Broiler House Feed Line and Pan Management

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-14

Key Takeaways

• Criticality of Feed Line Height: Pan edges should align with the backs of standing birds, requiring a slight stretch for feed access, to optimize intake and minimize waste; this adjustment must be made at least twice weekly from week 2 to week 6, and daily during the rapid growth phase of the first 14 days.
• Feed Depth Management: Maintain feed depth at 50-75% of the pan lip height to ensure consistent availability without spillage, adjusting the feed controller or pan shutter to achieve this, and checking daily for uniformity across all pans.
• Early Chick Nutrition: For the first 7-10 days, utilize supplemental chick feeders (trays or lids) with shallow feed (1-2 cm depth) and ensure main pans are pre-filled and set low to facilitate immediate feed access, preventing growth setbacks due to missed early nutrition.
• Feed Wastage Prevention: Minimize feed loss by ensuring pans are level, not overfilled, and at the correct height; observe litter for feed accumulation, which indicates wastage from issues like low pan height or excessive feed depth, directly impacting feed conversion ratio.
• System Maintenance and Monitoring: Conduct thorough cleaning and inspection of feed pans and auger tubes between flocks, and monitor daily feed intake and bird weight uniformity to detect deviations from expected performance, which can signal equipment malfunction or health issues.
• Impact on Bird Welfare and Economics: Proper feed line management directly influences body weight uniformity, feed conversion ratio (65-75% of production cost), litter condition (preventing footpad lesions and ammonia), and overall flock health, thereby impacting profitability and processing plant acceptance.

Feed line and pan management is one of the most overlooked yet highest-impact daily tasks in a commercial broiler house. The difference between a well-adjusted feed system and a neglected one shows up directly in body weight uniformity, feed conversion ratio, litter condition, and flock health. This guide covers the full scope of broiler feed line management, including equipment setup, daily adjustment routines, pan height and feed level calibration, cleaning protocols, and troubleshooting common problems. It is written for broiler growers, farm managers, and poultry service technicians who want practical, field-tested procedures they can apply immediately in tunnel-ventilated houses, curtain-sided houses, and every housing type in between.

At a Glance

• Check feed line height daily, especially during the first 14 days when birds grow rapidly
• Set pan edges level with the backs of standing birds at 7 to 10 days of age, then raise lines gradually so birds stretch slightly to reach feed
• Adjust feed lines twice weekly from week 2 through week 6 to match flock growth
• Maintain feed depth in pans at 50 to 75 percent of the pan lip height for most of the growout
• Run feed lines for 5 to 10 minutes before chick placement to prefill pans and confirm all pans are dispensing
• Clean feed pans and lines between flocks, and inspect auger sections for wear and rust
• Keep a written feed line log with dates, pan heights, feed depths, and bird weights to spot problems early
• Call your service technician or veterinarian if you see uneven crop fill, excessive feed wastage, or a sudden drop in feed intake

Why Feed Line Management Matters

Feed represents 65 to 75 percent of the total cost of producing a broiler. Even small errors in feed line setup translate into measurable financial losses across a 35,000 to 50,000 bird house. When feed lines are too low, birds waste feed by pushing it out of pans with their heads and breasts. When feed lines are too high, smaller birds cannot reach the feed, which creates uneven growth and increases culling rates. When feed depth is inconsistent, some birds eat more than they need while others go hungry.

The biology of a broiler makes feed line management more critical than in other poultry species. Modern broiler strains gain 50 to 60 grams per day during peak growth. A bird that misses feed for even a few hours during the first week will not catch up to its flockmates. The digestive system of a young chick is also immature. Feed that sits in pans too long can become stale, dusty, or contaminated with droppings, which reduces intake and increases the risk of enteric disease.

Feed line management also affects litter quality. When birds waste feed, the spilled feed mixes with litter and increases moisture. Wet litter leads to footpad lesions, breast blisters, and elevated ammonia levels. These conditions reduce bird welfare and increase the likelihood of carcass condemnation at processing. In short, feed line management is not just about feeding birds. It is about protecting the entire production system.

Understanding Your Feed System Components

Before you can manage feed lines effectively, you need to know the parts of your system and how they work together. A typical broiler house has two to four feed lines running the length of the house. Each line consists of a hopper or auger tube, a series of feed pans spaced 60 to 90 centimeters apart, and a drive unit that moves feed from the hopper through the auger to each pan.

