Yazar "Kamalak, Adem" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Effects of Hosting Trees on Chemical Composition, Minerals, Amino Acid, Fatty Acid Composition and Gas-Methane Production of Mistletoe (Viscum album) Leaves
    (Springer, 2024) Ciftci, Beyza; Karaman, Safa; Kamalak, Adem; Kaplan, Mahmut
    Effects of hosting trees on feed quality traits of mistletoe samples were investigated in this study. Mistletoe samples were collected from pine, willow, hawthorn, locust, apricot, wild pear and almond trees. Effects of hosting trees on nutritional traits of mistletoe leaves were found to be significant. The greatest crude protein content was observed in samples collected from locust tree and the greatest crude oil from pine tree, the greatest crude ash from apricot tree, the lowest ADF and NDF ratios from hawthorn tree. Condensed tannin contents of mistletoe samples varied between 0.68 and 0.97% and the differences in condensed tannin contents of mistletoe samples were not found to be significant. Apricot (53.85 ml) and wild pear (54.48 ml) had the greatest gas production and willow tree (10.61 ml) had the greatest methane production. Metabolizable energy (ME) values varied between 8.49 and 10.82 MJ (kg/DM) and organic matter digestibility (OMD) values varied between 58.26 and 73.97%. Although all samples were rich in minerals, pine tree was prominent for micro elements. The major saturated acids found in the leaf oils were palmitic acid and the major unsaturated fatty acids were oleic, linoleic and linolenic acids. The total saturated fatty acid levels of mistletoe collected from different trees were between 13.42 and 25.68%, while the total unsaturated fatty acids were between 74.32 and 86.58%. Mistletoe samples have amino acid content similar to forage crops. In addition, they have high value of proline. It was concluded based on present findings that mistletoe samples might constitute a quality feed source for animals. Use of parasitic mistletoe species in animal feeding may offer a well method in reduction of damages on forest and culture trees and supply a quality feed source for ruminants. [GRAPHICS]
  • Küçük Resim Yok
    Öğe
    Evaluation of some commercial dairy rations in terms of chemical composition, methane production, net energy and organic matter digestibility
    (Mattioli 1885, 2020) Boga, Mustafa; Kurt, Ozer; Ozkan, Cagri Ozgur; Atalay, Ali Ihsan; Kamalak, Adem
    The aim of the present study was to evaluate some commercial dairy rations in terms of chemical composition, methane production, net energy for lactation (NEL) and organic matter digestibility (OMD). There are considerable variations among total mixed rations (TMRs) used by farms, especially in terms of chemical composition. Crude protein (CP) contents of TMRs ranged from 9.83 to 14.32 %. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents of TMRs ranged from 22.79 to 32.32 % and 42.5 to 52.98 % respectively. There are significant differences among TMRs in terms of gas, methane production, NEL and OMD. Gas production ranged from 82.25 to 97.25 ml. Gas production, NEL and OMD for TMR 3, 6 and 8 was significantly higher than the others. Methane production (ml) for TMR 8 was significantly higher than that for TMR 7. As a conclusion, TMRs investigated in the current study are not well balanced to meet the nutritional requirements of lactating cows. Therefore, it is not likely that lactating cows fed with these TMR will not explain their genetic potential very well. Especially CP and NEL of TMRs should be taken into consideration to improve efficiency in milk production of lactating cows in small farms in Turkey.