1. A method for increasing the growth of broiler chickens by improving one or more of the following: reducing the amount of time required to achieve a mass chicken in the implementation increasing average daily gain (ADG) indicator decrease feed efficiency product (FE) increasing the yield of the carcasses increase Chicken breast weight weight gain administration during the administration period broiler chickens zilpaterol from about 1 hr / million to about 13 parts / million, where zilpaterol broiler chickens administered daily during the administration period I zilpaterola.2. A method according to Claim. 1 wherein is zilpaterol zilpaterol gidrohlorid.3. A method according to Claim. 1, where zilpaterol administered for from about 7 days to about 21 dnya.4. A method according to claim. 3 where zilpaterol administered within about 7 dney.5. A method according to claim. 4, wherein the period of administration zilpaterol begins on day 35 zhizni.6. A method according to claim. 3, wherein the administration period is about 14 zilpaterol dney.7. A method according to claim. 6 where the period of administration zilpaterol begins with about 28 days lives8. A method according to claim. 3, wherein the administration period is about 21 zilpaterol dnya.9. A method according to claim. 8, where the period of administration zilpaterol begins at about day 21 zhizni.10. A method according to Claim. 1, wherein the zilpaterol concentration is about 1 hr / mln.11. A method according to Claim. 1, wherein the zilpaterol concentration is about 3 hours / mln.12. A method according to Claim. 1, wherein the zilpaterol concentration is about 5 hours / mln.13. A method according to Claim. 1, wherein the zilpaterol concentration is about 7 hours / mln.14. A method according to Claim. 1, wherein the zilpaterol concentration is about 9 h / mln.15. A method according to Claim. 1, wherein the zilpaterol concentration is about 11 h / mln.16. A method according to Claim. 1, wherein the concentration
