The use of synthetic hormones to regulate sexual maturity in captive fish is a common practice. With aquaculture practices, fish production is desired throughout the year, necessitating the maintenance of quality standards, mainly regarding the characteristics of the fish produced.
Embryonic development may be affected by toxins in the environment and by a variety of pathologies. The aim of this study was to determine the effects of treatment with gonadotropin-releasing hormone analog (GnRHa) on captive male and female Atlantic Salmon (Salmo salar) broodstock, observing the effects on the hormonal milieu and impacts on breeding outcomes. Sexually mature fish were fertilized with and without imposing a GnRHa treatment to evaluate the development of offspring up to the fry stage.
SDZ NKT 343 |
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T23345-50mg | TargetMol Chemicals | 50mg | Ask for price |
Description: SDZ NKT 343 |
SDZ NKT 343 |
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Description: SDZ NKT 343 |
SDZ NKT 343 |
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574400 | MedKoo Biosciences | 10.0mg | EUR 430 |
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Human Fetal Liver Cells CD34+ Cells |
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Description: First, fetal liver is homogenized. Then, a density separation gradient media (1.077g/ml density) is used to isolate the Mononuclear Cells. Next, a direct immunomagnetic CD34 MicroBead labeling system is used to positively isolate FL-CD34+ cells. |
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Description: Fetal liver is homogenized, and then a density separation gradient media (1.077 g/ml density) is used to isolate the mononuclear cells. Next, a direct immunomagnetic CD133 MicroBead labeling system is used to positively select FL-CD133+ cells. The majority of CD133+ cells express the CD34 cell marker. |
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Description: Monocytes are found in the circulating peripheral blood where they make up 10-20% of the mononuclear cells. They play an important role in host defense, both as circulating monocytes and by leaving the circulation and differentiating to tissue macrophage |
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Description: Monocytes are found in the circulating peripheral blood where they make up 10-20% of the mononuclear cells. They play an important role in host defense, both as circulating monocytes and by leaving the circulation and differentiating to tissue macrophage |
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ABC-TC3112 | AcceGen | 1 vial | Ask for price |
Description: Monocytes are found in the circulating peripheral blood where they make up 10-20% of the mononuclear cells. They play an important role in host defense, both as circulating monocytes and by leaving the circulation and differentiating to tissue macrophage |
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C0016054 | Addexbio | One Frozen vial | EUR 651.6 |
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C0016080 | Addexbio | One Frozen vial | EUR 546 |
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P0011012 | Addexbio | One Frozen vial | EUR 546 |
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T8969 | ABM | 1x10^6 cells / 1.0 ml | EUR 650 |
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C0003010 | Addexbio | One Frozen vial | EUR 546 |
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C0016008 | Addexbio | One Frozen vial | EUR 651.6 |
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C0016053 | Addexbio | One Frozen vial | EUR 546 |
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P0028001 | Addexbio | One Frozen vial | EUR 546 |
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T1025 | ABM | 1x10^6 cells / 1.0 ml | EUR 450 |
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T0004005 | Addexbio | One Frozen vial | EUR 546 |
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T8099 | ABM | 1x10^6 cells/1.0ml | EUR 1350 |
Scid.adh Cells |
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TR146 Cells |
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T8207 | ABM | 1x10^6 cells / 1.0 ml | EUR 750 |
YMAC1 Cells |
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T8233 | ABM | 1x10^6 cells/1.0ml | EUR 1350 |
U251N Cells |
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T8242 | ABM | 1x10^6 cells / 1.0 ml | EUR 1350 |
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T8286 | ABM | 1x10^6 cells / 1.0 ml | EUR 1350 |
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T8294 | ABM | 1x10^6 cells/1.0ml | EUR 1350 |
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T8295 | ABM | 1x10^6 cells/1.0ml | EUR 1350 |
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T8296 | ABM | 1x10^6 cells/1.0ml | EUR 1350 |
mEERL Cells |
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T8309 | ABM | 1x10^6 cells / 1.0 ml | EUR 3950 |
The concentrations of 17β-estradiol (E2) and testosterone (T) were determined using commercially available ELISA kits. The results indicate the administration of GnRHa had marked effects on reductions of morphological deformities in the offspring and promoted development during the larval stage by inducing sexual maturity in both treated parents. The E2/T ratio results indicate the presence of endocrine disruptors.
It is concluded that the use of GnRHa at a dose of 10 ug/kg in captive male and female Atlantic salmon broodstock has an inhibitory effect on the impacts of endocrine disruptors, does not affect fertilization rate, and has positive effects on development of offspring by reducing the number of morphological deformities during the larval stage of development.