| ชื่อเรื่อง | : | The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs. |
| นักวิจัย | : | Gonzal, Angelito C. , Aralar, Emiliano V. , Pavico, Josefina Ma. F. |
| คำค้น | : | Fish culture , Fish eggs , Hatching , Survival , Water hardness , Hypophthalmichthys molitrix |
| หน่วยงาน | : | Southeast Asian Fisheries Development Center, Philippines |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2530 |
| อ้างอิง | : | Gonzal, A. C., Aralar, E. V., & Pavico, J. M. F. (1987). The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs. Aquaculture, 64(2), 111–118. , 0044-8486 , http://hdl.handle.net/10862/1270 , 10.1016/0044-8486(87)90347-4 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Aquaculture |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | An investigation was conducted to establish water hardness concentration for optimum hatching of silver carp (Hypophthalmichthys molitrix) eggs. Eggs were incubated for 19 h at 26.5°C at six levels of water hardness: 100, 200, 300, 400, 500 and 600 mg/l CaCO3. Water absorption at 100–200 mg/l CaCO3 caused eggs to burst prematurely and minimal water absorption occurred at 600 mg/l CaCO3. Chloride concentration at 0 and 6 h post-fertilization was significantly related to egg hatchability. Total ammonia-nitrogen at 6 h, pH at 6 h, magnesium hardness at 18 h and chlorides at 18 h significantly influence viability of larvae. A water hardness of 300–500 mg/l CaCO3 is recommended for the successful hatching of silver carp eggs. |
| บรรณานุกรม | : |
Gonzal, Angelito C. , Aralar, Emiliano V. , Pavico, Josefina Ma. F. . (2530). The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs..
: Southeast Asian Fisheries Development Center, Philippines. Gonzal, Angelito C. , Aralar, Emiliano V. , Pavico, Josefina Ma. F. . 2530. "The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs.".
: Southeast Asian Fisheries Development Center, Philippines. Gonzal, Angelito C. , Aralar, Emiliano V. , Pavico, Josefina Ma. F. . "The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs.."
: Southeast Asian Fisheries Development Center, Philippines, 2530. Print. Gonzal, Angelito C. , Aralar, Emiliano V. , Pavico, Josefina Ma. F. . The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs.. : Southeast Asian Fisheries Development Center, Philippines; 2530.
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