 
 <translate> The number of the increase in chicken after 9 years is 150 * 9 = 1350. So the total number of the chicken in Michael's farm will be 550 + 1350 = 1900.
The final answer: 1900. <hau> Adadin karuwar kaza bayan shekaru 9 shine 150 * 9 = 1350. Saboda haka yawan adadin kaji a gonar Michael zai zama 550 + 1350 = 1900. Amsar ita ce: A shekara ta 1900. 