NRC蛋雞飼養(yǎng)標準1998

1、(一) 蛋雞的營養(yǎng)標準（NRC）。NRC標準和企業(yè)標準的主要區(qū)別是維生素的量的差別，考慮道飼料的保存期限，企業(yè)標準維生素的量大大高于NRC標準。1.生長雞的營養(yǎng)標準。表6 生長雞的營養(yǎng)需要（NRC 1998）白殼蛋雞褐殼蛋雞矮小型蛋雞0-6周7-12周12-18周0-6周7-12周12-18周0-9周10-13周14-18周體重450g980g1375g500g1100g1500g500g750g1050 g代謝能Kcal/kg285028502900280028002850285027002700粗蛋白質18161517151418.516.516.0精氨酸1.000.830.670.940

2、.780.621.200.950.72賴氨酸0.850.600.450.800.560.420.900.700.55蛋氨酸0.300.250.200.280.230.190.400.340.34蛋胱氨酸0.620.520.420.590.490.390.750.600.45色氨酸0.170.140.110.160.130.100.200.160.12蘇氨酸0.680.570.370.640.530.350.700.550.42亞油酸1.001.001.001.001.001.000.60.50.5礦物質鈣0.900.800.800.900.800.801.00.900.75有效磷0.400.3

3、50.300.400.350.300.500.450.40氯0.150.120.120.120.110.110.150.140.14鎂mg/kg6005004005704703700.050.050.05鈉0.150.150.150.150.150.150.200.170.17鉀0.250.250.250.250.250.250.050.050.05銅mg/kg5.004.004.005.004.004.00432碘mg/kg0.350.350.350.330.330.330.80.60.6鐵mg/kg806060755656403030錳mg/kg603030562828403020硒mg/

4、kg0.150.100.100.140.100.100.090.090.09鋅mg/kg403535383333554040維生素AIU150015001500142014201420800060006000D3IU200200200190190190200020002000EIU10559.54.74.7201515Kmg/kg0.500.500.500.470.470.47433B12mg/kg0.0090.0030.0030.0090.0030.0030.0080.0060.006生物素mg/kg0.150.100.100.140.090.090.10.0750.075膽堿mg/kg13

5、009005001225850470320240240葉酸mg/kg0.550.250.250.520.230.230.60.450.45煙酸mg/kg2711112610.310.3322424泛酸mg/kg10.010.010.09.49.49.4866吡哆醇mg/kg3.03.03.02.82.82.821.51.5核黃素mg/kg3.61.81.83.41.71.7433硫胺素mg/kg1.01.00.81.01.00.821.51.5注：矮小型蛋雞營養(yǎng)標準為企業(yè)標準,下同。2.產(chǎn)蛋雞的營養(yǎng)標準（NRC）表7 蛋雞產(chǎn)蛋期的營養(yǎng)需要（NRC 1998）不同采食量的日糧營養(yǎng)濃度每只每天需要

6、量（mg或IU）矮小型蛋雞采食量80100120100100g110g95g85g代謝能Kcal/kg29002900290029002900290027002750粗蛋白質%18.815.012.515000150001650016.717.0精氨酸%0.880.700.587007007700.700.88賴氨酸%0.860.690.586906907600.690.86蛋氨酸%0.380.300.253003003300.400.43蛋胱氨酸%0.730.580.485805806450.650.78色氨酸%0.200.160.131601601750.160.20蘇氨酸%0.590.4

7、70.394704705200.470.59亞油酸%1.251.00.831000100011001.01.25礦物質鈣%4.063.252.713250325036003.603.80有效磷%0.310.250.212502502750.250.31氯%0.160.130.111301301450.130.16鎂mg625500420505055500625鈉%0.190.150.131501501650.150.19鉀%0.190.150.131501501650.150.19銅mg/kg？33碘mg/kg0.0440.0350.0290.0100.0040.0040.0350.044鐵m

8、g/kg5645386.04.55.04556錳mg/kg2520172.02.02.22025硒mg/kg0.080.060.050.0060.0060.0060.060.08鋅mg/kg4435294.53.53.93544維生素AIU/kg37503000250030030033045004750D3IU/kg375300250303033500600EIU/kg6541.00.50.55810Kmg/kg0.60.50.40.10.050.0550.81.0B12mg/kg0.0040.0040.0040.0080.00040.00040.0060.006生物素mg/kg0.130.100.080.010.010.0110.120.15膽堿mg/kg1310105087510510511510501310葉酸mg/kg0.310.250.210.0350.0250.0280.400.43煙酸mg/kg12.510.08.31.01.01.115.016.0泛酸mg/kg