Cobb Breeder Control Information: Segment 2 – Rearing: 4 to eight weeks

Be told extra about feeding strategies for optimum rearing control

calendar icon 4 April 2024

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Editor’s word: This text is an excerpt from the Cobb Breeder Control Information and further articles will practice. The Information was once designed to spotlight essential components which might be in all probability to persuade flock efficiency. To learn or obtain your complete Information or to view Cobb’s different control guides, click on right here.

The brooding section is all for getting the chicks began and adapting them to managed feeding. Within the upkeep section, the principle goals are weight and fleshing keep an eye on. It is necessary all over this section to often deal with the birds to guage their fleshing ratings. Through dealing with the birds often and at other ages, their construction and frame situation shall be higher understood. Chicken situation at photograph stimulation is important. The one method to succeed in the specified chicken situation is with proper weight keep an eye on and common analysis of frame situation or fleshing. The give a boost to methods proceed to broaden and it is very important no longer fall beneath body weight same old for prolonged classes of time.

If the men don’t succeed in goal body weight all the way through the primary 4 weeks, a slight build up in feed quantity is advisable. On the other hand, mild hours will also be higher to permit the men to devour any closing feed within the feeding device.

Feeding strategies for optimum rearing control

Feed allocation methods are used all the way through the rearing section to lend a hand keep an eye on the expansion, weight achieve, and maturation of breeding flocks. Pay attention to any nationwide law that should be regarded as when designing and imposing a feeding program for the rearing duration. Feed allocation would possibly encompass day-to-day feeding (with limited quantities according to chicken according to day) or exchange day feeding (with better quantities according to chicken on days when feed is equipped). The next are examples of feeding methods:

Each and every Day – Birds are fed on a daily basis.
5/2 –
Birds are fed 3 consecutive days adopted through 1 time off; then 2 days of feeding adopted through 1 time off to finish the 7-day cycle. Word: That is the most typical feeding program globally.
– Birds are fed 4 non-consecutive days every week and off-feed for three non-consecutive days (see chart to left).
– Birds are fed each different day.
– 6 days with feed and 1 time off.

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Breeder Feeding Techniques

Each day feeding

In some international locations the native welfare prerequisites require the birds to be fed day-to-day. This feeding way supplies a day-to-day allocation designed to control enlargement, sexual adulthood and into manufacturing.


  • Normalized feeding trend and higher FCR (higher feed absorption within the intestinal tract).
  • Calm flock with commonplace habits and few enteric demanding situations.
  • Diluted feed lets in higher day-to-day feed allocation and due to this fact progressed feed distribution. With dilution, the feed will increase are round +3 g /feminine/week between 5 to 13 weeks of age, and this helps to keep the flock rising extra managed and stops “frog feeding” (converting of weekly feed quantities up and down in line with body weight fluctuations).
  • Extra simply executed when mash feeds are getting used that take extra time to be ate up.
  • Caretakers engage with the flocks day-to-day as a part of the traditional feeding agenda.

Demanding situations

  • Feed distribution must be ideally suited and feed wishes to head round totally to ensure sufficient feeder house according to chicken.
  • Dilution of the feed is vital for feed distribution, which will increase the overall feed utilized in rearing and feed value (extra milling, delivery and garage).
  • Uniformity is incessantly tougher to deal with, particularly after 12 weeks of age because of very rapid feed cleanup occasions.
  • Birds have smaller vegetation and gizzards on account of diminished feed quantities as in comparison to different feeding methods.
  • Staff should be provide at particular occasions to test feed and water availability.
  • On days of particular person chicken vaccinations feed is delivered later than the scheduled time. Vaccination crews wish to end through midday or early afternoon to provide sufficient time afterwards for feeding and water consumption. The sunshine program would possibly wish to be prolonged on vaccination days.

6/1 program

This feeding program is usually used as a bridge or intermediate step to development to a 5/2 or skip-a-day program. In a similar fashion, it may be used to go back to day-to-day feeding on the finish of the rearing duration. This program is most often presented within the third week for 1 week previous to the 5/2 or skip-a-day program. Likewise, the 6/1 program may be used on the finish of rearing (18 to twenty weeks) for a 1 to two week duration relying on how briskly birds devour the feed and if there are feed distribution problems.

5/2 program

That is probably the most frequently used program in rearing international and serves as a compromise between day-to-day feeding and skip-a-day feeding. It’s used basically to deal with or fortify just right feed distribution and uniformity. Usually, this program is used all the way through the overdue a part of the rising duration, in particular if “feed impaction” (choking) is a matter on feed days when the 4/3 or skip-a-day feeding program is used.

