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Diet optimalisation of selected species of lemurs
ŽAHOUROVÁ, Petra
Ring-tailed lemur Lemur catta, red ruffed lemur Varecia rubra and black and white ruffed lemur Varecia variegata belongs to the family Lemuridae, living at Madagaskar as endemits. In wildlife is folivorous and frugivorous food strategy at the both genus ? in the process g. Varecia is more frugivorous. Study was divided into two parts ? the first about ration of feeding chosen species of lemurs in several czech zoos and the second about ethology feeding behaviour lemurs in zoo Jihlava. For nutritional assessment were further chosen zoos Lešná, Jihlava, Ústí nad Labem, Ohrada and Chleby. From ration of feeding for chosen species of lemurs was counted average personal ration per day. This average was used to calculate nutritional values of dietary (fats, protein, carbohydrates, fiber, calcium, phosporus and iron) for each kind of menu or particularly day a week. For ethologic observation was made method of straight observation with used behaviour sampling ? scanning of a behaviour. Observation was done from July to December 2011 in whole extent 56 hours. Study solved out that ration of feeding are very different in each zoo like nutritional values of dietary and amount. In each zoo has larger ration of feeding Varecia rubra than Lemur catta. In average this diference beetwen that makes 144,25 g. Observation (zoo Jihlava) showed that Lemur catta spends foraging behaviour 19,75 minutes per day and handling 42,75 minutes per day in average. All in all they spending their feeding behavior only 62,5 minutes (1,04 hours) per day. Further more was discovered diference in length feeding behaviour when in their habitation more tree branches were. Adding branches to there increased length of feeding behaviour about of 22,67 minutes per day.
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The ethological study in a selected lemur species
ŽAHOUROVÁ, Petra
Ring-tailed lemur (Lemur catta) lives in the south and southwest of Madagascar. It is species of an half-ape which is frugivorous and folivorous. They make up multi-male and multi-female social group where dominate females above males. The work have taken place in Zoo Jihlava since May to November 2009. Observation have been always three hours morning and three hours afternoon in random choice days independently on weather and only in interior lemur-run. It was used the method of the direct observation. Observation was focused on mutual expulsion of individuals and on displays which have connection with expulsion like submissive vocalism and falling back. It was observed some grooming, contact, game and food in-take. The main aim of this work was number evaluation of expulsion and evaluate the influence of expulsion on the time spending by food in-take, contact, grooming and game. By the observation was found that in the Zoo Jihlava expulsion individuals spend about 1,88 pc time of in-take, about 3,5 pc time of contact, about 3,09 pc of grooming less but then about 0,24 pc of game more. Two years old female called Matylda separated the others at full fart and the most expulsion individual was twelve years old male called Pepa.
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