There are two types of feeds which are generally used in Web 2.0, these are RSS and Atom. You can add an option of your own custom feed to Blogger Blog which will appear as shown below-
For example I’ve added following code above <b:skin>
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
<link href=’Your Feed Link Here‘ rel=’alternate’ title=’Alternate Feed Title Here‘ type=’Feed Type Here‘/>
<link href=’http://gohi-tech.blogspot.com/feeds/posts/default/-/Blogging%20tricks‘ rel=’alternate’ title=’Blogging Tricks‘ type=’application/atom+xml‘/>
By saving the above template I got something like shown below -
You can also add label specific feed, which you can show to your homepage.
To write feed type as an Atom Feed we use “application/atom+xml” , and if the feed is RSS we use “application/rss+xml“, insted.
Links:- Add Label Specific Feed



