diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70c1510..daaca58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -49,6 +49,7 @@ Ajouter dans le fichier .env du frontend
 * fix layout admin
 * Creation page admin listing bovins
 * Creation page admin ajout/modification bovins
+* [#331] Mettre à jour l'entité Shipment et bovin_shipment
 ### Changed
 
 ### Fixed
diff --git a/frontend/components/shipment/shipment-form.vue b/frontend/components/shipment/shipment-form.vue
index 0700b9d..a19076e 100644
--- a/frontend/components/shipment/shipment-form.vue
+++ b/frontend/components/shipment/shipment-form.vue
@@ -152,15 +152,9 @@ import type {ShipmentFormData} from '~/services/dto/shipment-data'
 import {SUPPLIER_CODE} from "~/utils/constants"
 import {useAuthStore} from '~/stores/auth'
 import {useShipmentStore} from '~/stores/shipment'
-import { computed, reactive, ref, watch, onMounted } from 'vue'
+import {computed, reactive, ref, watch, onMounted} from 'vue'
 import type {ShipmentTypeData} from "~/services/dto/shipment-type-data";
 import {getShipmentTypeList} from "~/services/shipment-type";
-import {
-    createShipmentBovine,
-    deleteShipmentBovine,
-    getBovinShipmentList,
-    updateShipmentBovine
-} from "~/services/bovin-shipment";
 
 const users = ref<UserData[]>([])
 const customers = ref<CustomerData[]>([])
@@ -332,23 +326,15 @@ watch(
         form.carrierId = shipment?.carrier?.id ? String(shipment.carrier.id) : ''
         form.driverId = shipment?.driver?.id ? String(shipment.driver.id) : ''
         form.vehicleId = shipment?.vehicle?.id ? String(shipment.vehicle.id) : ''
-        if (!shipment || !shipment.bovinShipments) {
-            selectedShipmentTypeId.value = ''
-            shipmentQuantity.value = 0
-        } else {
-            const selectedEntry = shipment.bovinShipments.find((entry) => {
-                const typeId = entry.shipmentType?.id
-                return Boolean(typeId) && Number(entry.nbBovinSend ?? 0) > 0
-            }) ?? shipment.bovinShipments.find((entry) => Boolean(entry.shipmentType?.id))
 
-            if (!selectedEntry?.shipmentType?.id) {
-                selectedShipmentTypeId.value = ''
-                shipmentQuantity.value = 0
-            } else {
-                selectedShipmentTypeId.value = String(selectedEntry.shipmentType.id)
-                shipmentQuantity.value = selectedEntry.nbBovinSend ?? 0
-            }
-        }
+
+        selectedShipmentTypeId.value = shipment?.shipmentType?.id
+            ? String(shipment.shipmentType.id)
+            : ''
+
+        shipmentQuantity.value = shipment?.nbBovinSend ?? 0
+
+
         isHydrating.value = false
     },
     {immediate: true}
@@ -474,68 +460,7 @@ watch(
         }
     }
 )
-const buildDesiredBovinShipments = () => {
-    const typeId = Number(selectedShipmentTypeId.value)
-    if (!Number.isFinite(typeId)) {
-        return []
-    }
-    const type = bovineShipment.value.find((entry) => entry.id === typeId)
-    if (!type) {
-        return []
-    }
-    const raw = shipmentQuantity.value
-    const quantity = raw === null || raw === undefined ? 0 : Number(raw)
-    const normalizedQuantity = Number.isFinite(quantity) ? Math.max(0, Math.trunc(quantity)) : 0
-    if (normalizedQuantity <= 0) {
-        return []
-    }
 
