Cobb500肉鸡生产性能及营养要求（2015年）

2015年7月，美国科宝公司修订和发布了Cobb500肉鸡的生产性能指标和营养需求，详见如下：1、肉鸡生产性能日龄公鸡母鸡公母混养天体重g每日增重g累积饲料转化率累积饲料消耗g体重(g)每日增重（g)累积饲料转化率累积饲料消耗g体重(g)每日增重g累积饲料转化率累积饲料消耗g0420420420156140.2321356140.2321356140.23213272160.4173072160.4173072160.41730389170.5735189170.5735189170.573514109200.67974109200.67974109200.679745131220.771101130210.776101131220.7731016157260.841132156260.841132157260.8411327186290.898167184280.908167185280.9021678217320.949206214290.953204215300.9582069250331250244301.016248247321.01225010286361.046299280361.053295283361.05329811324381.089353318381.098349321381.09735212368431.121412360431.127406364431.12641013416481.144476408481.15469412481.1547414470541.162546460531.166537465531.16554215528581.18623520601.173610524591.17761716590621.197706582621.184689586621.19169817656661.213796646641.197773651651.20678518727711.228893711651.212862719681.22187819803761.242997777661.228954790711.23597620884811.2551109844671.2461052865751.25108121971871.2651228914701.2631155943781.2641192221058871.2781352986721.28412661020801.2841309231145871.29414821060741.30413821099811.3031432241233881.31216181136761.32615061182821.3211562251321881.33217601214781.34416321269831.3371696261409881.35419081294801.36517661354841.3561837271497881.37720621378841.38519081446851.3731985281585881.40222221463851.40320521524861.4022137291677921.42323871549861.42222031613891.4232295301773961.44325581636871.44123581705921.44224583118731001.4627351724881.46125191799941.4626273219781051.47629191813891.47926821895961.47828013320851071.49231111903901.49628471993981.49629813421921071.5133111993901.51230142092991.51231633522991071.53135202083901.52831832191991.5333523624061071.55137322172891.54633582289981.54935453725131071.57139472259871.56635372386971.56837423826201071.5941652344851.58737212482961.58939433927261061.60943862428841.6139102577951.6141484028321061.62846112510821.63541032671941.63143574129381061.64748402591811.6643002764931.65345704230441061.66750732671801.68444992857931.67547864331501061.68653102751801.70947022950931.69750064432561061.70555512831801.73349053043931.71852284533621061.72457962910791.75651103136931.73954534634681061.74360462989791.77853143229931.75956804735741061.76363013068791.855213322931.77959114836801061.78465663147791.8257293414921.861444937861061.80568363226791.84159383506921.81963795038911051.82571013301751.86261473596901.8466165139941031.84473663376751.88463603685891.8668555240951011.86376313451751.90565753773881.887095534194991.88378963524731.92867943859861.9017337544291971.90281613597731.9570153944851.9227580554386951.92184263670731.97372404028841.9437825564481951.9486913741711.99574654111831.9638070574573921.95889563812712.01776904192811.9848315584662891.97892213883712.03879154272802.0048560594748861.99894863953702.05981404350782.0248805604831832.