<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The effect of three forms of active species protection in the Roman snail were studied. On the “source plot” the natural population was supported by introducing hatchlings of farmed Roman snails aged 1+, bred from adult specimens of this population. These hatchlings (age 1+) from “source plot” population were also introduced to the following two natural plots: to the “empty plot”, where the population was formed by introduction of farmed Roman snails in the second year of life (1+) into a selected area which had been emptied of the natural population; to the “inhabited plot”, where farmed Roman snails aged 1+, originating from breeding snails of the foreign population from a “source plot”, were introduced to the local natural population. It was established that introducing Roman snails aged 1+ and bred under farm conditions has a clearly positive influence on the age structure of the natural population in the studied plots. The rate of growth of these snails adjusted to the rate of growth of the specimens in the same age group belonging to the natural population. The farmed Roman snails grew most rapidly in the “empty plot” sown with fodder vegetation, more slowly in the “source plot” with access to appropriate herbaceous vegetation, and most slowly in the “inhabited plot”. The attempt to create a naturalized population in a specially adapted “empty plot” without the natural population was successful. This was determined not only by a large number of hiding places from calcareous stones available to the Roman snails but above all by the species structure of the herb flora, which met their nutritional requirements as it contained high proportions of plants such as Brassica rapa × Brassica rapa subsp. chinensis, white clover (Trifolium repens), red clover (Trifolium pratense) and the hybrid of lucerne (Medicago × varia Martyn)</p></abstract>

The effect of three forms of active species protection in the Roman snail were studied. On the “source plot” the natural population was supported by introducing hatchlings of farmed Roman snails aged 1+, bred from adult specimens of this population. These hatchlings (age 1+) from “source plot” population were also introduced to the following two natural plots: to the “empty plot”, where the population was formed by introduction of farmed Roman snails in the second year of life (1+) into a selected area which had been emptied of the natural population; to the “inhabited plot”, where farmed Roman snails aged 1+, originating from breeding snails of the foreign population from a “source plot”, were introduced to the local natural population. It was established that introducing Roman snails aged 1+ and bred under farm conditions has a clearly positive influence on the age structure of the natural population in the studied plots. The rate of growth of these snails adjusted to the rate of growth of the specimens in the same age group belonging to the natural population. The farmed Roman snails grew most rapidly in the “empty plot” sown with fodder vegetation, more slowly in the “source plot” with access to appropriate herbaceous vegetation, and most slowly in the “inhabited plot”. The attempt to create a naturalized population in a specially adapted “empty plot” without the natural population was successful. This was determined not only by a large number of hiding places from calcareous stones available to the Roman snails but above all by the species structure of the herb flora, which met their nutritional requirements as it contained high proportions of plants such as Brassica rapa × Brassica rapa subsp. chinensis, white clover (Trifolium repens), red clover (Trifolium pratense) and the hybrid of lucerne (Medicago × varia Martyn)

Results of Research on the Active Species Protection of the Roman Snail (Helix Pomatia, Linnaeus, 1758) Using Farmed Snails in the Second Year of Life. First Season of the Study

Department of Technology, Ecology and Economics of Animal Production, National Research Institute of Animal Production, 32-083 Balice n. Kraków, Poland

Department of Refrigeration and Food Concentrates, Agricultural University of Krakow, Balicka 122, 10-149 Kraków, Poland

Annals of Animal Science

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

The effect of three forms of active species protection in the Roman snail were studied. On the “source plot” the natural population was supported by...

Results of Research on the Active Species Protection of the Roman Snail (Helix Pomatia, Linnaeus, 1758) Using Farmed Snails in the Second Year of Life. First Season of the Study

Online veröffentlicht: 25. Apr. 2014

Seitenbereich: 377 - 389

Eingereicht: 28. Jan. 2013

Akzeptiert: 03. Sept. 2013

DOI: https://doi.org/10.2478/aoas-2013-0068

Schlüsselwörter
Roman snail, Helix pomatia, active protection, farmed population, natural population

© by Maciej Ligaszewski

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Results of Research on the Active Species Protection of the Roman Snail (Helix Pomatia, Linnaeus, 1758) Using Farmed Snails in the Second Year of Life. First Season of the Study

Online veröffentlicht: 25. Apr. 2014

Seitenbereich: 377 - 389

Eingereicht: 28. Jan. 2013

Akzeptiert: 03. Sept. 2013

DOI: https://doi.org/10.2478/aoas-2013-0068

SchlüsselwörterRoman snail, Helix pomatia, active protection, farmed population, natural population

© by Maciej Ligaszewski

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Schlüsselwörter
Roman snail, Helix pomatia, active protection, farmed population, natural population