Feed Pans

Feed pans come in several designs, but most modern broiler houses use round pans with a center cone and an adjustable feed ring or shutter. The pan design determines how much feed is available at the lip and how easily birds can access it. Some pans have a grill or anti-waste ring that prevents birds from scratching feed out. Others have a deeper bowl that holds more feed but requires more careful adjustment.

The two most common pan types are the 30-centimeter pan and the 35-centimeter pan. The larger pans hold more feed and suit older birds, while the smaller pans work better for chicks. Many growers use a combination, starting with chick pans or feeder lids for the first 7 to 10 days, then transitioning to the main pans.

Auger Tube and Drive Unit

The auger tube carries feed from the hopper to the pans. A steel auger inside the tube rotates to push feed along. The drive unit at the end of the line turns the auger and controls how fast feed moves. Most systems have a timer or a sensor that starts and stops the auger to keep a consistent feed level in the pans.

Hopper and Control System

The hopper holds bulk feed and releases it into the auger tube. The control system, often called the feed controller or feed clock, regulates how long the auger runs and how often. Modern controllers use a photocell or pressure sensor in a pan to detect when feed is low and run the auger until the pan refills. Older systems use a simple timer that runs the auger for a set number of minutes each hour.

Chick Feeding Equipment

For the first 7 to 10 days, most growers use supplemental chick feeding equipment. This includes chick trays, feeder lids, or paper feed covers placed on the litter. These provide easy access to feed for chicks that cannot yet reach the main pans or that are still learning to find feed. The transition from chick feeders to main pans is a critical management window that requires careful attention.

Setting Up Feed Lines Before Chick Placement

Good feed line management starts before the birds arrive. The setup you do in the 24 hours before chick placement determines how well the flock starts. A poor setup creates problems that follow the flock for weeks.

Preplacement Checklist

Walk every feed line in the house and check the following items:

1. All pans are level and hanging straight from the auger tube
2. Pan height is set to the correct starting position for day-old chicks
3. Feed depth in each pan is uniform
4. The auger runs smoothly with no binding or unusual noise
5. The hopper is full and the feed delivery system is clean
6. No old feed or debris remains in pans or auger tubes from the previous flock
7. All drive units and controllers are functioning
8. Chick trays or feeder lids are clean and positioned correctly
9. Feed lines are not tangled with water lines or other equipment

Starting Pan Height

For day-old chicks, the pan lip should be at or slightly above the litter surface. The goal is to have the feed visible and accessible without the chick having to climb into the pan. Most manufacturers recommend setting the pan lip 5 to 8 centimeters above the litter for day-old chicks. This allows chicks to peck at feed without wasting it.

If you are using chick trays or feeder lids, place them so chicks can access feed within the first few hours of placement. The main pans should be pre-filled with feed and set low enough that chicks can see the feed. Some growers run the feed lines for 5 to 10 minutes after filling to ensure feed reaches all pans and to create a visible feed trail.

Prefilling Feed Lines

Run the feed system for 10 to 15 minutes before chick placement. This accomplishes three things. First, it verifies that all pans are receiving feed. Second, it allows you to check for auger binding or blockages. Third, it creates a layer of feed in each pan so chicks can find food immediately.

After prefilling, check every pan to confirm it has feed. A pan that is empty or only partially filled indicates a blockage or an auger problem. Fix these issues before placing birds. Once birds are in the house, fixing a feed line problem is more difficult and causes more stress to the flock.

Feed Line Height Adjustment Through the Growout

Feed line height is the single most important adjustment you will make during the flock. The correct height changes as birds grow. A line that is perfect at day 7 is too low at day 14 and too high at day 21. You need a systematic schedule for raising lines as the flock grows.

The Back Height Rule

The standard rule for feed line height is to keep the pan lip level with the back of a standing bird. This forces the bird to stretch its neck slightly to reach the feed. The slight stretch encourages feed intake while preventing the bird from standing in the pan or scratching feed out.

