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Broilers (Feeding hot environment (Additives (Betain: osmoregulator,…
Broilers
Feeding hot environment
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Vit A, C, D, E and niacin, and electrolytes (Na, K, Cl)
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Additives
Betain: osmoregulator, ↑absorption minerals & trace elements
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全颗粒谷物饲喂
Balance feed with whole grain (wheat, oats and barley-oats and barley should ideally be without husks)=reduce feed costs per ton
=++gut microflora, ↑digestive efficiency &↑litter condition
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Nutrition
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Pre-starter
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Higher nutrient levels, especially AA, Vit E and Zinc
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Immunity stimulants: essential oils, nucleotides, etc.
Intake stimulants: feed form, high sodium, flavors, etc.
Na-Ka-Cl
Cl should be accurately controlled
(NaCl, Lysin hydrochloride, choline chloride)
In pre-starter diets, higher Na can be used to ↑growth rate
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Lighting
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>7d, 5 h darkness, minimum 4 h
4d before depletion→ -1h darkness each day
until 23h light at catching=help feed withdrwal&catching (calm)
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Once set, off time 熄灯时间 must never change for the life of birds
Any adjustment is by adjusting the on time only
Separate sex
growing
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方法
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♂ benefit from + 1-2° Tm during brooding, ∵slower feathering
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Pellet size
1-10 d, 1.5-3 mm
11-18 d, 1.6-2.4 mm diameter, 1.5-3 mm length
18-fini, 3-4 mm dia, 5-8 length
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Performance parameters
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EPEF=100x(livability x BW in kg)/(Age in days x FCR)
European Production Efficiency Factor (the higher the better)
Betaine
1 of the few used by cells to regulate osmotic pressure.
Poultry feed=save choline, ↓carcass fat & aid cell osmoregulation
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