15. Ming- Optimum Breeder Nutrition - Chinese种鸡的最佳营养.pdf

Optimum Breeder Nutrition 种鸡的最佳营养 Somchit Sooncharernying Ph D Poultry Nutritionist 家禽营养专家 孙秋明 Background 背景 Objectives 目标 Produce as many hatching eggs as possible 尽可能多地生产合格种蛋 Guarantee the maximum hatchability 确保最佳孵化率 Chicks survive and reach performance objectives 雏鸡活力以及达到生产性能标准 Results of Genetics 遗传选育的成果 Breast Meat Yield (% BW) 胸肉率（占体重比例） %Breast 10.7c ±0.1 11.2b ±0.01 17.9a ±0.01 FCRb 28.2c ±0.1 17.0b ±0.01 9.4a ±0.01 (g:g) 1957 1977 2005 Yield p<0.0001 Breast FCR p<0.0001 Source: Renema et al, 2006 Meat Yield of Modern Lines 现代品系的出肉率 Degree of Bodyweight Restriction (Estimated Potential vs PS Target Weights) PS Optimal Body Weight Curve 父母代最佳体重曲线 4500 4000 3500 3000 ) g ( t 2500 h g i e w y 2000 d o B 1500 308 BWT g 1000 500 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 Age (wk) Broiler Estimated Potential vs PS Target Weights Degree of Bodyweight Restriction (Estimated Potential vs PS Target Weights) 肉鸡预测潜力与父母代目标体重 6500 6000 5500 5000 4500 ) 4000 g ( t h 3500 g i e w 3000 y d o B 2500 308 BWT g 2000 Potential g 1500 1