in casual conversation. Feed efficiency is the inverse of FCR. It is expressed as a percentage or as pounds of gain per pound of feed. An FCR of 1.6 equals a feed efficiency of 62.5 percent. Both numbers describe the same relationship, but FCR is the standard used in broiler production contracts and industry benchmarks.

The broiler feed conversion ratio matters for three reasons. First, it directly determines your feed cost per pound of live weight. Second, it is the primary metric used to evaluate your management against contract averages and industry standards. Third, it is a sensitive indicator of flock health. A sudden change in FCR often appears before visible signs of disease or management failure.

How to Calculate Broiler FCR

Calculating FCR correctly requires accurate measurement of both feed consumed and live weight gained. Errors in either number will distort your FCR and lead to poor management decisions.

Step 1: Measure Total Feed Consumed

Track every pound of feed that enters the house. Weigh feed deliveries at the bin or use the feed company delivery tickets. At the end of the grow-out period, weigh the feed remaining in the bins and subtract it from the total delivered. The difference is the feed consumed by the flock.

Do not rely on feeder fill levels for this calculation. The amount of feed sitting in the feeder lines at any given moment is not the same as feed consumed. Weigh the feed that goes in and weigh the feed that remains.

Step 2: Measure Total Live Weight Gained

The total live weight gained equals the weight of all birds sold plus the weight of all birds that died or were culled during the grow-out period, minus the weight of the chicks placed.

Most growers use the processing plant weight tickets for sold birds. For mortality, you need an estimate of average bird weight at the time of death. Weigh a sample of dead birds each day and record the average. A simple formula works well: total mortality weight equals the number of dead birds multiplied by the average weight at death. Many growers use 60 percent of the final average weight as a rough estimate for mortality weight, but weighing actual dead birds is more accurate.

Step 3: Apply the Formula

The basic FCR formula is:

FCR = Total Feed Consumed / Total Live Weight Gained

Here is a worked example. A flock of 20,000 broilers consumes 140,000 pounds of feed. The plant reports 61,000 pounds of live weight sold. Mortality during the grow-out was 800 birds with an estimated total weight of 2,400 pounds. The chicks weighed 1,100 pounds at placement.

Total live weight gained = 61,000 + 2,400 - 1,100 = 62,300 pounds

FCR = 140,000 / 62,300 = 2.25

This FCR of 2.25 is above typical benchmarks, which would signal a management problem worth investigating.

Step 4: Adjust for Condemned Birds

If the processing plant condemns birds, their weight is not included in the sold weight on your settlement sheet. You must add condemned bird weight back into the total live weight gained, otherwise your FCR will look worse than it actually is. Check your settlement sheet for the condemned weight and add it to the sold weight before calculating FCR.

Adjusted FCR and European Production Efficiency Factor

The broiler industry often uses an adjusted FCR that standardizes for bird weight at processing. Heavier birds naturally have a higher FCR because each additional pound of gain requires more feed as the bird matures. The adjusted FCR calculation corrects for this so you can compare flocks processed at different weights.

The European Production Efficiency Factor, or EPEF, combines FCR, livability, and average daily gain into a single score. The formula is:

EPEF = (Livability percent x Live Weight in kg) / (Age in days x FCR) x 100

A higher EPEF score indicates better overall performance. Most integrators use EPEF or a similar index to rank growers and determine bonus payments. Ask your integrator which calculation they use so you can track the right numbers.

Broiler FCR Benchmarks

Benchmarks give you a target to aim for and a basis for comparison. The broiler feed conversion ratio varies by genetics, age at processing, diet formulation, and environmental conditions. There is no single universal benchmark that applies to every operation.

Conventional Broilers

For standard broiler strains processed at 6 to 7 weeks of age, a good FCR is between 1.5 and 1.7. Excellent flocks under ideal conditions achieve FCRs below 1.5. Poor flocks run above 1.8 or 2.0.

