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Jakość pasz dla zwierząt laboratoryjnych jako czynnik otrzymanych wyników badań

s. 67-72

Lidia Radko, Sylwia Stypuła-Trębas, Andrzej Posyniak

Zakład Farmakologii i Toksykologii, Państwowy Instytut Weterynaryjny-Państwowy Instytut Badawczy

Streszczenie. Zachowanie odpowiednich warunków hodowlanych stanowi podstawowy element warunkujący uzyskanie istotnych wyników badań. Żywienie jest jednym z czynników środowiskowych wpływających nie tylko na wyniki hodowlane i zdrowotne zwierząt laboratoryjnych, ale także na ich jakość jako modelu, a w konsekwencji na wyniki prowadzonych badań. Prawidłowe żywienie polega na zaspokajaniu potrzeb pokarmowych w sposób pozwalający na przebieg procesów fizjologicznych na stałym poziomie oraz nie powoduje wystąpienia zmian patologicznych w czasie hodowli oraz eksperymentu. W ostatnich latach hodowcy zwierząt laboratoryjnych zauważyli wzrost występowania nowotworów u szczurów oraz zaburzeń w rozrodzie zwierząt. Szczególną uwagę zwrócili na jakość dostarczanych pasz laboratoryjnych, w tym na obecność zanieczyszczeń chemicznych. Przeprowadzone badania wykazały obecność: pestycydów ( glifosat, pirimifos), metali ciężkich ( ołowiu i kadmu) oraz dioksyn i mikotoksyn ( eniatyn, zeralenonu, deoksyniwalenolu, fumonizyn, aflatoksyny). Stwierdzane stężenia ww. zanieczyszczeń były niskie w stosunku do określonych pozostałości dla zwierząt gospodarskich. Jednakże, przewlekłe narażenie zwierząt laboratoryjnych na niskie stężenia mieszaniny stwierdzanych zanieczyszczeń, prowadzi do pogorszenia wyników hodowli i w związku z tym uzyskiwania fałszywych wyników badań, zwiększenia liczby wykorzystanych zwierząt w doświadczeniach oraz większej trudności w ekstrapolacji wyników na człowieka. Dlatego zastosowanie urzędowej kontroli jakości pasz dla zwierząt laboratoryjnych, która nie jest prowadzona, poprawi jakość (powtarzalność i odtwarzalność) uzyskiwanych wyników doświadczeń na zwierzętach laboratoryjnych. 

Słowa kluczowe: zwierzęta laboratoryjne, pasze, zanieczyszczenie, eksperyment


The quality of laboratory rodent feed as a factor of the obtained test results

Lidia Radko, Sylwia Stypuła-Trębas, Andrzej Posyniak

Department of Pharmacology and Toxicology,

National Veterinary Research Institute, 24-100 Pulawy, Poland


Summary. The maintaining appropriate breeding conditions is a basic element providing the achievement of reliable research results. The nutrition is one of the environmental factors affecting not only the breeding and health results of laboratory animals, but also their quality as a model and, consequently, the results of experiment. The proper nutrition consists in satisfying nutritional needs in a way that allows physiological processes to run at a constant level and does not cause pathological changes during breeding and experiment. In recent years, laboratory animal breeders have noticed an increase in the incidence of spontaneous tumors in rats and disturbances in the reproduction of this animals. The particular attention was paid to the quality of laboratory feeds, including the presence of chemical contaminants. The research carried out showed the presence of pesticides (including glyphosate, pirimiphos), heavy metals (lead and cadmium) as well as dioxins and mycotoxins (eniatins, zeralenone, deoxynivalenol, fumonisins, aflatoxins).The established concentrations of the above impurities were low in relation to certain residues for livestock. However, chronic exposure of laboratory animals to low levels of the mixture of contaminations leads to deterioration of breeding results and, consequently, obtaining false test results, increasing the number of animals used in experiments and greater difficulty in extrapolating outcomes to humans. Therefore, the use of official quality control of laboratory feeds that is not carried out will improve the quality (repeatability and reproducibility) of the results obtained in experiments on laboratory animals.

Key words: laboratory animals, feed, contaminations, experiment


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