# American Pekin Duckling: Care and Growth Guide
The American Pekin is the white, heavy-bodied duck most people picture when they hear the word duck. It is a fast-growing meat breed, and that single fact shapes nearly every decision you will make during the first two months of a duckling's life. An American Pekin duckling can grow from roughly 50 grams at hatch to well over 1.8 kilograms (about 4 pounds) by nine weeks of age [1]. That growth rate is the reason Pekin ducks eat heavily, drink heavily, soil bedding quickly, and need a brooder that is warm, dry, and correctly stocked from day one.
This guide covers brooding temperatures, space, feeding, niacin, water management, growth milestones, and the health problems that show up most often in backyard Pekin ducks. It is written for the owner raising a small flock of American Pekin ducklings for meat, eggs, or companionship. The care targets here are grounded in published research on Pekin and other meat-type ducks, and they are meant to be practical rather than commercial-scale.
This article is educational and is not a substitute for veterinary diagnosis or treatment.
## At a Glance
| Attribute | Detail |
|--|--|
| Breed name | American Pekin (White Pekin) |
| Primary purpose | Meat, with secondary egg production |
| Day-old weight | Approximately 40 to 53 grams [2][1] |
| Weight at 9 weeks | Approximately 1,813 grams (about 4 pounds) in field conditions [1] |
| Growth rate | Rapid, with average daily gain near 83 grams over nine weeks in a field study [1] |
| Feathering | Down at hatch, full juvenile feathering developing through weeks 4 to 7 |
| Temperament | Calm, hardy, and adaptable to backyard management |
| Housing | Deep litter or floor pens with dry bedding [3] |
| Water | Clean, cool water available at all times, ideally from a nipple or pin-metered system rather than open troughs [4] |
| Lifespan | Not established in the reviewed sources for backyard flocks |
| Grooming | Minimal, but bedding and water cleanliness require daily attention |
| Good with children | Supervision required, as with any poultry |
| Key nutritional concern | Niacin adequacy for waterfowl |
| Key management concern | Fast growth, high feed intake, and wet litter |
## History and Purpose of the American Pekin
The Pekin is a meat duck. It was developed for efficient muscle growth, and modern White Pekin lines are selected for body weight gain and feed conversion. Research on White Pekin ducks consistently treats the breed as a fast-growing meat bird, and studies measure body weight, average daily gain, and feed conversion ratio as the primary performance outcomes [5][6].
That purpose matters to backyard owners. A Pekin duckling is not a slow-growing ornamental breed. It is built to convert feed into body mass quickly, and it will do so whether you intend to process it or keep it as a pet. The practical consequences are a large appetite, rapid weight gain, and a body that places real load on the legs and feet during the first weeks of life.
## Appearance and Growth Pattern
American Pekin ducklings hatch covered in yellow down. Within the first two weeks, the down begins to be replaced by juvenile feathers, and by roughly week seven to eight the bird looks largely feathered. Commercial Pekin studies routinely run starter diets from day 1 to day 21 and grower diets from day 22 to day 42, which reflects the natural shift in nutritional needs as the duckling grows [3].
The breed's growth is front-loaded. A large share of total body weight is added in the first three weeks. Studies on starter Pekin ducks focus specifically on the 1 to 21 day window because that is when nutritional shortfalls have the largest effect on final body weight and feed efficiency [7][5]. By the time a Pekin duckling is three weeks old, it is no longer a fragile chick-like bird. It is a rapidly growing duck with a substantial appetite.
## Brooding the American Pekin Duckling
A Pekin hen with day-old ducklings, illustrating the brooding stage covered in this section. Image: Dakota Lynch, CC BY-SA 3.0, via Wikimedia Commons.
Brooding is the single most important phase of Pekin care. The goal is simple: keep the ducklings warm, dry, fed, and hydrated while their down and juvenile feathers develop.
### Starting Temperature and Weekly Reductions
Start the brooder at approximately 90°F (32°C) during the first week. Reduce the temperature by about 5°F (3°C) each week after that. This schedule brings you to roughly 85°F (29°C) in week 2, 80°F (27°C) in week 3, and 75°F (24°C) in week 4. By the end of week 4 or early in week 5, most Pekin ducklings are feathered enough to move to unheated housing if ambient temperatures are mild.