For the first 7 to 10 days, keep the pan lip at or just below the back height of the smallest birds in the flock. This ensures even the smallest chicks can reach feed. After day 10, raise the line so the pan lip is just above the back of the average bird. This prevents larger birds from dominating the pan and gives smaller birds a chance to eat.

Weekly Adjustment Schedule

A typical adjustment schedule for a 42-day growout looks like this:

Day 0 to 3: Pan lip at 5 to 8 centimeters above litter. Chicks can reach feed easily.

Day 4 to 7: Raise lines to 10 to 12 centimeters. Check that chicks can still reach feed without jumping.

Day 8 to 10: Raise lines to 15 to 18 centimeters. This is the transition period when chicks are growing quickly.

Day 11 to 14: Raise lines to 20 to 25 centimeters. Pan lip should be at the back height of the average bird.

Day 15 to 21: Raise lines every 3 to 4 days. Add 3 to 5 centimeters each time.

Day 22 to 35: Raise lines every 4 to 5 days. Add 3 to 5 centimeters each time.

Day 36 to market: Raise lines as needed to keep pan lip at back height. Check twice weekly.

These numbers are starting points. The actual height depends on your pan design, bird strain, and growth rate. The back height rule is the constant. Use it every time you adjust.

How to Raise Feed Lines

Most feed lines use a winch system with a cable and pulley. To raise a line, loosen the winch brake, turn the winch handle to raise the line to the desired height, then tighten the brake. Work in sections so you do not put too much tension on one part of the line.

Raise the line evenly along its length. If one end is higher than the other, birds will crowd the lower end and waste feed. Check the height at multiple points along the line, especially at the ends and at the drive unit.

After raising a line, walk the full length and check that all pans are level and hanging correctly. A pan that is tilted or twisted will not fill properly and will waste feed.

Adjusting for Bird Size Variation

Broiler flocks are not uniform. Some birds are larger, some are smaller. The feed line height should favor the smaller birds without letting the larger birds dominate. Set the pan lip so the smallest 20 percent of the flock can reach feed with a slight stretch. This means the pan lip may be slightly below the back height of the average bird.

If you see a group of birds that cannot reach feed, lower the line slightly. If you see feed being scratched out of pans, raise the line. The goal is to find the height that minimizes both problems.

Feed Depth and Pan Fill Management

Feed depth in the pan is the second critical adjustment. The depth controls how much feed is available at the pan lip and how easily birds can access it. Feed that is too deep is wasted. Feed that is too shallow limits intake and causes birds to peck at the pan bottom.

Correct Feed Depth

For most pan designs, the correct feed depth is 50 to 75 percent of the pan lip height. The feed should be visible at the lip but should not spill over. When you look at a pan from the side, you should see feed at the lip level but not mounded above it.

During the first week, keep feed depth at the lower end of the range, around 50 percent. Chicks do not need deep feed and will waste it if it is too deep. As birds grow and feed intake increases, raise the depth to 60 to 75 percent.

How to Adjust Feed Depth

Feed depth is controlled by the feed controller or by an adjustable ring on the pan. On systems with a photocell sensor, the controller runs the auger until the sensor detects that the pan is full. You can adjust the sensor position to change the fill level.

On systems with a timer, you adjust the number of minutes the auger runs each cycle. Start with the manufacturer's recommendation and observe the pans after each cycle. If pans are overflowing, reduce the run time. If pans are empty or nearly empty, increase the run time.

On pans with an adjustable feed ring or shutter, turn the ring to change the gap between the center cone and the pan bottom. A larger gap allows more feed into the pan. A smaller gap restricts feed flow.

Checking Feed Depth Daily

Walk the feed lines at least once daily and check feed depth in several pans along each line. Look for pans that are empty, overflowing, or filled unevenly. These indicate problems with the auger, the controller, or the pan itself.

Pay special attention to the first and last pans on each line. The first pan often fills first and may overflow. The last pan may not fill at all if the auger is worn or the line is too long. Both situations waste feed and create uneven feeding.

The Chick Start Period and Transition to Main Pans

The first 10 days are the most important period for feed line management. Chicks are learning to find feed and water. They have limited energy reserves. A mistake in feed presentation during this period can set back the entire flock.

Using Chick Trays and Feeder Lids

Most growers use chick trays or feeder lids for the first 7 to 10 days. These provide multiple feeding points close to the chicks. A general guideline is one chick tray per 75 to 100 chicks, or one feeder lid per 50 chicks. Place them evenly throughout the house, alternating with water lines.

