Add spaces: ...doneinthespiritofVolterra.

Answer: ... done in the spirit of Volterra .

Add spaces: Ashandresiduescontainingmainlynickel

Answer: Ash and residues containing mainly nickel

Add spaces: ObesityisanotherfactorforDJD,asitincreasesstressonjoints.Inaddition,dogswithdisorderssuchasdiabetes,prolongedsteroidtreatment,andhyperlaxity(anexcessiveloosenessofthejoints)mayalsobeathigherriskforDJD.

Answer:
Obesity is another factor for DJD, as it increases stress on joints. In addition, dogs with disorders such as diabetes, prolonged steroid treatment, and hyperlaxity (an excessive looseness of the joints) may also be at higher risk for DJD.