-    return [{type, quantity: normalizedQuantity}]
-}
-const syncBovinShipments = async (
-    shipmentId: number,
-    existing: Array<{ id?: number; nbBovinSend: number | null; shipmentType?: unknown }> = []
-) => {
-    const shipmentIri = `/api/shipments/${shipmentId}`
-    const desired = buildDesiredBovinShipments()
-    const desiredByTypeId = new Map<number, number>()
-    for (const entry of desired) {
-        desiredByTypeId.set(entry.type.id, entry.quantity)
-    }
-    for (const entry of existing) {
-        if (!entry.id) {
-            continue
-        }
-        const rawType = entry.shipmentType
-        let typeId: number | null = null
-        if (rawType && typeof rawType === 'object' && 'id' in rawType) {
-            typeId = Number((rawType as { id: number }).id)
-        } else if (typeof rawType === 'string') {
-            const match = rawType.match(/\/shipment_types\/(\\d+)$/)
-            typeId = match ? Number(match[1]) : null
-        }
-        if (!typeId) {
-            continue
-        }
-        const desiredQuantity = desiredByTypeId.get(typeId)
-        if (!desiredQuantity) {
-            await deleteShipmentBovine(entry.id)
-            continue
-        }
-        if (entry.nbBovinSend !== desiredQuantity) {
-            await updateShipmentBovine(entry.id, {nbBovinSend: desiredQuantity})
-        }
-        desiredByTypeId.delete(typeId)
-    }
-
-    for (const [typeId, quantity] of desiredByTypeId.entries()) {
-        await createShipmentBovine({
-            shipment: shipmentIri,
-            shipmentType: `/api/shipment_types/${typeId}`,
-            nbBovinSend: quantity
-        })
-    }
-}
 const buildPayload = () => {
     const normalizedLicensePlate = form.licencePlate.trim()
     const normalizedShipmentDate = form.shipmentDate.trim()
@@ -563,6 +488,14 @@ const buildPayload = () => {
     const addressIri = normalizedAddressId
         ? `/api/addresses/${normalizedAddressId}`
         : null
+    const normalizedShipmentTypeId = selectedShipmentTypeId.value.trim()
+    const shipmentTypeIri = normalizedShipmentTypeId
+        ? `/api/shipment_types/${normalizedShipmentTypeId}`
+        : null
+
+    const rawQuantity = Number(shipmentQuantity.value ?? 0)
+    const normalizedQuantity = Number.isFinite(rawQuantity) ? Math.max(0,
+        Math.trunc(rawQuantity)) : 0
 
     return {
         licencePlate: normalizedLicensePlate,
@@ -572,20 +505,19 @@ const buildPayload = () => {
         carrier: carrierIri,
         driver: driverIri,
         user: userIri,
-        address: addressIri
+        address: addressIri,
+        shipmentType: shipmentTypeIri,
+        nbBovinSend: normalizedQuantity,
     }
 }
 
 const saveDraft = async () => {
     const payload = buildPayload()
     if (!shipmentStore.current) {
-        const created = await shipmentStore.createShipment({
+        await shipmentStore.createShipment({
             currentStep: 0,
             ...payload
         })
-        if (created) {
-            await syncBovinShipments(created.id, [])
-        }
         return
     }
 
@@ -593,10 +525,6 @@ const saveDraft = async () => {
         currentStep: shipmentStore.current.currentStep,
         ...payload
     })
-    await syncBovinShipments(
-        shipmentStore.current.id,
-        shipmentStore.current?.bovinShipments ?? []
-    )
 }
 