The table below shows typical FCR expectations by age for conventional broilers:

Age in DaysExpected FCR Range
14 days1.0 to 1.2
21 days1.2 to 1.35
28 days1.3 to 1.5
35 days1.45 to 1.65
42 days1.55 to 1.75
49 days1.7 to 1.9

These ranges assume standard management, adequate nutrition, and no major disease challenges. Your specific genetics will have its own expected FCR curve. Your hatchery or integrator should provide growth and FCR targets for the specific strain you raise.

Slow Growing and Specialty Broilers

Slow growing broiler strains raised for specialty markets have higher FCRs because they are processed at older ages and have different genetics. Expect FCRs in the range of 2.0 to 2.5 for these birds. The higher feed cost is offset by higher sale prices in these markets.

Comparing Your Flock to Benchmarks

When comparing your flock to a benchmark, make sure you are comparing the same things. Compare FCR at the same processing age and weight. Compare adjusted FCR if your integrator uses it. Compare against the same genetic strain. A Ross 308 flock will have a different expected FCR than a Cobb 500 flock or a Hubbard flock.

Track your FCR across multiple flocks to establish your own farm baseline. A single flock that comes in at 1.65 is less informative than a pattern of five flocks averaging 1.62 with a range of 1.58 to 1.68. Your farm baseline tells you what is normal for your facilities, your management, and your region.

Causes of Poor Broiler Feed Conversion Ratio

When FCR climbs above your baseline, something is wrong. The causes fall into several categories, and identifying the correct cause is essential for fixing the problem.

Feed Quality Issues

Feed is the numerator in the FCR equation. If feed quality declines, birds may eat the same amount but gain less weight. Common feed problems include:

  • Low energy density from poor quality corn or soybean meal
  • Mycotoxin contamination from moldy grain
  • Oxidation of fats and oils in the feed
  • Improper particle size, either too fine or too coarse
  • Nutrient segregation during delivery or in the feeder lines
  • Stale feed that has sat in the bin too long

Check your feed deliveries for consistency. Request the feed analysis sheet from your mill and verify that the delivered feed matches the formulation you ordered. If you suspect mycotoxins, submit a feed sample to a laboratory for analysis.

Environmental Stress

Broilers are most efficient when they are in their thermoneutral zone, the temperature range where they do not need to expend energy to stay warm or cool down. When birds are cold, they consume more feed to generate body heat. When birds are hot, they eat less but also grow more slowly because the heat stress diverts energy away from muscle deposition.

Poor ventilation creates a related problem. High ammonia levels damage the respiratory tract and reduce feed intake. High humidity makes it harder for birds to shed heat. Drafts at bird level cause cold stress even when house temperature readings look normal.

Health Problems

Disease challenges have a direct impact on FCR. Even subclinical infections that do not cause visible mortality can reduce feed efficiency by 5 to 10 percent.

Intestinal health is especially important. Coccidiosis damages the intestinal lining and reduces nutrient absorption. Necrotic enteritis and other bacterial infections cause similar problems. Viral diseases such as infectious bronchitis can reduce growth and feed efficiency even in flocks that recover.

Management Errors

Simple management mistakes inflate FCR. Feed wastage from overfilled feeders or poorly adjusted feeder heights wastes feed without adding weight. Water deprivation reduces feed intake and growth. High stocking density increases stress and reduces feed efficiency. Inadequate lighting programs can reduce activity and feed intake patterns.

Genetic Factors

Different broiler strains have different FCR potentials. Fast growing strains are more feed efficient but also more susceptible to metabolic and skeletal problems. Slow growing strains have higher FCRs but better livability. You cannot compare FCR across strains without accounting for genetics.

How to Improve FCR in Broilers

Improving the broiler feed conversion ratio requires attention to every factor that influences feed intake, nutrient utilization, and growth. The strategies below are organized by management area so you can work through them systematically.

Optimize Feed Management

Feed management starts with the feed itself. Work with your nutritionist or feed mill to ensure the ration matches your flock's age and genetics. The nutrient density of the feed should match the growth potential of your birds. Overformulating wastes money. Underformulating wastes growth.

