Joint action of carp (Cyprinus carpio L.) pituitary homogenate and human chorionic gonadotropin (HCG) in carp oocyte maturation and ovulation: In vitro and in vivo studies

Epler, P.; Sokołowska, M.; Popek, W.; Bieniarz, K.

doi:10.1016/0044-8486(86)90134-1

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…In our study, the holding conditions for fish were similar and thus the differences between treatments may be associated with the dose of administrated hormone. However, in some studies, the action of Pt in lower levels of hypothalamic-pituitary-gonadal axis (HPG) than gonadotropin releasing hormone (GnRH) was stated as reason for shorter latency period obtained by Pt (Epler, 1986). Spawning rate is one of the good indices for evaluation of hormonal effects on ovulation (Szabo et al, 2002).…”

Section: Resultsmentioning

confidence: 99%

Effect of pituitary extract, ovaprim and combination of human chorionic gonadotropin and metoclopramide on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772)

Nosrati¹,

Khara²,

Vahabzadeh³

et al. 2019

Indian J. Fish.

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The present study was conducted to examine the effects of three different hormonal treatment types i.e., pituitary extract (Pt), ovaprim (Ov) and human chorionic gonadotropin (HCG) + Metoclopramide (Met) on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772). To this end, three experimental treatments and one control group were considered. The experimental groups were administrated with different doses of Pt, Ov, HCG + Met as follows: Pt [2 mg kg bw (body weight)-1], Pt (3 mg kg bw -1), Pt (4 mg kg bw -1), Ov (10 μg kg bw -1), Ov (20 μg kg bw -1), Ov (30 μg kg bw -1), HCG + Met (1000 IU kg bw -1), HCG + Met (2000 IU kg bw -1), HCG + Met (3000 IU kg bw-1) and also a control group without any hormonal treatment. The highest values of oocyte weight and egg diameter were observed in groups administrated with Ov (10 μg kg bw-1) and HCG + Met (2000 IU kg bw-1) respectively. The highest values of absolute fecundity and relative fecundity were recorded for fish administrated with Ov (20 μg kg bw-1). The latency period and hour-degree for final maturation were lower in fish administrated with Ov (10 μg kg bw-1) compared to other experimental groups (p<0.05). There were no significant differences between experimental groups in terms of other assayed parameters. The results of the present study demonstrated higher efficiency of ovaprim in improving the reproductive performance of Caspian shemaya.

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Section: Resultsmentioning

confidence: 99%

Effect of pituitary extract, ovaprim and combination of human chorionic gonadotropin and metoclopramide on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772)

Nosrati¹,

Khara²,

Vahabzadeh³

et al. 2019

Indian J. Fish.

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“…The ovulation rate after treatment with HCG was lower than that obtained with LHRHa and CPE (Table 2). Although HCG has been used effectively to induce maturation and ovulation of some fish species (catfish Iclalulus punctatus : Waynarovich & Horvath 1980; Indian major carps Catla catla, Labeo rohita and Cirrhinus mrigal : Chondar 1984), it has also been found to be less effective if given alone (Epler et al . 1986).…”

Section: Discussionmentioning

confidence: 99%

“…Tan‐Fermin, Pagador and Chavez (1997) reported that catfish Clarias macrocephalus failed to ovulate after treatment with LHRHa, but exhibited a high ovulation rate when injected simultaneously with LHRHa and pimozide. Similarly, HCG injection induced ovulation in catfish Heterobranchus longifilis (Lam 1982; Legendre 1986), but failed to induce spawning in common carp Cyprinus carpio when administered alone (Epler, Sokolowska, Popek & Bieniarz 1986).…”

Section: Introductionmentioning

confidence: 99%

Controlled reproduction of an important indigenous fish species, Spinibarbus denticulatus (Oshima, 1926), in Southeast Asia

Trung

Bart

2007

Aquaculture Res

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Aquaculture of Spinibarbus denticulatus (Oshima, 1926), a ¢sh species indigenous to North Vietnam and Eastern China, is constrained by lack of ¢ngerlings for stocking ponds and cages. As these ¢sh do not naturally breed in captivity, carp pituitary extract (CPE), luteinizing hormone-releasing hormone analogue (LHRHa) with domperidone (DOM) and human chorionic gonadotropin (HCG) were administered at various doses to induce ovulation. A ¢rst set of experiments evaluated the response to LHRHa (30, 40 and 50 mg kg À1 ) with or without DOM (10 mg kg À1 ), CPE (20, 30 and 40 mg kg À1 ) and HCG (3000, 4000 and 5000 IU kg À1 ). A second set of experiments evaluated the dose response to LHRHa (30, 35, 40 and 50 mg kg À1 ) primed with 6 mg kg À1 of CPE, and HCG (3000, 3500, 4000, 5000 IU kg À1 ) primed with 6 mg kg À1 of CPE. The treatment groups were compared with each other and the control (injected with 0.9% saline solution). Only 25% and 50% ovulation resulted when treated with LHRHa at 40 and 50 mg kg À1 , whereas 100% ovulation was achieved with an addition of DOM to LHRHa. Both 30 and 40 mg kg À1 CPE induced 100% ovulation. However, HCG (4000 and 5000 IU kg À1 ) induced ovulation in only 33% of females.When primed with CPE, the minimum dose of LHRHa required was 35 mg kg À1 to achieve 70% ovulation. Priming HCG with CPE also resulted in 100% ovulation, and the minimum e¡ective dose of HCG to induce ovulation was 3500 IU kg À1 with 60% ovulation. Fertilization and hatch rates observed in this study with di¡erent hormonal stimulation were high (80^93%). The results indicate that while the use of combined hormone strategy has no apparent advantage over a single hormone strategy, LHRHa1DOM (40 mg kg À1 110.0 mg kg À1 ) and CPE (30 mg kg À1 ) are most e¡ective in consistently inducing ovulation and thus can be used for commercial hatchery production of S. denticulatus larvae.

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Effects of hormonal treatments on induced ovulation in gudgeon, Gobio gobio L.

Kestemont

1988

Aquaculture

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Joint action of carp (Cyprinus carpio L.) pituitary homogenate and human chorionic gonadotropin (HCG) in carp oocyte maturation and ovulation: In vitro and in vivo studies

Cited by 4 publications

References 12 publications

Effect of pituitary extract, ovaprim and combination of human chorionic gonadotropin and metoclopramide on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772)

Effect of pituitary extract, ovaprim and combination of human chorionic gonadotropin and metoclopramide on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772)

Controlled reproduction of an important indigenous fish species, Spinibarbus denticulatus (Oshima, 1926), in Southeast Asia

Effects of hormonal treatments on induced ovulation in gudgeon, Gobio gobio L.

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