8 Natural growth boosters/ promoters for broiler that actually worked

Posted by: Samuel Ezenwankwo 2 years, 5 months ago/ (46 comments)


It is every poultry farmer’s dream to see his or her broiler chickens, growing gracefully and attaining the very much desire weight and height at the expected time. However, this fit is sometimes not always easy to achieve, or it might take more time than required.

For example, a broiler chicken that is expected to reach 2.4kg live weight within 4 weeks of age will now take 7 weeks, and in such a situation the farmer is already running into a loss. 

Natural growth promoters for broilers

Natural growth promoters with antibiotics effects

The reason for this slow growth in broiler might stem from many factors such as feed quality, chicken breed, health status, management, etc.

Among these factors, feed quality affects the growth of broiler chickens the most, and this has lead feed manufacturers into using feed supplements and additives for better growth and performance. These additives are commonly referred to as growth promoters or boosters. 

Also read: 6 smart tips to increase the body weight of your broiler chicken

These growth promoters are mainly antibiotics that are incorporated in feed formulation to boost and promote the growth and performance of chickens, however, their uses have shown many disadvantages like high cost, adverse side effects on the health of birds and long residue properties, antibiotic-resistant bacteria both in animal and man population. 

Consequently, this development has lead to the ban of antibiotics use in feed by WHO and the European Union (EU) in 2006, and even by NAFDAC. Nevertheless, researchers are now seeking natural alternatives to these antibiotics, and there has been a lot of progress in this quest.

So, in this post, I am going to share with you 8 natural growth boosters for broiler that have been researched on and tested. 

1. Garlic as a natural growth promoter for broiler

 Garlic as growth promoter for broilers

Garlic is rich in antimicrobial and inflammatory properties

Garlic ( Allium sativum) is one of the well-researched herbs that have been proven as an effective herbal medicine. Due to its antimicrobial properties, garlic has been tested as an alternative growth promoter for broiler chickens.

Horton and Prasad (1991) reported that garlic as a feed additive, improved broiler growth, feed conversion ratio (FCR), and decreased mortality rate.

Garlic has been shown to increase the growth of important gut bacteria as probiotics. Also, Oloyede and Fasuyi have shown that garlic powder (GP), an inclusion rate of 3g/kg of broiler feed, result in higher growth performance.

Therefore, for a natural growth booster for the broiler, you can incorporate 3g/kg garlic powder in your feed. For instance, for a 25kg bag of feed, you add 75g of garlic powder.

However, they are several ways you can use garlic for chicken, or you can instruct your local feed miller on what to do for a better result.

Also read: 9 Best poultry feeds in Nigeria with their prices for optimal birds' growth

2. Cloves as a natural growth promoter for broiler

Clove has antibiotic properties and aid digestibility

Cloves are the flower buds of the clove tree, an evergreen also known as Syzygium aromaticum.

Cloves are best known as sweet and aromatic spices, but they have also been used in traditional medicine.

Also, Its medicinal properties have been extended to improve growth in livestock, especially in boosting the growth of broiler chicken. Clove at doses of 100-200mg (0.1g-0.2g)/kg seems to improve feed efficiency (David et al, 2012)

For instance, for 25kg feed, you will add 2.5-5g clove essential oil

Also read: Poultry vaccination and schedule for Layers and Broilers

3. Turmeric as a natural growth promoter for broiler  

Turmeric reduces the risk of hyperlipidemia

Turmeric is also known as Curcuma longa of the ginger family, Zingiberaceae, the roof of which is used in cooking and in making Ayurvedic medicine.

It has been shown to have antimicrobial, anti-coccidiosis, and anti-inflammatory properties. It has also been shown to promote the growth performance of broiler chicken.

(Yesuf et al, 2017) concluded that turmeric at ( 1 to 2 g/kg in the total ration) for better and positive results on carcass yield lean meat ( breast meat) production which could reduce the risk of hyperlipidemia and increase consumer acceptability.