Fill chick trays with a shallow layer of feed, about 1 to 2 centimeters deep. Refill them two to three times daily during the first 3 days, then gradually reduce refills as chicks learn to use the main pans. The goal is to encourage chicks to transition to the main pans by day 7 to 10.

Transitioning to Main Pans

The transition from chick trays to main pans should be gradual. Start by placing the main pans at the correct height and prefilled with feed. Chicks will find them within a day or two. As you see chicks using the main pans, reduce the number of chick trays you fill. Remove empty trays after 2 to 3 days.

Do not remove chick trays abruptly. Chicks that have not learned to use the main pans will go hungry. The transition period should take 3 to 5 days.

Common Chick Start Problems

If chicks are not eating within the first 24 hours, check the following:

1. Feed lines are prefilled and pans have visible feed
2. Pan height is low enough for chicks to reach
3. Chick trays are clean and filled with fresh feed
4. Lighting is bright enough for chicks to see feed
5. House temperature is correct, not too hot or too cold

Chicks that huddle under the brooder instead of eating are usually too cold. Chicks that pant and stay away from feed are usually too hot. Both conditions reduce feed intake and require immediate correction.

Feed Wastage and How to Prevent It

Feed wastage is a silent profit killer. A house that wastes 5 percent of its feed on a 100-ton flock loses 5 tons of feed. At current feed prices, that is a significant loss. Most feed wastage comes from preventable causes.

Common Causes of Feed Wastage

1. Pan height too low: Birds stand in pans or push feed out with their breasts
2. Feed depth too deep: Feed spills over the pan lip
3. Pans not level: Feed spills from the low side of a tilted pan
4. Damaged pans: Cracked or warped pans allow feed to escape
5. Overfilled pans: The controller runs too long and fills pans to overflowing
6. Birds scratching: Birds scratch in pans looking for preferred feed particles
7. Wind or airflow: High airspeed in tunnel houses blows feed out of pans

How to Measure Feed Wastage

You can estimate feed wastage by observing the litter beneath and around feed pans. Look for accumulations of feed particles on the litter. If you see a distinct ring of feed around a pan, that pan is wasting feed.

A more accurate method is to place a tray or piece of cardboard under a pan for 24 hours and weigh the spilled feed. Multiply this by the number of pans in the house to estimate total daily wastage. Do this at several locations to get a representative sample.

Correcting Feed Wastage

Once you identify the cause of wastage, make the correction immediately. Raise or lower the line to the correct height. Adjust the feed depth. Level the pans. Replace damaged pans. Adjust the controller to reduce fill time.

Monitor the problem for 24 to 48 hours after correction to confirm it is resolved. If wastage continues, look for other causes such as birds that are bored or stressed, or feed that is too finely ground and easily blown away.

Feed Line and Pan Maintenance

Feed systems require regular maintenance to function correctly. A well-maintained system lasts longer, wastes less feed, and causes fewer flock problems. Maintenance happens between flocks and during the growout.

Between Flock Maintenance

After each flock is removed, perform a thorough inspection and cleaning of the entire feed system. This is the best time to catch problems before they affect the next flock.

1. Remove all remaining feed from hoppers, auger tubes, and pans
2. Brush out pans to remove dust, webbing, and old feed
3. Inspect each pan for cracks, warping, or broken parts
4. Check auger sections for wear, especially at the ends and at drive units
5. Check auger tube for holes or rust that could contaminate feed
6. Lubricate drive units and winches according to manufacturer instructions
7. Test the controller and sensors to confirm they work
8. Check cables and pulleys for wear and proper tension
9. Replace any damaged or worn parts before the next flock

During Growout Maintenance

During the flock, perform lighter maintenance tasks:

1. Check pans daily for feed buildup or blockages
2. Remove any foreign material from pans
3. Check for pans that are tilted or hanging incorrectly
4. Listen for unusual noises from drive units or augers
5. Watch for pans that fill unevenly, indicating auger problems
6. Check that chick trays are clean and not contaminated with droppings

Cleaning and Disinfection

Between flocks, clean and disinfect the feed system as part of the overall house sanitation program. Remove all organic material first, then wash with a suitable detergent, rinse, and apply disinfectant. Pay special attention to pans and auger tubes where feed residue can harbor bacteria and molds.

