Table 5.
Item | Live BW, kg | Dressing yield | Breast muscles, total | Pectoralis major | Pectoralis minor | Thigh | Drumstick | Abdominal fat | Heart | Liver | Gizzard |
---|---|---|---|---|---|---|---|---|---|---|---|
Treatment1 | |||||||||||
Arg90Met30 | 10.32 | 82.0 | 23.1 | 18.4 | 4.67 | 10.8 | 8.11 | 1.68 | 0.31 | 1.72 | 0.67 |
Arg90Met45 | 10.80 | 82.3 | 22.8 | 18.1 | 4.63 | 10.6 | 8.01 | 1.83 | 0.30 | 1.75 | 0.62 |
Arg100Met30 | 10.53 | 82.8 | 22.7 | 18.2 | 4.50 | 11.0 | 8.15 | 1.90 | 0.32 | 1.74 | 0.66 |
Arg100Met45 | 10.54 | 82.8 | 23.5 | 19.0 | 4.57 | 10.6 | 7.96 | 1.78 | 0.30 | 1.59 | 0.64 |
Arg110Met30 | 10.25 | 83.1 | 24.0 | 19.3 | 4.66 | 10.6 | 8.03 | 1.66 | 0.31 | 1.53 | 0.67 |
Arg110Met45 | 10.76 | 83.2 | 24.0 | 19.4 | 4.62 | 10.3 | 7.96 | 1.91 | 0.30 | 1.63 | 0.62 |
SEM | 0.063 | 0.110 | 0.132 | 0.122 | 0.031 | 0.084 | 0.068 | 0.250 | 0.004 | 0.030 | 0.011 |
Arg level, % | |||||||||||
90 | 10.56 | 82.2b | 22.9b | 18.26b | 4.65 | 10.7 | 8.06 | 1.75 | 0.31 | 1.74 | 0.65 |
100 | 10.54 | 82.8a | 23.1b | 18.60b | 4.54 | 10.8 | 8.06 | 1.84 | 0.31 | 1.67 | 0.65 |
110 | 10.51 | 83.1a | 24.0a | 19.34a | 4.64 | 10.4 | 7.99 | 1.78 | 0.30 | 1.58 | 0.65 |
Met level, % | |||||||||||
30 | 10.37 | 82.6 | 23.3 | 18.66 | 4.61 | 10.8 | 8.10 | 1.75 | 0.31 | 1.67 | 0.67 |
45 | 10.70 | 82.8 | 23.4 | 18.82 | 4.60 | 10.5 | 7.98 | 1.84 | 0.30 | 1.66 | 0.63 |
P value | |||||||||||
Arg | 0.932 | 0.001 | 0.001 | 0.003 | 0.276 | 0.163 | 0.914 | 0.599 | 0.898 | 0.097 | 0.992 |
Met | 0.008 | 0.512 | 0.513 | 0.452 | 0.936 | 0.077 | 0.401 | 0.221 | 0.274 | 0.851 | 0.115 |
Arg × Met | 0.159 | 0.759 | 0.135 | 0.133 | 0.746 | 0.801 | 0.933 | 0.104 | 0.876 | 0.197 | 0.838 |
Values in same column with no common superscript denote a significant difference (P ≤ 0.05).
Abbreviations: Arg, arginine; BW, body weight; Lys, lysine; Met, methionine; SEM, standard error of mean.
Treatment: Arg90Met30 received 90% Arg level and 30% Met level relative to the content of dietary Lys; Arg90Met45 received 90% Arg level and 45% Met level relative to the content of dietary Lys; Arg100Met30 received 100% Arg level and 30% Met level relative to the content of dietary Lys; Arg100Met45 received 100% Arg level and 45% Met level relative to the content of dietary Lys; Arg110Met30 received 110% Arg level and 30% Met level relative to the content of dietary Lys; Arg110Met45 received 110% Arg level and 45% Met level relative to the content of dietary Lys.