This was also confirmed by ( Kafi et al, 2017) that supplementation of turmeric ( Curcuma longa ) improves the growth performance of broilers when added at the rate of 0.75% level as feed additives in broiler ration.

Also read: Blog post: 8 mistakes you must avoid if you want to succeed in poultry farming

4.  Black pepper as a natural growth promoter for broiler

Rich in Vitamin B complex 

Black pepper (Piper nigrum)- iyere in Yoruba, Uda in Hausa, and Uziza in Igbo. It is a flowering vine in the family Piperaceae, cultivated for its fruit, known as a peppercorn, which is usually dried and used as a spice and folk medicine.

It has also been shown to have growth-promoting properties in broiler chicken.

The following vitamins and are found in black pepper, vitamin B complex groups such as pyridoxine, riboflavin, thiamin, and niacin, which explain why it increase digestibility in broiler chicken.

To add black pepper to your broiler diet, you need to add Ikg of black pepper to every 100 kg of feed. This is a percent of black pepper to their feed

5. Bitter Kola as a natural growth promoter for broiler

Bitter Kola is packed with vital nutrients like iron, calcium, fiber, antioxidants and more

Bitter kola (Garcinia kola) is another potential growth promoter in livestock, especially, in broiler chickens.

It has been shown to have antimicrobial properties and a natural growth promoter that you can take advantage of by incorporating it into your feed formula for optimal growth.

Therefore, if you are adding bitter kola to your broiler feed, you are least sure that you have a good growth promoter and an antimicrobial agent in their feed.

To utilize Bitter Kola as a broiler growth promoter, sun-dry, and grind to a powder. Add 25g per 1Kg of feed

Also read: Blog post: 8 Beginner's guide in poultry farming in Nigeria you must follow, If you want to be successful

6. Ginger as a natural growth promoter for broiler


Ginger is believed to improve digestion as well ass kill parasites

 Ginger (Zingiber officinale) is another natural growth promoter used as an alternative to artificial antibiotics. Ginger may act as a pro-nutrient because of the vast active ingredients it has been reported to contain, such ingredients include carbohydrate, protein, lipid, minerals, and vitamins.

A protein-digesting enzyme (Zingibain)    found in ginger is believed to improve digestion as well as kill parasites and their eggs.

Herawati (2010) reported that Hubbard strain broilers fed 2% supplement red ginger in the diet had significantly higher final body weight than those on the control diet.            

Also read: Layers vs. Broilers: Which One Should You Choose?

7. Cayenne Pepper as a natural growth promoter for broiler


Cayenne pepper has antibiotic properties

Cayenne pepper (Capsicum annuum ) is one of the phytobiotics with a high content of pharmacologically active ingredients.

It was reported that adding cayenne pepper to the feed diet of chickens will increase and boost appetite and feed consumption or metabolism.

Cayenne pepper is also known to kill gut worms and is effective for the treatment of coccidiosis. (Puvaca et al, 2015 ) observed that cayenne pepper powder at an inclusion rate of 0.5g/100g of broiler feed works great in boosting the bodyweight of broilers.

It has also shown the potency to replace broad-spectrum antibiotics known as Oxytetracycline (OTC), which is used in the treatment and prevention of diseases as well as improving digestibility in broiler chickens.                                                                                                                                                           

    Also read:   How to Stop watery whitish, greenish, brownish-yellow, and bloodstain in your Chickens poops for full Recovery                                  

Thyme as a natural growth promoter for broiler

Thyme leaves

Thyme ( Thyme Vulgaris )is not only used as a spice but also useful as herbal medicine.

Thymol and carvacrol are the major components of herbal oil, which form 20 -25% thyme extract, and showed considerable antimicrobial properties with no negative effects such as residue in animal meat and bacterial resistance.

It was demonstrated that thymol and carvacrol concentrations from 100 to 1000ppm displayed a positive effect on broiler production (Hosseini et al, 2013).

(Youssef et al, 2016) concluded that thyme oil as 1.0g/kg diet may be used as a potential growth enhancer for broiler in the hot region during 1 – 28 days

Therefore, for every 25kg bag of feed production, you add 25g of thyme oil.

