Discussion created on 12/06/2019

Minimum broiler feed requirement (gram/day or gram/bird weight) for its survival and min. requirement for maximum weight gain. Note: Considering broiler is grown in ideal environment and in second scenario broiler is grown in this world with little

For reducing the cost of feed with minimal stress on bird and with maximum weight gain is there any specific or thumb rule formula for calculating minimum or maximum daily feed required (gram/day or gram/bird weight) that bird can fully utilize it nutrition without losing the excess of feed nutrition in feces.

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December 6, 2019
In our part of the world there is a norm that in First week of broiler life provide it feed ad libitum but in second week & third week (may be till slaughter) the feed requirement is calculated by multiplying the number of days & number of birds with constant of 4.5 gram feed, in some houses the constant is 5 g from week four till slaughter. On contrary to this the Ross and Cobb Broiler Performance And Nutrition Supplement as hatched section showed differently, there the feed gram constant is in first week is between 13 g and 5 g and in second week it is 4.9 g, in third week it is between 4.9 g and 5.3 g and in forth week it is between 5.3 g & 5.4 g and in week 5 it is 5.4 g.

In both the case the broiler bird finishes it feed and FCR KPI is better, but first case there is variation in bird size where as in Ross & Cobb feed gram calculation the variation in minimal and weight gain is quicker but the cost of feed increase per bird as the age of bird 33 or above.

For reducing the cost of feed with minimal stress on bird and with maximum weight gain the following below question need answer and this topic is added in the discussion for sharing the experiences;

1: Is there any specific or thumb rule formula for calculating minimum or maximum daily feed required (gram/day or gram/bird weight) that bird can fully utilize it nutrition without losing the excess of feed nutrition in feces.

2: Secondly how much minimum feed quantity requirement (gram/day or gram/body weight) for bird body maintenance.

3: Thirdly how much minimum feed required for required daily weight gain.

There are lot of unknown in finding the answer to this question like disease stress, nutrition value of feed, breed of broiler bird & management etc., but to answer the above question two scenarios can be considered

1: Consider living in ideal world where all the stresses are minimal.

2: Secondly living in practical world where anything (stress) is possible, can happen anytime.
As the feed contribute to 70 to 80% of the final bird cost, a small reduction in cost can save a lot.

Looking forward to professional discussion/ opinion.
Reply
Muhammad Farooq Muhammad Farooq
M Sc (hons) Animal Nutrition
December 19, 2019
Asif Ayaz Khan, MSc, PMP®, PMI-SP®, PMI-RMP® its accoding to weight gain and profile of feed very much variation in raw material and data if we minimize it then precision.maintence feed very as u increase 5 gm its approx maintenace rest is for growth. Feed intake directly relate to target weight gain many factors.
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December 11, 2019

We always feed ad libitum the entire period to support maximum growth, which minimizes the growing period and thus reduces overall maintenance allocation for best FCR.

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December 12, 2019
Thank you for the support.
Mr. Park for average of 2 kg bird (or any other weight that is kept as market standard) what is your target FCR & number of days.
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HARD MAN HARD MAN
Bachelor of Veterinary Medicine
December 12, 2019

This is a good question, but I think no one can answer you. Because most of people feed their broiler ad-libitum. The only feed restriction when the light off.

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December 12, 2019
Mr. Hard Man what is your lighting program, from which day you start/end it and what is the length of the program and the number of off times in a day.
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December 15, 2019

HARD MAN hi.
What is your light in program from day 0 till 39 days?
Thanks
John

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December 12, 2019
Thank you for the support.
Mr. Park for average of 2 kg bird (or any other weight that is kept as market standard) what is your target FCR & number of days.
Mr. Hard Man what is your lighting program, from which day you start/end it and what is the length of the program and the number of off times in a day.
Saving a day in broiler life to market can save a lot.
Reply
Sushil Chandra Sushil Chandra
Master in Poultry Nutrition 1975
December 17, 2019

Good topic
Here we give more importance feeding broiler chicks up to 2 wks by using.prestarte at 400 g per chick to get around 400 g body wt.
Then follow stater feed till 25 days @ 1000 g of feed per bird which is followed by feeding finisher feed up to 35 days to get 2 kg body wt and 1.55 FCR.
The above routine is followed with most of the farms.
Lighting is restricted for first 10 days with brooder temp and brooding house temperature and proper ventilation.
Regards.

