AI SearchEffect of hapa size on conditioning of broodstock Oreochromis niloticus in fertilized earthen ponds (Record no. 34390)
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|---|---|
| fixed length control field | 03695cas a2200421 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818094947.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 111005s1990 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b1022726x |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. AE-90-33 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ambali, Aggrey J. D. |
| 245 10 - TITLE STATEMENT | |
| Title | Effect of hapa size on conditioning of broodstock Oreochromis niloticus in fertilized earthen ponds |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1990 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 102 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. AE-90-33 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment requirements for the degree of Master of Science, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1990 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The study was carried out to determine the effect of manipulating hapa size during conditioning period of female Oreochromis niloticus brood stock in fertilized earthen pond on seed production. An equal biomass of female brood fish was stocked during conditioning in each of three different sized hapas, a) 2. 72m2(High density) b) 5.29m2(Medium density) and c ) 10.78m2(Low density). The stocked biomass\m2 was 0.Gkg ; 1.2-1 . 4kg and 2 . 3-2 . 5kg for low, medium and high stocking density respectively. After a period of 10 day conditioning, females were stocked in 40m~ hapas at a stocking ratio of 1:1 and allowed to spawn naturally over a period of 5 days. No significant difference in seed yield were recorded, treatments exceeded 3000 seed\kg female spawned per month 40x10 per total ha pond area. but and There was a positive response to the use of conditioned males for 5 days prior to spawning on seed production. Females stocked with conditioned males produced seed exceeding 8200 per kg females spawned while those stocked with unconditioned males produced less than 8200 seed per kg female spawned . The mean clutch size was significantly(p<0 . 05) higher in the low density treatments compared to the other two treatments 1042, 804 and 839 seed\female for low, medium a nd high densities respectively. However relative clutch size was not significantly different(p>0.05) among the three treatments 9, 9, 8 seed\g female for low, medium and high density treatments . Water quality deteriorated during day 45 to 60 of the experimental period when dissolved oxygen concentration was lower than 0.5mg\l in the conditioning heparin the morning. Decline in water quality coincided with drop in seed production . |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Tilapia |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Fishes |
| General subdivision | Reproduction |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Little, David C., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Machintosh, Donald J., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yakupitiyage, Amararatne, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | ICLARM\GTZ, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. AE-90-33 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B18266">http://203.159.5.9/ait-thesis/detail.php?q=B18266</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b1022726x |
| b | mnait |
| c | s |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240329 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | s |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003005583 |
| CREATED | CREATED : 1994-05-17 |
| RECORD Id | RECORD # : i10276361 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003005575 |
| CREATED | CREATED : 1994-05-17 |
| RECORD Id | RECORD # : i10276373 |
| LPATRON | LPATRON : 1015373 |
| LCHKIN | LCHKIN : 2003-02-23 |
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| Barcode | Barcode : 30050120363881 |
| CREATED | CREATED : 2016-05-27 |
| RECORD Id | RECORD # : i12999167 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. AE-90-33 | 30050003005583 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. AE-90-33 | 30050003005575 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. AE-90-33 | 30050120363881 | 18/08/2026 | 18/08/2026 | 40-Archives |