Sometimes dogs limp or appear to be limping on the paws opposite to the one that actually hurts. If you still can't find anything, you should probably consult your vet. I doubt it's related to getting fixed, but crazier things have happened.
Your legal entities are required to pay payroll tax and social insurance such as social security on your payroll. In Oracle Fusion Applications, you can register payroll statutory units to pay and report on payroll tax and social insurance on behalf of many of your legal entities.
Labour law. Labour law (also known as labor law or employment law) mediates the relationship between workers, employing entities, trade unions and the government. Collective labour law relates to the tripartite relationship between employee, employer and union. Individual labour law concerns employees' rights at work and through the contract for work.