After cleaning, allow the system to dry completely before adding fresh feed. Moisture in feed lines can cause feed to mold and cake, which blocks augers and reduces feed intake.

Feed Line Problems and Troubleshooting

Even with good management, feed systems develop problems. Here are the most common issues and how to fix them.

Empty Pans at the End of the Line

If the last pans on a line are empty or only partially filled, the auger is not delivering enough feed to the end of the line. This can happen for several reasons:

1. Worn auger sections that do not push feed efficiently
2. A partial blockage in the auger tube
3. The controller run time is too short
4. The line is too long for the drive unit capacity
5. Feed is bridging in the hopper and not flowing into the auger

Check the auger for wear, clear any blockages, and increase controller run time. If the problem persists, you may need to replace the auger or shorten the line.

Overflowing Pans at the Start of the Line

If the first pans overflow while later pans are empty, the controller is running too long or the sensor is not working correctly. The first pans fill first, and the controller does not stop until the sensor detects feed. If the sensor is at the first pan, it may stop the system before later pans fill.

Adjust the controller or move the sensor to a pan in the middle of the line. Check that the sensor is clean and functioning.

Pans That Do Not Fill at All

If a pan is completely empty while pans on either side are full, the pan is likely blocked or the auger is not delivering feed to that position. Remove the pan and check for a blockage in the pan inlet or the auger tube. Check that the pan is hanging correctly and the feed shutter is open.

Auger Makes Noise or Binds

A noisy auger usually indicates a problem. It could be a worn bearing, a bent auger section, or a foreign object in the tube. Stop the system and inspect. Running a damaged auger can cause more damage and may create a fire hazard.

Feed Bridging in the Hopper

Feed that sticks together and forms a bridge over the hopper outlet prevents feed from flowing into the auger. This is more common with finely ground feed or feed with high moisture content. Break up the bridge and consider adding a hopper vibrator or agitator to prevent recurrence.

Monitoring Feed Intake and Flock Performance

Feed line management is not just about equipment. It is about ensuring birds eat the right amount of feed at the right time. Monitoring feed intake helps you spot problems before they become serious.

Daily Feed Intake Records

Weigh feed in the hopper at the same time each day to track daily feed consumption. Compare actual consumption to the expected consumption for the bird age and strain. A sudden drop in feed intake is one of the earliest signs of disease, stress, or equipment failure.

Most growers use a feed scale or weigh cells on the hopper to track feed usage. If you do not have a scale, track the number of feed deliveries and the time between deliveries. A house that starts using noticeably more or less feed than expected needs investigation.

Expected Feed Intake by Age

Feed intake increases as birds grow. A typical broiler consumes about 50 grams of feed per day at day 7, 100 grams per day at day 14, 150 grams per day at day 21, and 200 grams per day at day 28. These numbers vary by strain and feed formulation, but they give you a baseline for comparison.

Body Weight and Uniformity Checks

Weigh a sample of birds weekly to track growth and uniformity. Weigh at least 50 to 100 birds per house, selected from different areas. Calculate the average weight and the coefficient of variation. A coefficient of variation above 12 percent indicates poor uniformity, which often traces back to feed access problems.

If you see poor uniformity, check feed line height and pan fill. Birds that cannot reach feed will fall behind. Birds that dominate the pans will grow too fast and may have leg problems.

Crop Fill Checks

Checking crop fill in the first 24 to 48 hours after placement tells you whether chicks are finding feed and water. At 8 hours after placement, 95 percent of chicks should have a full crop. At 24 hours, 98 percent should have feed and water in the crop.

To check crop fill, gently feel the crop area on the right side of the chick's neck. A full crop feels firm and round. An empty crop feels flat. If you find many chicks with empty crops, check feed lines and water lines immediately.

Common Mistakes in Feed Line Management

Even experienced growers make mistakes. Here are the most common ones and how to avoid them.

Setting Lines Too Low

Many growers keep feed lines too low to make sure birds can reach feed. This causes feed wastage and increases the risk of birds standing in pans. The back height rule prevents this. Check the height daily and raise lines as birds grow.

