diff --git a/frontend/src/app/cow/[cowNo]/page.tsx b/frontend/src/app/cow/[cowNo]/page.tsx
index 1b28f61..6ce7552 100644
--- a/frontend/src/app/cow/[cowNo]/page.tsx
+++ b/frontend/src/app/cow/[cowNo]/page.tsx
@@ -553,8 +553,8 @@ export default function CowOverviewPage() {
                   >
                     <BarChart3 className="hidden sm:block h-6 w-6 shrink-0" />
                     <span className="font-bold text-sm sm:text-xl">유전체</span>
-                    <span className={`text-xs sm:text-sm px-1.5 sm:px-2.5 py-0.5 sm:py-1 rounded font-semibold shrink-0 ${hasGenomeData ? 'bg-green-500 text-white' : 'bg-slate-300 text-slate-600'}`}>
-                      {hasGenomeData ? '완료' : '미검사'}
+                    <span className={`text-xs sm:text-sm px-1.5 sm:px-2.5 py-0.5 sm:py-1 rounded font-semibold shrink-0 ${hasGenomeData && isValidGenomeAnalysis(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId) ? 'bg-green-500 text-white' : 'bg-slate-300 text-slate-600'}`}>
+                      {hasGenomeData && isValidGenomeAnalysis(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId) ? '완료' : '미검사'}
                     </span>
                   </TabsTrigger>
                   <TabsTrigger
@@ -563,6 +563,9 @@ export default function CowOverviewPage() {
                   >
                     <Dna className="hidden sm:block h-6 w-6 shrink-0" />
                     <span className="font-bold text-sm sm:text-xl">유전자</span>
+                    <span className={`text-xs sm:text-sm px-1.5 sm:px-2.5 py-0.5 sm:py-1 rounded font-semibold shrink-0 ${hasGeneData && isValidGenomeAnalysis(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId) ? 'bg-green-500 text-white' : 'bg-slate-300 text-slate-600'}`}>
+                      {hasGeneData && isValidGenomeAnalysis(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId) ? '완료' : '미검사'}
+                    </span>
                   </TabsTrigger>
                   <TabsTrigger
                     value="reproduction"
@@ -891,26 +894,26 @@ export default function CowOverviewPage() {
 
                           <Card className="bg-white border border-border rounded-xl overflow-hidden">
                             <CardContent className="p-0">
-                              <div className="grid grid-cols-3 divide-x divide-border">
-                                <div className="p-4">
-                                  <div className="text-xs font-medium text-muted-foreground mb-1">접수일</div>
-                                  <div className="text-sm font-semibold text-foreground truncate">
+                              <div className="grid grid-cols-1 sm:grid-cols-3 divide-y sm:divide-y-0 sm:divide-x divide-border">
+                                <div className="p-3 sm:p-4 flex justify-between sm:block">
+                                  <div className="text-xs font-medium text-muted-foreground sm:mb-1">접수일</div>
+                                  <div className="text-sm font-semibold text-foreground">
                                     {genomeData[0]?.request?.requestDt
                                       ? new Date(genomeData[0].request.requestDt).toLocaleDateString('ko-KR')
                                       : '-'}
                                   </div>
                                 </div>
-                                <div className="p-4">
-                                  <div className="text-xs font-medium text-muted-foreground mb-1">분석 완료일</div>
-                                  <div className="text-sm font-semibold text-foreground truncate">
+                                <div className="p-3 sm:p-4 flex justify-between sm:block">
+                                  <div className="text-xs font-medium text-muted-foreground sm:mb-1">분석 완료일</div>
+                                  <div className="text-sm font-semibold text-foreground">
                                     {genomeData[0]?.request?.chipReportDt
                                       ? new Date(genomeData[0].request.chipReportDt).toLocaleDateString('ko-KR')
                                       : '-'}
                                   </div>
                                 </div>
-                                <div className="p-4">
-                                  <div className="text-xs font-medium text-muted-foreground mb-1">칩 종류</div>
-                                  <div className="text-sm font-semibold text-foreground truncate">
+                                <div className="p-3 sm:p-4 flex justify-between sm:block">
+                                  <div className="text-xs font-medium text-muted-foreground sm:mb-1">칩 종류</div>
+                                  <div className="text-sm font-semibold text-foreground">
                                     {genomeData[0]?.request?.chipType || '-'}
                                   </div>
                                 </div>
@@ -1185,6 +1188,7 @@ export default function CowOverviewPage() {
                       </Card>
 
                       {/* 분석불가 메시지 */}
+                      <h3 className="text-lg lg:text-xl font-bold text-foreground">유전체 분석 결과</h3>
                       <Card className="bg-slate-100 border border-slate-300 rounded-2xl">
                         <CardContent className="p-8 text-center">
                           <BarChart3 className="h-12 w-12 text-slate-400 mx-auto mb-4" />
@@ -1457,6 +1461,9 @@ export default function CowOverviewPage() {
                       {/* 유전자 검색 및 필터 섹션 */}
                       <h3 className="text-lg lg:text-xl font-bold text-foreground">유전자 분석 결과</h3>
 