Published research on post-hatch brooding temperature in Pekin ducks used an initial temperature of 35°C (95°F) for days 1 to 3, then reduced birds to 20°C, 23°C, 26°C, or 29°C from day 4 to day 21 [8]. That study found that the cooler brooding groups had lower feed conversion ratios at 15 and 18 days, meaning they converted feed to body weight more efficiently during that window, but by day 42 there were no significant differences in body weight, average daily gain, feed intake, or feed conversion ratio among the four temperature groups [8]. The practical takeaway is that moderate early temperature differences do not permanently change growth, but a duckling that is chilled or overheated in the first days will suffer. Use the 90°F starting point and the 5°F weekly reduction as your working schedule, and adjust based on duckling behavior.
### Reading Duckling Behavior
Ducklings tell you whether the temperature is right. If they crowd together directly under the heat source and peep loudly, they are cold. If they spread to the far corners of the brooder and pant, they are too warm. If they move freely between the heat source, feed, and water, the temperature is appropriate. Adjust the heat source height or output rather than guessing at a number on a thermometer.
### Brooder Space
Plan for roughly 0.5 to 1 square foot per duckling at the start. Pekin ducklings grow fast, so that space allowance is temporary. By the end of week 2, you will need closer to 1.5 to 2 square feet per bird, and by week 4 you should be planning for 3 to 4 square feet per duck in the grow-out area. Crowding in a Pekin brooder produces wet litter, dirty feathers, and foot problems, all of which are avoidable with adequate space and dry bedding.
### Bedding and Litter
Bedding choice affects growth. A 42-day study of White Pekin ducks compared coco peat, rice husks, and sawdust as bedding materials and found that ducks raised on rice husks had higher body weights at day 42 and improved daily gains over the entire 42-day period [3]. Ducks on rice husks also showed higher feed intake during the grower phase and across the full trial [3]. A separate study on Muscovy ducks found that growth performance was not significantly affected by litter type, but that ducks on wood shavings and sand showed more feeding and leg or wing stretching behavior than ducks on other litters [9]. The consistent message is that dry, absorbent, well-managed litter supports both growth and normal behavior. Wet litter does the opposite.
### Water Management
Water is where Pekin brooding most often goes wrong. A study comparing water troughs to pin-metered water lines in grow-out Pekin ducks found that ducks housed with water troughs had worse scores for eyes, nostrils, feather quality, feather cleanliness, and foot pads [4]. The trough water also had higher iron, nitrites, pH, and bacterial growth, including higher E. coli, coliforms, and Staphylococcus counts [4]. Water troughs and open waterers are convenient for ducklings, but they get filthy fast. If you use an open waterer, refresh it several times a day and keep it positioned so that spilled water does not soak the bedding. Nipple or pin-metered systems keep water cleaner, but young ducklings may need a shallow open source until they learn to drink from a nipple.
Ducklings also need water deep enough to submerge their nostrils and clear their eyes. A shallow dish that only wets the bill is not enough for a duck. Provide a water source deep enough for bill dipping, and place it on a raised, absorbent surface so runoff does not saturate the brooder floor.
## Feeding the American Pekin Duckling
Pekin ducks eat more than most backyard poultry keepers expect. High feed intake is a normal feature of the breed, not a sign of a problem. The job is to make sure that intake is nutritionally complete, especially for niacin.
### Starter Crumbles and Niacin
Feed a waterfowl starter crumble formulated for ducks. Do not rely on chick starter alone. Ducklings have a higher niacin requirement than chicks, and niacin deficiency causes leg weakness, reluctance to walk, and abnormal gait. This is one of the most common and most preventable problems in hand-raised Pekin ducklings.
If a duck-specific starter is not available, a chick starter can be used only if niacin is supplemented according to a veterinarian's or nutritionist's direction. Do not guess at the amount. Niacin is water-soluble, and ducklings drink heavily, so a niacin supplement added to drinking water is one option, but the concentration must be correct. Brewer's yeast is a traditional niacin source, but its niacin content varies and it is not a reliable substitute for a properly formulated waterfowl starter.
### Protein, Amino Acids, and Energy
Pekin ducklings have specific amino acid requirements during the starter phase. A study of male White Pekin ducklings from hatch to 21 days estimated the standardized ileal digestible lysine requirement at approximately 1.00% for final body weight and weight gain, and 0.98% for feed efficiency, using linear-plateau regression [5]. A separate study on starter Pekin ducks from 1 to 21 days examined pantothenic acid, another B vitamin, and found that ducks fed a pantothenic acid-deficient basal diet had the lowest body weight, average daily weight gain, average daily feed intake, and breast meat yield, along with poor pantothenic acid status, fasting hypoglycemia, and elevated plasma uric acid [7]. Supplementation corrected these effects, and the parameters responded linearly or quadratically as dietary pantothenic acid increased [7].