Adjusting Lines Too Infrequently

Some growers adjust feed lines only once a week or less. Broilers grow quickly, and a line that is correct on Monday is too low by Friday. Adjust lines at least twice weekly from week 2 through week 6.

Ignoring Pan Fill Uniformity

Growers sometimes check only a few pans and assume the rest are fine. Pans can vary significantly along a line. Check pans at the start, middle, and end of each line daily.

Not Prefilling Pans Before Placement

Skipping the prefill step means chicks arrive to empty pans. They spend critical hours searching for feed instead of eating. Always prefill pans and verify feed delivery before birds arrive.

Using the Same Settings for Every Flock

Each flock is different. Bird strain, season, feed formulation, and house conditions all affect feed line management. Do not assume that settings from the last flock will work for this one. Start with the manufacturer's recommendations and adjust based on observation.

Neglecting Chick Trays

Some growers remove chick trays too early or stop filling them before chicks have learned to use the main pans. This creates a gap in feed access that reduces early growth. Transition gradually and monitor chick behavior.

Feed Line Management in Different Housing Systems

The basic principles of feed line management apply to all housing types, but each system has specific considerations.

Tunnel-Ventilated Houses

Tunnel houses have high air speeds during hot weather. Air moving down the house can blow feed out of pans, especially near the tunnel fans. To reduce wastage, keep feed depth at the lower end of the recommended range and consider using pans with higher sides or anti-waste rings.

Air speed also affects feed line adjustment. High air speed can push feed lines, causing them to sway and spill feed. Check line stability and consider adding stabilizers if lines move excessively.

Curtain-Sided Houses

Curtain houses have more variable temperatures and airflow. Feed intake fluctuates with temperature, so you may need to adjust feed line run times more frequently. In cold weather, birds eat more and pans empty faster. In hot weather, feed intake drops and pans stay fuller longer.

Houses with Built-Up Litter

In houses with built-up litter, the litter level rises between flocks. This changes the effective height of the feed lines relative to the birds. You may need to adjust lines more frequently in houses with deep litter.

Multi-Story and High-Density Houses

Houses with more birds per square meter require more feeding space. Check that pan spacing provides adequate access for all birds. The general guideline is one pan per 60 to 80 birds, depending on pan size and bird age.

Feed Line Management and Bird Welfare

Feed line management directly affects bird welfare. Birds that cannot reach feed experience hunger and stress. Birds that waste feed and spill it into litter develop footpad lesions and breast blisters. Both conditions are welfare concerns and can affect audit scores and processing plant acceptance.

Reducing Feed Competition

Aggressive birds can dominate feed pans and prevent smaller birds from eating. Proper feed line height reduces competition by making it harder for large birds to guard pans. Providing enough pan space also reduces competition. If you see birds fighting at pans, check pan spacing and line height.

Preventing Litter Problems

Feed spilled into litter creates wet, crusty conditions that damage bird feet and breasts. Keep feed lines adjusted to minimize spillage. If you see feed accumulating under pans, correct the problem immediately and remove the spilled feed from the litter.

Meeting Audit Requirements

Many poultry companies conduct welfare audits that include feed line checks. Auditors look for feed lines at the correct height, pans with adequate feed, and birds with good body condition. Keeping your feed lines properly managed helps you pass audits and maintain your grower contract.

Recordkeeping for Feed Line Management

Good recordkeeping helps you identify trends and problems before they become serious. Keep a simple log for each flock that includes the following:

Daily Records

• Date and bird age
• Feed line heights for each line
• Feed depth observations
• Daily feed consumption
• Any equipment problems or repairs
• Weather conditions that affect feed intake

Weekly Records

• Average body weight
• Coefficient of variation
• Feed conversion ratio
• Mortality and culls
• Feed line adjustments made

Flock Summary

• Total feed used
• Total weight gain
• Feed conversion ratio
• Problems encountered and solutions
• Recommendations for next flock

Review your records between flocks and compare performance across flocks. This helps you identify management practices that work and those that need improvement.

