Effect of time after hormonal stimulation on semen quality indicators of common carp, Cyprinus carpio (Actinopterygii: Cypriniformes: Cyprinidae)
2011
Cejko, B.I. | Kowalski, R.K. | Kucharczyk, D. | Zarski, D. | Targonska K. | Glogowski, J.,Polish Academy of Sciences, Olsztyn (Poland). Inst. of Animal Reproduction and Food Research
Obtaining the appropriate quantity of milt and spermatozoa of biologically good quality depends on a number of environmental factors. Additional factors may be involved while using a hormonal stimulation. The effect of time, after stimulation with Ovopel [(D-Ala6, Pro9-NEt)-mGnRH-metoclopramide] (1 granule/kg body weight) on semen quality indicators of common carp, Cyprinus carpio L., over the period of 72 h post injection was studied. The total volume of milt, volume of milt per 1 kg of the male body weight, total sperm production and their concentration in milt, and the motility of spermatozoa by means of the subjective method and the osmotic pressure of seminal plasma were determined. The milt was collected 24 h (group I, n = 10), 48 h (group II, n = 10), and 72 h (group III, n = 10) after stimulation with Ovopel. No significant differences in the main parameters of milt i.e., the motility and concentration of spermatozoa in the milt, as well as in the osmotic pressure of seminal plasma were found between the experimental groups of the fish
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