Feed particle size matters more than many growers realize. Broilers perform best on crumbles or pellets with a consistent particle size. Fine particles are consumed more slowly and can be selectively sorted by the birds. Coarse particles are harder to digest. Ask your mill for the particle size profile of your feed and check it periodically.

Pellet quality affects FCR because birds spend less energy eating pellets than mash. A high percentage of fines in your pellets reduces the benefit. Aim for a pellet durability index above 80 percent. If you see excessive fines in the feeder pans, ask your mill to check the pellet quality.

Feeder management is equally important. Set feeder heights so the pan lip is at the back height of the birds. Feeders set too high make it difficult for birds to eat. Feeders set too low allow feed to be scratched out and wasted. Check feeder adjustment at least twice weekly and adjust as the birds grow.

Keep feed in the pans at the correct level. Overfilled pans lead to feed wastage. Underfilled pans limit intake and cause aggressive competition at the feeder. Most feeder manufacturers provide guidance on pan fill levels. Follow that guidance and check pans daily.

Manage the Brooding Period

The first 7 to 10 days set the trajectory for the entire flock. Broilers that get off to a good start are more feed efficient throughout the grow-out. Broilers that struggle in the first week rarely catch up.

Start with correct brooding temperatures. The target floor temperature under the brooders should be 90 to 95 degrees Fahrenheit during the first week, depending on the recommendations for your strain. Monitor floor temperature, not just air temperature at bird height. A cold floor chills chicks and reduces feed intake.

Make sure chicks find feed and water within the first few hours after placement. Place feed on paper or in extra feeder trays for the first 3 to 5 days. This encourages early feed intake and trains chicks to eat from the feeders. Check crop fill rates at 24 and 48 hours after placement. A good target is 95 percent crop fill at 24 hours and 98 percent at 48 hours. Low crop fill indicates a problem with feed or water access.

Provide adequate feeder and drinker space during brooding. Chicks need approximately 2.5 to 5 centimeters of feeder space per bird in the first week. If feeder space is inadequate, the most aggressive chicks eat first and the rest get less feed. This creates uneven growth and higher FCR.

Control House Temperature

Temperature management is one of the most powerful tools for improving FCR. The goal is to keep birds in their thermoneutral zone so they use feed for growth rather than temperature regulation.

Use the temperature curve recommended for your strain. Most broiler strains have a recommended starting temperature around 90 to 95 degrees Fahrenheit that decreases by about 5 degrees per week down to 65 to 70 degrees at processing. Follow the curve from your hatchery or integrator.

Monitor temperature at bird level, not just at the controller sensor. Temperature can vary by 5 to 10 degrees across a house depending on ventilation, heater placement, and air leakage. Walk the house daily and check temperatures in multiple locations.

Adjust temperature based on bird behavior. If birds are panting, they are too hot. If they are huddling, they are too cold. If they are spread evenly across the house and behaving normally, the temperature is likely correct. Bird behavior is a better indicator than any single temperature reading.

Be especially careful during the transition from brooding to grow-out. The transition period is when many flocks experience temperature stress. Reduce temperatures gradually rather than in large jumps. This helps birds acclimate without a growth check.

Optimize Ventilation

Ventilation serves three purposes in a broiler house: remove moisture, remove ammonia and carbon dioxide, and control temperature. Each of these affects FCR.

Minimum ventilation removes moisture and gases while maintaining temperature. Run minimum ventilation on a timer during cold weather to keep ammonia below 25 parts per million and carbon dioxide below 3,000 parts per million. High ammonia damages the respiratory tract and reduces feed intake. High carbon dioxide reduces oxygen availability and can depress growth.

Transitional ventilation mixes air to maintain temperature uniformity during mild weather. Tunnel ventilation provides cooling during hot weather. Use each ventilation mode at the appropriate time rather than forcing one mode to do the job of another.

