Zum Energie- und Proteinbedarf von Rehwild

Oslage, Hans Joachim; Strothmann, Anke

doi:10.1007/bf02242425

Cited by 4 publications

(6 citation statements)

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“…These are between 3.3 MJ/roe deer.day in winter and 5.7 MJ/roe deer.day in summer (Dro_ zd_ z and Osiecki 1973;Ellenberg 1975;Weiner 1977;Perzanowski 1978;Hartfiel et al 1985). Oslage and Strothmann (1988) found an annual average energy requirement of~8 MJ ME/roe deer. day for roe deer in enclosures and peak values in June of 10 MJ ME/roe deer.day, which is in line with our estimate of the lowest ME concentration (1/3 non-digested material).…”

Section: Discussionmentioning

confidence: 98%

“…Roe deer kept in enclosures had an annual median intake of~8 MJ ME/roe deer. day, with the highest value in June of 10 MJ ME/roe deer.day (Oslage and Strothmann 1988). These values can be seen as the lower-limit value for energy intake, as animals kept in enclosures have less need for movement.…”

Section: Introductionmentioning

confidence: 97%

“…In their case, activities such as the search for mates and migration between seasonal habitats or in search of a food supply with a higher energy content are unnecessary (Aulak and Babinska-Werka 1990;Bideau et al 1993;Mancinelli et al 2015). The maximum energy requirement of 17 MJ ME/day assumed by Onderscheka (1999) or Bauer (2007) seems realistic, given the results based on animals kept in enclosures (Oslage and Strothmann 1988).…”

Section: Introductionmentioning

confidence: 99%

“…A series of studies on this have been conducted with roe deer living in enclosures or kept in respirometric chambers (Weiner 1977). The maintenance requirement (fasting metabolic rate, FMR) for roe deer is between~3.3 MJ/roe deer.day and 5.1 MJ/roe deer.day, depending on the season (Dro_ zd_ z and Osiecki 1973;Weiner 1977;Perzanowski 1978;Hartfiel et al 1985;Oslage and Strothmann 1988;Mauget et al 1997). This requirement increases with movement and stress by as much as 200-300% (Weiner 1977).…”

Section: Introductionmentioning

confidence: 99%

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Response of roe deer (Capreolus capreolus) to seasonal and local changes in dietary energy content and quality

et al. 2020

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Context In terms of their nutritional physiology, roe deer have been called ‘concentrate selectors’. This implies that they select proteins in their diet and are not able to digest fibre. It is, thus, suggested that in an agricultural landscape, they are unable to digest the high fibre content of arable crops and, thus, suffer and need to be given supplementary feed. Aims Our aim was to determine the nutrient composition and energy content of the roe deer diet in an agricultural habitat compared with that in a natural forest habitat. Methods Rumen contents of 245 roe deer were collected to represent each month of the year for 3 years, weighed, and analysed by standard methods for nutrient and fibre content. Key results Roe deer in the agricultural habitat had rumen contents with significantly higher metabolisable energy (ME) concentrations, with a median of 6.2 MJ ME/kg DM, than did roe deer in the forest habitat, where the median was 5.4 MJ ME/kg DM. The mass of rumen contents in the forest habitat was, on average, 240 g higher than that in the agricultural habitat. Roe deer in the forest habitat compensate for the lower energy concentration in their natural diet by increasing their food intake. The concentration in the agricultural habitat is a result of the higher proportion of easily digestible carbohydrates in the diet. The concentration of crude protein in the rumen contents did not differ statistically between the two areas. In both habitats, the mean crude fibre concentration varied between 24% DM and 34% DM, and was significantly higher in the forest. The concentration of crude fibre selected by the roe deer is similar to the concentration of crude fibre known to be selected by red deer and fallow deer (intermediate feeders) and mouflon (a grazer) (Hofmann 1989). Conclusions The term ‘concentrate selector’ should be replaced by ‘selector’ to avoid misinterpretations. Energy shortfalls were not observed in either of the populations during the study period. Implications Supplemental feeding was not necessary to maintain the population.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Response of roe deer (Capreolus capreolus) to seasonal and local changes in dietary energy content and quality

et al. 2020

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“…In males, high energy requirements in May are a result of the growth of antlers in their velvet stage (Oslage & Strothmann 1988), spermatogenesis (Blottner et al 2006;Klonisch et al 2006) and storage of energy to prepare for the rut in early August (Molinari-Jobin et al 2004).…”

Section: Seasonal Changes Of Activity In Relation To Reproduction Andmentioning

confidence: 99%

Long-term measurement of roe deer (Capreolus capreolus) (Mammalia: Cervidae) activity using two-axis accelerometers in GPS-collars

Krop-Benesch

Berger

Hofer

et al. 2013

Italian Journal of Zoology

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The investigation of activity patterns provides crucial information on the ecology of a species, yet there are very few long-term data available from free-ranging species. Here, we present the first continuous activity data of free-ranging roe deer covering an entire calendar year. Six male and five female roe deer in the National Park Bavarian Forest, Germany, were equipped with GPS collars containing a two-axis accelerometer. Activity data were analysed for daily activity patterns and their seasonal changes. Daily activity patterns resembled the patterns described in earlier VHF-telemetry based studies, but instead of a pure active/inactive discrimination, the level of activity was obtained continuously, allowing a more precise study of activity intensity. Activity was observed at all daytimes, but was most intense at twilight. These twilight peaks were less pronounced in winter. The intensity of activity showed stronger seasonal changes than the number and duration of activity bouts. Mean daily activity levels and the number of activity peaks per day were lower in winter than in spring and summer. Mean duration of activity peaks did not change during the year. At all seasons, activity had a significant 24-hour periodicity, but the time of its emphasis changed. The roe deer was most diurnal during winter, and most nocturnal in autumn. In spring and summer, activity was evenly distributed between day and night. Seasonal changes in activity could be explained by seasonal changes in physiological parameters and in environmental changes, especially food supply and climate.

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Seasonal variations in total and alimentary nutrient concentrations and pools in European roe deer (Capreolus capreolus)

Holand¹

1994

Comparative Biochemistry and Physiology Part A: Physiology

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Zum Energie- und Proteinbedarf von Rehwild

Cited by 4 publications

References 7 publications

Response of roe deer (Capreolus capreolus) to seasonal and local changes in dietary energy content and quality

Response of roe deer (Capreolus capreolus) to seasonal and local changes in dietary energy content and quality

Long-term measurement of roe deer (Capreolus capreolus) (Mammalia: Cervidae) activity using two-axis accelerometers in GPS-collars

Seasonal variations in total and alimentary nutrient concentrations and pools in European roe deer (Capreolus capreolus)

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