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Uniformity through the production period
Glenn Bushell Norway February 2017
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Uniformity Stockmanship Uniformity Important to start well
Body weight and skeletal frame Sexual
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Using all of your senses to monitor a flock
Stockmanship Using all of your senses to monitor a flock
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Human senses All human senses are connected to the brain, the most advance “processor” on earth that can interpret data in split seconds Smell Touch Hearing Taste Sight
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Controllers Don’t rely on controllers to manage your house
Controllers need constant adjustment, fine tuning and human input Nothing can replace the human, stockman
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Checking Chick Start, touch
75% Crop Fill at 2 Hours 95% Crop fill at 24 Hours
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Chick Environment - touch
If the feet feel cold on your cheek, the chick is cold! <39.80C
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Eye sight Look at Body language of birds Injuries – naval
feathering – age of the bird Feet, joint swelling, birds off their legs
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Listen to the chick Uncomfortable chicks will be “noisy”
Cold environment Warm environment No water or feed
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Brooder Management Key Points: • Temperature is critical and should be maintained as recommended. • Temperatures should be checked manually at chick level. • Chick behavior should be observed closely and frequently.
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Checking Chick Comfort
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Checking Environment
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Environment, smell carbon monoxide (≤ 10 ppm),
carbon dioxide (< 3000 ppm) and ammonia (< 10 ppm) should never be exceeded.
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Objectives 1. Why is Bodyweight Management Important?
2. Factors having an impact on uniformity 5. Sexual uniformity 3 . How to improve uniformity! 4 Female Bodyweight Control .
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1. Why is Bodyweight Control Important ?
Broiler breeders have the same characteristics as the broiler generation Growth rate Breast meat yield Feed efficiency
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Weight, FCR, Yield
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Breeder Flock Management Challenge !
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2. Factors having an impact on Uniformity
People
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We work with populations, not with individuals !
But every individual counts
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Uniformity of Crop Fill
STOCKMANSHIP
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Feed distribution To achieve target bodyweights for age with good uniformity by means of accurate control of feed allowance and feed distribution. Bums up
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Feed distribution Birds are used to spin feeders – therefore they will gather at the feed source
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Accurate Nøyaktighet Consistent Jevnhet
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3. How to improve uniformity?
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Grading To sort the flock into sub-populations of different average weight, so each group can be managed separately. The aim is for each category to achieve the target bodyweight within the period in which skeletal development and growth is taking place.
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Grading = Handling = Stress =
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Factors to consider People We work with populations not individuals!!
Uniformity Sample weight Feeder and Drinker Space Floor space Vaccination Program Environment Biosecurity People Why do we need to grade? We work with populations not individuals!!
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Uniformity Management!!
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Mediums Large Smalls - 10% + 10%
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When to Grade 1 day grading: by flock source
First grade is at days Allow the populations to settle for at least two weeks before you assess grading Set your own standards to determine if a regrade is necessary
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When to grade? Remember, grading is fire fighting!
Determine the cause the problem. Set your own standard (8% CV, and 80 % UNIFORMITY)
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6 Week Grade
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Physiological Development
FAT Sexual maturity >98 days sexual hormones, Fast ovary and testes growth Dinamic development Muscles Tendons ligaments Skeletal development 85% at 56 days Skeletal Development >95% day 84 (12 weeks) Physical growth stops Cardiovascular & Inmune system, Skeleton and feathers 3 6 8 10 12 15 23 30 Age (weeks)
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12 4 To 12 Weeks 3 6 8 10 15 23 30 Age (weeks) Sexual maturity
FAT Sexual maturity >98 days sexual hormones, Fast ovary and testes growth Dinamic development Muscles Tendons ligaments Skeletal development 85% at 56 days Skeletal Development >95% day 84 (12 weeks) Physical growth stops Cardiovascular & Inmune system, Skeleton and feathers 3 6 8 10 12 15 23 30 Age (weeks)
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Three Important Stages
First four weeks 4 To 12 Weeks 18 to 22 Weeks
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0 - 28 days growth Profile Frame Size Bodyweight Uniformity Fleshing
Ad-Lib feed until body weight is reached, then restrict Better to be 50 to 100 g above target than below Weigh, twice per week for the first 28 days At 35 to 42 days – Select and Grade Change feeding methods prior to grading
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Feed Allocation In Production
18 to 22 weeks Feed for bodyweight Don’t hold back !!!!!!! 5%to Peak Feed program
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When to stimulate? How do I know when the flock is “physiologically prepared” for sexual maturity? Bodyweight: 2.1 – 2.300Kg Fleshing: Breast Score 3 Uniformity: CV of 8 Fat: Development of Fat Pad Outside edges of pinbones rounded
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Objectives for Fat Deposition
Week 22: 0.8 – 1.2% (% body weight) Week 26: 1.3 – 1.8% (% body weight) Week 31: 2.0 – 2.5% (% body weight)
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5. Sexual uniformity
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Female selection Age Keel Shank Feather Drop 4 Weeks 59 mm 67 mm
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Pullets must lose their juvenile feathers at the same time
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Key Points First four week bodyweight First Grade 4 To 12 weeks
Reduce handling of birds as much as possible Feed to body weight from 18 to 22 weeks Light Stimulation
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Remember We are working with a population not with individuals BUT
Every individual counts!
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Take Home Messages STOCKMANSHIP Uniformity is key in all aspects
Weight Body condition Distribution of Bird Feed Water Light Ventilation Let the birds tell us what should be happening! STOCKMANSHIP
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