baoshi-was/database/seeds/OwnerSundryFeeDetailsTableSeeder.php

<?php

use Illuminate\Database\Seeder;
use App\OwnerSundryFeeDetail;

class OwnerSundryFeeDetailsTableSeeder extends Seeder
{
    public function run()
    {
        $owner_sundry_fee_details = factory(OwnerSundryFeeDetail::class)->times(50)->make()->each(function ($owner_sundry_fee_detail, $index) {
            if ($index == 0) {
                // $owner_sundry_fee_detail->field = 'value';
            }
        });

        OwnerSundryFeeDetail::insert($owner_sundry_fee_details->toArray());
    }

}