Chemical composition of the rumen contents in roe deer (Capreolus capreolus) as potential quality indicator of their feeding

Abstract

In the experiment the chemical composition of rumen contents in roe deer (Capreolus capreolus) was investigated in the "Sarajevska Reka" hunting area. The investigations were done on 20 deer shot from May 2005 to January 2006. Experiment was done as random plan, with four treatments (seasons) and uneven distribution of subjects within treatments. The results of chemical analysis confirmed significant influence of season on the amount of total nitrogen and crude protein, ether extract, crude fibre, ash and ammonia nitrogen (P<0.05). Variations in pH values, NFE, calcium and phosphorus in dry matter and total ash of the rumen contents were lower and there was no significant influence of season on those parameters. The obtained results for total protein, calcium and phosphorus in the rumen contents in roe deer shot during the winter show significantly higher presence of those components than the usual recommendations for concentrate mixtures produced for the species. Although those results are not a real indication of the diet's chemical composition, they may be used as potential indicator of the quality of the diet and can be useful when formulating the additional feeding routine for winter months.U eksperimentu je ispitivan Kemijski sastav buraznog sadrzaja srne (Capreolus capreolus} u lovistu Sarajevska reka. Ispitivanja su obavljena na uzorcima koji su uzeti od 20 odstreljenih srna u periodu od proleca 2005. (maj) do zime 2006. (januar). Eksperiment je postavljen kao slucajan plan. sa cetiri tretmana (godisnja doba) i nejednakom distribucijom broja jedinki po tretmanima. Rezultati hemijske analize ukazuju na signifikantan uticaj ispitivanog faktora (godisnje doba) na kolicinu ukupnog azota i sirovih proteina, masti, celuloze, pepela i amonijacnog azota (P<0.05). Variranje pH vrednosti. BEM-a. sadrzaja kalcijuma i fosfora u pepelu i suvoj materiji buraznog sadrzaja nisu bila pod uticajem ispitivanog faktora. Dobijeni rezultati za kolicinu proteina, kalcijuma i fosfora u buraznom sadrzaju srna koje su odstreljene zimi. ukazuju na znacajno vece prisustvo ovih sastojaka u odnosu na dosadasnje preporuke za sastav smesa koncentrata za srne. Mada ovi rezultati nisu realni pokazatelji hemijskog sastava obroka, mogu da posluze kao potencijalni indikator kvaliteta obroka u cilju korekcije sastava koncentrata za dodatnu ishranu zimi.