Should I throw this hay out?

[gelliebean]

I ordered hay to be delivered to my house. It was mentioned to me that it was an older harvest and therefore a discounted price, I always received very nice hay from these people so I didn't think too much of it.

The hay is very yellow and doesn't have a sweet smell. It doesn't smell like much, but has an iffy odour, I can't really explain it. Just smells a bit stale maybe? It seems like my rabbit is eating it but I've been considering just dumping it and buying another more fresh bale.

 

[Preitler]

"Older harvest" means not from last year? Unfortunatly, hay detoriats and quality can leave much to be desired after a year. I use leftover hay as bedding for litterboxes, and such stuff. Doesn't matter if they take a nibble (actually they sometimes eat leaves and stuff that looks half rotten to me), but I would not use it as staple food for longer periods of time, and discard it if it is very dusty.
Biggest issue with hay is mold if it wasn't stored properly, but that can happen to fresh hay in a matter of weeks too.

 

[gelliebean]

"Older harvest" means not from last year? Unfortunatly, hay detoriats and quality can leave much to be desired after a year. I use leftover hay as bedding for litterboxes, and such stuff. Doesn't matter if they take a nibble (actually they sometimes eat leaves and stuff that looks half rotten to me), but I would not use it as staple food for longer periods of time, and discard it if it is very dusty.
Biggest issue with hay is mold if it wasn't stored properly, but that can happen to fresh hay in a matter of weeks too.

I think they did mean it was from last year. How can I tell if it's mouldy? I feel like it has a bit of an odour.