Cobb Breeder Control Information: Feeding hens after switch and in manufacturing


Be told extra about feeding choices and feathering


calendar icon 9 Might 2024

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8 minute learn

Editor’s observe: This newsletter is an excerpt from the Cobb Breeder Control Information and extra articles will observe. The Information used to be designed to focus on vital elements which are possibly to persuade flock efficiency. To learn or obtain the whole Information or to view Cobb’s different control guides, click on right here.

Early and overdue morning feeding

There are 2 methods for feeding broiler breeders in manufacturing:

Program 1 (Early Morning Feeding):
This program is utilized by 80 to 90 % of manufacturers international. With this technique, feed distribution is initiated at nighttime a couple of mins sooner than the lighting fixtures come on within the morning, or as much as 1 hour after the lighting fixtures activate. This program is most well-liked with unmarried hollow mechanical nests or guide collections. Those nest methods can’t gather massive volumes of eggs and will have to be accrued 4 to five instances in line with day. This program is utilized in excellent acting operations, with minimum mechanical problems in relation to feed distribution.

If the birds are being fed 1 hour after the lighting fixtures are on, transfer off the lighting fixtures when feed distribution begins to stay the birds calm and to get the most productive feed and hen distribution over the duration of the home. The chain feeding methods must make one whole spherical sooner than lighting fixtures are grew to become on.

Program 2 (Past due Morning Feeding):
That is the most popular program when there are control problems reminiscent of feed distribution, eggshell high quality, exertions or top numbers of ground and slat eggs. Despite the fact that this program isn’t as extensively used, it’s reasonably efficient underneath sure prerequisites. Just right environmental keep watch over is essential to forestall any warmth rigidity – don’t use this program right through the most up to date a part of the 12 months with out excellent environmental prerequisites.

Feeding overdue morning or 7 to eight hours after the lighting fixtures activate in darkish out housing, is completed by means of switching off the lighting fixtures right through feed distribution. The lighting fixtures are switched on when the primary loop of chain feeders has been crammed.

Some key issues to imagine when selecting a feeding program

Program 1:

  • Reduces warmth rigidity and metabolic problems when the use of early feeding in tropical areas, particularly right through scorching summer season months or when properties don’t have optimum environmental prerequisites.
  • The hens have a more potent urge for food with shorter intake time when temperatures are cooler within the morning.
  • This program lets in afternoon mating task with fewer interruptions.
  • Apparatus malfunctions may also be detected early within the morning offering extra time right through the day for upkeep.
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Program 2:

  • Start overdue morning feeding right through rearing, in order that birds are conversant in the feeding time. Normally, right through rearing, feeding time is slowly moved from 8 AM at 10 weeks to 11 AM at 16 weeks of age.
  • Delaying feed supply lets in manufacturers to measure dry body weight (body weight sooner than day by day feed intake).
  • For younger flocks, 8 hours after the lighting fixtures are grew to become on, greater than 90 % of the day by day manufacturing has already been laid within the nests. Thus, within the early morning hens won’t go away the nests for feeding.
  • Past due morning feeding lets in a later get started time for farm group of workers. When arriving within the morning, group of workers can move directly to egg assortment.
  • With overdue feeding, group of workers are much more likely to be provide if apparatus malfunctions right through feeding.
  • Past due morning feeding is more straightforward with neighborhood nest methods that let 7 to eight hours of egg manufacturing to acquire at the central egg belt (50cm large).

Body weight building up from onset of lay to height manufacturing

Tracking body weight will increase from onset to height of manufacturing is a great indicator of feeding program control, as it supplies forecasting of height manufacturing and submit height manufacturing persistency. Top manufacturing is decided by means of uniformity, body weight and feeding program within the rearing length. A excellent benchmark is to measure the load acquire of ladies from the onset of lay to height egg manufacturing. Onset of lay being outlined between 0.5 and three.0 % weekly manufacturing. A body weight building up of 13 to fifteen % is used when the body weight of the ladies is on same old and as much as 5 % over or underneath the usual body weight. If the manufacturing within the first week surpasses 3 %, feed quantities may also be in response to the common body weight from the week sooner than to accomplish the calculation.

Research of three flock eventualities:

Within the desk above, an important knowledge to control flock efficiency are age, body weight, feed quantity and share of manufacturing in conjunction with the timing of the break of day building up. The criteria are just a information and use the Cobb 500 Rapid Feather in closed housing for instance. A poultry technician can forecast in response to the onset of manufacturing what the body weight must be at height manufacturing and with the addition of an extra 500 to 600 g (1.1 to one.3 lb) the forecast body weight of the ladies at 65 weeks. This information may well be utilized by the poultry technician to forecast the usual body weight profile for every flock over the manufacturing length. Optimal weighing methods come with weights of ladies and men via 35 weeks of age, after which each 2 weeks from 35 to 50 weeks of age, after which each 4 weeks throughout the finish of the flock.

