Recently I have been in delivery of Horse manure mixed with wood shavings/chippings , some of the blokes in this allotment seem not too enthusiastic about this manure , yet , so far , my Garlic is thriving ;)............... I just make up a pile of this stuff, mixed up with soil and water , and within days it heats up ........ seems ok to me !
The only objection is that shavings take a lot longer to compost than straw. = Tim