Estimation of Arginine Requirements for Male Broilers Grown at High Altitude from One to Twenty-one Days of Age | ||
| Journal of Agricultural Science and Technology | ||
| Article 5, Volume 15, Issue 5, 2013, Pages 911-917 PDF (110.34 K) | ||
| Authors | ||
| F. Khajali* 1; H. Basoo1; M. Faraji2 | ||
| 1Department of Animal Science, Faculty of Agriculture, Shahrekord University, Shahrekord, Islamic Republic of Iran. | ||
| 2Jihad-e-Agriculture Organization, Shahrekord, Islamic Republic of Iran. | ||
| Abstract | ||
| Arginine (Arg) requirements of male broilers (Ross 308) reared at high altitude (2100 m above sea level) during the 1-to 3-week period was estimated in a graded supplementation method, in which six diets (230 g kg-1 CP and 3200 Kcal ME kg-1) with Arg increments of 1.25 g kg-1 were applied to four pens of fifteen birds each. Dietary Arg content of the experimental groups ranged from 10 g kg-1 (80% of the NRC recommendation) to 16.25 g kg-1 (130% of the NRC recommendation). Body weight gain, feed: gain ratio, and plasma nitric oxide (NO) concentration were determined as response criteria. Arginine requirements for maximal body weight gain and optimal feed: gain during the 21 days under study were estimated to be 15.3, and 15.1 g kg-1 of diet, respectively. The estimated Arg requirement based on the response in plasma NO was 15.6 g kg-1. In conclusion, broilers receiving dietary Arg of 15 g kg-1 had the best performance. Data obtained for the individual factors are by far the highest values reported for Arg requirements. | ||
| Keywords | ||
| Amino acids; Chicken; Growth stage; Needs | ||
| References | ||
|
| ||
|
Statistics Article View: 103 PDF Download: 59 |
||
| Number of Journals | 45 |
| Number of Issues | 2,171 |
| Number of Articles | 24,674 |
| Article View | 24,448,018 |
| PDF Download | 17,555,123 |