Development of Dry Pellets for Broodstock Yellowtail

亲鱼黄尾鱼干颗粒的开发

• 批准号: 06404014
• 负责人: WATANABE Takeshi
• 金额: $ 13.31万
• 依托单位: Tokyo University of Fisheries
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06404014/
• 关键词: Broodstock; Feed; Yellowtail; Soft dry pellet; Krill meal; Carotenoid; Astaxanthin

This research was conducted to gather some basic information necessary for development of quality dry pellets for yellowtail broodstock. The spawning results of yellowtail broodstock fed newly developed soft-dry pellets (SDP) and Oregon type of moist pellets (MP) and/or frozen raw fish (RF) were compared in the first trial.Yellowtail having an average body weight of 3.7kg, which had been cultured with extruded dry pellets (EP) from juvenile stage (about 0.8g BW) for 20 months, were divided into two lots of 25 fish each and stocked into the 5x5x5m floating net cages. The first group was fed SDP containing 10% krill meal and the second group was fed MP.Yet another lot of 25 broodstock fish which had been fed EP for 14 months and subsequently fed RF for 6 months, continued to receive the same food until spawning manipulation. Two days after HCG injection, brood fish from SDP and MP started to spawn and continued for 8 and 10 days, respectively, but broodstock fed RF spawned only once during this period. The quality of eggs in terms of buoyancy, fertilization and hatchability were found to be superior to those from the MP group, although the SDP group produced a half of the total number of eggs obtained from the MP group.In the second trial conducted at the practical scale of seed production, the results clearly indicated that SDP was satisfactory enough for broodstock management of yellowtail and their egg collection.These results would enable the development of quality dry pellets for yellowtail broodstock in the near future.

进行了这项研究是为了收集一些为黄尾鱼育成的高质量干颗粒所需的基本信息。 The spawning results of yellowtail broodstock fed newly developed soft-dry pellets (SDP) and Oregon type of moist pellets (MP) and/or frozen raw fish (RF) were compared in the first trial.Yellowtail having an average body weight of 3.7kg, which had been cultured with extruded dry pellets (EP) from juvenile stage (about 0.8g BW) for 20 months, were divided into two lots of 25 fish每个都放入5x5x5m的浮网笼中。第一组被喂入含有10％磷虾粉的SDP，第二组被喂养MP. YET另外25种育雏鱼，该鱼被喂养了EP 14个月，随后将RF喂了6个月，继续接受相同的食物，直到产卵操纵。 HCG注射两天后，来自SDP和MP的育雏鱼开始产卵，分别持续了8和10天，但是在此期间，Broodstock Fed RF仅产卵一次。发现在浮力，施肥和孵化能力方面，卵的质量优于MP组的鸡蛋，尽管SDP组产生了从MP组获得的鸡蛋总数的一半，第二次试验以种子生产的实际规模进行，结果清楚地表明，SDP足以满足其良好的良好的元素，以使其良好的元素效果和黄色的元素效果。在不久的将来。

项目成果

T.Watanabe, V.Verakunpiriya, K.Mushiake, K.Kawano, and I.Hasegawa: "The first spawn-taking from broodstock yellowtail cultured with extruded dry pellet." Fisheries Science. 62(2)(in press). (1996)

T.Watanabe、V.Verakunpiriya、K.Mushiake、K.Kawano 和 I.Hasekawa：“首次从用挤压干颗粒培养的亲鱼黄尾鱼中产卵。”

V.Verakunpiriya, T.Watanabe, K.Mushiake, V.Kiron, S.Satoh and T.Takeuchi: "Effect of broodstock diets on the chemical components of milt and eggs produced by yellowtail." Fisheries Sciences. 62(4)(in press). (1996)

V.Verakunpiriya、T.Watanabe、K.Mushiake、V.Kiron、S.Satoh 和 T.Takeuchi：“亲鱼饲料对黄尾鱼产生的鱼白和鱼卵化学成分的影响”。

T.Watanabe et al.: "The first spawn-taking from broodstock yellow tail cultured with extrudeal dry pellet" Fisheries Science. 62(印刷中). (1996)

T. Watanabe 等人：“首次从亲鱼黄尾鱼中产卵”，渔业科学 62（出版中）。

T.Watanabe et al: "The first spawn-taking from broodstock yellowtail cultured with extruded dry pellet" Fisheries Science. 62(印刷中). (1996)

T. Watanabe 等人：“首次从用挤压干颗粒养殖的亲鱼中产卵”《渔业科学》62（出版中）。

V.Verakunnpiriya et al.: "Effect of broodstock diets on the chemical components of milt and eggs produced by yellowtail" Fisheries Science. 62(印刷中). (1996)

V.Verakunnpiriya 等人：“亲鱼饲料对黄尾鱼鱼白和鱼卵化学成分的影响”，渔业科学 62（出版中）。