WOG yield. ▪ 高效性能-成活率和肉料比更好 ▪ 与科宝500相比，体重和肉料笔差异很小 ▪ 科宝500-胸肉更宽 ▪ AVIAN 48-胸肉更长更窄 ▪ 胸肉率减少，但腿肉更多 ≈ 出肉率相似
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B. THE LEAST COST WAY
B。衡量的标准（量化标准是什么）？
最低成本
C。育雏
如何摄入最多. 的饲料
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A. GENETIC TRENDS 育种趋势
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Annual Improvement Rates Cobb 500 科宝500每年的遗传进展率
54.8
3公斤需要的
天数
.
43.6
6
< 11.2 days
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Avian 48 / Cobb 500 AVIAN 48/科宝500
Grand Parent祖代
Male line 公系
Line 35 x Line 35
Cobb Male Performance
科宝公鸡性能
Trait 项目
1994
2003
DIFFERENCE
差异
Wt at 42 42日龄体重
2076g
2848g
770g
Wt at 56 56日龄体重
3082g
4064g
982g
Days - 2kg
40.9
32.9
2公斤需要的
天数
< 8 days
Days - 3 kg
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Managing Broilers for Profit
为盈利为目的去管理肉鸡
Adjusting Nutrient Density to the bird’s requirement
根据肉鸡的要求调整营养标准
the cost per kg of live weight produced. 提高经济效益的 最好方法是降低活鸡的每公斤生产成本
Many companies, however, measure production efficiency with indicators like EPEF (Feed Conversion, Mortality and Average Daily Gain )
Feeding The Cobb Broiler
科宝肉鸡饲养管理
Andrew Bourne – Broiler Specialist (World Technical Support )
Andrew Bourne-肉鸡专家 （世界技术支持）
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Research and Development World Tech Support
4
Body Wt. (grams)
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
Selection Pressure on Body Wt. 2700 体重方面的选种压力
2600 2500 2400 2300 2200 2100 2000
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Trait 项目
Weight体重 Feed Conversion饲料转化率 Eviscerated Yield酮体 Breast Meat胸肉 Eggs / Hen Housed入舍母鸡 产蛋
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Improvement 进展 50 g（克） - 0.02 0.1 % 0.3 % 1
500 AVIAN 48与科宝500特点对照
▪ Hybrid Vigor – Improved Livability and FCR. ▪ Little difference in BW & FCR compared to Cobb 500 ▪ Cobb 500 - Breast muscle is wider. ▪ Avian 48 - Breast muscle longer & narrow ▪ Reduced Breast Yield BUT increased Drum Stick ≈ Similar
Female line 母系
Line 58 x Line 1424 Line 12
Parent Stock父母代 Male Parent父母代公鸡 Female Parent父母代母
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Broiler 肉鸡
7Hale Waihona Puke Characteristics of the Avian 48 VS Cobb
然而，许多公司喜欢使用如EPEF的指标去衡量生产效率（饲料转化率， 死亡率和每天增重）
A drive to maximise Broiler physical performance is not always the most cost
effective business strategy最求肉鸡的最 高生长表现不一. 定是最有效的10 经济策略
Feed & Management
饲料 & 饲养管理
A. Genetic trends
What to expect in the future?
B. What Ration?
LEAST COST
C. Chick Start
How To Maximise Feed Intake
A。育种趋势
未来可以期待什么？
OR
THE COBB WAY 最低成本的方式
或 科宝的方式
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Low Density Nutrition 低营养饲料
The Economics 经济性
The obvious way to increase profitability is by reducing