Method of enhancing the performance of broiler chickens
A method of enhancing the performance of chicken comprising administering zilpaterol to the chicken wherein the concentration of zilpaterol is from about 1 ppm to about 13 ppm and is administered every day for a period of about 7 to about 21 days.
1. A method for enhancing the performance of broiler chicken by improving one or more of the following parameters:
increasing the average daily gain (ADG);
decreasing the feed efficiency value (FE);
increasing the carcass yield;
by administering during an administration period from about 1 ppm to about 13 ppm zilpaterol in the feed to the broiler chicken wherein zilpaterol is administered every day during the zilpaterol administration period, and wherein the zilpaterol administration period either begins on 35 days of age and is for about 7 days or begins on 28 days of age and is for about 14 days.
2. The method of claim 1 , wherein the zilpaterol is zilpaterol hydrochloride.
3. The method of claim 2 , wherein the zilpaterol administration period begins on 35 days of age and is for about 7 days.
4. The method of claim 2 , wherein the zilpaterol administration period begins on 28 days of age and is about 14 days.
5. The method of claim 1 , wherein the concentration of zilpaterol is about 1 ppm.
6. The method of claim 1 , wherein the concentration of zilpaterol is about 3 ppm.
7. The method of claim 1 , wherein the concentration of zilpaterol is about 5 ppm.
8. The method of claim 1 , wherein the concentration of zilpaterol is about 7 ppm.
9. The method of claim 1 , wherein the concentration of zilpaterol is about 9 ppm.
10. The method of claim 1 , wherein the concentration of zilpaterol is about 11 ppm.
11. The method of claim 1 , wherein the concentration of zilpaterol is about 13 ppm.