 Note: If you are not using it to formulating your feed, you can take it to your local feed miller and instruct him or her on what you want. He or She will be in a better position to mix the feedstuffs and additives for a better outcome.

 if you find this post helpful, please comment and share


David Sola-Oriol, Miquel Nofrarias, Ana Barroeta, J.Gasa Edgar, Garcia Manzamilla. Role of in-feed Clove supplementation on growth performance, intestinal microbiology, and morphology in broiler chicken Research.

Dwi sunarti Prayogi Sunu, Luthfi djahari Mahfudz, Vitus Dwi Yunianto. The probiotic activity of garlic (Allium sativum) extract on Lactobacillus acidophilus

Herawati : Veterinary Medical School University of Brawijaya Malang 65145 Indonesia 2010. The Effect of Red Ginger as Phytobiotics on Bodyweight Gain; Feed conversion and internal Organs condition of Broiler. International Journal of Poultry Science 9/10/:963-967

Kafi, MNUddin, M.j.Uddin, Mmxx Khan, and M.E Haque. Effect of dietary supplementation of Tumeric (Curcuma longa), Ginger (Zingiber officinale) and their combination as Feed Additives on Feed Intake, Growth Performance and Economics of a broiler. International Journal of Poultry Science Volume: 16 Issue: 7 pages 100: 257- 265: 2117

K.Y Yesuf, B.T, Mersso, T.E Bekele. Effects of different levels of turmeric, fenugreek, and black Cumin on Carcass Characteristics of broiler chicken. Livestock Sci 8, 11-17, 2017

T.A, Oloyede, and A.O, Fasuyi. Garlic (Allium sativum) Power as an Additive in Broilers (Finisher Phase ) Part 2: Growth Performance, Hypocholesterolemic Effect, and Economic Implication. Journal of Experimental Agriculture International, 1-14, 2017

Youssef A. Attia, Ahmed A. Bakhashwain, and Nehal K Berth. Thyme oil (Thyme vulgaris ) is a natural growth promoter for broiler chicken reared in a hot climate.



Aisha Abubakar Atabs 2 years, 5 months ago


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Samuel Ezenwankwo 2 years, 5 months ago

You are welcome

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Juliet Dingtsen 2 years, 5 months ago

This post is good. I wish to experiment it and compare to the synthetic medication. But you did not say when to administer these supplements. Do we just start mixing their feed with it from day one? Please give more insight. Thank you.

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Samuel Ezenwankwo 2 years, 5 months ago

You mix it with their feed (from day one) during formulation based on the quantity I gave per Kg.

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Rayhana fila 2 years, 5 months ago

Thank you its helpful.,but incase we didn't find the oil can I use the powder instead

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Rayhana fila 2 years, 5 months ago

Thank you sir but can I use powder if I can't get a good oil

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Samuel Ezenwankwo 2 years, 5 months ago

yes, you can...

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Barbara Johnson 2 years, 5 months ago

Do I just pick one or I can incorporate all of them with their feed?

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Samuel Ezenwankwo 2 years, 5 months ago

Not that you cannot mix, but not all combinations will go well. It is better you take one at a time.

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Abimbola Ajuwon 2 years, 5 months ago

Can I mix it with there water?

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Samuel Ezenwankwo 2 years, 5 months ago

You can, but for consistency it preferably you mix it with their feed. Moreover, some blend well with feed than in water. For instance, hot pepper will be unsafe for the birds, it can spill into their eyes.

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Ighoteguono 2 years, 5 months ago

Thanks for this but can we put this in their water as well?and can once use a mixture of these?

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Samuel Ezenwankwo 2 years, 5 months ago

You can put it in water, but for consistency it is preferably you mix it with their feed. You can combine them but not all combination goes well.

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Abiala B. S. 2 years, 5 months ago

Thank you for your discovery and dissemination of findings.

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Samuel Ezenwankwo 2 years, 5 months ago

Thanks you Abiala.

