Browsing by Author "Cengiz, F"

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Growth, Feedlot Performance and Carcass Characteristics of Karakas and Crossbred Lambs (F1) (Ile De France X Akkaraman (G1) X Karakas) Under Rural Farm Conditions in Turkey
(South African Journal of Animal Sciences, 2004) Gökdal, Ö; Ülker, H; Karakus, F; Cengiz, F; Temur, C; Handil, H
In this study the possibilities of using the Ile de France x Akkaraman (G(1)) genotype (IDFAG(1)) in improving the growth performance and carcass characteristics of fat-tailed Karakas sheep raised in rural farm conditions in the Van Region of Eastern Anatolia, Turkey, were investigated. The aim was to obtain some preliminary results for future studies which will be designed to develop a genotype which has the ability to adapt to the region's conditions, has a high yield and quality meat, grows fast, has a high feed conversion ability and a thin fat tail. Growth and feedlot performances and carcass characteristics of Karakas (KAR) and crossbred (IDFAK) lambs obtained from the mating of IDFAG(1) rains with Karakas ewes were evaluated. A total of 97 KAR and IDFAK lambs reared under farm conditions was evaluated for growth characteristics. For the evaluation of feedlot performance and carcass characteristics, 10 KAR and seven IDFAK single-born male lambs wearied at two months of age were subjected to a finishing diet for 70 days and slaughtered. Least squares means of the weights of KAR and IDFAK lambs at birth and at six months were 3.2 +/- 0.08 and 3.5 +/- 0.08 kg and 29.6 +/- 1.24 and 30.2 +/- 1.41 kg, respectively. The means of untailed cold carcass weight and untailed dressing percentage of KAR and IDFAK lambs were 13.2 +/- 0.39 and 14.3 +/- 1.10 kg and 39.7 +/- 0.42 and 44.3 +/- 1.10%, respectively. Although feed efficiency and many carcass characteristics did not differ between groups, the carcasses of the IDFAK lambs contained a higher percentage of intramuscular fat that is desirable for consumers in Eastern Anatolia. Encouraging results have been obtained to suggest that IDFAG1 rams could be used to improve the productivity of Karakas sheep. Nevertheless, more detailed and larger scale experiments are needed to confirm the results on growth and carcass characteristics of crossbred lambs under different farm conditions.
Some Physical Fleece Characteristics of Anatolian Merino, White Karaman, Ile De France X Anatolian Merino (F1) and Ile De France X White Karaman (F1) Ewes
(Tubitak Scientific & Technological Research Council Turkey, 2003) Arik, IZ; Dellal, G; Cengiz, F
Some fleece characteristics of Anatolian Merino, White Karaman and their crosses (F-1) with lle de France ewes were compared to reveal the effects of these crossbreedings. The research material was fleece samples taken from the shoulder, ribs and thigh. Fiber diameter, fiber elasticity and strength and fiber real length were analysed by OFDA, FAFEGRAPH and USTER AL-100, respectively. Staple length and fiber natural length were measured with a ruler and clean wool ratios were calculated with a conditioning oven. As a result of the statistical analysis, it was found that crossing with lle de France generally had no negative effects on the fleece characteristics of the Anatolian Merino, whereas a small improvement was observed in lle de France x White Karaman (F-1) crosses.
A Study on Silage Quality and Rumen Degradability of Mixed Silages Containing Different Levels of Sudangrass and Hungarian Vetch
(Scientific Technical Research Council Turkey, 2003) Demirel, M; Cengiz, F; Erdogan, S; Çelik, S
This study was conducted to determine the silage quality and degradability of some nutrient matter of pure sudangrass silage (S) and mixed silages made up from 75% sudangrass + 25% hungarian vetch (75S25HV) and 50% sudangrass + 50% hungarian vetch (50S50HV) in the rumen by the nylon bag technique at 4, 8, 16, 24 and 48 h. The three different silage mixtures were put into jars and incubated for 70 days. Four rumen fistulated Akkaraman male lambs were used to determine the degradability of silages in the rumen. Satisfactory silages were obtained in terms of physical properties. While there was statistically significant difference among silages in terms of pH levels P < 0.01, but lactic, acetic, propionic and butyric acid levels of silages were found to be significant at (P < 0.05). The lowest pH, acetic. propionic and butyric acid levels were 5.15, 6.87 g/kg DM, 2.18 g/kg DM and 1.10 g/kg DM, respectively, and the highest lactic acid level was 9.48 g/kg DM obtained from S silage. Although differences among silage groups for dry matter and crude cellulose degradabilities in the rumen at 48 h were not significant, the differences between the crude protein degradability of S and 50S50HV silages were statistically significant (P < 0.01). In general, adding hungarian vetch to sudangrass increased the degradability of dry matter and the crude protein of the silages in the rumen (P < 0.05). In conclusion, in terms of silage quality and the degradability of some nutrients, hungarian vetch can be added up to 25% and 50% on a dry matter basis to sudangrass for ensiling.