+                      {/* 친자확인 결과에 따른 분기 */}
+                      {isValidGenomeAnalysis(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId) ? (
+                        <>
                       <div className="flex flex-col gap-3 sm:gap-3 p-3.5 max-sm:p-3 sm:px-4 sm:py-3 rounded-xl bg-slate-50/50 border border-slate-200/50">
                         {/* 검색창 */}
                         <div className="relative w-full">
@@ -1828,6 +1835,20 @@ export default function CowOverviewPage() {
                           </>
                         )
                       })()}
+                        </>
+                      ) : (
+                        <Card className="bg-slate-100 border border-slate-300 rounded-2xl">
+                          <CardContent className="p-8 text-center">
+                            <Dna className="h-12 w-12 text-slate-400 mx-auto mb-4" />
+                            <h3 className="text-lg font-semibold text-slate-700 mb-2">
+                              {getInvalidReason(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId) || '유전자 분석 불가'}
+                            </h3>
+                            <p className="text-sm text-slate-500">
+                              {getInvalidMessage(genomeRequest?.chipSireName, genomeRequest?.chipDamName, cow?.cowId).replace('유전체', '유전자')}
+                            </p>
+                          </CardContent>
+                        </Card>
+                      )}
                     </>
                   ) : (
                     <Card className="bg-slate-50 border border-border rounded-2xl">
diff --git a/frontend/src/app/cow/page.tsx b/frontend/src/app/cow/page.tsx
index 0ac1210..ae3afbe 100644
--- a/frontend/src/app/cow/page.tsx
+++ b/frontend/src/app/cow/page.tsx
@@ -765,7 +765,7 @@ function MyCowContent() {
                           value={sortOrder}
                           onValueChange={(value) => setSortOrder(value as 'asc' | 'desc')}
                         >
-                          <SelectTrigger className="w-full sm:w-[100px] h-10 sm:h-9 text-sm border-slate-200 bg-white">
+                          <SelectTrigger className="w-full sm:w-[120px] h-10 sm:h-9 text-sm border-slate-200 bg-white">
                             <SelectValue />
                           </SelectTrigger>
                           <SelectContent>
diff --git a/frontend/src/components/common/global-filter-dialog.tsx b/frontend/src/components/common/global-filter-dialog.tsx
index d44ea08..d5a7c81 100644
--- a/frontend/src/components/common/global-filter-dialog.tsx
+++ b/frontend/src/components/common/global-filter-dialog.tsx
@@ -141,7 +141,7 @@ function SortableTraitItem({
           size="sm"
           className="h-6 w-6 p-0"
           onClick={() => onWeightChange(-1)}
-          disabled={weight <= 0}
+          disabled={weight <= 1}
         >
           -
         </Button>
@@ -396,11 +396,11 @@ export function GlobalFilterDialog({ externalOpen, onExternalOpenChange, geneCou
     })
   }
 
-  // 가중치 변경
+  // 가중치 변경 (1~10 범위)
   const updateTraitWeight = (traitName: string, delta: number) => {
     setLocalFilters(prev => {
-      const current = prev.traitWeights[traitName as TraitName] || 0
-      const newValue = Math.min(10, Math.max(0, current + delta))
+      const current = prev.traitWeights[traitName as TraitName] || 1
+      const newValue = Math.min(10, Math.max(1, current + delta))
       return {
         ...prev,
         traitWeights: { ...prev.traitWeights, [traitName]: newValue }
@@ -991,7 +991,7 @@ export function GlobalFilterDialog({ externalOpen, onExternalOpenChange, geneCou
                                               e.stopPropagation()
                                               updateTraitWeight(trait, -1)
                                             }}
-                                            disabled={(localFilters.traitWeights[trait as TraitName] || 0) <= 0}
+                                            disabled={(localFilters.traitWeights[trait as TraitName] || 1) <= 1}
                                           >
                                             -
                                           </Button>
diff --git a/frontend/src/types/filter.types.ts b/frontend/src/types/filter.types.ts
index a57f10e..5672903 100644
--- a/frontend/src/types/filter.types.ts
+++ b/frontend/src/types/filter.types.ts
@@ -131,16 +131,16 @@ export const DEFAULT_FILTER_SETTINGS: GlobalFilterSettings = {
   selectedTraits: ["도체중", "등심단면적", "등지방두께", "근내지방도", "체장", "체고", "흉위"],
   pinnedTraits: [],
   traitWeights: {
-    // 성장형질 (점수: 0 ~ 10)
+    // 성장형질 (점수: 1 ~ 10, 미선택 시 0)
     "12개월령체중": 0,
 
-    // 경제형질 (점수: 0 ~ 10)
+    // 경제형질 (점수: 1 ~ 10, 미선택 시 0)
     도체중: 1,
     등심단면적: 1,
     등지방두께: 1,
     근내지방도: 1,
 
-    // 체형형질 (점수: 0 ~ 10) - DB 형질명과 일치
+    // 체형형질 (점수: 1 ~ 10, 미선택 시 0) - DB 형질명과 일치
     체고: 1,
     십자: 0,
     체장: 1,
@@ -152,7 +152,7 @@ export const DEFAULT_FILTER_SETTINGS: GlobalFilterSettings = {
     곤폭: 0,
     흉위: 1,
 
-    // 부위별무게 (점수: 0 ~ 10) - DB 형질명과 일치
+    // 부위별무게 (점수: 1 ~ 10, 미선택 시 0) - DB 형질명과 일치
     안심weight: 0,
     등심weight: 0,
     채끝weight: 0,
@@ -164,7 +164,7 @@ export const DEFAULT_FILTER_SETTINGS: GlobalFilterSettings = {
     양지weight: 0,
     갈비weight: 0,
 
-    // 부위별비율 (점수: 0 ~ 10) - DB 형질명과 일치
+    // 부위별비율 (점수: 1 ~ 10, 미선택 시 0) - DB 형질명과 일치
     안심rate: 0,
     등심rate: 0,
     채끝rate: 0,