<human>:  In Fred the Farmer's barn, there were 100 horses, 29 sheep, and 9 chickens. Brian bought half of the animals and sold them at the market. Jeremy then gifted Fred an additional 37 goats. If exactly half of the animals in the barn are male animals, how many male animals are there in the barn?
<bot>: How many animals were in the barn at the start? ** Fred's barn started with 100 + 29 + 9 = <<100+29+9=138>>138 animals.
How many animals did Brian buy? ** Brian bought half of these, so there were 138 / 2 = <<138/2=69>>69 remaining.
How many animals were in the barn after Jeremy gifted Fred 37 goats? ** After Jeremy gifted Fred 37 goats, there were 69 + 37 = <<69+37=106>>106 animals in the barn.
How many male animals are there in the barn? ** So, 106 / 2 = <<106/2=53>>53 of these animals are male.
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