Check your ventilation system regularly. Dirty fans move less air. Worn belts slip and reduce fan speed. Blocked inlets restrict airflow. Loose curtains or doors create unintended air leaks. A maintenance schedule for fans, belts, shutters, and inlets keeps the system working at peak efficiency.

Maintain Litter Quality

Litter quality affects FCR through its impact on bird health and behavior. Wet litter promotes foot pad lesions, breast blisters, and ammonia production. Each of these reduces feed efficiency.

Manage drinker systems to minimize water spillage. Check drinker height and water pressure regularly. Nipple drinkers should be at the correct height so birds drink without spilling water. Water pressure should be adjusted for bird age and flow rate.

Remove wet spots promptly. Wet litter under drinkers or around water lines should be removed and replaced with dry litter. Do not wait until the end of the flock to address wet spots.

Add litter amendments to control ammonia. Products containing sodium bisulfate or other acidifying agents can reduce ammonia levels in the litter. Use them according to the manufacturer's instructions and monitor ammonia levels to verify effectiveness.

Provide Adequate Water

Water is the most important nutrient, and water intake drives feed intake. Broilers drink approximately 1.8 to 2.0 pounds of water for every pound of feed consumed. If water intake drops, feed intake drops within hours.

Provide adequate drinker space. The recommendation is approximately 1 nipple drinker per 8 to 10 birds, or 1 bell drinker per 100 birds. Check drinker height and water flow rate daily. Water flow should be sufficient to meet peak demand during hot weather.

Clean the water system between flocks. Biofilm in water lines can harbor bacteria and reduce water intake. Flush lines with a poultry-safe sanitizer between flocks and check water quality.

Monitor water consumption daily. A sudden drop in water intake is often the first sign of a problem. Track water consumption against expected levels and investigate any deviation.

Manage Stocking Density

Stocking density affects FCR through its impact on heat stress, competition for feed and water, and litter quality. Overcrowded houses produce higher FCR because birds are stressed and have difficulty accessing feed and water.

Follow the stocking density recommendations for your strain and market weight. The standard for conventional broilers is approximately 0.8 to 1.0 square feet per bird, depending on the final weight and the ventilation capacity of the house. If you are unsure of the correct density, ask your integrator or extension agent.

If you see signs of overcrowding such as panting, reduced feed intake, or poor litter quality, reduce stocking density on the next flock. The lost bird numbers may be offset by better FCR and higher sale weights per bird.

Use Lighting Programs

Lighting programs influence feed intake patterns and activity levels. The goal is to encourage feed intake during the day and reduce activity at night.

Most integrators use a lighting program that provides 18 to 24 hours of light in the first week, followed by a gradual reduction to 16 to 18 hours of light per day. The dark period gives birds time to rest and reduces activity, which can improve feed efficiency.

Follow the lighting program recommended by your integrator or hatchery. Do not use continuous light throughout the grow-out unless specifically recommended. Continuous light increases activity and can lead to higher FCR.

Monitor Bird Health

Healthy birds are efficient birds. A comprehensive health monitoring program helps you catch problems early before they affect FCR.

Walk the flock at least twice daily. Look for birds that are inactive, have ruffled feathers, or are not eating. Check for signs of respiratory distress such as coughing or sneezing. Count birds at each walk to detect mortality and culls.

Weigh birds weekly to track growth against the expected curve. A flock that falls behind its growth curve will have a higher FCR unless feed intake is also reduced. Use a sample of 50 to 100 birds weighed individually for accuracy.

Check feed consumption daily and compare it to expectations. A flock that eats less than expected may be experiencing a health problem or environmental stress. A flock that eats more than expected without gaining weight may have a feed quality problem.

Reduce Feed Wastage

Feed wastage inflates FCR because the wasted feed is counted as consumed but produces no weight gain. Common sources of feed wastage include:

  • Overfilled feeder pans
  • Feeders set at the wrong height
  • Damaged or worn feeder pans
  • Feed spillage during delivery
  • Wind blowing feed from outdoor bins

Check feeders daily for damage and correct adjustment. Repair or replace damaged pans promptly. Keep the area around feed bins clean and sweep up spilled feed.