 defineExpose({saveDraft})
@@ -610,7 +538,6 @@ const validate = async () => {
         })
         if (created) {
             await shipmentStore.loadShipment(created.id)
-            await syncBovinShipments(created.id, shipmentStore.current?.bovinShipments ?? [])
             await router.push(`/shipment/${created.id}`)
         }
         return
@@ -621,6 +548,5 @@ const validate = async () => {
         ...payload
     })
     await shipmentStore.loadShipment(shipmentStore.current.id)
-    await syncBovinShipments(shipmentStore.current.id, shipmentStore.current?.bovinShipments ?? [])
 }
 </script>
diff --git a/frontend/components/shipment/shipment-loading.vue b/frontend/components/shipment/shipment-loading.vue
index 802e1b7..bdd8595 100644
--- a/frontend/components/shipment/shipment-loading.vue
+++ b/frontend/components/shipment/shipment-loading.vue
@@ -1,6 +1,6 @@
 <template>
     <div class="flex flex-col items-center gap-[118px]">
-        <h1 class="font-bold text-5xl uppercase text-primary-500">Charment des bovins</h1>
+        <h1 class="font-bold text-5xl uppercase text-primary-500">Chargement des bovins</h1>
         <div
             class="w-full flex flex-col items-center justify-center">
             <UiLoadingDots />
diff --git a/frontend/pages/shipment/finish-shipment.vue b/frontend/pages/shipment/finish-shipment.vue
index 4a0cee2..451da2c 100644
--- a/frontend/pages/shipment/finish-shipment.vue
+++ b/frontend/pages/shipment/finish-shipment.vue
@@ -28,9 +28,9 @@
                 <div>{{ shipment.customer?.name }}</div>
                 <div>{{ shipment.address?.fullAddress }}</div>
                 <div>
-                    <template v-if="formatBovinShipmentLines(shipment).length">
+                    <template v-if="formatShipmentLines(shipment).length">
                         <div
-                            v-for="(line, index) in formatBovinShipmentLines(shipment)"
+                            v-for="(line, index) in formatShipmentLines(shipment)"
                             :key="index"
                             class="leading-5"
                         >
@@ -62,16 +62,17 @@ const formatWeighing = (shipment: ShipmentData) => {
     return `${gross - tare} kg`
 }
 
-const formatBovinShipmentLines = (shipment: ShipmentData) => {
-    if (!shipment.bovinShipments?.length) {
+
+const formatShipmentLines = (shipment: ShipmentData) => {
+    if (!shipment.shipmentType && shipment.nbBovinSend == null) {
         return []
     }
-    return shipment.bovinShipments.map((entry) => {
-        const label = typeof entry.shipmentType === 'string'
-            ? entry.shipmentType
-            : entry.shipmentType?.label
-        return `${label ?? '—'} : ${entry.nbBovinSend ?? '—'}`
-    })
+
+    const label = typeof shipment.shipmentType === 'string'
+        ? shipment.shipmentType
+        : shipment.shipmentType?.label
+
+    return [`${label ?? '—'} : ${shipment.nbBovinSend ?? '—'}`]
 }
 
 const goShipment = (id: number) => {
diff --git a/frontend/pages/shipment/waiting-shipment.vue b/frontend/pages/shipment/waiting-shipment.vue
index 3274d4d..eb8906e 100644
--- a/frontend/pages/shipment/waiting-shipment.vue
+++ b/frontend/pages/shipment/waiting-shipment.vue
@@ -24,12 +24,12 @@
                 @click="goToShipment(shipment.id)"
                 @keydown.enter="goToShipment(shipment.id)"
             >
-                <div>{{ shipment.customer?.label }}</div>
+                <div>{{ shipment.customer?.name }}</div>
                 <div>{{ shipment.address?.fullAddress }}</div>
                 <div>
-                    <template v-if="formatBovinShipmentLines(shipment).length">
+                    <template v-if="formatShipmentLines(shipment).length">
                         <div
-                            v-for="(line, index) in formatBovinShipmentLines(shipment)"
+                            v-for="(line, index) in formatShipmentLines(shipment)"
                             :key="index"
                             class="leading-5"
                         >
@@ -55,16 +55,17 @@ const router = useRouter()
 const goToShipment = (id: number) => {
     router.push(`/shipment/${id}`)
 }
-const formatBovinShipmentLines = (shipment: ShipmentData) => {
-    if (!shipment.bovinShipments?.length) {
+
+const formatShipmentLines = (shipment: ShipmentData) => {
+    if (!shipment.shipmentType && shipment.nbBovinSend == null) {
         return []
     }
-    return shipment.bovinShipments.map((entry) => {
-        const label = typeof entry.shipmentType === 'string'
-            ? entry.shipmentType
-            : entry.shipmentType?.label
-        return `${label ?? '—'} : ${entry.nbBovinSend ?? '—'}`
-    })
+
+    const label = typeof shipment.shipmentType === 'string'
+        ? shipment.shipmentType
+        : shipment.shipmentType?.label
+
+    return [`${label ?? '—'} : ${shipment.nbBovinSend ?? '—'}`]
 }
 
