Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Rechulicz J. 2001. INCUBATION TEMPERATURE EFFECTS ON THE DEVELOPMENT OF HATCHING GLAND CELLS IN IDE, Leuciscus idus (L.), EJPAU 4/issue2/volume4(2), #03.
Available Online: http://www.ejpau.media.pl/volume4/issue2/volume4/issue2/fisheries/abs-03.html

ABSTRACT

The ide eggs were incubated in the laboratory in three temperature ranges: 11–13, 15–16, and 18–20°C. Throughout the entire period of incubation, the live eggs were observed and samples were collected for histological assays. Microscopic slides were made to record the timing of appearance of hatching gland cells. The distribution, number, and size of the hatching gland cells, relative to incubation temperature, were determined. The cells appeared at the earliest (after 75 h of incubation) in the eggs incubated at 18–20°C and took the longest to appear (145 h) in those eggs incubated at the lowest temperature. The hatching gland cells were observed to be present only in the anterior part of the ide embryo and were lacking in the caudal part. Depending on the temperature, an embryo showed the presence of 200 to 390 hatching gland cells. The largest cells, having 29.30 µm mean length, 24.54 µm mean height, and 9694.58 µm³ mean volume, were typical of those embryos

Key words: ide, egg incubation, hatching gland cells (HGCs).

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