When to Call a Veterinarian or Extension Agent

Most feed line problems are mechanical and can be solved by the grower. However, some situations require professional help. Call your service technician, veterinarian, or extension agent if you see any of the following:

Sudden Drop in Feed Intake

If feed consumption drops by more than 10 percent in a single day and does not recover within 24 hours, there may be a disease problem. Infectious diseases such as coccidiosis, necrotic enteritis, and viral infections can cause rapid decreases in feed intake.

Uneven Crop Fill

If you find many chicks with empty crops after 24 hours, despite feed and water being available, there may be a broader problem. Chicks may be too cold, too hot, or stressed. A veterinarian can help identify the cause.

Excessive Feed Wastage

If you cannot identify the cause of feed wastage after checking line height, pan depth, and equipment condition, an extension agent or service technician can provide a fresh perspective.

Signs of Disease

If birds show signs of illness such as lethargy, diarrhea, respiratory distress, or sudden death, contact a veterinarian immediately. Do not wait to see if the problem resolves on its own.

Equipment Failure You Cannot Fix

If the feed system has a major failure that you cannot repair, such as a broken drive unit or a collapsed auger tube, contact your service technician. Do not attempt repairs that are beyond your skill level or that could create safety hazards.

Feed Line Management in Special Situations

Some situations require adjustments to standard feed line management practices.

Hot Weather Feeding

During hot weather, birds reduce feed intake to lower heat production. To maintain intake, feed during the cooler parts of the day. Run feed lines more frequently in the early morning and evening. Keep feed fresh by avoiding long periods of feed sitting in pans.

Cold Weather Feeding

During cold weather, birds eat more to maintain body temperature. Keep pans filled and check feed lines more frequently. Feed that sits in pans can become cold and less palatable. Run feed lines more often to keep feed moving.

Feed Formulation Changes

When you change feed formulations, such as switching from starter to grower feed, birds may reduce intake for a day or two. This is normal. Monitor intake and adjust feed line settings as needed. Some growers mix the two feeds for a day to ease the transition.

Sick Birds

When birds are sick, they eat less and may not move to feed pans. Lower feed lines slightly to make feed more accessible. Offer feed in chick trays or shallow containers to encourage intake. Follow your veterinarian's advice on feeding sick birds.

Training Employees on Feed Line Management

If you have employees who help manage the flock, train them on feed line management procedures. A well-trained employee can spot problems early and make corrections before they become serious.

Training Topics

• How to check pan height using the back height rule
• How to adjust feed line height using the winch system
• How to check and adjust feed depth
• How to identify feed wastage and its causes
• How to clean and maintain feed pans
• How to recognize signs of feed-related problems
• How to keep accurate records

Employee Checklist

Provide employees with a daily checklist that includes feed line checks. Have them initial each item after completing it. Review the checklist weekly to ensure consistency.

The Financial Impact of Feed Line Management

Feed line management has a direct financial impact on your operation. Consider the following examples:

Feed Wastage

A house that wastes 3 percent of its feed on a 100-ton flock wastes 3 tons of feed. At $400 per ton, that is $1,200 lost. Reducing wastage from 3 percent to 1 percent saves $800 per flock.

Body Weight Uniformity

Poor uniformity means more birds are too small or too large at processing. Processing plants pay premiums for uniform flocks. A flock with poor uniformity can lose $500 to $2,000 in premiums.

Feed Conversion

Feed line management affects feed conversion ratio. A well-managed flock may achieve a feed conversion of 1.60, while a poorly managed flock may reach 1.70. On a 100-ton feed usage, that difference represents a significant cost.

Mortality and Culls

Birds that cannot reach feed are more likely to die or be culled. Reducing mortality by 1 percent on a 50,000 bird flock saves 500 birds. At $2 per bird, that is $1,000 saved.

These numbers show that feed line management is not just a maintenance task. It is a profit center that deserves your attention.

Developing a Feed Line Management Standard Operating Procedure

To ensure consistency, write a standard operating procedure for feed line management on your farm. Post it in the feed room and review it with all employees.

