Responses of Broilers to Amino Acid Intake - Nutritional Modelling for Pigs and Poultry - page 242

Table 17.5. Body protein deposition (BPd; g/bird/day) and body lipid content (BLc; g/kg) of broiler males and females as a function of threonine intake (Thri; i ; mg/bird/day).

Starter Grower Finisher

Females Males Females Males Females Males

Levels Thr i BPd BLc Thr i BPd BLc Thr i BPd BLc Thr i BPd BLc Thr i BPd BLc Thr i BPd BLc

1 16 0.40 154 18 0.40 181 86 1.31 282 103 1.51 248 163 5.48 344 189 4.95 330

2 117 2.83 135 113 2.46 175 377 6.78 183 444 7.13 214 554 12.3 294 666 14.0 278

3 160 3.42 138 159 3.21 149 479 8.60 172 522 8.85 180 689 14.8 252 848 15.5 251

4 185 3.41 114 203 3.87 132 567 8.74 161 626 9.61 140 833 15.5 237 964 17.3 185

5 221 3.72 111 220 4.06 120 629 9.22 145 706 10.3 131 923 16.1 192 1112 18.5 183

6 252 3.40 90.5 265 3.88 95.7 713 9.62 128 803 10.1 101 1048 15.0 229 1261 19.7 221

7 266 3.47 83.2 291 4.08 78.3 776 9.51 111 850 9.87 111 1128 15.0 192 1359 18.3 157

Sex × Thr <0.01 <0.01 <0.01 <0.01 0.26 <0.01 0.26 <0.01 <0.05 <0.01 <0.05 <0.01

CV (%) a 15.2 9.06 9.79 7.86 5.90 4.58 4.21 9.34 7.01 10.6 9.67 8.14

P <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

a CV = coefficient of variation.