ArticleJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2011
Effects of season and reproductive state on lipid intake and fatty acid composition of gastrointestinal tract contents in the European hare.
Article in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed, 17 citations in OpenAlex.
- Stable Isotope Analysis Reveals Habitat-Driven Dietary Niches ofAnimals : an open access journal from MDPI · 2025Article
- Causes of admission and outcomes of brown hare (Lepus europaeus) leverets at wildlife rescue centres in the Czech Republic.BMC veterinary research · 2022Article
- Article
- Gut microbiota of the European Brown Hare (Lepus europaeus).Scientific reports · 2019Article
- Seasonal reproductive tactics: annual timing and the capital-to-income breeder continuum.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017Review
- Activity of Selected Antioxidant Enzymes, Selenium Content and Fatty Acid Composition in the Liver of the Brown Hare (Lepus europaeus L.) in Relation to the Season of the Year.Biological trace element research · 2015Article
- The European Hare (Lepus europaeus): A Picky Herbivore Searching for Plant Parts Rich in Fat.PloS one · 2015Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We investigated lipid content and fatty acid (FA) composition of gastrointestinal tract contents in free-living, herbivorous European hares (Lepus europaeus). Mean crude fat content in hare stomachs and total gastrointestinal (GI) tracts was higher than expected for typical herbivore forages and peaked in late fall when hares massively deposited body fat reserves. Changes of FA proportions in different parts of the GI-tract indicated a highly preferential absorption of polyunsaturated fatty acids (PUFA). A further reduction of PUFA content in the caecum, along with the appearance of odd-chained FAs in caecum, caecotrophes, and colon content, pointed to a biohydrogenation of PUFA in the hare's hindgut. GI-tract contents showed significant seasonal changes in their FA composition. Among PUFA, α-linolenic acid peaked in spring while linoleic acid was predominant in late summer and fall, which probably reflected changes in the plant composition of forage. However, independent of seasonal changes, GI-tracts of lactating females showed a significantly (+33%) higher content of linoleic acid, a FA that is known to increase reproductive performance in European hares. This finding suggests that lactating females actively selected dietary plants rich in linoleic acid, a PUFA that may represent a limited resource for European hares.
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Registered trials
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