蝌蚪 · 分期Tadpoles · Staged

不同发育时期野生非洲爪蟾蝌蚪Staged wild-type Xenopus tadpoles

按 Nieuwkoop–Faber（NF）分期供应不同发育时期的蝌蚪，可指定目标时期，用于发育生物学、器官再生与发育毒理学研究。Supplied by Nieuwkoop–Faber (NF) stages, specifiable on request — for developmental biology, organ regeneration and developmental toxicology.

参数Parameter	详情Details
物种Species	Xenopus laevis （野生型）(wild-type)
分期Staging	Nieuwkoop–Faber 各时期（可指定）NF stages (specifiable)
用途Use	发育、再生、行为与毒理研究Development, regeneration, behavior, toxicology
供应Availability	按需诱导繁殖，提前预约Bred on demand; reserve ahead
运输Shipping	控温包装活体运输Temperature-controlled live shipping

💡 需要做发育毒性 / 致畸评价？可直接选择我们的蝌蚪胚胎发育毒性实验服务。💡 Need toxicity/teratogenicity testing? See our embryonic toxicity service.

询价与预约Enquire & reserve 发育毒性实验Toxicity testing

Nieuwkoop–Faber 分期说明Nieuwkoop–Faber staging

本中心按 Nieuwkoop–Faber（NF）标准分期供应蝌蚪，覆盖 NF 1–52 期，涵盖早期胚胎发育的全部关键阶段。如需特定期数，请下单时注明目标 NF 期。We supply tadpoles staged by the Nieuwkoop–Faber (NF) system, covering NF stages 1–52 across all major developmental milestones. Specify the target NF stage when ordering.

发育阶段Stage name	NF 期数NF stages	主要特征Key features
受精至卵裂期Fertilisation → cleavage	NF 1–8	受精卵→2细胞→桑椹胚，卵裂同步性强Zygote → 2-cell → morula; synchronous cleavage
囊胚期Blastula	NF 8–9	囊腔形成，动植物半球分界明显Blastocoel forms; animal/vegetal poles distinct
原肠胚期Gastrula	NF 10–12	背唇形成，三胚层建立，组织者诱导启动Dorsal lip forms; three germ layers; organizer induction
神经胚期Neurula	NF 13–20	神经管关闭，头部雏形出现Neural tube closure; head rudiment forms
尾芽至游泳蝌蚪期Tailbud → swimming tadpole	NF 21–45	器官分化，心跳出现，开始主动游泳Organ differentiation; heartbeat; active swimming
后期蝌蚪Late tadpole	NF 46–52	后肢萌出，进入变态前期Hindlimb buds emerge; pre-metamorphic stage

适用研究场景Research applications

发育生物学：精准获取特定发育窗口的胚胎材料，用于基因表达分析、显微注射与实时表型观察。Developmental biology: precise access to any developmental window for gene expression analysis, microinjection and live phenotyping.
器官再生研究：NF 40–47 期蝌蚪尾部具有显著再生能力，是研究组织再生与干细胞机制的经典模型。Regeneration research: NF 40–47 tails regenerate efficiently — a classic model for tissue regeneration and stem cell biology.
发育毒理学：FETAX（青蛙胚胎致畸性实验）等标准毒性测试方案的推荐生物材料，灵敏度高、检测周期短。Developmental toxicology: recommended biological material for FETAX and related embryotoxicity protocols — sensitive, fast read-out.
教学示范：心跳清晰可见，适合演示早期胚胎发育全过程，广泛用于高校发育生物学课程。Teaching: visible heartbeat and transparent body make tadpoles ideal for demonstrating early development in undergraduate courses.

供货说明Supply notes

按需诱导繁殖，建议提前 5–7 天预约，以确保获得目标分期样本。Bred on demand; please reserve 5–7 days in advance to ensure target-stage availability.
全程冷链充氧保活运输，到货后建议尽快转入适宜水质养殖；可提供配套养殖方案与技术建议。Cold-chain oxygenated live shipping; transfer to suitable water promptly on arrival. Husbandry protocols and technical support available.

其他供应Other supply

成年野生爪蟾Adult wild-type

卵母细胞现货供应Oocytes in stock

不同发育时期野生非洲爪蟾蝌蚪Staged wild-type Xenopus tadpoles

Nieuwkoop–Faber 分期说明Nieuwkoop–Faber staging

适用研究场景Research applications

供货说明Supply notes

其他供应Other supply

成年野生爪蟾Adult wild-type

卵母细胞现货供应Oocytes in stock

白化非洲爪蟾Albino Xenopus