diff --git a/ecs/jskult-webapp/src/model/view/bio_view_model.py b/ecs/jskult-webapp/src/model/view/bio_view_model.py
index 080149de..5c0cd4d7 100644
--- a/ecs/jskult-webapp/src/model/view/bio_view_model.py
+++ b/ecs/jskult-webapp/src/model/view/bio_view_model.py
@@ -9,7 +9,7 @@ from src.model.db.pharmacy_product_master import PharmacyProductMasterModel
 from src.model.db.wholesaler_master import WholesalerMasterModel
 from src.model.request.bio import BioModel
 from src.model.view.bio_disp_model import BisDisplayModel
-from src.system_var import constants, environment
+from src.system_var import environment
 
 
 class BioViewModel(BaseModel):
@@ -51,16 +51,17 @@ class BioViewModel(BaseModel):
         )
 
     def bio_data_json_str(self):
+        """生物由来ロット分解データの検索結果を指定された件数ごとに分割しながら返す"""
         def date_handler(obj):
             """json.dumpsの日付項目のフォーマットハンドラ"""
             return obj.isoformat() if hasattr(obj, 'isoformat') else obj
 
         search_data_list = [model.dict() for model in self.bio_data]
         search_data_len = len(search_data_list)
-        # 1ページあたりの表示件数単位で、リストにPUSH
-        part_page_size = constants.BIO_SEARCH_LIST_PAGE_SIZE
-        for i in range(0, search_data_len, part_page_size):
-            yield json.dumps(search_data_list[i:i + part_page_size], ensure_ascii=False, default=date_handler)
+        # 呼び出し一回あたりの分割数
+        part_size = 500
+        for i in range(0, search_data_len, part_size):
+            yield json.dumps(search_data_list[i:i + part_size], ensure_ascii=False, default=date_handler)
 
     def make_whs_name(self):
         if not self.is_form_submitted():
diff --git a/ecs/jskult-webapp/src/system_var/constants.py b/ecs/jskult-webapp/src/system_var/constants.py
index 0f8f1f1f..8fddda80 100644
--- a/ecs/jskult-webapp/src/system_var/constants.py
+++ b/ecs/jskult-webapp/src/system_var/constants.py
@@ -7,7 +7,6 @@ DUMP_STATUS_UNPROCESSED = '0'
 
 # 生物由来照会
 
-BIO_SEARCH_LIST_PAGE_SIZE = 100
 BIO_TEMPORARY_FILE_DIR_PATH = path.join(path.curdir, 'src', 'data')
 BIO_EXCEL_TEMPLATE_FILE_PATH = path.join(BIO_TEMPORARY_FILE_DIR_PATH, 'BioData_template.xlsx')