public function getFiltraranimal(Request $request)
 {
     if (!$request->ajax()) {
         abort(403);
     }
     $datos = array();
     $inputs = $request->all();
     if (empty($inputs['search'])) {
         $animales = \App\Animal::select(\DB::raw('SQL_CALC_FOUND_ROWS *'), 'id')->where('id', '>', 0)->take($inputs['limit'])->skip($inputs['offset'])->orderBy('created_at', 'ASC')->get();
     } else {
         $animales = \App\Animal::select(\DB::raw('SQL_CALC_FOUND_ROWS *'), 'id')->where('animal', 'LIKE', '%' . $inputs["search"] . '%')->take($inputs['limit'])->skip($inputs['offset'])->orderBy('created_at', 'ASC')->get();
     }
     $cantidad = \DB::select(\DB::raw("SELECT FOUND_ROWS() AS total;"));
     $cantidad = $cantidad[0]->total;
     $n = 1;
     foreach ($animales as $animal) {
         $url = '<a href="' . route('animales.edit', $animal->id) . '" class="btn btn-xs btn-success"><i class="fa fa-btn fa-edit"></i>Editar</a>';
         $datos[] = ['num' => $n++, 'animal' => $animal->animal, 'act' => $url];
     }
     return \Response::json(['total' => $cantidad, 'rows' => $datos]);
 }