Sample Standard Operating Procedure

1. Preplacement (day before chick arrival) a. Inspect all feed lines and pans for damage b. Prefill feed lines and verify all pans have feed c. Set pan height to 5 to 8 centimeters above litter

1. Daily checks a. Walk all feed lines and check pan height b. Check feed depth in at least 10 pans per line c. Check for feed wastage under pans d. Record feed consumption e. Check for unusual noises or equipment problems

1. Weekly adjustments a. Raise feed lines according to the back height rule b. Adjust feed depth as needed c. Check pan spacing and bird access d. Weigh birds and assess uniformity

1. Between flocks a. Remove all feed from system b. Clean and disinfect all pans and auger tubes c. Inspect and repair or replace damaged parts d. Test controller and sensors e. Lubricate moving parts

Frequently Asked Questions

How often should I adjust feed line height in a broiler house?

Adjust feed lines at least twice weekly from week 2 through week 6. During the first week, check daily because chicks grow rapidly and the correct height changes quickly. After week 6, check every 3 to 4 days. The key is to use the back height rule every time. Set the pan lip level with the back of a standing bird so it must stretch slightly to reach feed. If you see birds standing in pans or feed being scratched out, raise the lines. If you see small birds unable to reach feed, lower the lines.

What is the correct feed depth in a broiler feed pan?

The correct feed depth is 50 to 75 percent of the pan lip height. During the first week, keep feed depth around 50 percent to reduce wastage. As birds grow and feed intake increases, raise the depth to 60 to 75 percent. Feed should be visible at the pan lip but should not spill over. Check feed depth daily and adjust the controller run time or the pan feed ring to maintain the correct depth.

How do I know if my feed lines are too low?

If feed lines are too low, you will see feed spilled on the litter around the pans, birds standing in pans, and birds pushing feed out with their heads and breasts. The pan lip will be below the back height of standing birds. Raise the lines so the pan lip is level with the backs of the birds. Check again after 24 hours to confirm the correction worked.

How do I know if my feed lines are too high?

If feed lines are too high, smaller birds will not be able to reach the feed. You will see a group of smaller birds that appear hungry and are not growing as well as the rest of the flock. The pan lip will be well above the back height of the smallest birds. Lower the lines so the smallest 20 percent of the flock can reach feed with a slight stretch.

When should I transition chicks from chick trays to main feed pans?

Start the transition at day 5 to 7 and complete it by day 10. The main pans should be prefilled and at the correct height before you reduce chick tray feeding. Gradually reduce the number of chick trays you fill over 3 to 5 days. Watch to confirm chicks are using the main pans before removing all chick trays. Abrupt removal can cause chicks to go hungry and reduce early growth.

How can I reduce feed wastage in my broiler house?

Start by checking feed line height and feed depth. Most wastage comes from lines set too low or pans filled too deep. Level all pans and replace any that are cracked or warped. Adjust the controller so pans do not overflow. In tunnel houses, consider using pans with higher sides or anti-waste rings to prevent feed from being blown out. Monitor wastage by placing trays under pans and weighing spilled feed.

What should I do if the last pans on a feed line are empty?

Check the auger for wear and check for blockages in the auger tube. Increase the controller run time so the auger runs longer. If the problem persists, the line may be too long for the drive unit capacity, or the auger sections may need replacement. Check the hopper to confirm feed is flowing into the auger. Feed that bridges in the hopper will cause empty pans at the end of the line.

When should I call a veterinarian about feed intake problems?

Call a veterinarian if feed consumption drops by more than 10 percent in a single day and does not recover within 24 hours, if you see many chicks with empty crops after 24 hours, or if birds show signs of illness such as lethargy, diarrhea, or respiratory distress. A sudden drop in feed intake can be an early sign of disease. Do not wait to see if the problem resolves on its own.

Related Farming Guides

This section will be populated with related farming guides and resources. Check back soon for links to additional articles on broiler management, poultry house ventilation, litter management, and flock health.

Related Clinical & Scientific Guides

• Poultry Farm Fencing: Materials, Design, and Predator Exclusion
• Broiler House Wind Speed and Airflow Measurement
• Broiler House Heating Systems: Types and Efficiency

References

• FAO Poultry Production: https://www.fao.org/poultry-production-products/en/
• USDA APHIS Poultry Health: https://www.aphis.usda.gov/livestock-poultry-disease/avian
• WOAH Avian Influenza: https://www.woah.org/en/disease/avian-influenza/
• FAO Animal Production and Health: https://www.fao.org/animal-production/en/
• WOAH (World Organisation for Animal Health): https://www.woah.org/en/home/

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