Spermiation response of mature rabbitfish, Siganus guttatus Bloch, to luteinizing hormone-releasing hormone analogue (LHRHa) injection
![Thumbnail](https://repository.seafdec.org.ph/bitstream/10862/1341/4/1341-GarciaLMB1991.pdf.jpg)
ຄົ້ນຫາ / ເປີດ
Request this documentວັນທີ
1991ຜູ້ຂຽນ
Page views
173Metadata
ເບິ່ງບັນທຶກລາຍລະອຽດລາຍການCited times in Scopus
Share
ບົດຄັດຫຍໍ້
A method to quantify the spermiation response of mature rabbitfish to hormonal therapy is described. Spermatocrit or packed sperm volume was measured after milt loaded in non-heparinized microhematocrit capillary tubes was centrifuged for 45 min at 15 000 × g. Sperm density was estimated by a standard hemacytometer method. However, sperm density can be predicted from spermatocrit since their relationship is highly and positively correlated (Y = 29.5 + 2.95 Xr = 0.83; P < 0.01). Milt production by mature rabbitfish was highest (4.9 ml per kg body weight) at 24 h after injection of 20 μg of luteinizing hormone-releasing hormone analogue (D-Ala6, Pro9-LHRH-ethylamide) per kg body weight and coincided with low spermatocrit (68%) and sperm density (14.1 × 106 spermatozoa per μl milt) levels. These results demonstrate that spermiation in mature rabbitfish can be reliably assessed by a spermatocrit method and that LHRHa can effectively stimulate spermiation in this species.
Suggested Citation
Garcia, L. M. (1991). Spermiation response of mature rabbitfish, Siganus guttatus Bloch, to luteinizing hormone-releasing hormone analogue (LHRHa) injection. Aquaculture , 97(2-3), 291-299. https://doi.org/10.1016/0044-8486(91)90271-8
ວິຊາ
Collections
- AQD Journal Articles [1222]
Related items
Showing items related by title, author, creator and subject.
-
Dietary administration of dehydroepiandrosterone hormone influences sex differentiation of hybrid red tilapia (O. niloticus x O. mossambicus) larvae
Mohamed, Asaad H.; Traifalgar, Rex Ferdinand M.; Serrano, Augusto E., Jr.; Peralta, Jose P.; Pedroso, Fiona L. (Academic Journals, New York, 2012)Effects of a steroid hormone Dehydroepiandrosterone (DHEA) on sex differentiation of hybrid red Tilapia Oreochromis niloticus x O. mossambicus larvae were investigated. Three day-old tilapia larvae were fed diets supplemented ... -
SEAFDEC/AQD's induced maturation and breeding protocols
Dagoon, N. J. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2000) -
SEAFDEC/AQD's catfish hatchery specialist at work
Dagoon, N. J. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2000)