The lesson for owners is that B-vitamin adequacy in the starter phase is not optional. A complete waterfowl starter formulated to meet duck requirements covers niacin, pantothenic acid, and the other B vitamins in one product. Mixing your own starter or substituting chick feed without adjustment is where deficiencies appear.
Dietary energy also matters. A study of White Pekin ducks over 21 days tested apparent metabolizable energy levels from 2,700 to 3,200 kcal/kg and measured growth performance and carcass traits [6]. The study was designed to estimate the dietary energy requirement for meat-type Pekin ducklings [6]. For backyard owners, this reinforces a simple point: Pekin ducklings are not a low-input bird. They need a calorie-dense, complete starter to express normal growth.
### Feed Form and Feeding Management
Starter crumbles are the standard form for young ducklings. Crumbles are easier for a small duck to pick up than pellets and produce less waste than mash. Provide feed in shallow, clean feeders that ducklings can reach without stepping into. Pekin ducklings will walk through feed and water if given the chance, so feeder design matters as much as feed quality.
Feed intake rises steadily through the first weeks. Expect a Pekin duckling to eat more each week than the week before. This is normal. Do not restrict feed in a growing Pekin duckling unless a veterinarian has diagnosed a specific problem, because restricted intake during the starter phase reduces body weight gain and feed efficiency [5].
### Waterfowl-Specific Feeding Cautions
Do not feed medicated chick starter that contains a coccidiostat labeled for chickens only. Some of these products are not approved for ducks and can be toxic. Read the label and confirm the product is intended for waterfowl. If you are unsure, ask a veterinarian before offering it.
## Week-by-Week Care Chart for American Pekin Ducklings
| Week | Brooder Temperature | Space per Duckling | Feed | Water | Key Tasks |
|--|--|--|--|--|--|
| 1 | About 90°F (32°C) | 0.5 to 1 sq ft | Waterfowl starter crumbles, niacin adequate | Shallow, deep enough for bill dipping, refreshed often | Establish heat, feed, water. Watch for crowding or panting. Keep litter dry. |
| 2 | About 85°F (29°C) | 1 to 1.5 sq ft | Starter crumbles | Same, increase volume as intake rises | Expand brooder. Check legs for weakness. Refresh wet bedding daily. |
| 3 | About 80°F (27°C) | 1.5 to 2 sq ft | Starter crumbles, transition planning | Same | Watch feathering progress. Increase ventilation without drafts. |
| 4 | About 75°F (24°C) | 2 to 3 sq ft | Starter to grower transition | Same | Begin reducing supplemental heat if fully feathered and weather is mild. |
| 5 | About 70°F (21°C) or ambient if mild | 3 sq ft | Grower feed | Same | Move to grow-out housing if conditions allow. |
| 6 | Ambient | 3 to 4 sq ft | Grower feed | Same | Monitor growth and feet. Keep bedding dry. |
| 7 | Ambient | 3 to 4 sq ft | Grower feed | Same | Most juvenile feathering complete. |
| 8 | Ambient | 4 sq ft | Grower feed | Same | Near market or adult body size depending on management. |
| 9 | Ambient | 4 sq ft | Grower or finisher feed | Same | Field data show average weight near 1,813 grams at this point [1]. |
## Growth Milestones by Week
The table below gives approximate weight ranges and feathering stages for American Pekin ducklings. The weight figures are drawn from published Pekin and meat-duck research and field data, and they are approximate. Individual ducklings vary with genetics, sex, diet, and management.
