Browsing by Author "Denek, N."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Article
    Effect of Dried Thyme Pulp (Tymbra Spicata L. Spicata) on Fermentation Quality and in Vitro Organic Matter Digestibility of Meadow Grass and Alfalfa Silages; Kuru Kekik (Tymbra Spicata L. Spicata) Posasının Çayır ve Yonca Silajının Fermantasyon Kalitesi ve in Vitro Organik Madde Sindirilebilirliğine Etkisi
    (Veteriner Fakultesi Dergisi, 2017) Aksu, T.; Denek, N.; Aydin, S.S.; Dogan das, B.; Savrunlu, M.; Özkaya, S.
    The aim of the study was to evaluate the possible effect of dried Thyme (Thymbra spicata L.) pulp (DTP) on first-cut meadow grass (Poa trivialis L.) and alfalfa (Medicago sativa L.) silage fermantation parameters and in vitro organic matter digestility. Experimental silage consisted of four replicates for each silage group (Grass, (G) and Alfalfa (L), respectively). Each silages groups were supplemented with DTP at 0, 0.5, 1.0, 3.0, and 5.0% level, respectively. The silos were stored for 60 d at room temperature (about 22°C). Results showed that silages added with DTP had higher amounts of NDF, acetic acid and propionic acid whlist lower amounts of lactic acid and NH3N-TN compared to those of control (P<0.001). DTP significantly reduced microbial load of silage opened at 60 days without changing lactobacilli (P<0.001). It was concluded that the reducing in the load of undesirable microorganisms (Enterobacter, yeast and mould) without causing a decline in the number of lactobacilli could be provided significantly advantages in terms of improving the aerobic stability of the silages. © 2017 Elsevier B.V., All rights reserved.
  • Thumbnail Image
    Article
    The Effect of Mediterranean Thyme (Thymbra Spicata L. Var. Spicata) Essential Oil on Fattening Performance and Ruminal Parameters in Lamb
    (Kielanowski inst Animal Physiology Nutrition, 2017) Baytok, E.; Kara, K.; Aksu, T.; Guclu, B. K.; Ozkaya, S.; Denek, N.; Akcay, A.
    The aim of this study was to investigate the effect of dietary supplementation of Thymbra spicata L. var. spicata (TS) essential oil (10 or 15 mu l . kg(-1) live weight (LW)) on growth performance (LW, LW gain, feed intake) and rumen parameters (volatile fatty acids (VFA)) and ammonia levels, and pH) in lambs. The experiment lasted 56 days, including 14 days of adaptation and 42 of experimental period. The TS essential oil was extracted from the leaves harvested at the beginning of plant flowering and contained: 66.86% carvacrol, 12.18% p-cymene, 10.73%.-terpinene and 2.77% thymol. The addition of TS essential oil to concentrate feed did not affect final LW, LW gain, feed intake or feed conversion ratio (P > 0.05). Molar concentrations (mmol . l(-1)) of total VFA and acetic (A), butyric (B) and propionic (P) acids, and levels of pH and ammonia-nitrogen (NH3-N) in rumen fluid were also not affected by TS essential oil inclusion (P > 0.05). However, the proportion of A and (A+B): P ratio in rumen fluid VFA increased linearly (P < 0.01) with increasing TS essential oil doses, whereas the P proportion decreased linearly (P = 0.008). So, it could be suggested that TS essential oil enhanced the concentration of selected VFA in rumen fluid through a positive effect on feed digestion in the rumen. In particular, the linear increase in A and (A+ B): P ratio could have enhanced fibrolytic effect in the rumen ecosystem. It was concluded that different doses and longer terms of use of TS essential oil should be further investigated in in vivo studies.