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Tayo Nduka 2 years, 3 months ago

Sir, this is a great work done. Welldone. Please will this replace vaccination? And if not, what vaccines and at what time do we give the birds.
God bless.

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Samuel Ezenwankwo 2 years, 3 months ago

Thanks Nduka. The organic supplements is not organic vaccines but an organic growth promoters.

Although, some of them have antibiotic effects.
We have different vaccines for preventing different diseases, and different vaccination schedule for different breed. I have to know you breed ( layer or broiler) before I can give you a recommended vaccination schedule.

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Patman Farms 2 years, 1 month ago

Thanks for the update, it's highly enlightening. But how can I get clove essential oil and thyme oil?

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Lamidi Adisa 2 years, 1 month ago

Thanks for being there for us.
I am just breeding broiler for the first time I will be very happy if I can get schedule for there vaccine and have mixed the following ingredients : garlic, ginger,thyme, tumeric and cayenne pepper all is in powder form how do I go about it,they are 9 old today. thanks

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Samuel Ezenwankwo 2 years, 1 month ago

It is my pleasure. If you get this, please email me. thanks.

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Maryam alhassan 2 years, 1 month ago

Thank you sir and maygod bless you and prosperity your life sir can you give me your number because I want to contact your when I get them

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Samuel Ezenwankwo 2 years, 1 month ago

it is my pleasure Maryam. email me on, [email protected]

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Seipati Sibiya 2 years ago

Thank you, this is very informative and i will definitely try it

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Ibukunoluwa 2 years ago

Weldone for the work done, sir, can I get a formula for broilers to grow fast?

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Samuel Ezenwankwo 2 years ago

you email me @ [email protected].

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Abdulrazak Abdulrahaman Ado 2 years ago

pls what do i do to my 40 days broiler to gain weight faster and grow well

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Samuel Ezenwankwo 2 years ago

read this article http://poultryfarmguide.com/blog/6-smart-tips-to-increase-the-body-weight-of-your-broiler-chicken/

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Anumba Kanorue 1 year, 7 months ago

The issue of cost benefit analysis have to be considered as the high cost of feed with high cost of supplementation will impact negatively on selling price of the Broilers as these supplements are used by man in their food please do your research and come up with the most economical natural growth boosters in the face of rising cost of feed thanks

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Samuel Ezenwankwo 1 year, 7 months ago

You are right, Mr. Anumba. It is still a work in progres.

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ALUBARIKA ASIWAJU FARMS 1 year, 7 months ago

Thanks alot for dis

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ALUBARIKA ASIWAJU FARMS 1 year, 7 months ago


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Morakinyo Emmanuel 1 year, 5 months ago

Well done and thank you for the update. Please, can share with me feed formula that will enhance growth rate of broiler. God bless you sir.

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Miracle Ekemezie 1 year, 4 months ago

Please can I mix the eight (8) of the process in the prescribed quantity in a 25kg bag at the same time?

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IFEOMA AMOBI 1 year, 4 months ago

Thanks for this information. Pls will it be effective for birds that are already six weeks old that did not weigh as expected?

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Mathias Precious 11 months, 3 weeks ago

How do I use all of this by mixing of what

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Iniobong Akpan 10 months, 1 week ago

Thanks for this well researched work. Do I have to add the spices to their feeds on a daily basis or do I have to use one spice at a time for optimum result? Thanks for your time.

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Samuel Ezenwankwo 10 months ago

You can mix them but you do not use spices on a daily basis just occasionally. Like twice a week and reapply after two-three weeks

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Adewale Adeyemi 4 months, 3 weeks ago

Good morning sir, please i read the article and it's superb but I am confused about the know how.

Please how do I mixed all this to meet the requirements, especially now that the feed manufacturers are killing and milking us...

I'll be forever grateful if you can help me with feed formula God bless you.

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Samuel Ezenwankwo 3 months, 2 weeks ago

Send an email to [email protected]

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John iruke 4 months, 3 weeks ago

If the mixture is not to be used daily how can I determine the quantity to be used at each given time?

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