diff --git a/ecs/jskult-webapp/src/repositories/bio_sales_lot_repository.py b/ecs/jskult-webapp/src/repositories/bio_sales_lot_repository.py
index 10d187c2..f3cbab0b 100644
--- a/ecs/jskult-webapp/src/repositories/bio_sales_lot_repository.py
+++ b/ecs/jskult-webapp/src/repositories/bio_sales_lot_repository.py
@@ -4,6 +4,7 @@ from src.logging.get_logger import get_logger
 from src.model.db.bio_sales_lot import BioSalesLotDBModel
 from src.model.request.bio import BioModel
 from src.repositories.base_repository import BaseRepository
+from src.system_var import environment
 from src.util.string_util import is_not_empty
 
 logger = get_logger('生物由来参照')
@@ -58,7 +59,8 @@ class BioSalesLotRepository(BaseRepository):
         rec_whs_sub_cd,
         rev_hsdnymd_srk,
         slip_mgt_num
-        ASC\
+        ASC
+    LIMIT {limit}\
     """
 
     def fetch_many(self, parameter: BioModel) -> list[BioSalesLotDBModel]:
@@ -66,7 +68,8 @@ class BioSalesLotRepository(BaseRepository):
             self._database.connect()
             logger.debug('DB参照実行')
             where_clause = self.__build_condition(parameter)
-            query = self.FETCH_SQL.format(where_clause=where_clause)
+            # システムとしての最大取得件数 +1 まで取る
+            query = self.FETCH_SQL.format(where_clause=where_clause, limit=environment.BIO_SEARCH_RESULT_MAX_COUNT + 1)
             logger.debug(f'SQL: {query}')
             result = self._database.execute_select(query, parameter.model_dump())
             logger.debug(f'count= {len(result)}')
@@ -83,7 +86,7 @@ class BioSalesLotRepository(BaseRepository):
             self._database.connect()
             logger.debug('DB参照実行')
             where_clause = self.__build_condition(parameter)
-            query = self.FETCH_SQL.format(where_clause=where_clause)
+            query = self.FETCH_SQL.format(where_clause=where_clause, limit=environment.BIO_SEARCH_RESULT_MAX_COUNT + 1)
             logger.debug(f'SQL: {query}')
             df = self._to_data_frame(query, parameter)
             logger.debug(f'count= {len(df.index)}')
diff --git a/ecs/jskult-webapp/src/system_var/environment.py b/ecs/jskult-webapp/src/system_var/environment.py
index bbb40223..6e7cf79d 100644
--- a/ecs/jskult-webapp/src/system_var/environment.py
+++ b/ecs/jskult-webapp/src/system_var/environment.py
@@ -19,7 +19,7 @@ DB_USERNAME = os.environ['DB_USERNAME']
 DB_PASSWORD = os.environ['DB_PASSWORD']
 DB_SCHEMA = os.environ['DB_SCHEMA']
 
-BIO_SEARCH_RESULT_MAX_COUNT = int(os.environ['BIO_SEARCH_RESULT_MAX_COUNT'])
+BIO_SEARCH_RESULT_MAX_COUNT = int(os.environ.get('BIO_SEARCH_RESULT_MAX_COUNT', 35000))
 ULTMARC_SEARCH_RESULT_MAX_COUNT = int(os.environ['ULTMARC_SEARCH_RESULT_MAX_COUNT'])
 SESSION_EXPIRE_MINUTE = int(os.environ['SESSION_EXPIRE_MINUTE'])