Citation
Muhammad Anamul Kabir, . and Alireza Ghaedi, . and Roshada Hashim, . Ovarian development and sexual maturation of female striped catfish Pangasianodon hypophthalmus (Sauvage 1878) reared in captivity. pp. 232-244. ISSN 0116-6514
Abstract
Developmental changes in the ovary of Pangasianodon hypophthalmus (Sauvage 1878) (initial weight 28424.2 g; initial age 6 months) held in captivity were examined over an 8-month period. Ovarian development was assessed macroscopically and microscopically and histological analysis was used to establish the stages of oocyte development. Oocyte development could be divided into eight stages but oogonia and perinucleolar oocytes considered as part of the initial growth phase were observed in ovaries throughout the study period. The presence of more than two developmental stages of oocytes in a single ovary throughout the study period indicated that P. hypophthalmus possesses asynchronous ovaries. Sexual maturation was recorded in 13-14 month old females when mean length was 46.99 1.04 cm and body weight had reached 989.7059.98 g. This indicates that the time required for P. hypophthalmus to attain sexual maturity is shorter in captivity than in the wild.
Download File
Full text available from:
Official URL: http://www.asianfisheriessociety.org/publication/d...
|
Abstract
Developmental changes in the ovary of Pangasianodon hypophthalmus (Sauvage 1878) (initial weight 28424.2 g; initial age 6 months) held in captivity were examined over an 8-month period. Ovarian development was assessed macroscopically and microscopically and histological analysis was used to establish the stages of oocyte development. Oocyte development could be divided into eight stages but oogonia and perinucleolar oocytes considered as part of the initial growth phase were observed in ovaries throughout the study period. The presence of more than two developmental stages of oocytes in a single ovary throughout the study period indicated that P. hypophthalmus possesses asynchronous ovaries. Sexual maturation was recorded in 13-14 month old females when mean length was 46.99 1.04 cm and body weight had reached 989.7059.98 g. This indicates that the time required for P. hypophthalmus to attain sexual maturity is shorter in captivity than in the wild.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Air drying |
| AGROVOC Term: | Maturation |
| AGROVOC Term: | Captivity |
| AGROVOC Term: | Developmental stages |
| AGROVOC Term: | Oocytes |
| AGROVOC Term: | Growth rate |
| AGROVOC Term: | Ovaries |
| AGROVOC Term: | Sexual maturity |
| AGROVOC Term: | Rearing techniques |
| AGROVOC Term: | Stocking density |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 28 Apr 2025 05:28 |
| URI: | http://webagris.upm.edu.my/id/eprint/23725 |
Actions (login required)
 |
View Item |
