Effekter av plantevernmidler og gjødsel brukt i økologisk og konvensjonelt produksjonssystem på fôringskomposisjon og fysiologiske parametre hos rotter

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Vi vet lite om effektene av økologisk og konvensjonell diet hos dyrenes fysiologi og helse. I denne studien rapporteres effektene av praksiser innen plantevernmidler og gjødsel på fôringskomposisjon, vekst og fysiologiske parametre hos rotter.

Forfattere:

Dominika Średnicka-Tober, Marcin Barański, Joanna Gromadzka-Ostrowska, Krystyna Skwarło-Sońta, Ewa Rembiałkowska, Jana Hajslova, Vera Schulzova, Ismail Çakmak, Levent Öztürk, Tomasz Królikowski, Katarzyna Wiśniewska, Ewelina Hallmann, Elżbieta Baca, Mick Eyre, Håvard Steinshamn, Teresa Jordon, and Carlo Leifert ⊥

Publiseringssted:

J. Agric. Food Chem., 2013, 61 (5), pp 1017–1029

Årstall:

2013

Effect of Crop Protection and Fertilization Regimes Used in Organic and Conventional Production Systems on Feed Composition and Physiological Parameters in Rats

 

Bakgrunn

Very little is known about the effects of an organic or conventional diet on animal physiology and health.

 

Mål

Here, we report the effect of contrasting crop protection (with or without chemosynthetic pesticides) and fertilization (manure or mineral fertilizers) regimes on feed composition and growth and the physiological parameters of rats.

 

Funn

The use of manure instead of mineral fertilizers in feed production resulted in lower concentrations of protein (18.8 vs 20.6%) and cadmium (3.33 vs 4.92 μg/100g) but higher concentrations of polyphenols (1.46 vs 0.89 g/100g) in feeds and higher body protein (22.0 vs 21.5%), body ash (3.59 vs 3.51%), white blood cell count (10.86 vs 8.19 × 103/mm3), plasma glucose (7.23 vs 6.22 mmol/L), leptin (3.56 vs 2.78 ng/mL), insulin-like growth factor 1 (1.87 vs 1.28 μg/mL), corticosterone (247 vs 209 ng/mL), and spontaneous lymphocyte proliferation (11.14 vs 5.03 × 103 cpm) but lower plasma testosterone (1.07 vs 1.97 ng/mL) and mitogen stimulated proliferation of lymphocytes (182 vs 278 × 103 cpm) in rats.

 

Konklusjon

There were no main effects of crop protection, but a range of significant interactions between fertilization and crop protection occurred.

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