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  • Birds are fed at the similar days each and every week all over the rearing duration.
  • This program will increase the feed quantities offered to the birds on feeding day in comparison to a 6/1 or on a regular basis feeding program.
  • Just right feed distribution over the entire area space with pans and chains.
  • Could also be carried out at 3 to 4 weeks of age and endured till 16 weeks of age.
  • Can also be prolonged to 1st egg when feed quantities are small (as an example 100g according to pullet at get started of manufacturing).
  • Used with medium to excessive power feeds which might be fed at decrease feed quantities.
  • Can use the non-feeding days to use vaccinations and “off” feed days can fall on Sunday to create an afternoon with diminished exertions.

Demanding situations

  • Visits must be minimized on non-feeding days and best crucial personnel must behavior exams. Visiting the flock on non-feeding days could make the flock agitated.
  • Visits must be executed on non-feeding days provided that vaccinations are executed.
  • Feeding program isn’t constant all the way through the week since there shall be a duration of three ‘on-feed’ days adopted through an off-feed day after which 2 ‘on-feed’ days adopted through an off-feed day.
  • Flocks show extra pressure similar behaviors at the non-feeding days

4/3 program and Skip-a-day

Those methods are most well-liked when feeding low volumes of a high-density feed (>2900 kcal/kg; (12.08 Mj/kg)), or when feeding house is proscribed. It guarantees an extended feed duration and lets in timid birds to obtain sufficient feed. From 21 or 28 days to 140 days, the an identical of two days feed is given on a unmarried day, with just a scratch feed equipped tomorrow. If low feed quantities will also be given then it’s mainly an off and on day feeding. Because of this with skip-a-day the feed quantity will double (100 % extra) on feeding day. With the 4/3 program the feed quantity is higher through 75 % on a feeding day. This program is used when feed presentation is a pellet or collapse.


  • Improves uniformity as a bigger feed quantity is being disbursed over all the area.
  • Extra not unusual the place there’s a scarcity of feeder house.
  • Feed mill can produce much less feed and no more feed is being transported to the farms decreasing delivery prices.
  • Feed mill has extra capability to hide all of the farms (If the feed mill is at complete capability it turns into the bottleneck within the integration).
  • Vegetation and gizzards are better for birds skilled to devour better quantities of feed. Because of this feed cleanup time in manufacturing may be quicker. This will also be a bonus with scorching climate prerequisites.
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Demanding situations

  • Flocks show extra pressure similar behaviors at the non-feeding days.
  • Can’t feed extra on a feeding day than is being fed in top manufacturing (as an example 165 g in top manufacturing method with skip-a-day a feed quantity of 82.5 g according to day). That quantity is being fed at round 19 to twenty weeks of age. At that time period a metamorphosis should be executed to 4/3 or 5/2 program for a couple of weeks after which alternate to day-to-day feeding.
  • Over intake is a possibility for the flock if the feed quantity on a feeding day is simply too excessive resulting in overeating, pendulous vegetation or even demise. If feed surprise happens, alternate the feeding program to five/2 program.
Calculating feed Intake

Breeder feeding methods case learn about


There’s a important drop in feed cleanup time when the use of an on a regular basis feeding program. Speedy feed cleanup occasions will harm uniformity and make the birds extra apprehensive because the extra timid birds would possibly not be capable to consume or would possibly not have a lot to consume. A crop test straight away after feed cleanup will point out if there’s a feed consumption uniformity factor. A most of two % of the birds must have a small quantity of feed within the crop.


Introduce a 6/1 program for 1 week and at 4 weeks (28 days), introduce a 5/2 program till 18 to 19 weeks. After 19 weeks, go back to day-to-day feeding. It’s imaginable to proceed with a 5/2 or 6/1 feeding program till the week of photograph stimulation when feed quantities are very low or the birds are fed pelleted rations with feed cleanup occasions of lower than half-hour.

Transitioning from day-to-day feeding to an alternate feeding program typically begins when the feed cleanup time is lower than 4 hours, usually between 14 to 18 days of age or into the 3rd week. When moving between selection feeding methods, as an example, moving from 4/3 to five/2, it is very important apply chicken habits and well being. A shift from a decrease feed quantity to the next feed quantity on feed day can result in impaction. Offering the flock with a possibility to drink 30 to 40 mins sooner than feeding can upload moisture to ate up feed. If impacted vegetation are spotted, crop exams after feeding can lend a hand the farm group participants perceive the chicken’s situation after consuming.

To learn or obtain your complete Cobb Breeder Control Information or to view Cobb’s different control guides, click on right here.

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