 onMounted(async () => {
diff --git a/frontend/services/bovin-shipment.ts b/frontend/services/bovin-shipment.ts
deleted file mode 100644
index d14e855..0000000
--- a/frontend/services/bovin-shipment.ts
+++ /dev/null
@@ -1,50 +0,0 @@
-import { useApi } from '~/composables/useApi'
-import type { BovinShipmentData } from '~/services/dto/bovin-shipment-data'
-import type { ShipmentBovinePayload, BovinShipmentListResponse } from '~/services/dto/bovin-shipment-data'
-
-export async function getBovinShipmentList(
-    shipmentIri: string
-): Promise<BovinShipmentData[]> {
-    const api = useApi()
-    const response = await api.get<BovinShipmentListResponse>(
-        'bovin_shipments',
-        { shipment: shipmentIri },
-        {
-            toastErrorKey: 'errors.shipmentBovine.list'
-        }
-    )
-
-    if (Array.isArray(response)) {
-        return response
-    }
-    if (response && typeof response === 'object' && Array.isArray(response['hydra:member'])) {
-        return response['hydra:member']
-    }
-    return []
-}
-
-export async function createShipmentBovine(
-    payload: ShipmentBovinePayload
-): Promise<BovinShipmentData> {
-    const api = useApi()
-    return api.post<BovinShipmentData>('bovin_shipments', payload, {
-        toastErrorKey: 'errors.shipmentBovine.create'
-    })
-}
-
-export async function deleteShipmentBovine(id: number): Promise<void> {
-    const api = useApi()
-    await api.delete<void>(`bovin_shipments/${id}`, {}, {
-        toastErrorKey: 'errors.shipmentBovine.delete'
-    })
-}
-
-export async function updateShipmentBovine(
-    id: number,
-    payload: Partial<ShipmentBovinePayload>
-): Promise<BovinShipmentData> {
-    const api = useApi()
-    return api.patch<BovinShipmentData>(`bovin_shipments/${id}`, payload, {
-        toastErrorKey: 'errors.shipmentBovine.update'
-    })
-}
diff --git a/frontend/services/dto/bovin-shipment-data.ts b/frontend/services/dto/bovin-shipment-data.ts
deleted file mode 100644
index 6bbca73..0000000
--- a/frontend/services/dto/bovin-shipment-data.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import type {ShipmentTypeData} from "~/services/dto/shipment-type-data";
-
-export interface BovinShipmentData {
-    id: number
-    nbBovinSend: number | null
-    shipment?: string | null
-    shipmentType?: ShipmentTypeData | null
-}
-
-export type ShipmentBovinePayload = {
-    nbBovinSend: number
-    shipment: string
-    shipmentType: string
-}
-
-export type BovinShipmentListResponse =
-    | BovinShipmentData[]
-    | { 'hydra:member'?: BovinShipmentData[] }
diff --git a/frontend/services/dto/shipment-data.ts b/frontend/services/dto/shipment-data.ts
index 8a5dbfd..5561c85 100644
--- a/frontend/services/dto/shipment-data.ts
+++ b/frontend/services/dto/shipment-data.ts
@@ -9,12 +9,6 @@ export interface ShipmentTypeData {
     code: string
 }
 
-export interface BovinShipmentData {
-    id?: number
-    shipmentType?: ShipmentTypeData | string | null
-    nbBovinSend: number | null
-}
-
 export type ShipmentData = {
     id: number
     identificationNumber?: string | null
@@ -26,7 +20,8 @@ export type ShipmentData = {
     carrier?: CarrierData | null
     truck?: TruckData | null
     customer?: CustomerData | null
-    bovinShipments?: BovinShipmentData[] | null
+    shipmentType?: ShipmentTypeData | null
+    nbBovinSend?: number | null
     weights?: WeightShipmentEntryData[] | null
 
