Induced spawning in perch, Perca fluviatilis L., using FSH + LH with pimozide or metoclopramide

Abstract

Induced spawning in perch, Perca fluviatilis L., was studied using follicle stimulating hormone and lutenizing hormone (FSH ϩ LH) with the addition of pimozide or metoclopramide. The doses administered to fish were: 75 IU kg -1 of FSH ϩ LH with 5 or 10 mg kg -1 of pimozide (P) or metoclopramide (M) in females, and 25 IU kg -1 of FSH ϩ LH with 2.5 or 5 mg kg -1 of P or M in males. Hormonal injections in males (except the injection of FSH ϩ LH with 10 mg kg -1 of M) did not influence the quantity of milt obtained. All females treated in this experiment had oocytes at the same stage of nucleus migration, so the time of ovulation was very synchronous, i.e. 16-24 h after injection. The relationship between the quality of the eggs, expressed as a survival to eyed-egg stage, and latency was inverse. Spawning success, expressed as a spawning effectiveness coefficient (S e ), was highest in the fish that had been treated with FSH ϩ LH with a higher dose of M.

Method of evaluation of wild common tench,Tinca tinca(L.), female suitability for artificial reproduction during the spawning season

“…However, in percids, this system was not very precise and a new system to recognize oocyte maturity stage was proposed by Żarski et al (2011 a,b). That method, however, was unreliable in batch spawners as the oocytes were of different sizes and at different stages of development (Kucharczyk et al, 1997c(Kucharczyk et al, , 2007Krejszeff et al, 2010;. Thus, in the case of batch spawners, such as tench, other methods that could be used successfully in fishery practice should be investigated.…”

“…In many cyprinids, the position of the germinal vesicle is the most important factor (e.g., Brzuska, 1979;Kucharczyk et al, 1997aKucharczyk et al, , 2005Krejszeff et al, 2009;Targońska et al, 2010). In other fish (e.g., barbel Barbus barbus, goldfish Carassius auratus, chub Leuciscus cephalus, rudd Scardinius erythrophthalmus) that, like tench, are batch spawners, the method based on germinal vesicle position in oocytes was not successful (Kucharczyk et al, 1997c;Krejszeff et al, 2010;. In multi-batch spawners, other indexes are applied, e.g., body weight index (BWI) and size or percentage of the largest oocytes (Pedersen, 2003;Kucharczyk et al, 2007).…”

The effect of geographical origin of perch (Perca fluviatilis L. 1758) populations on growth rates under natural and aquaculture conditions: a review

“…The intensive culture of Eurasian perch in RAS has many advantages, including stable conditions, ability to rear fry produced by out‐of‐season spawning, more predictable production of juveniles, and easier monitoring and control of cannibalism compared to culture in ponds and mesocosms (Kucharczyk et al., ; Kouřil and Hamácková, ; Kestemont and Baras, ; Babiak et al., ) .…”

The Application of hCG, CPH and Ovopel in Successful Artificial Reproduction of Goldfish (Carassius auratus auratus) Under Controlled Conditions

“…2010). Applying hormonal stimulation in domesticated cyprinids and in some other fish, such as perch or burbot, increases the percentage of ovulation in females, helps synchronize spawning and increases the amount of eggs produced by a female (Kucharczyk et al. 1996, 1998; Krejszeff et al.…”