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Now showing items 11-20 of 22
Induced gonadal maturation and rematuration in milkfish: Limited success with chronic administration of testosterone and gonadotropin-releasing hormone analogues (GnRH-A)
(Elsevier, 1988)
Nine experiments were conducted to investigate the influence of chronic administration of testosterone (T) and gonadotropin-releasing hormone (GnRH) analogues on first maturation of 4- to 6-year-old fish and rematuration ...
Reproductive quality of male Penaeus monodon
(Elsevier, 1993)
The reproductive performance of unilaterally eyestalk-ablated wild male Penaeus monodon was compared with that of unablated prawns (controls). After being stocked for 6 weeks in flow-through tanks, ablated males showed ...
Milt production of sea bass Lates calcarifer Bloch administered an analogue of luteinizing hormone-releasing hormone and 17α-methyltestosterone
(Society of Israeli Aquaculture and Marine Biotechnology, 2002)
The milt production responses of sexually mature sea bass Lates calcarifer to (D-Ala<sup>6</sup>, Pro<sup>9</sup>-N- ethylamide) luteinizing hormone-releasing hormone (LHRHa) and 17α-methyltestosterone injections were ...
The effect of micro algal diet and rearing condition on gonad maturity, fecundity and embryonic development of the window-pane shell, Placuna placenta Linnaeus.
(Elsevier, 2002)
Immature <i>Placuna placenta</i> (Linnaeus) broodstock were given the micro algae <i>Isochrysis galbana</i> (T-ISO) Parke and <i>Tetraselmis tetrahele</i> (G.S. West) at different combinations and density levels and reared ...
Growth and reproductive performance of the Asian catfish Clarias macrocephalus (Gunther) fed artificial diets
(Blackwell Publishing, 1997)
Four natural ingredient diets similar in nutrient composition (crude protein = 42–44%; P/E ratio = 115–120 mg/kcal) but different in protein sources, were formulated and fed to hatchery-reared catfish to measure the relative ...
Effect of growth hormone and γ-aminobutyric acid on Brachionus plicatilis (Rotifera) reproduction at low food or high ammonia levels
(Elsevier, 1999)
Growth hormone (GH, 0.0025 and 0.025 I.U. ml<sup>−1</sup>) and γ-aminobutyric acid (GABA, 50 μg ml<sup>−1</sup>) enhance rotifer population growth in batch cultures. In order to further understand the mechanism of their ...
Profiles of progesterone- and estradiol-like substances in the hemolymph of female Pandalus kessleri during an annual reproductive cycle
(Elsevier, 1991)
The changes in GSI and HSI of Pandalus kessleri were monitored during an annual reproductive cycle. GSI reached a peak when ovaries were composed of yolky oocytes and decreased sharply during the spawning season. HSI ...
Effect of juvenile hormone and serotonin (5-HT) on mixis induction of the rotifer Brachionus plicatilis Muller
(Elsevier, 2000)
Juvenile hormone (JH) and serotonin (5-HT) were previously shown to enhance mictic (sexual) female production of the rotifer Brachionus plicatilis in batch cultures. To explore the basis of these effects, experiments were ...
Effect of dietary astaxanthin and vitamin A on the reproductive performance of Penaeus monodon broodstock
(Cambridge University Press, 1998)
The reproductive performance of pond tiger shrimp given astaxanthin (100 mg·kg<sup>−1</sup>) and/or vitamin A (20 000 IU·kg<sup>−1</sup>) for 61 d in tanks was assessed in a 2 × 2 factorial experiment in a completely ...
Reproductive performance of four red tilapia strains in different seed production systems
(Society of Israeli Aquaculture and Marine Biotechnology, 1996)
The reproductive efficiency of one Thai red tilapia strain (NIFI) and three genetically diverse Philippine red tilapia strains (BFS, FAC, and PF) were compared. Breeders from each strain were stocked separately in land-based ...