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Details van artikel 31 van 49 gevonden artikelen
| Titel: |
Limnological Studies of Intensively Stocked Grass Carp Rearing Ponds |
| Auteur: |
Muhammad Javed A. N. Sheri |
| Verschenen in: |
Pakistan journal of biological sciences |
| Paginering: | Jaargang 1 (1998) nr. 4 pagina's 363-365 |
| Jaar: |
1998 |
| Inhoud: |
The impact of three iso-caloric test diets, viz. 30, 35 and 40 per cent crude protein (C.P.) on the physico-chemical characteristics of water and grass carp yields was studied for 270 days. In control treatment, fish yield was 84.47 per cent dependent on water nitrates, phosphates and temperature while nitrates along with hardness, alkalinity, pH and temperature accounted for 85.90 per cent variations in fish yield under 30 per cent C.P. treatment. In 35 per cent C.P. level fish yield showed positively significant regression on ammonia-N, electrical conductivity and water temperature. In 40 per cent C.P. planktonic productivity showed positively significant while ammonia-N had negatively significant regression on fish yield. However, combined contribution of these two variables towards fish yield was 68.49 per cent. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 31 van 49 gevonden artikelen
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