Common Mistakes in Tracking Broiler FCR

Even experienced growers make errors in FCR tracking. The mistakes below are common and can distort your numbers enough to cause bad decisions.

Forgetting Mortality Weight

The most common mistake is calculating FCR using only the weight of birds sold, without adding the weight of birds that died. This makes FCR look worse than it actually is because the feed consumed by dead birds is counted without the corresponding weight gain.

Always add mortality weight to the sold weight before calculating FCR. Weigh a sample of dead birds daily and keep a running total. This gives you an accurate picture of the feed efficiency of the live flock.

Using Final Weight Instead of Weight Gain

Some growers calculate FCR by dividing feed consumed by final live weight rather than by weight gain. This is incorrect because the chicks had weight at placement. The correct calculation uses weight gain, which is final weight minus chick placement weight.

The error is small for heavy broilers because chick weight is a small fraction of final weight. But it becomes significant for younger flocks or when comparing flocks processed at different ages.

Ignoring Condemned Birds

Condemned birds at the processing plant are not included in your settlement weight. If you do not add their weight back, your FCR will be overstated. Check your settlement sheet for condemned weight and include it in your calculation.

Mixing Different Feed Types

If you use different feed formulations during the grow-out, make sure you account for each one correctly. The total feed consumed is the sum of all feed delivered minus the feed remaining. Do not apply the same FCR calculation to a single feed phase when multiple diets were used.

Inconsistent Weighing Procedures

Weigh birds at the same time of day and under the same conditions each week. Weighing in the morning after an overnight fast gives different results than weighing in the afternoon after a full day of feeding. Use a consistent procedure so your weekly weights are comparable.

Not Tracking FCR by House

If you have multiple houses, track FCR separately for each house. A farm average can hide problems in a single house. Track feed consumption, mortality, and weights by house so you can identify which house needs attention.

Monitoring and Recordkeeping Systems

Good recordkeeping is the foundation of FCR improvement. You cannot improve what you do not measure. A simple, consistent recordkeeping system is more valuable than a complex system you do not maintain.

Daily Records

Keep the following daily records for each house:

  • Feed delivered and feed remaining in bins
  • Water consumption
  • Mortality and culls
  • House temperature, high and low
  • Ventilation settings and operation
  • Bird behavior observations
  • Any treatments or interventions

Record these at the same time each day. A consistent routine makes it easier to spot deviations.

Weekly Records

Each week, weigh a sample of birds and record average weight. Calculate weekly feed consumption and weekly FCR. Compare these numbers to the expected curve for your strain.

Plot your weekly FCR on a graph so you can see trends. A single high week may be noise. A steady upward trend over two to three weeks is a problem worth investigating.

Flock Records

At the end of each flock, compile the complete records:

  • Total feed consumed
  • Total live weight sold
  • Total mortality weight
  • Chick placement weight
  • Final FCR
  • Adjusted FCR
  • EPEF or other performance index
  • Processing age and weight
  • Condemnation rate

Keep these records for multiple flocks so you can establish your farm baseline and identify trends over time.

Using Records to Make Decisions

Records are only useful if you act on them. Review your FCR data after each flock and identify the factors that contributed to good or poor performance. Look for patterns across flocks. If FCR is consistently worse in one season, plan for that season. If FCR is worse in one house, investigate the house environment.

Share your records with your integrator or extension agent. They can help you interpret the data and identify improvement opportunities. Many integrators provide benchmarking reports that compare your performance to other growers. Use these reports to set realistic improvement targets.

Decision Thresholds and When to Take Action

Knowing when to act is as important as knowing what to do. The thresholds below are practical guidelines for when to investigate a problem and when to call for professional help.

Investigate When FCR Deviates from Baseline

If your weekly FCR is more than 0.05 above your farm baseline for that age, investigate the cause. Check feed quality, environmental conditions, bird health, and feeder management. The problem may be simple to fix if you catch it early.

