bitter tasting milk

Hello, we have two nigerian dwarfs that just kidded two weeks ago. I have begun to milk them once in the morning after they have been separated from their kids through the night. The milk has an almost sour taste to it. Could it be that the colostrum is not fully gone (although it is foaming when I milk)? Or could it be some other reason? I have a Nubian that I had milked earlier this year, we got her way after she had freshened. Her milk was amazingly sweet! I want that same sweet milk back and was expecting that from my dwarfs. Any suggestions?

 

I'm sorry, I'm new to goat lingo =) what is 'ff' ? There are no signs of mastitis and they are strictly on hay and a dairy pro 16 grain

 

nevermind, I figured out it was first time freshener. They both have been bred before, but it has been along time in between, we are talking years. Could that make a difference?

 

I get it strained and in the fridge pretty quick (or at least I think I am) no different than what I was doing with my nubian. I'll give it some more time. I read also it could be a vit B or cobalt deficiency, anyone have experience with that?

 

I've been putting minerals on their feed, just bought a new goat mineral block to put in also. My one doe did have a single, maybe it will just take a bit longer...feeling hopeful! thanks everyone!

 

and my single is only nursing off one side....that may be the culprit. I was originally putting their milk together. I kept it separate this morning, so I could see if indeed it was coming from the single kid's mother.