Effect of rest systems during spawning season on the spawning efficiency of Nile tilapia in commercial hatcheries (Record no. 61910)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02321cab a2200265Ia 45 0 |
| 001 - CONTROL NUMBER | |
| control field | u213305 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | SIRSI |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 111127s2015 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 EJAP V52 No3 4 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Abou-Zied, R. M. |
| 240 10 - UNIFORM TITLE | |
| Uniform title | Egyptian journal of animal production, 2015 v. 52 (3) |
| Medium | [electronic resource]. |
| 245 10 - TITLE STATEMENT | |
| Title | Effect of rest systems during spawning season on the spawning efficiency of Nile tilapia in commercial hatcheries |
| Medium | [electronic resource]. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تأثير نظام الراحة اثناء موسم التفريخ على كفاءة تفريخ البلطى النيلى فى المفرخات التجارية. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | p.173-177. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Includes references. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This experiment was conducted to compare the effect of two resting system for 15 days of broodstock (rest in hapas and rest in ponds) versus no-resting control treatment on 6 months larvae production and spawning synchrony of Nile tilapia Oreochromis niloticus stocked in 12 hapa with a water volume of 25 m3/hapa suspended in earthen pond, four hapa/treatment. Adult males and females with mean body weights of 140 g and 125.4 g, were stocked at a rate of 120 fish/hapa with a male to female sex ratio of 1:3. Water temperature at 29 ± 1.0 oc and salinity 2.4 ppt were maintained throughout the experiment. The results showed that broodstock in the rest system had higher seed production and spawning synchrony compared with those in no rest. The resting system resulted in an increase from 20.6 to 31. 7% in larvae/female. The different spawning parameters of broodstock in the rest in hapa and rest in pond were higher than in the no rest (control). Results suggested that broodstock resting strategy had a long-term improvement effect on larvae production and spawning synchrony, and resting all breeders in ponds was more profitable but faced a problem, its needed two pond more than hatchery pond which is not available in most hatcheries. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Summary in Arabic. |
| 596 ## - | |
| -- | 1 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Nile tilapia |
| General subdivision | Spawning. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Fish hatcheries. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Egyptian Journal of Animal Production. |
| Related parts | 2015.v.52 (3) |
| International Standard Serial Number | 0302-4520 |
| Control subfield | nnas |
| Record control number | u196001 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://nile.enal.sci.eg/EALE/2015/EJAP/5215/3/173.pdf">http://nile.enal.sci.eg/EALE/2015/EJAP/5215/3/173.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.