 }
@@ -59,9 +54,9 @@ export type ShipmentPayload = {
     carrier?: string | null
     truck?: string | null
     customer?: string | null
-    bovinShipments?: string[] | null
     address?: string | null
     user?: string | null
     driver?: string | null
-
+    shipmentType?: string | null
+    nbBovinSend?: number | null
 }
diff --git a/migrations/Version20260218144828.php b/migrations/Version20260218144828.php
new file mode 100644
index 0000000..120b66c
--- /dev/null
+++ b/migrations/Version20260218144828.php
@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260218144828 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE bovin_shipment DROP CONSTRAINT fk_7049f4502ee48a36');
+        $this->addSql('ALTER TABLE bovin_shipment DROP CONSTRAINT fk_7049f4507be036fc');
+        $this->addSql('DROP TABLE bovin_shipment');
+        $this->addSql('ALTER TABLE shipment ADD nb_bovin_send INT NOT NULL');
+        $this->addSql('ALTER TABLE shipment ADD shipment_type_id INT DEFAULT NULL');
+        $this->addSql('ALTER TABLE shipment ADD CONSTRAINT FK_2CB20DC2EE48A36 FOREIGN KEY (shipment_type_id) REFERENCES shipment_type (id) NOT DEFERRABLE');
+        $this->addSql('CREATE INDEX IDX_2CB20DC2EE48A36 ON shipment (shipment_type_id)');
+        $this->addSql('DROP INDEX uniq_weight_shipment_type');
+        $this->addSql('DROP INDEX uniq_weight_reception_type');
+        $this->addSql('ALTER INDEX idx_weight_shipment RENAME TO IDX_7CD55417BE036FC');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE TABLE bovin_shipment (id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL, nb_bovin_send INT NOT NULL, shipment_id INT DEFAULT NULL, shipment_type_id INT DEFAULT NULL, PRIMARY KEY (id))');
+        $this->addSql('CREATE INDEX idx_7049f4507be036fc ON bovin_shipment (shipment_id)');
+        $this->addSql('CREATE INDEX idx_7049f4502ee48a36 ON bovin_shipment (shipment_type_id)');
+        $this->addSql('CREATE UNIQUE INDEX uniq_bovin_shipment_one_type ON bovin_shipment (shipment_id)');
+        $this->addSql('ALTER TABLE bovin_shipment ADD CONSTRAINT fk_7049f4502ee48a36 FOREIGN KEY (shipment_type_id) REFERENCES shipment_type (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE bovin_shipment ADD CONSTRAINT fk_7049f4507be036fc FOREIGN KEY (shipment_id) REFERENCES shipment (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE shipment DROP CONSTRAINT FK_2CB20DC2EE48A36');
+        $this->addSql('DROP INDEX IDX_2CB20DC2EE48A36');
+        $this->addSql('ALTER TABLE shipment DROP nb_bovin_send');
+        $this->addSql('ALTER TABLE shipment DROP shipment_type_id');
+        $this->addSql('CREATE UNIQUE INDEX uniq_weight_shipment_type ON weight (shipment_id, type)');
+        $this->addSql('CREATE UNIQUE INDEX uniq_weight_reception_type ON weight (reception_id, type)');
+        $this->addSql('ALTER INDEX idx_7cd55417be036fc RENAME TO idx_weight_shipment');
+    }
+}
diff --git a/src/Entity/BovinShipment.php b/src/Entity/BovinShipment.php
deleted file mode 100644
index 60d7708..0000000
--- a/src/Entity/BovinShipment.php
+++ /dev/null
@@ -1,101 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Entity;
