Link to the Animals list in the farm asset breadcrumb.

farm_livestock.module

@@ -38,6 +38,19 @@ function farm_livestock_farm_admin_actions() {
   return $actions;
 }
 
+/**
+ * Implements hook_farm_asset_breadcrumb().
+ */
+function farm_livestock_farm_asset_breadcrumb($farm_asset) {
+
+  // If the asset is an animal, add a link to the animals list.
+  $breadcrumb = array();
+  if ($farm_asset->type == 'animal') {
+    $breadcrumb[] = l(t('Animals'), 'farm/animals');
+  }
+  return $breadcrumb;
+}
+
 /**
  * Implements hook_farm_asset_view_views().
  */