Yazar "Atasoglu, C" seçeneğine göre listele
Listeleniyor 1 - 6 / 6
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Effect of increasing zinc concentration in the diets of brown parent stock layers on various production and hatchability traits(Archiv Fur Tierzucht, 2004) Durmus, I; Atasoglu, C; Mizrak, C; Ertas, S; Kaya, MEffect of increasing zinc concentration in the diets of brown parent stock layers on various production and hatchability traits was investigated. After hatching, chicks were allocated to different treatment groups whose diets were formulated to contain graded concentrations 60 (control), 90, 120, 150, 180 and 210 mg zinc (Zn) kg(-1) throughout 62 weeks. No effect of increasing zinc concentration on egg production, 5% egg production age, livability and hatchability rate was found (P>0.05). On the other hand, significant differences were obtained with increase in zinc concentration in egg weight, feed conversion rate and hatchability effciency of the fertile eggs (P<0.05). The results of the present study suggest that the diets of brown parent stock layers should include 180 mg Zn kg(-1) for optimal performance and hatchability traits.Öğe Effect of probiotic supplementation shortly before and after weaning on growth of Turkish Saanen kids(Archiv Fur Tierzucht, 2005) Ayisigi, K; Atasoglu, C; Yurtman, SY; Mendes, M; Pala, ASixteen kids were assigned at an average of 6 weeks of age to two treatments: control with no supplementation and 5 g/kid of probiotic supplementation daily. The probiotic was resuspended in distilled water and given orally every day in the morning throughout a 42 d study. Grower concentrate, vetch hay and water were offered ad libitum throughout the study. Kids were abruptly weaned 14 days after the initiation of the study and received only grower concentrate, vetch hay and water ad libitum from d 15 to 42. The supplementation of probiotic did not result in any significant differences in weight gain, nutrient intake, feed efficiency and diarrhea score in kids. However a positive trend toward improved weight gain, feed intake and feed efficiency in kids supplemented with probiotic suggested that probiotic might improve growth and performance of kids and are worth further investigation.Öğe Effects of three different lighting programs on live weight change of bronze turkeys under semi-intensive conditions(Archiv Fur Tierzucht, 2005) Mendes, M; Karabayir, A; Ersoy, IE; Atasoglu, CA study was conducted to evaluate the influence of three lighting programs (23L: 1D), (18L: 6D), and (12L: 12D) on live weight changes of American Bronze turkeys by Profile analysis technique. The F-statistics and Wilk's Lamba statistics for testing group-response interaction or similar profiles suggested that there was a significant interaction effect (p<0.01). The effects of the three lighting programs on live weight gain appeared to be different throughout the study except for the last 6 weeks. On the other hand, the results of the present study suggested that the effect of the three lighting programs on live weight gain followed a similar trend or three lighting programs had similar physiological effect on live weight gain from 10(th) week on wards.Öğe Growth and behavioral traits of Turkish Saanen kids weaned at 45 and 60 days(Elsevier Science Bv, 2004) Ugur, F; Savas, T; Dosay, M; Karabayir, A; Atasoglu, CThe influence of weaning age on various growth characteristics and behavioral traits of Turkish Saanen kids was investigated. The kids were weaned at 45 and 60 days of age. The body weights, body measurements and behavioral traits were monitored during the experimental period. The average daily live weight gains of the kids in both of the treatment groups were similar between weaning and 4 months of age, and birth and 4 months of age. Weaning age influenced roughage and water consumption, and lying. Although there were no difference between the two groups in terms of growth characteristics, kids in 45-day group consumed more roughage than those in 60-day group. Because of a 15-day difference between the two weaning practices, the kids, weaned at 45 days of age seemed more experienced and spent the rest of their spare time lying. The results of the present study indicated that no significant differences were found in the growth and behavioral traits of Turkish Saanen kids, weaned at 45 or 60 days of age, and suggested that kids could be weaned at 45 days of age. (C) 2003 Elsevier B.V. All rights reserved.Öğe Influence of ammonia concentration on 15N-ammonia incorporation and de novo amino acid synthesis by the non-cellulolytic ruminal bacteria, Prevotella bryantii B14, Selenomonas ruminantium HD4 and Streptococcus bovis ES1(Scientific Technical Research Council Turkey, 2002) Atasoglu, C; Wallace, RJThe influence of ammonia concentration on N-15-ammonia incorporation and de novo synthesis of amino acids by three predominant non-cellulolytic species of ruminal bacteria, Prevotella bryantii B(1)4, Selenomonas ruminantium HD4 and Streptococcus bovis ES1, was investigated. The medium contained pancreatic casein hydrolysate (comprising mainly peptides with some amino acids) at a concentration of 1 g/litre and additions of graded concentrations of (NH4Cl)-N-15. When the initial concentration of ammonia increased from 0.045 to 0.436 g N/L in the growth medium, the proportion of cellular nitrogen and amino acid nitrogen derived from ammonia by P. bryantii and S. ruminantium increased (ranging from 0.33 to 0.84 for cellular-nitrogen and from 0.23 to 0.67 for amino acid-nitrogen) (P<0.001). but S. bovis incorporated a fixed proportion of ammonia and peptides in all media except for the lowest ammonia containing medium (P>0.05). Glutamate and aspartate were the most highly labelled amino acids with N-15, whereas N-15 enrichment in proline was lower than that in other amino acids in all species, followed by phenylalanine in P. bryantii, lysine in S. ruminantium and phenylalanine, valine and lysine in S. bovis. indicating preferential incorporation of these amino acids from pancreatic casein hydrolysate. The results of the present study, thus, suggest that the concentration of ammonia has an important effect on de novo synthesis of bacterial cellular-nitrogen and amino acids in the non-cellulolytic ruminal bacteria and this effect depends on bacterial species.Öğe Short-term effects of basolateral glucosensing on sodium-dependent glucose uptake in ruminal epithelia of sheep(Kielanowski Inst Animal Physiology Nutrition, 2004) Aschenbach, JR; Atasoglu, C; Borau, T; Gäbel, GThis study aimed to elucidate whether sheep can increase ruminal glucose absorption acutely to counteract lactic acid formation after a concentrate meal. Pre-incubation of Ussing-chambered ruminal epithelia with D-glucose (10 mM) on both sides for 180 min increased the apical uptake of 0.2 mM C-14-D-glucose. An equivalent effect was seen after serosal but not mucosal pre-incubation with D-glucose for only 10 min. However, a 30-s serosal pre-incubation with D-glucose did not stimulate D-glucose uptake. Stimulation of uptake by serosal D-glucose was not seen after phlorizin treatment. Thus, ruminal glucose absorption via SGLT-1 can be up-regulated acutely via a basolateral glucosensor.
