Induced breeding of silver carp hypophthalmichthys molitrix (valenciennes) under the egyptian environmental conditions (Record no. 42436)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03412cab a2200301Ia 45 0 |
| 001 - CONTROL NUMBER | |
| control field | u187469 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | SIRSI |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 101202s2006 ua ss b eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EAL |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | ara |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | ART MUJAS V31 NO5 17 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | EI-Gamal, A. A. |
| 240 10 - UNIFORM TITLE | |
| Uniform title | Mansoura University journal of agricultural sciences, 2006 v. 31 (5) |
| Medium | [electronic resource]. |
| 245 10 - TITLE STATEMENT | |
| Title | Induced breeding of silver carp hypophthalmichthys molitrix (valenciennes) under the egyptian environmental conditions |
| Medium | [electronic resource]. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | استحداث التبويض فى أسماك الكارب الفضى ( hypophthalmichthys molitrix ) تحت ظروف البيئة المصرية. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | p.2787-2804. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Includes references. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The reproductive performance of 181 female silver carps Hypopthalmichthys molitrix (Valenciennes) was followed up during 8 months (March-October) in two successive years, 2004 and 2005 under the Egyptian environmental conditions. To study their reproductive performance, ovulation was stimulated in females with two doses of a carp pituitary powder (Argent, Philippines, Manila): a preparatory dose (0.3 mg/kg) followed by a resolving dose of 4.0 mg/kg body weight after 9 h, whilst males were stimulated with one single dose of 3 mg /kg. Females were stripped approximately 7-8 h after the second injection and eggs were immediately fertilized 'dry method'. Fertilized eggs were incubated in conical shaped fiberglass tanks supplied with aerated fresh flow-through water. An attempt was also carried out to outline the age at maturity in 214 females during 2005. The monthly trend of spawning traits in terms of percentage of ovulated females, egg weight in grams and as a percentage of female's body weight, number of seeds per kg/fish, percentage of fertilized eggs, larval survival rate and percentage of deformed larvae were estimated. Highest female response to induced breeding and better larval quality were obtainable from April to June. Females of silver carp attained sexual maturity at a body weight of less than 2 kg and an age of two years old or less. The lowest percentage of spawned fish was recorded in March (66.7and 50.0% in 2004 and 2005, respectively). During other experimental months percentage of ovulated females was in the range of 83.3 to 100%. The latency time was approximately 7.5 h at a temperature of 25.5ºC. Stripped eggs as a percentage of female body weight (ESI) ranged from 6.87 to 15.75%. Relative fecundity of females was in the range of 61,070 and 156.440 eggs/kg. Hatching occurred after approximately 20 hours at 25.5 ºC water temperature. Fertilization and survival rates ranged from 85.91 to 97.86% and 72.72 to 80.72%, respectively. The lowest percentages of deformed larvae (1112%) were observed during April-May compared with either that obtained during the early season (March: 15-20%) or at the late spawning season (July-October: 16-18%). |
| 546 ## - LANGUAGE NOTE | |
| Language note | Summary in Arabic. |
| 596 ## - | |
| -- | 1 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Silver carp |
| General subdivision | Breeding. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Silver carp |
| General subdivision | Larvae. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Fish ponds |
| General subdivision | Environmental aspects. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | sexual maturity. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Amer, M. Abdel-Baky |
| 773 0# - HOST ITEM ENTRY | |
| Title | Mansoura University Journal of Agricultural Sciences. |
| Related parts | 2006.v.31(5) |
| International Standard Serial Number | 1110-0346 |
| Control subfield | nnas |
| Record control number | u182197 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://nile.enal.sci.eg/EALE/2006/MUJAS/3106/5/2787.pdf">http://nile.enal.sci.eg/EALE/2006/MUJAS/3106/5/2787.pdf</a> |
| Public note | Full text Article |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Articles |
| Source of classification or shelving scheme | Library of Congress Classification |
No items available.