Study on feedlot feeding of white Lamphun bulls with 2 levels of concentrate

To study on feedlot feeding of White Lamphun bulls by using 2 groups of animal, ages between 1 and 1 1/2 years old. Both groups, with 7 animals in each group consumed Ruzi grass and rice straw and supplemented with concentrate at the rates of 1.0 and 1.5 percent of body weight by group 1 and 2, respectively. The experiment was carried out until the body weight of each animal was about 300 kilogram. The average daily gain of both groups was 492.7 gram (p0.05). The average time spent in feedlot was 307 days for both groups (p0.05). The total feed consumption was 5.61 kilogram per day by group 1 and was 6.15 kilogram per day by group 2 (p0.05). The average feed conversion ratio for both groups was 12.16 kg. (P0.05). The total costs (the price of the animal plus the feed cost) were 6,605.12 and 7,800.97 Baht in group 1 and 2 respectively (P0.01). So the benefit from this feedlot feeding experiment were 1,537.31 Baht in group 1 and only 409.28 Baht in group 2 (P0.01).