If FCR is more than 0.1 above baseline for two consecutive weeks, the problem is serious. Conduct a thorough investigation and consider contacting your integrator or extension agent.

Call for Help When You See These Signs

Contact your veterinarian or integrator veterinarian immediately if you see:

  • A sudden increase in mortality
  • Birds with severe respiratory distress
  • A drop in feed consumption of more than 20 percent in a single day
  • Neurological signs such as tremors or paralysis
  • Swollen heads or facial edema
  • Diarrhea or abnormal droppings

These signs may indicate a notifiable disease, and early reporting is essential. Your veterinarian can help you rule out serious diseases and recommend appropriate treatment.

Contact your extension agent or integrator for help with:

  • Persistent FCR above benchmarks despite management changes
  • Feed quality concerns that your mill cannot resolve
  • Ventilation problems you cannot diagnose
  • Questions about new equipment or management practices

Extension agents can provide independent advice and connect you with diagnostic laboratories and other resources.

When to Adjust Management vs. When to Cull

If a flock has a health problem that affects FCR, you may need to decide whether to treat the flock or cull affected birds. This decision depends on the severity of the problem, the age of the flock, and the cost of treatment.

For mild problems with good recovery potential, treatment is usually worthwhile. For severe problems with poor prognosis, early processing or culling may be more economical. Discuss the options with your veterinarian and integrator.

Frequently Asked Questions

What is a good broiler feed conversion ratio?

A good broiler feed conversion ratio for conventional broilers processed at 6 to 7 weeks is 1.5 to 1.7. Excellent flocks under ideal conditions achieve below 1.5. Slow growing strains and specialty broilers have higher FCRs, typically 2.0 to 2.5. Compare your FCR against the benchmark for your specific strain and processing age.

How do I calculate broiler FCR?

Divide total feed consumed by total live weight gained. Total feed consumed is feed delivered minus feed remaining. Total live weight gained is the weight of birds sold plus the weight of birds that died, minus the weight of chicks placed. Add condemned bird weight back to the sold weight for an accurate calculation.

What causes high FCR in broilers?

High FCR is caused by feed quality problems, environmental stress, health challenges, management errors, and genetic factors. Poor quality feed, temperature stress, high ammonia, intestinal disease, feed wastage, and overcrowding are common causes. Investigate all of these when FCR climbs above your baseline.

How can I improve FCR in broilers?

Improve FCR by optimizing feed quality and feeder management, controlling house temperature, maintaining good ventilation, managing litter quality, providing adequate water, using appropriate stocking density, following a lighting program, and monitoring bird health. The brooding period is especially important because early performance sets the trajectory for the flock.

Does feed particle size affect FCR?

Yes. Broilers perform best on crumbles or pellets with consistent particle size. Fine particles reduce intake and can be sorted by birds. Coarse particles are harder to digest. Check the particle size profile of your feed and request adjustments if you see excessive fines or coarse particles.

How often should I weigh broilers to track FCR?

Weigh broilers weekly from week 2 through processing. Weigh a sample of 50 to 100 birds individually at the same time of day and under the same conditions each week. Weekly weights let you track growth against the expected curve and identify problems early.

What is the difference between FCR and feed efficiency?

FCR is the ratio of feed consumed to weight gained, expressed as pounds of feed per pound of gain. Feed efficiency is the inverse, expressed as a percentage or as gain per unit of feed. An FCR of 1.6 equals a feed efficiency of 62.5 percent.

When should I call a veterinarian about FCR problems?

Call a veterinarian immediately if you see sudden mortality, severe respiratory distress, a sharp drop in feed consumption, neurological signs, or other signs of serious disease. For FCR problems without visible disease signs, contact your veterinarian or extension agent if FCR stays more than 0.1 above baseline for two weeks.

Related Farming Guides

This section will be populated with links to related farming guides on poultry management, broiler health, and feed management. Check back for updated content on improving flock performance and profitability.

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References

This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.