Asp.Net MVC Inner Join statement return pre-defined values if the search does not produce results

I have the following statement in the controlller

public JsonResult GetLote(DateTime dataAbate, int numeroSequencia)
{
    db.Configuration.ProxyCreationEnabled = false;

    var query = from a in db.Lotes
    join b in db.LoteGeneros on a.LoteId equals b.LoteId
    join c in db.Generos on b.GeneroId equals c.GeneroId
    where a.DataAbate == dataAbate && (c.SequenciaInicial <= numeroSequencia && c.SequenciaFinal >= numeroSequencia)
    select new { NumeroDoLote = a.NumeroLote};

    if(query.Count() <= 0)
    {
        //CASO query venha com Count 0
        //Como fazer para NumeroDoLote receber 0 (zero)
    }

    return Json(query);
}

How do I get the value inside select new { NumeroDoLote receba 0 } if the search returns nothing?