| Age | Approximate Weight | Feathering | Notes |
|--|--|--|--|
| Day-old | 40 to 53 g [2][1] | Yellow down | Fragile. Needs immediate warmth, water, and starter. |
| Week 1 | 100 to 200 g | Down, beginning wing feather development | Highest risk period for chilling and niacin deficiency. |
| Week 2 | 250 to 450 g | Wing and tail feathers emerging | Feed intake rising sharply. Watch leg strength. |
| Week 3 | 500 to 800 g | Body feathers replacing down | End of the standard starter phase in commercial Pekin production [3]. |
| Week 4 | 800 to 1,100 g | Mostly feathered | Can usually leave supplemental heat if weather is mild. |
| Week 5 | 1,100 to 1,400 g | Juvenile plumage nearly complete | Growth still rapid. Feed intake high. |
| Week 6 | 1,400 to 1,600 g | Full juvenile plumage | Growth rate begins to slow relative to earlier weeks. |
| Week 7 | 1,500 to 1,750 g | Adult-type feathering | Body condition becoming apparent. |
| Week 8 | 1,600 to 1,850 g | Adult plumage | Near processing or adult size for many backyard flocks. |
| Week 9 | About 1,813 g average in field conditions [1] | Adult plumage | Average daily gain over nine weeks near 83 g in the same field study [1]. |
The field study behind the nine-week figure followed 250 one-day-old Pekin ducklings distributed among 25 farmers and recorded growth from 53.17 grams at day-old to 1,812.82 grams at nine weeks, with an average daily gain of 82.97 grams [1]. That is a useful benchmark for backyard expectations. A well-managed Pekin duckling on a complete starter and grower program should land in a similar range.
## Health Problems in American Pekin Ducklings
### Niacin Deficiency
Niacin deficiency is the most common nutritional problem in hand-raised ducklings. It causes leg weakness, an unsteady or bow-legged gait, and reluctance to stand or walk. The cause is almost always a starter feed that meets chick requirements but not duck requirements. Prevention is straightforward: feed a waterfowl starter with niacin adequate for ducks, or supplement niacin under veterinary direction. Treatment of an affected duckling requires veterinary assessment, because leg weakness has several possible causes and the niacin dose for treatment differs from the amount in a maintenance diet.
### Pantothenic Acid and Other B-Vitamin Deficiencies
Pantothenic acid deficiency in starter Pekin ducks produced growth depression, poor pantothenic acid status, fasting hypoglycemia, and elevated plasma uric acid in a controlled study [7]. Affected ducks had the lowest body weight, average daily weight gain, average daily feed intake, and breast meat yield [7]. These signs are not easy for an owner to identify early. The practical defense is a complete starter formulated for waterfowl rather than a generic chick feed.
### Leg and Foot Problems
Fast growth puts stress on the legs and feet of Pekin ducklings. Wet litter, dirty water, and rough flooring all contribute to foot pad problems. The water trough study found that ducks housed with troughs had worse foot pad scores than ducks on pin-metered water lines [4]. Keep bedding dry, keep water clean, and inspect the bottoms of the feet weekly. If a duckling develops a limp, a swollen foot, or a hot spot on the foot pad, contact a veterinarian.
### Wet Feather and Dirty Feathering
Feather quality and cleanliness are welfare indicators in ducks. In the water trough study, ducks with trough access had worse feather quality and feather cleanliness scores than ducks on water lines [4]. A Pekin duckling that stays wet and dirty is at higher risk for chilling and skin problems. Provide clean water, dry bedding, and enough space that the duckling can move away from wet areas.
### Respiratory and Environmental Problems
Ducklings produce a lot of moisture. A brooder that is warm but poorly ventilated becomes humid and ammonia-heavy. Ammonia irritates the eyes and respiratory tract. The water trough study documented higher bacterial growth and worse nostril and eye scores in ducks with trough water [4]. Ventilate the brooder without creating drafts, and remove wet bedding daily. If you smell ammonia, ventilation is inadequate.
### When Growth Is Not Normal
A Pekin duckling that is not gaining weight, is reluctant to move, or has a visibly abnormal gait needs veterinary evaluation. The causes range from nutritional deficiency to infection to injury, and the treatments differ. Do not attempt to diagnose leg weakness at home by adding supplements at random.
## Housing and Management Beyond the Brooder
Once Pekin ducklings are feathered and off heat, they move to grow-out housing. The same principles apply at a larger scale: dry bedding, clean water, adequate space, and good ventilation. The bedding study on White Pekin ducks showed that bedding material can influence growth performance, with rice husks producing higher body weights and improved daily gains over 42 days compared with coco peat and sawdust [3]. Whatever bedding you choose, manage it so it stays dry.
Water management remains the highest-impact daily task. The comparison of water troughs and pin-metered water lines found that troughs were associated with higher water contamination and worse duck body condition scores [4]. If you use troughs, clean and refill them frequently. If you can install a nipple or pin-metered system, it will reduce water contamination and keep feathers and bedding drier.
