How To... 05 Individually Weigh Broiler Breeders in Rear Why individually weigh broiler breeders in rear? Routine accurate estimates of average body weight allows: • Correct feed allocation to a population during rear and production. • Correct control of both male and female body weights which will optimize performance at every stage of life. • Recording individual body weights from 14 to 21 days of age onwards allows CV% and grading populations to be accurately managed. 01 Why individually weigh broiler breeders in rear?
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Why individually weigh broiler breeders in rear?en.aviagen.com/.../BB...to5WeighBroilerBreederEN15.pdf · Individually Weigh Broiler Breeders in Rear 05 Procedure Birds should be
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How To...
05
Individually Weigh Broiler Breeders in Rear
Why individually weigh broiler breeders in rear?
Routine accurate estimates of average body weight allows:
• Recording individual body weights from 14 to 21 days of ageonwards allows CV% and grading populations to be accuratelymanaged.
01 Why
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The procedure for individually weighing broiler breeders in rearBird HandlingBirds must be handled in a calm and correct way by people who have been appropriately trained. Bird welfare must be a priority at all times.
Note - All scales should be calibrated on a regular basis (at the beginning and end of every weighing) to ensure they are weighing accurately and correct body-weight management is maintained.
Step 1 Suspend / situate scales in a secure, easilyaccessible place in the pen where weighingwilltakeplace.Setthescalestozeroandhaveasecureshackletoholdbirds inplacebeforeweighingbegins.
Step 2 Catchandpenupasampleofat least2%or50birdsperpopulation,whicheverisgreater.Inrear,ifthepopulationsizeisgreaterthan1000birds,samplesshouldbetakenfrom2differentlocationsinthepenorhouse.Samplesshouldbetakenfromtowardsthemiddleofeachpenor house avoiding side wall areas and areas closetoentrancedoors.
CURRRRRENENTT DAD TATTTTTTT METE RICTOOOTATT L WEWEIGII HEHHHHED:D 79AVERAGAGA E WEW IGIIIIIII HTT: 0.471DEVIATION: 000.048888C.V. (%):: 10.2
Band llimits sssssssss Total0.0 320 to 0.3. 39 10.340 to 0.3.33359 10.000000 3636363636636363633666600000000000 tototototottooooo 000000000000.33333333379797797979777797779777997997 22222222222222220.380 to 0.3999 20.400 to 0.4191 40.420 to 0.4393 7770...44440 to 0.44599 120.0 460 to 0.47999 1150.480 to 00.4999 114440.50500 ttototot 000.5. 19 1000.000 5200 toto 0.539 60.545455 0 totoo 0.555595 30.58800000 too 0.59999 2
• Re-draw thebodyweight curve tobringbirdsgraduallybackon to targetby63daysofage.Neverreducefeedlevels;reducethenextfeedincrementordelaythenextfeedincreaseinordertoachievetherevisedbody-weighttarget.
• If birds remain over target weight from 63 days onward, then the target should be redrawn parallel to the profile. Do not attempt to bring these birds back to the profile.Birdsshouldbefedtheleveloffeedtomaintainthisprofile.