2008 Cilt 2 Sayı 5

Permanent URI for this collectionhttps://hdl.handle.net/11452/32081

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Browsing by Department "Zootekni Bölümü"

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    Characterization of semi-extensive goat production systems in South Marmara region of Turkey
    (Uludağ Üniversitesi, 2008) Koyuncu, Mehmet; Uzun, Şebnem Kara; Tuncel, Erdoğan; Ziraat Fakültesi; Zootekni Bölümü
    This study attempts to describe the semi-extensive goat farming sector in south Marmara region of Turkey and to establish characteristics. Ninety-two goat farmers were surveyed in four provinces of this region. The aim of the study was to assess and document the prevailing goat production systems in the provinces. Information obtained was mainly on flock sizes, reasons for keeping, breeding and management practices. A structured questionnaire, based on interviews of 92 respondents revealed variability in response among flock sizes (116–220). Most of the goat farms studied is single-worker or family managed. Goat supply kids, milk and fiber, especially to farmers moving their animals through seasonal grazing. Farms specializing in milk production, whose main activity is dairy goat farming. Feeding depends largely on grazing, with little area being cultivated to produce feed for the goats. Goats in these systems have not been adequately studied, nor have they received the same attention as sheep. Goat production practices are essentially traditional and characterized by low productivity. Poor overall management, inadequate housing, malnutrition, improper use of grazing resources, inadequate health services, lack of organized marketing and lack of a national policy on small ruminant production, were identified as major constraints. However, recently more attention has been paid to goat production by producer and productivity is increasing. This work supposes previous steps for improving the semi-extensive goat farming sector. From a methodological point of view, the discussion on variable types and utility establishes farm type characteristics.
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    Effects of plasma insulin, glucose and NEFA concentrations of feeding frequency during long term in lambs
    (Uludağ Üniversitesi, 2008) Udum, C. Duygu; Cetin, Meltem; Balcı, Faruk; Güneş, Nazmiye; Hecer, Canan; Veteriner Fakültesi; Zootekni Bölümü
    In ruminants, very little is known about the physiological background of the mechanisms involved in feed intake regulation. Mechanisms that control feed intake exist in ruminants but the exact nature of the control systems are not well understood. For this reason, the effects of different feeding regimens, and the initiation/termination of feeding on blood glucose, insulin, and NEFA were measured in lambs fed once, two times daily and fed ad libitum. To determine insulin hormone influence on feed intake, blood was sampled before 30 minutes of feeding (08:30) and after 1 hour of feeding (10:00) in the morning, and collected 14:00, before 30 minutes of feeding (15:30), after 1 hour feeding (17:00). In the different times fed lambs, plasma insulin levels had a significant change (P<0.05) between groups and between sampling times(P<0.05) but glucose and NEFA levels had no significant changes among groups. We have demonstrated for the first time that modification of feeding regimen could affect plasma insulin levels.