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    Effects of Chitosan Oligosaccharides Addition to Japanese Quail’s Diets on Growth, Carcass Traits, Liver and Intestinal Histology, and Intestinal Microflora
    (Kafkas Universitesi Veteriner Fakultesi Dergisi, 2015) TUFAN, TUNCAY; Arslan, Cavit; Sarı, Mehmet; Önk, Kadir; Deprem, Turgay; Çelik, Elif
    This research was conducted to determine effects of chitosan oligosaccharides (COS) addition to quail diets on growth, carcass traits, liver and intestinal histology, and intestinal microflora. Two hundred forty Japanese quail chicks were distributed among three treatments groups, with four replicates. A group was fed with a basal starter diet for 1-21th and a grower diet for 22-42th days (Control). The experimental groups were fed the same diets, in addition to 75 mg/kg (Trial I) or 150 mg/kg (Trial II) of COS. The final live weights of the quails in the Control and Trial I groups were higher than in the Trial II group. There were no differences among the groups in gain, feed intake, feed conversion, and carcass traits. Steatosis in the Trial II group was less than in the Control and Trial I groups. Crypt depth and villus length were higher in the Trial II group than in the other groups. The number of bacteria and yeast in the intestine were lower in the Trial I and II groups than in the Control group. In conclusion, the addition of 75 mg/ kg of COS had no adverse effect on the tested parameters, and it increased the crypt depth, villus length, and beneficially on intestinal microflora.
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    Effects of Different Fattening Systems on Fattening Performance, Slaughter and Carcass Characteristics of Male Tuj Lambs [
    (Kafkas Universitesi Veteriner Fakultesi Dergisi, 2017) Önk, Kadir; Sarı, Mehmet; Aksoy, Yüksel; Tilki, Muammer; Tufan, Tuncay; Yılmaz, İsa
    The purpose of this study were to determine effects of fattening systems on fattening performance (n=39) and slaughter and carcass characteristics (n=24) in male Tuj lambs. Three different fattening groups were formed as extensive (n=13), semi-intensive (n=13) and intensive (n=13). Lambs in the extensive group were grazed in pasture. In addition to pasture, concentrated feed was given to lambs in the semi-intensive group. High quality fodder and concentrated feed were given to those in the intensive group. The study was completed in 90 d. Final live weights of extensive, semi-intensive and intensive groups were 31.19, 41.22, and 40.56 kg (P<0.001), respectively, and for daily live weight gain were (DLWG) 117.52, 229.66, and 221.11 g (P<0.001), respectively. Feed conversion rates (FCR) were 3.05 and 5.16 respectively in the semi-intensive and intensive fattening. It was found that hot carcass weight was 13.41, 19.51, and 19.89 kg (P<0.001) in extensive, semi-intensive, and intensive fattening groups respectively. Hot carcass yield was 43.11, 46.95, and 49.77% (P<0.001) in extensive, semi-intensive, and intensive fattening groups respectively. Consequently; leg, foreleg, shoulder, neck, flank, and kidney percentages, and spleen and full stomach weights of lambs in the extensive group were higher than in semi-extensive and entensive groups. Although there was no statistical difference between semi-extensive and entensive groups in respect to fattening performance, slaugher weight, hot and cold carcass weights, entensive group was higher than the other groups in respect to hot and cold carcass yield.
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    Effects of feeding by hay, grass silage and corn silage on growth performance, rumen fluid and blood serum parameters in beef cattle
    (Revue de Medecıne Veterınaıre, 2016) Tufan, Tuncay; Arslan, Cavit; Önk, Kadir; Sarı, Mehmet; Tilki, Muammer
    The study was conducted to determine the use of hay, grass silage, corn silage and grass silage+corn silage as roughage sources on growth performance, some rumen and blood serum parameters in beef cattle. A total of 24 Simmental beef cattle (12 male, 12 female), 9 or 10 months age, which were initially 142.4 kg live weight, were used in this study. The animals were divided into four treatment groups each consisting of 6 cattle (3 male, 3 female). All animals in the groups were fed with 2888 g for 0-21 d, 3813 g for 22-42 d and 5177 g for 43-63 d concentrated feed. In addition to the concentrated feed, one of the following roughage source hay, grass silage, corn silage or grass silage+corn silage (50:50) were given ad libitum to animals in each group. Animals were fed by group basis. At the 63 d of the study, rumen fluid and blood serum samples were taken from the animals. Final live weights of the animals did not affect. Average daily weight gains of the cattle in the overall study were no statistical differences among the groups. The roughage sources did not affect rumen fluid pH, NH3 N, acetic-, propionic- and butyric acid concentrations of beef cattle. The roughage sources did not also affect serum glucose, total protein and albumin concentration of animals. Consequently, it is concluded that mentioned roughage sources could be preferred as alone or grass silage+corn silage combination in feeding of beef cattle after economic analyses of these feedstuffs.