[Projoy] Actually only one type of animal but more than 1 of them according to answer to Irouleguy.

[Raak] a pub name - NO
[Inks] farm animal - YES
[PJ] equine - YES (some of the audience emerge from their stupor)
[Inks/Chalky] - see above
The summary is reasonable except that,as Dandalf says - you have been told that there is only one type of mammal, but more than one of them.
I've never taken 'domesticated' to mean the same as 'domestic'.

Why didn't the audience wake up at "King's horses" earlier on?

[Dandalf] - Good question - in retrospect, I think they should have.
[Chalky] horse racing? - NO
[PJ] If wishes were horses,... - NO
[Dandalf] Four hoarse men - NO
[Raak] herd of wild horses? - NO

Shortly going away for the long weekend - and yet I feel this one could fall quickly if someone makes the right lateral jump. I'm surprised how hard it is proving.
In retrospect the 'kings horses' should have got some applause.

P.S. Also going away for long weekend

Charge of the light brigade is a very good guess, I think. But I am not sure why the audience would have 'nodded sagely' at my 'particular human?' question, and I would have thought that it was gender-specific in principle. Also, if it is right, then 'King's horses' definitely should have won applause!

In case 'Charge of the Light Brigade' is wrong.

Dandalf was right 'Charge of the Light Brigade' it is.
As I later admitted - King's Horses should have won applause. I can only say that I didn't have a lot of time when I posted that and I also didn't anticipate that it would prove as difficult as it did. Particular human - NO, but 600 particular humans. Gender-specific not now, but yes, then. All arguable.
Anyway, sorry to have kept you waiting, but I've had a very nice weekend away in Mid-Wales and my laptop was not going to come with me.
Over to Dandalf

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Well back from my long weekend to find I'd guessed right. Actually I was hesitant about C of the L.B. because of the gender thing - but then thought that the equines probably included both stallions and mares! : ) Whatever - here goes with ABSTRACT with no connections whatsoever. (Oh dear, what have I let myself in for?!?)