Zobrazeno 1 - 10
of 123
pro vyhledávání: '"P. Szczerbik"'
Government-imposed lockdowns have challenged academic institutions to transition from traditional face-to-face education into hybrid or fully remote learning models. This transition has focused on the technological challenge of guaranteeing the conti
Externí odkaz:
http://arxiv.org/abs/2401.17701
Autor:
Łuszczek-Trojnar Ewa, Drąg-Kozak Ewa, Szczerbik Paweł, Klaczak Artur, Lelonek Anna, Duda Kinga, Adamska Patrycja
Publikováno v:
Fisheries & Aquatic Life, Vol 32, Iss 2, Pp 63-79 (2024)
The aim of this study was to compare tissue concentrations of heavy metals (copper (Cu), manganese (Mn), iron (Fe), nickel (Ni), zinc (Zn)) in roach (Rutilus rutilus (L.)), chub (Squalius cephalus (L.)), and bleak (Alburnus alburnus (L.)) from two lo
Externí odkaz:
https://doaj.org/article/7f90636e0d3a4a5d9aeaf002ddcbd9f0
Publikováno v:
Czech Journal of Animal Science, Vol 60, Iss 10, Pp 459-472 (2015)
The bioaccumulation of lead in selected tissues of Prussian carp kept in pond condition during 12 and 24 months of exposure to different doses (8, 13, 24, and 49 mg/kg) of this metal in feed and its elimination from tissues during the following 12-mo
Externí odkaz:
https://doaj.org/article/cdc13734c400447892d6b33be8291218
Publikováno v:
Acta Ichthyologica et Piscatoria, Vol 43, Iss 3, Pp 195-200 (2013)
Background. Endocrine disrupting chemicals (EDCs), among them polychlorinated biphenyls (PCBs), are able to change the hormonal regulation of reproduction at the hypothalamo-pituitary-gonadal (HPG) axis in many vertebrates. The aim of the presently r
Externí odkaz:
https://doaj.org/article/e0f750eadbf44e01865658552056b726
Publikováno v:
Czech Journal of Animal Science, Vol 58, Iss 8, Pp 375-380 (2013)
The effects of Aroclor 1254 on the secretion of luteinizing hormone (LH) and 17,20β-dihydroxy-4-pregnen-3-one (17,20β-P) in female Prussian carp (Carassius gibelio Bloch) at the time of their natural spawning were determined. Aroclor 1254 at doses
Externí odkaz:
https://doaj.org/article/c2e42bc2403d412da43b74ec5eee0294
Publikováno v:
Czech Journal of Animal Science, Vol 58, Iss 1, Pp 31-36 (2013)
Effects of salmon gonadotropin releasing hormone analogue (sGnRH-A) and antidopaminergic drug, pimozide, on the synthesis of prolactin mRNA in vivo in female Prussian carp (Carassius gibelio Bloch) during two different stages of the reproductive cycl
Externí odkaz:
https://doaj.org/article/4838d7c8ad5343a78217b414460f9b86
Publikováno v:
Acta Ichthyologica et Piscatoria, Vol 42, Iss 1, Pp 31-35 (2012)
Background. Polychlorinated biphenyls (PCBs) are persistent and bioacumulative chemical pollutants which exert negative physiological effects on the reproductive system of mature male and female fish. PCBs present in the aquatic environment may also
Externí odkaz:
https://doaj.org/article/e35adb04c5a542c9b188bfd9e0405ac4
Autor:
E. Drąg-Kozak, M. Nowak, P. Szczerbik, A. Klaczak, T. Mikołajczyk, B. Fałowska, M. Socha, W. Popek
Publikováno v:
Acta Ichthyologica et Piscatoria, Vol 41, Iss 2, Pp 123-127 (2011)
Fifteen new localities of the Ukrainian brook lamprey, Lampetra (Eudontomyzon) mariae, were found within 2008–2010. The majority of them are located in the Nida River drainage. Additionally, the occurrence of that species in the StrwiÄ…ĹĽ Rive
Externí odkaz:
https://doaj.org/article/6d216103dc294643a55a783d9a3c3aa1
Autor:
J. Chyb, T. Mikolajczyk, M. Sokolowska-Mikolajczyk, M. Socha, P. Szczerbik, D. Biedroń, M. Dębowska, M. Kasiuk, J. Madej, E. Podczerwińska, M. Adamek, P. Epler
Publikováno v:
Czech Journal of Animal Science, Vol 53, Iss 9, Pp 398-403 (2008)
The aim of this study was to evaluate the effects of recombinant human inhibin A, recombinant human activin A and desteroidized ovarian extract on LH secretion in vitro and in vivo in female common carp during different stages of reproductive cycle.
Externí odkaz:
https://doaj.org/article/e346273b3a614aa5a63060bf199ede86
Publikováno v:
Czech Journal of Animal Science, Vol 53, Iss 1, Pp 36-44 (2008)
The influence of cadmium (Cd) on the last stage of Prussian carp (Carassius auratus gibelio B.) oocyte maturation and embryonic development was investigated. The (postvitellogenic) oocytes were incubated with carp pituitary homogenate (Chh), 17α,20
Externí odkaz:
https://doaj.org/article/cf64504468514e7188683b43f8b9f767