Dietary administration of an LHRH analogue induces spawning of spotted seatrout (Cynoscion nebulosus)
Dietary administration of an LHRH analogue induces spawning of spotted seatrout (Cynoscion nebulosus)
复制标题
膳食给予 LHRH 类似物可诱导斑点鳟鱼 (Cynoscion nebulosus) 产卵
DOI：
10.1016/0044-8486(89)90183-x
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
N. Boyd
中科院分区：
文献类型：
--
作者：
P. Thomas;N. Boyd
研究了单次口服脱甘氨酸10-[D-Ala 6]-促黄体生成激素释放激素（1-9）-乙酰胺（LHRHa）（0.2- 2.5mg/kg体重）对斑石首鱼（Cynoscion nebulosus）排卵和产卵的影响。在4个不同的实验中，对雌性口服1.0-2.5 mg LHRHa/kg，导致32-38 h后成功产卵，平均受精率和孵化成功率分别为93.3%和74.6%。较低剂量的LHRHa（0.2 mg/kg）在随后的两个实验中无效。这些数据表明，口服1毫克LHRHa/公斤是一个可靠的方法，诱导排卵的斑点seatrout，导致可预测的产卵38小时内喂养。这种非侵入性的治疗可能是特别有用的诱导产卵的硬骨鱼是容易受到处理压力。
The effects of a single oral administration of des-Gly10-[D-Ala6]-luteinizing hormone-releasing hormone (1–9)-ethylamide (LHRHa) in the diet (0.2–2.5 mg/kg body weight) on ovulation and spawning of spotted seatrout (Cynoscion nebulosus) were examined. Oral administration of 1.0–2.5 mg LHRHa/kg to females in four separate experiments resulted in successful spawning 32–38 h later with mean fertilization and hatching success rates of 93.3% and 74.6%, respectively. A lower dose of LHRHa (0.2 mg/kg) was ineffective in two subsequent experiments. The data suggest that oral administration of 1 mg LHRHa/kg is a reliable method of inducing ovulation in spotted seatrout, resulting in predictable spawning within 38 h of feeding. This noninvasive treatment may be particularly useful for induced spawning of teleosts which are susceptible to handling stress.