## Feeding Through the Grower Phase
Commercial Pekin production typically uses a starter diet from day 1 to day 21 and a grower diet from day 22 to day 42 [3]. Backyard owners can follow the same structure. Transition from starter crumbles to grower feed gradually over several days to avoid digestive upset.
Feed intake in the grower phase is substantial. In the bedding study, ducks on rice husks showed higher feed intake during the grower phase from day 22 to day 42 and across the full 42-day period [3]. High intake is normal for Pekin ducks. The goal is to make sure the feed is complete and the ducks have room to eat without competition.
Do not add unproven supplements to a balanced Pekin diet. Many plant and feed additives have been studied in ducks, including Moringa leaf meal, earthworm meal, azolla, pea pod, and others, but the results are specific to the studied conditions and inclusion rates [10][11][2][12][13]. A complete commercial starter and grower program already meets the bird's needs. If you want to use a supplement, discuss it with a veterinarian or poultry nutritionist first.
## Exercise and Behavior
Pekin ducks are calm and adaptable, but they still need space to move, stretch, and forage. The Muscovy litter study found that ducks on wood shavings and sand showed more feeding and leg or wing stretching behavior than ducks on other litters [9]. Behavior is a welfare signal. A Pekin duckling that cannot move freely, stretch, or reach feed and water without obstruction is being housed too densely.
Provide enough space for walking, standing, wing stretching, and lying down comfortably. If you keep Pekin ducks as pets rather than meat birds, they benefit from supervised access to a secure yard or pen with shade and clean water. Ducks are not waterproof as ducklings, so young birds should not be allowed to swim in cold water or stay wet for long periods. Wait until they are fully feathered and the weather is warm before allowing extended water access.
## Grooming and Daily Care
Pekin ducks groom themselves. Your job is to provide the conditions that let them do it. Clean water deep enough for bill dipping and preening is essential. Dirty water defeats the purpose. Bedding should be dry and changed as needed. Check feet, eyes, and nostrils weekly for signs of irritation, discharge, or swelling.
Ducklings do not need bathing in the sense that a dog does. They need clean water to drink and to keep their feathers and nares clear. If a duckling becomes soiled, a shallow warm water rinse followed by thorough drying in a warm area can help, but avoid chilling. A wet duckling in a cool brooder is at risk.
## Finding a Responsible Source
Whether you buy American Pekin ducklings from a hatchery, a farm store, or a local breeder, ask about the birds' health and vaccination history, and confirm the ducklings are eating and drinking before you take them home. Choose ducklings that are alert, active, and have clean eyes and nostrils. Avoid birds with pasted vents, labored breathing, or obvious leg weakness.
If you are adopting adult Pekin ducks, ask about their housing history, diet, and any known health problems. A responsible source will answer questions and will not pressure you to take a bird that is not a good fit.
## Who Should Not Get a Pekin Duckling
Pekin ducklings are not a low-maintenance starter pet. They grow fast, eat a lot, produce a lot of waste, and need daily attention to water and bedding. They are a poor choice for someone who wants a bird that can be left alone for days at a time.
They are also a poor fit for households that cannot provide a secure, dry, well-ventilated space with room to grow. A Pekin duckling that starts in a small box will outgrow it within two weeks. Plan the full grow-out space before you bring ducklings home.
Finally, Pekin ducklings are not ideal for very young children to handle unsupervised. Ducklings are fragile in the first days, and rough handling can cause injury. Supervise all contact and teach gentle handling.
## Limitations and When to Contact a Veterinarian
This article is educational and is not a substitute for veterinary diagnosis or treatment. Individual ducklings vary, and a veterinarian who examines your bird can give advice specific to your situation.
Contact a veterinarian promptly if a Pekin duckling shows any of the following:
- Leg weakness, an abnormal gait, or reluctance to stand or walk
- Labored breathing, nasal discharge, or swollen eyes
- Persistent diarrhea or a pasted vent
- A swollen, hot, or wounded foot pad
- Not eating or drinking for more than a few hours
- Sudden collapse, severe lethargy, or unresponsiveness
- A wound, a prolapse, or any bleeding
- Failure to gain weight over a one-week period despite adequate feed access
Leg weakness in a duckling has several possible causes, including niacin deficiency, injury, and infection. Do not treat it by guessing at a supplement dose. A veterinarian can assess the bird, identify the cause, and recommend the correct treatment.
## Frequently Asked Questions
### What temperature should an American Pekin duckling brooder be?
Start at approximately 90°F (32°C) in week 1 and reduce by about 5°F (3°C) each week. Watch duckling behavior and adjust the heat source rather than relying only on a thermometer.