-
-use ApiPlatform\Doctrine\Orm\Filter\SearchFilter;
-use ApiPlatform\Metadata\ApiFilter;
-use ApiPlatform\Metadata\ApiProperty;
-use ApiPlatform\Metadata\ApiResource;
-use ApiPlatform\Metadata\Delete;
-use ApiPlatform\Metadata\Get;
-use ApiPlatform\Metadata\GetCollection;
-use ApiPlatform\Metadata\Patch;
-use ApiPlatform\Metadata\Post;
-use Doctrine\ORM\Mapping as ORM;
-use Symfony\Component\Serializer\Attribute\Groups;
-
-#[ORM\Entity]
-#[ApiFilter(SearchFilter::class, properties: ['shipment' => 'exact'])]
-#[ORM\UniqueConstraint(name: 'uniq_bovin_shipment_one_type', columns: ['shipment_id'])]
-#[ORM\Table(name: 'bovin_shipment')]
-#[ApiResource(
-    operations: [
-        new Get(
-            requirements: ['id' => '\d+'],
-            normalizationContext: ['groups' => ['shipment-bovine:read']],
-        ),
-        new GetCollection(
-            normalizationContext: ['groups' => ['shipment-bovine:read']],
-        ),
-
-        new Post(
-            normalizationContext: ['groups' => ['shipment-bovine:read']],
-            denormalizationContext: ['groups' => ['shipment-bovine:write']],
-        ),
-        new Patch(
-            normalizationContext: ['groups' => ['shipment-bovine:read']],
-            denormalizationContext: ['groups' => ['shipment-bovine:write']],
-        ),
-        new Delete(),
-    ],
-    security: "is_granted('ROLE_USER')",
-)]
-class BovinShipment
-{
-    #[ORM\Id]
-    #[ORM\GeneratedValue]
-    #[ORM\Column]
-    #[Groups(['shipment:read', 'shipment-bovine:read'])]
-    private ?int $id = null;
-
-    #[ORM\ManyToOne(inversedBy: 'bovinShipments')]
-    #[Groups(['shipment-bovine:read', 'shipment-bovine:write'])]
-    #[ApiProperty(readableLink: true)]
-    private ?Shipment $shipment = null;
-
-    #[ORM\ManyToOne]
-    #[Groups(['shipment:read', 'shipment-bovine:write', 'shipment-bovine:read'])]
-    #[ApiProperty(readableLink: true)]
-    private ?ShipmentType $shipmentType = null;
-
-    #[ORM\Column]
-    #[Groups(['shipment:read', 'shipment-bovine:write', 'shipment-bovine:read'])]
-    private ?int $nbBovinSend = null;
-
-    public function getId(): ?int
-    {
-        return $this->id;
-    }
-
-    public function getShipment(): ?Shipment
-    {
-        return $this->shipment;
-    }
-
-    public function setShipment(?Shipment $shipment): void
-    {
-        $this->shipment = $shipment;
-    }
-
-    public function getShipmentType(): ?ShipmentType
-    {
-        return $this->shipmentType;
-    }
-
-    public function setShipmentType(?ShipmentType $shipmentType): void
-    {
-        $this->shipmentType = $shipmentType;
-    }
-
-    public function getNbBovinSend(): ?int
-    {
-        return $this->nbBovinSend;
-    }
-
-    public function setNbBovinSend(?int $nbBovinSend): void
-    {
-        $this->nbBovinSend = $nbBovinSend;
-    }
-}
diff --git a/src/Entity/Shipment.php b/src/Entity/Shipment.php
index 61b41b0..7992721 100644
--- a/src/Entity/Shipment.php
+++ b/src/Entity/Shipment.php
@@ -123,17 +123,15 @@ class Shipment
     #[ApiProperty(readableLink: true)]
     private ?Customer $customer = null;
 
