Defect Id, summary,severity, 
priority,description,status,detected on date,detected by, 
assigned to,attachments etc

In the defect report we have the following fields
defect id
defect description
build version id 
test case id
whether it is reproducable or not
if yes, attach the procedure
if no,attach snap shots with strong reasons.
status
severity 
priority
tested by
tested on

In Defect Report many field are there:
(1)Defect id
(2)Date(in which date tester found)
(3)Steps to reproduce
(4)Priority
(5)Severity
(6)status
(7)assigned to
(8)Project name
(9)module name
(10)defect description

1).Deffect ID
2).Summary
3).screenshort
4).Description
5).Version
6).Assigned to
7). Detected by
8).Date
9).Seviority
10).priority
11).Steps to reproduce
12).release