### How much space does a Pekin duckling need?
Plan for roughly 0.5 to 1 square foot per duckling at the start, increasing to 3 to 4 square feet per bird by the time they are feathered and in grow-out housing.
### Do Pekin ducklings need more niacin than chicks?
Yes. Ducklings have a higher niacin requirement than chicks, and niacin deficiency causes leg weakness. Feed a waterfowl starter with niacin adequate for ducks, or supplement under veterinary direction.
### What should I feed an American Pekin duckling?
Feed a waterfowl starter crumble formulated for ducks from day 1 to about day 21, then transition to a grower feed. Do not use chick starter alone unless niacin is properly supplemented.
### How fast do Pekin ducks grow?
Pekin ducks grow fast. A field study recorded growth from about 53 grams at day-old to about 1,813 grams at nine weeks, with an average daily gain near 83 grams [1].
### When can Pekin ducklings go outside?
Most Pekin ducklings can move to unheated housing once they are fully feathered and the weather is mild, typically around week 4 to week 5. Reduce heat gradually and watch for chilling.
### Why is my Pekin duckling limping?
Leg weakness in a duckling can come from niacin deficiency, injury, or infection. Contact a veterinarian for an examination rather than adding supplements at random.
### Are open water troughs bad for Pekin ducks?
Open troughs are associated with dirtier water and worse duck body condition scores than pin-metered water lines [4]. If you use troughs, clean and refill them frequently and keep bedding dry.
## Related Articles
- [Duck Brooding Setup: Heat, Space, and Safety for Ducklings](/knowledge/animal-farming/alternative-livestock/duck-brooding-setup-heat-space-safety-ducklings)
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- [Winter Care for Backyard Ducks](/knowledge/veterinary-medicine/backyard-poultry/winter-care-backyard-ducks)
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## Sources
1. [Growth Performance, Carcass Traits, and Economic Aspects of Pekin Duck Growing in Dhamrai Area of Bangladesh](https://doi.org/10.36380/jwpr.2025.34)
2. [Effect of Feeding Earthworm Meal As an Alternative Protein Source Replacing Fish Meal on The Performance of White Pekin Ducks](https://doi.org/10.56093/ijan.v42i3.8)
3. [Differences in bedding material could alter the growth performance of White Pekin ducks raised for 42 days.](https://pubmed.ncbi.nlm.nih.gov/37093901/)
4. [Increased water contamination and grow-out Pekin duck mortality when raised with water troughs compared to pin-metered water lines using a United States management system](https://pubmed.ncbi.nlm.nih.gov/26769272/)
5. [Standardized ileal digestible lysine requirements based on growth performance of White Pekin ducks for 21 days after hatch.](https://pubmed.ncbi.nlm.nih.gov/40264529/)
6. [Dietary effect of energy levels on growth performance and carcass characteristics of White Pekin duck over 21 days.](https://pubmed.ncbi.nlm.nih.gov/35709127/)
7. [Effects of Pantothenic Acid Supplementation on Growth Performance, Carcass Traits, Plasma Parameters of Starter White Pekin Ducks Fed a Corn-Soybean Meal Diet.](https://pubmed.ncbi.nlm.nih.gov/34679892/)
8. [The effects of post-hatch brooding temperature on the growth performance, meat quality and serum index of Pekin ducks](https://pubmed.ncbi.nlm.nih.gov/40554899/)
9. [Effect of different litter materials on some behavioral patterns, growth performance, welfare indices, and carcass traits of Muscovy ducks.](https://pubmed.ncbi.nlm.nih.gov/40170004/)
10. [Effects of dietary inclusion of Moringa oleifera leaf meal on growth performance of Muscovy ducklings (Cairina moschata).](https://pubmed.ncbi.nlm.nih.gov/37946429/)
11. [Dietary Supplementation of Silybum marianum Seeds Improved Growth Performance and Upregulated Associated Gene Expression of Muscovy Ducklings (Cairina moschata).](https://pubmed.ncbi.nlm.nih.gov/36421486/)
12. [Effect of supplementing azolla and empty pea pod on growth performance, blood biochemical metabolites and meat quality in White Pekin ducks](https://doi.org/10.56093/ijans.v93i10.134588)
13. [Dietary supplementation of Moringa leaf powder improves the productive and reproductive performance of Pekin duck](https://doi.org/10.5455/jabet.2024.d44)