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Muhammad Farooq Muhammad Farooq
M Sc (hons) Animal Nutrition
December 19, 2019

What about pre-starter till 0-9 days then starter till 20 days and finisher 21-37 days fcr 1.5 weight 2.5 kg?

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Sushil Chandra Sushil Chandra
Master in Poultry Nutrition 1975
December 20, 2019
Muhammad Farooq
If u are getting 1.5 FCR and 2.5
Kg body wt at 37 days, it’s wonderful

and congrats for the using such good formulation
Regards
Reply
daniel severino daniel severino
Agriculturist
March 14, 2020
Sushil Chandra i think this is the best ideal but how are we gping to controll some overweights snd what the specif specs on cp per prestater and cp on starter for the best mortality ? Quiety detailed but i only need to know a technical tool yo use on the controlling on the birds as well ad stocking density


Thank you
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December 26, 2019

Pls, what is the required % cp and energy in kcal per kg for prestarter, starter and finisher diets?

Reply
Muhammad Farooq Muhammad Farooq
M Sc (hons) Animal Nutrition
December 28, 2019

DR ABUBAKAR GENE Mostly for Broiler prestarter Cp%/ ME kcal kg 22.5 / 3000 with Digestible lysine 1.25% proportionally adjust rest essential 7-8 amino acids, for starter 22/ 3100 dig Lysine 1.20 % and for finisher 21/ 3250 Digestible Lysine 1.15 % this will give better response around 1.49-1.5 FCR using corn soya based diet.

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December 29, 2019
Muhammad Farooq many thanks
Reply
Muhammad Farooq Muhammad Farooq
M Sc (hons) Animal Nutrition
December 31, 2019
DR ABUBAKAR GENE welcome
Reply
December 26, 2019

Lighting program followed by Sushi Chandra not understood.
Restricted for 10 days?
Full lighting program may be given. Mohammed farooq got 1.5kg weight with 2.5kg feed, I guess?

Reply
Atif Hamza Atif Hamza
Animal Nutritionist
March 5, 2020

How about using 80 g pre-starter and 1000 g starter then followed by feeding finisher feed up to 35 days to get 2 kg body wt with 1.45 FCR this by using feed restriction for 6 hrs daily?

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March 19, 2020
Atif Hamza Its good I have seen in commercial broiler in 3rd week and 4th week there is heavy mortality due to high protein diet as well as sub-clinical viral infection like IBD and ND the mortality was not going to stop till harvesting after PM it was showing acitis fatty liver , some people are doubtful for IBH even I myself. But when farmer started feed restriction 12.30 am to 4.30 pm and in the night whole night light is kept off . It was observed that no mortality in the 4th week to harvesting and birds are looking fresh and weight gain also very good . The conclusion is that by feed restriction though there is sub-clinical viral infection the mortality gets controlled mean mortality is due to high protein diet. Mortality at selling age is huge loss that can be controlled feed management .
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March 7, 2020

There are calculations in the literature to calculate the energy requirement per given weight. Brody formula is body weight raised to the power of 0.65. the feed for added growth is calculated at 1.5 FCR.
an other way we tried is full feeding of broilers with pre starter and starter. the approximate feed consumption on 22nd day is around 80gms. we found that the daily feed on ad libitum feed at 40days is around 150gms. we hypothesized and tried limited feeding. we took base feed on 21st day as 80gms. keep adding 3 to 4gms per bird per day on daily basis. this avoided excess feeding especially in hot months resulting in less day mortality and better FCR.
Worth trying. The flocks which achieved about 800gms on 21 days did well on this program.

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