-    /**
-     * @var Collection<int, BovinShipment>
-     */
-    #[ORM\OneToMany(
-        targetEntity: BovinShipment::class,
-        mappedBy: 'shipment',
-        cascade: ['persist', 'remove'],
-        orphanRemoval: true
-    )]
+    #[ORM\ManyToOne(inversedBy: 'shipments')]
+    #[ORM\JoinColumn(nullable: true)]
     #[Groups(['shipment:read', 'shipment:write'])]
-    private Collection $bovinShipments;
+    #[ApiProperty(readableLink: true)]
+    private ?ShipmentType $shipmentType = null;
+
+    #[ORM\Column]
+    #[Groups(['shipment:read', 'shipment:write'])]
+    private int $nbBovinSend = 0;
 
     /**
      * @var Collection<int, Weight>
@@ -156,8 +154,7 @@ class Shipment
 
     public function __construct()
     {
-        $this->bovinShipments = new ArrayCollection();
-        $this->weights        = new ArrayCollection();
+        $this->weights = new ArrayCollection();
     }
 
     public function getId(): ?int
@@ -195,6 +192,26 @@ class Shipment
         $this->currentStep = $currentStep;
     }
 
+    public function getShipmentType(): ?ShipmentType
+    {
+        return $this->shipmentType;
+    }
+
+    public function setShipmentType(?ShipmentType $shipmentType): void
+    {
+        $this->shipmentType = $shipmentType;
+    }
+
+    public function getNbBovinSend(): int
+    {
+        return $this->nbBovinSend;
+    }
+
+    public function setNbBovinSend(int $nbBovinSend): void
+    {
+        $this->nbBovinSend = $nbBovinSend;
+    }
+
     public function getIsValid(): ?bool
     {
         return $this->isValid;
@@ -261,37 +278,6 @@ class Shipment
         $this->customer = $customer;
     }
 
-    public function getBovinShipments(): Collection
-    {
-        return $this->bovinShipments;
-    }
-
-    public function setBovinShipments(Collection $bovinShipments): void
-    {
-        $this->bovinShipments = $bovinShipments;
-    }
-
-    public function addBovinShipment(BovinShipment $bovinShipment): self
-    {
-        if (!$this->bovinShipments->contains($bovinShipment)) {
-            $this->bovinShipments->add($bovinShipment);
-            $bovinShipment->setShipment($this);
-        }
-
-        return $this;
-    }
-
-    public function removeBovinShipment(BovinShipment $bovinShipment): self
-    {
-        if ($this->bovinShipments->removeElement($bovinShipment)) {
-            if ($bovinShipment->getShipment() === $this) {
-                $bovinShipment->setShipment(null);
-            }
-        }
-
-        return $this;
-    }
-
     /**
      * @return Collection<int, Weight>
      */
diff --git a/src/Entity/ShipmentType.php b/src/Entity/ShipmentType.php
index 0be6bc8..c8ae9a5 100644
--- a/src/Entity/ShipmentType.php
+++ b/src/Entity/ShipmentType.php
@@ -7,6 +7,8 @@ namespace App\Entity;
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Get;
 use ApiPlatform\Metadata\GetCollection;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
 
@@ -40,6 +42,14 @@ class ShipmentType
     #[Groups(['shipment-type:read', 'shipment:read'])]
     private ?string $code = null;
 
+    #[ORM\OneToMany(mappedBy: 'shipmentType', targetEntity: Shipment::class)]
+    private Collection $shipments;
+
+    public function __construct()
+    {
+        $this->shipments = new ArrayCollection();
+    }
+
     public function getId(): ?int
     {
         return $this->id;
diff --git a/templates/shipment_voucher.html.twig b/templates/shipment_voucher.html.twig
index 66cd51b..050466e 100644
--- a/templates/shipment_voucher.html.twig
+++ b/templates/shipment_voucher.html.twig
@@ -250,13 +250,11 @@
             <td>
                 <strong>Bovin</strong><br><br>
                 <div class="bigtable-notes">
-                    {% if shipment.bovinShipments is not empty %}
-                        {% for entry in shipment.bovinShipments %}
-                            <p>
-                                {{ entry.shipmentType ? entry.shipmentType.label : '-' }} :
-                                {{ entry.nbBovinSend ?? 0 }}
-                            </p>
-                        {% endfor %}
+                    {% if shipment.shipmentType %}
+                        <p>
+                            {{ shipment.shipmentType.label ?? '-' }} :
+                            {{ shipment.nbBovinSend ?? 0 }}
+                        </p>
                     {% else %}
                         <p>-</p>
                     {% endif %}