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Manufacturing building up to height manufacturing


Manufacturing will increase over the primary 3 weeks are a excellent indicator of height manufacturing and persistency. The desk (above) provides an instance of four top acting flocks which are sexually synchronized and with peaks of 88 %. The desk demonstrates manufacturing will increase which are required for excellent height manufacturing. Flocks with a mean get started at 1 to a few % weekly manufacturing must building up manufacturing by means of 10 instances the from the first to the second week and double manufacturing from the second to the third week. This will likely point out excellent sexual uniformity in flocks. Within the desk (above) Flock D resembles Flock A however Flock D begins manufacturing 1 week previous. On the whole, by means of 28 weeks, all flocks must be above 80 % weekly manufacturing efficiency.

Publish height feeding – feed relief

Broiler breeder hens are predisposed to change into over weight and over fleshed, which might have an effect on persistency of lay and fertility. Being over weight may probably lead to an building up in ground eggs because of problem in getting access to the nest packing containers. Top manufacturing is the purpose at which the common share of manufacturing for the previous 5 days starts to lower. Aid within the day by day feed quantity is vital to handle chicken efficiency.

The next are 2 eventualities steadily encountered within the box and examples of answers:

Over feeding at height:

Lower feed by means of 5 g submit height over 2 weeks. Then, lower 1 g every week via 40 weeks. In spite of everything, lower 1 g every week each 4 weeks till the cumulative drop in feed is 7 to ten %. (5 g every week = 1.10 lb in line with 100 hens every week; 1 g every week = 0.22 lb in line with 100 hens every week)

Right kind feeding in height:
Handle height feed for two to a few weeks and reduce slowly with most of one g every week till general drop in feed is 5 to 7 %. Extra feed decreases are imaginable in response to your native prerequisites together with flocks going from iciness to summer season sessions and relying at the power specs of the Breeder 2 feeds. (1 g every week = 0.22 lb in line with 100 hens every week).

Periodic dealing with of the hens, in conjunction with weighing, is vital to resolve delicate adjustments in frame composition, situation and fats reserves of the hens. Further pieces to imagine when figuring out the feed relief time table:

  • Cleanup time: A feed cleanup time of one.5 hours for disintegrate feed and as much as 3 hours for mash feed is regarded as commonplace. A flock that consumes the day by day ration in much less time will not be receiving the vitamins wanted and could also be hungry. Early feed withdrawal submit height may adversely have an effect on manufacturing. Cleanup instances of three.5 to 4.0 hours will lead to over weight birds, deficient uniformity and extra feed quantities in height manufacturing. Prolonged cleanup time too can result in selective consuming – birds settling on coarse debris and leaving the positive debris. This will likely reason a lack of uniformity and function (egg numbers and feminine fertility). Moreover, selective consuming can scale back diet and mineral consumption as those could also be a part of the positive feed fabrics. A quicker height feed withdrawal could also be regarded as.
  • Egg Mass: Egg weight and body weight are without delay correlated. The next body weight will in most cases lead to the next egg weight. Introducing Breeder 2 feed when egg weight is at 60 g for quick feather and 62 g for gradual feather ladies may also be an effective approach to keep watch over body weight and egg weight.
  • Breeder 2 feed must at all times have the similar or reasonably upper power degree as Breeder 1. Power consumption lets in the ladies to provide and handle manufacturing of eggs.
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Rooster feathering right through manufacturing

Feather high quality and canopy of the hens in manufacturing is an important indicator of manufacturing endurance and top fertility. The next are probably the most number one causes for speedy feather loss in breeder hens:

  • Feathering problems in rearing because of control or low crucial amino acid profiles within the pullet grower feed.
  • Inadequate feeder house between 20 and 27 weeks when feed cleanup time may be very rapid.
  • Feed distribution with lighting fixtures on, leading to overcrowding in portions of the home reminiscent of round distribution hoppers. This may additionally lead to thigh scratches from ladies.
  • Feed distributing with lighting fixtures on leads to hens operating alongside feed tracks, inducing rigidity and interior lay or egg peritonitis.
  • Low conditioning and fats reserves at photograph stimulation. Those ladies can display extra feather put on as early as right through height manufacturing.
  • Tight feed restriction grill (<45 mm or 3/4 in) will have an effect on the heavier ladies after 40 weeks. Those ladies may have hassle eating sufficient feed resulting in a drop in manufacturing or even molting. Their heads might revel in feather loss and swelling as a result of the tight grill. This swelling must now not be at a loss for words with swollen head syndrome or pneumo-virus.
  • Over mating by means of men.
  • Any feed passage, flushing or diarrhea lowering the absorption of vitamins.
  • Continual enteritis within the duodenum.

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



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