Yazar "Parlak, A. O." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    Change of Mineral Composition of Herbaceous Species at the Mediterranean Shrublands
    (Univ Namik Kemal, 2013) Gokkus, A.; Parlak, A. O.; Baytekin, H.; Hakyemez, B. H.
    A significant amount of herbaceous species provide to be an increasing of total organic matter depending on shrub intensity in the maquis vegetation. Therefore, the yearlong mineral contents of these herbaceous species and their importance in terms of goat feeding were investigated at this vegetation. The trial was performed in two different sites, including protected and grazed, for a period of 14 months in canakkale (October 2006 and November 2007), and therefore the plant samples were collected by mowing the dimensions of 0.5 m x 0.5 m ten frames in the middle of each month. The change of total 18 elements, including macro (N, P, K, Ca, Mg, S), micro (Fe, Mn, Cu, B, Na, Zn), and other elements (Se, Co, Ni, Cr, Cd, Pb), was investigated in the collected samples. According to the results of the study, the change of all elements except for Se was significant in both protected and grazed areas. In general, N, K, Mg, and S ratios of the plants increased from April, and they decreased in summer, autumn, and winter. P from the protected area at the beginning of the summer and from the grazed area in the spring increased. The change of Ca followed an opposite path. Iron rates were high in the winter and low in the summer; Mn and Cu were relatively high in the spring and very low in the summer; B and Na were excess in the spring and summer and few in the autumn and winter; Zn was high in the winter and low in the other months; Co, Ni, Cd, and Pb were high especially in the winter and lower in the summer; Cr was high in February and low in the other months. Se increased especially in spring. As the means of both areas, N, P, K, Ca, Mg, and S amounts of the plants were 12.45, 1.98, 10.78, 10.36, 2.07, and 1.45 g/kg, respectively, whereas Fe, Mn, Cu, B, Na, and Zn amounts were 676.2, 143.0, 6.3, 23.4, 1497.5 and 27.3 mg/kg, respectively. In evaluation based on the goats which were fed with 1 kg hay per day, N in early summer and autumn, K from the grazed area in the summer and autumn, Mn in the summer and 5, Cu, and Zn throughout the year were determined as insufficient, whereas there was not found any shortage for the other nutrients.
  • [ X ]
    Öğe
    FORAGE QUALITY OF DECIDUOUS WOODY AND HERBACEOUS SPECIES THROUGHOUT A YEAR IN MEDITERRANEAN SHRUBLANDS OF WESTERN TURKEY
    (Pakistan Agricultural Scientists Forum, 2011) Parlak, A. O.; Gokkus, A.; Hakyemez, B. H.; Baytekin, H.
    Nutritional stress during dry summer period is considered as a primary factor limiting goat production in the Mediterranean region. In this study, forage quality of two deciduous woody species (gall oak (Quercus infectoria Oliv.) and Christ's thorn (Paliurus spina-cristi Mill.)) and herbaceous species in a shrubland in the South Marmara was determined to assess their quality and capacity to meet goats needs. Dry matter (DM), ash, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), dry matter digestibility (DMD), metabolic energy (ME), Phosphorus (P) and Calcium (Ca) were determined in the shrubs and herbaceous. Results showed that DM and Ca in the gall oak were distinctly low in April. On the other hand, its CP and P were high in April while DMD and ME were high in May and June. Contents of DM, ash and Ca in the Christ's thorn showed a decrease in April-May and those of CP, DMD, and ME increased in May. Herbaceous had their lowest DM, NDF, and ADF in April and highest CP, DMD, and ME in March-April. Consequently, when goats' needs were considered, goats should be fed with supplementary energy feed throughout the year except for spring months, and with CP during autumn months in order to obtain satisfactory productivity.