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  • Küçük Resim
    Öğe
    Association between metabolic parameters and embryo production in superovulated dairy cattle
    (Wiley, 2024) Unay, Engin; Okuroglu, Alaeddin; Tirpan, Mehmet Borga; Coskun, Muhammed Ikbal; Sevgi, Ramazan; Yilmaz, Mehmet Ali; Unal, Ilker
    This study aims to investigate the relationship between metabolic parameters and the number of embryos produced in superovulated cows with high genetic characteristics in milk yield. Eighteen Holstein donors were treated with classic superovulation protocols, AI and flushing. During superovulation, decreasing doses of FSH (follicle-stimulating hormone) were administered at 12-h intervals for 4 days. Plasma insulin-like growth factor (IGF1), glucose (GLU), beta-hydroxybutyric acid (BHB), non-esterified fatty acid (NEFA), blood urea nitrogen (BUN) and total protein (TP) levels were determined by using an autoanalyzer. The mixed model analysis of variance was used for statistical analysis. As a result, plasma IGF1, BHB and BUN had significant interactions with both groups and days (p < .05). Additionally, plasma TP-days interactions were significant (p < .05). Furthermore, there was a negative correlation between the number of embryos and plasma BHB levels (p < .05). In conclusion, under appropriate environmental conditions, metabolic profile control of donors can contribute to the embryo production process and to the studies on the metabolic infrastructure.
  • Küçük Resim
    Öğe
    Investigation on the hair characteristics of Damascus and Kilis goats
    (Taylor & Francis Inc, 2021) Behrem, Sedat; Keskin, Mahmut; Gül, Sabri; Unay, Engin; Satılmış, Muharrem; Ünal, Murat; Erisek, Abdülkadir
    This study aimed to investigate the coarse outer guard hair and the fine down hair (cashmere) characteristics of Kilis and Damascus goats and to evaluate their potential for industrial use. Yearling goats, goats at first birth, second birth, and third birth were used as animal materials from Gaziantep. From the shoulder, rump, and rib areas of each goat, 20-25 g of the guard hair and the fine down hair (cashmere) samples were collected. These samples were examined in terms of diameter, length, tenacity, and elasticity at the Fleece and Mohair Laboratory of the International Livestock Research and Training Center. In the study, the average fiber diameter values were determined as 15.0 +/- 0.08 and 15.1 +/- 0.07 microns, and the fiber length values were 23.4 +/- 0.38 and 22.4 +/- 0.34 mm for Kilis and Damascus goats, respectively. In the light of these results, it can be said that the cashmere fiber diameter for both breeds is suitable for the textile industry. On the other hand, the fiber length is not long enough for the textile industry but can be evaluated by hand weaving method.