Yazar "Umucalilar, HD" seçeneğine göre listele

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    Determination of Protein Ruminal Degradabilities of Some Protein Sources
    (ECOLE NATIONALE VETERINAIRE TOULOUSE, 2003) Umucalilar, HD; Coskun, B; Gülşen, Nurettin; Polat, ES; İnal, Fatma
    In this experiment, some of the protein sources such as meat-bone meal (MBM), fish meal (FM), soybean meal (SBM), cotton seed meal (CSM) and sun flower meal (SFM) samples were incubated in rumen for varying periods by using Nylon-bag technique and have been monitored for the Dry Matter Degradation (DMD), Crude Protein Degradation (CPD) and Effective Rumen Degradability of Protein (ERDP). The ERDP values of MBM was 50.26 %, FM 38.12 %, SBM 61.38 %, CSM 59.79 % and SFM 75.74 % in 5 % outflow rate/hour. There was a considerable variation in dry matter and protein degradation within and between feedstuffs.
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    The nutritive value of Prangos ferulacea
    (WILEY, 2004) Coskun, B; Gulsen, N; Umucalilar, HD
    This study was conducted to determine the chemical composition and nutritive value of Prangos ferulacea, a plant found in the Mediterranean and Middle-east regions, where it is used as animal fodder. Samples of mature plants were collected from S.E. Turkey. Metabolizable energy (ME) values were estimated from in vitro gas production measurements and from chemical composition. ME concentrations of the whole plant, leaves and stems were estimated to be 12.2, 11.9 and 12.7 MJ kg(-1) dry matter (DM) respectively, which compares favourably with high-quality forages commonly used in ruminant feeding. The DM degradability of the whole plant, leaves and stems increased up until 48 h of in situ incubation, 866, 915 and 784 g kg(-1) DM respectively, but changed little between 48 and 72 h. In vitro DM and organic matter digestibility of the whole plant, leaves and stems were 0.769 and 0.806, 0.773 and 0.790, and 0.740 and 0.840 respectively. The results show that P. ferulacea may be regarded as a high-energy forage, but further research is needed on its intake characteristics and the levels of animal performance that can be achieved from its inclusion in the diet.
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    Prediction of nutritive value of a native forage, Prangos uechritzii, using of in situ and in vitro measurements
    (ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2004) Gulsen, N; Coskun, B; Umucalilar, HD; Dural, H
    This study was carried out to determine the chemical composition, in situ dry matter (DM) degradability, in vitro digestibilities and metabolizable energy (ME) contents of Prangos uechtritzii at different stages of maturity (prebud, mid-flower and late flower) naturally grown in some and regions of Turkey. The proportion of leaf at mid- and late-flower decreased compared to prebud stage. Stage of maturity affected DM and crude protein contents of the P. uechtritzii and fractions. In the whole-plant, NDF and ADF concentrations increased with plant maturity as a result of increased stem ratio. The effective degradability of dry matter, in vitro dry matter digestibility, in vitro organic matter digestibility, and ME did not change greatly by stage of maturity. Compared to ordinary forages used in ruminant feeding, the forage nutritive value of P. uechtritzii was equal to or better. (C) 2003 Elsevier Science Ltd. All rights reserved.