According to the information provided by Today's Times Express, the breeding cost and income of 500 rabbits are as follows:

1, rabbit cost: the cost of each rabbit is about 20 yuan, so the cost of 500 rabbits is about 10000 yuan.

2. Feed cost: According to the market price, the initial input of feed is about 10000 yuan.

3. Rabbit cage cost: The cost of rabbit cages is 20 yuan, which is bred in groups, 50 rabbits are a group, and 500 rabbits need 10 rabbit cages, so the cost of rabbit cages is 200 yuan.

4. Vaccine cost: The vaccine cost for each rabbit is 1 yuan, and 500 rabbits are 500 yuan.

5. Rabbit meat income: According to the weight of each rabbit at the time of slaughter, which is about 4 kg, and the 25 yuan of one kg of rabbit meat, the breeding income of 500 rabbits is 50,000 yuan.

6. Rabbit skin income: The market price of each rabbit fur is about 50 yuan. After deducting some fur damaged due to accidents or growth reasons, the income is about 20,000 yuan.

7. Breeding profit: breeding profit = breeding income-breeding cost. Substituting the above data into this formula, we can get (50,000 yuan+20,000 yuan) -( 10000 yuan+10000 yuan +200 yuan +500 yuan) = 70,000 yuan-20,700 yuan =