01897514023702.07983654427772.0449050614912812.039100164093702.09985904502752.0659295624990782.06102814162692.11888154576742.0859540635068782.081105464230682.13790404649732.10597852、肉鸡屠宰性能在不同体重情况下，Cobb500肉鸡的屠宰性能（预冷前）如下表所示：（1）母鸡屠宰性能体重g胴体%去骨胸肉%大腿%小腿%翅%160071.8921.8314.488.817.53180072.3222.3614.438.837.51200072.7522.8814.398.857.49220073.1823.4014.348.877.47240073.6123.9214.308.887.45260074.0424.4414.258.907.43280074.4724.9614.218.927.41300074.9025.4814.168.947.39（2）公鸡屠宰性能体重g胴体%去骨胸肉%大腿%小腿%翅%160071.9320.8414.469.157.48180072.2821.1314.499.217.50200072.6321.4114.539.287.51220072.9821.7014.569.357.53240073.3321.9914.609.417.55260073.6822.2814.639.487.57280074.0322.5714.679.547.59300074.3822.8514.709.617.61320074.7323.1414.749.687.63340075.0823.4314.779.747.65360075.4323.7114.819.817.67380075.7824.0014.849.887.68400076.1324.2914.889.947.70420076.4824.5814.9110.017.72440076.8324.8614.9510.077.74460077.1825.1514.9810.147.76480077.5325.4415.0210.207.78 （3）公母混养屠宰性能体重g胴体%去骨胸肉%大腿%小腿%翅%160071.9121.2514.499.007.51180072.3021.6514.489.047.51200072.6922.0514.489.097.51220073.0822.4514.489.137.52240073.4722.8514.489.177.52260073.8623.2514.479.227.53280074.2523.6514.479.267.53300074.6424.0514.479.307.53320075.0324.4514.479.357.54340075.4224.8514.469.397.54360075.8125.2514.469.437.55380076.2025.6514.469.477.55400076.5926.0414.469.527.55 3、营养需求（1）氨基酸平衡的蛋白质配方    氨基酸育雏料育成料育肥料1育肥料 2饲养阶段(日龄）0-10 11-2223-42 43+赖氨酸*100100100100蛋氨酸38404141蛋氨酸 + 胱氨酸75767878色氨酸16161818苏氨酸65666868精氨酸105105108108缬氨酸75767777异亮氨酸67676868*赖氨酸作为基准性氨基酸，以100%比例显示。（2）每吨饲料需要补充的维生素和微量元素水平项目单位育雏料育成料育肥料 1 和 2维生素AMIU10-131010维生素D3MIU555维生素 EKIU805050维生素 Kg333维生素 B1 （硫胺素)g322维生素 B2 （核黄素)g986维生素 B6 (吡哆醇)g433维生素 B12mg201515生物素 (玉米配方)mg150120120生物素 (小麦配方)mg200180180胆碱*mg500400350叶酸g221.5烟酸g605050泛酸g151210锰g100100100锌g100100100铁g404040铜g151515碘g111硒g0.350.350.35*1.由于胆碱具有吸湿性，胆碱需要直接通过混合机来添加，而不能通过预混料的形式添加。2.维生素和微量矿物质含量取决于原料来源和供应商，表中列出的参考数据是指无机矿物质和维生素D3源含量。 3.MIU = 百万国际单位；KIU = 千国际单位； g = 克; mg = 毫克。4.应该始终审查微量元素的添加量，以保证微量元素总量没有超过地方法规范围，如EU1334/2003。（3）肉鸡饲料最小营养需求量推荐 项目育雏料育成料育肥料1育肥料 2 *料量/只250 g 1000 g --饲喂阶段（日龄）0 -1011-2223 -4243 +饲料类型颗粒破碎料颗粒料颗粒料颗粒料粗蛋白 %21-2219-2018-1917-18代谢能 MJ/kg12.5912.9213.2613.36代谢能 Kcal/kg3008308631673191代谢能 Kcal/lb1365140014381448赖氨酸 %1.321.191.051.00可消化赖氨酸 %1.181.050.950.90蛋氨酸 %0.500.480.430.41可消化蛋氨酸 %0.450.420.390.37蛋氨酸 + 胱氨酸 %0.980.890.820.78可消化蛋氨酸和胱氨酸 %0.880.800.740.70色氨酸%0.200.190.190.18可消化色氨酸 %0.180.170.170.16苏氨酸%0.860.780.710.68可消化苏氨酸 %0.770.690.650.61精氨酸 %1.381.251.131.08可消化精氨酸 %1.241.101.030.97缬氨酸 %1.000.910.810.77可消化缬氨酸 %0.890.800.730.69异亮氨酸%0.880.800.710.68可消化异亮氨酸 %0.790.700.650.61钙 %0.900.840.760.76有效磷 %0.450.420.380.38钠 %0.16-0.230.16-0.230.15-0.230.15-0.23氯化物 %0.17-0.350.16-0.350.15-0.350.15-0.35钾 %0.60-0.950.60-0.850.60-0.800.60-0.80亚油酸%1.001.001.001.00*育肥料2如果需要回收，则要求在育肥后期使用相同的育肥料1。