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Articles by A. Can
Total Records ( 5 ) for A. Can
  N. Denek and A. Can
  This study was carried out to investigate effect of no additives (control) or 10% wheat straw, 10% wheat straw+0.5% urea, 10% wheat straw+5% molasses, 10% wheat straw+5% wheat grain, 10% wheat straw+0.5% urea+5% molasses and 10% wheat straw+0.5% urea+5% wheat grain (weight basis) on silage quality and in vitro dry matter digestibility of wet orange pulp. Contents of dry matter, crude protein, ADF, NDF, pH values In vitro dry matter digestibilities and fleig points of wet orange pulp were in range of 14.62-22.26, 7.62-14.17, 30.97-41.46, 51.02-56.22, 3.60-4.13, 51.58-80.62 and 81.85-101.73%, respectively (p<0.05). As a result, wet orange pulp can be ensiled well with or without additives, but addition 10% of wheat straw would be benificial to eliminate negative effects related with the high moisture content of wet orange puple.
  Denek, N. , A. Can and S. Koncagul
  This study was carried out to investigate the precision of rumen fluid of slaughtered sheep and cows as the inoculums in the in vitro digestibility technique and its comparison with in vivo apparent digestibility techniques for ten feeds. The following two in vitro and one in vivo technique were used. These were the in vitro slaughtered Sheep Rumen fluid Technique (SRT), the in vitro slaughtered Cattle Rumen fluid Technique (CRT) and the in vivo Apparent Digestion Technique (ADT). Results from this study indicate that SRT and CRT have potential to be used for predicting in vivo DM digestibility. However, more research is required to modify both SRT and CRT to get better regression equation with low RSD and high correlation coefficient.
  N. Denek , E. Polat , S. Koncagul and A. Can
  This study was carried out to determine incubation time and amount of horse fecal content for measuring in vitro dry matter digestibility of roughages (barley straw, wheat straw, lentil straw, wheat silage, corn silage and alfalfa hay) and their comparison with in vivo digestibility values. In in vitro study, inoculums were prepared using 100, 150, 200, 250, 300, 330, 500, 660 ve 1000 g faeces for per liter of buffer. Roughages were incubated with these inoculums at two incubation times (48 vs 72 h) before 48 h pepsin-HCl digestion. Six fat tailed Awassi rams (42.72.5 kg) at the age of two years were used as experimental animals (3 per treatments) in an apparent digestibility experiment. According to result of this study, the best equation for estimating in vivo DM digestibilities was obtained with usage of inoculum containing 250 g faeces for per liter buffer solution at length of 48 h incubation (r = 0.93, Y = 24.11 (2.57) + 0.62 (0.05) X, R2 = 0.87 ve RSD = 3.19) and 660 g faeces for per liter buffer solution at length of 72 h incubation (r = 0.94, Y = 16.08 (2.88) + 0.72 (0.05) X, R2 = 0.89 ve RSD = 2.88). Even though, result from this study showed that horse faecal fluid had high potential to be used for predicting in vivo DM digestibility, further researches dealing with larger number of feeds with known in vivo DM digestibility are required to improve usage horse faecal fluid for in vitro inoculums source.
  A. Can , N. Denek and K. Yazgan
  This study is carried out to determine effect of different level of urea and molasses liquid supplementation on nutrient intake, digestibility and rumen parameters of wheat straw fed Awassi ram lambs. Total fifteen 2 years old Awassi ram lambs (44.40 ? 2.0 kg) were allocated to five treatments (3 per treatment) at random within live weight. Treatments were wheat straw (Control; C), WS + 0.75% urea and 10% molasses (T1), WS + 1.5% urea+ 10% molasses (T2), WS + 0.75 %urea + 20% molasses (T3), and WS + 1.5 %urea + 20% molasses (T3) as fed basis. Supplementing urea and molasses increased DMI and OMI of ram lambs (P <0.05). Increasing urea level from 0.75 to 1.50% and molases level from 10 to 20% did not changed DMI or OMI (P>0.05). Dry matter and OM digestibility of wheat straw control diet (C) were found lower than urea and molasses supplemented treatment diets (P <0.01). Control diet consuming animals had a lower CP digestibility than urea and molasses supplemented animals (P<0.05). Increment both urea (T1-T3 vs T2-T4) and molasses (T1-T2 vs T3-T4) increased CP digestibility of diets. Control (WS) diet had a lower NDF digestibility than urea and molasses supplemented treatment diets (P <0.01). While increasing molasses level (T1-T2 vs T3-T4) did not affect NDF digestibility (P>0.05), increment of urea (T1-T3 vs T2-T4) improved NDF digestibility (P <0.05). ADF digestibilities of control (WS) and treatment diets were found similar (P> 0.05). Increment of molasses levels (T1-T2 vs T3-T4) and urea levels (T1-T3 vs T2-T4) increased ADF digestibilities of diets (P<0.01). Ruminal pH was similar for the different diets, while NH3-N (mg/100 ml) was higher (P< 0.01) for the treatments diet. As a conclusion, supplementation with urea and molasses improved rumen environment, feed intake and digestibility in Awassi ram lambs fed wheat straw.
  N. Denek , O. Kaplan , M. Avci and A. Can
  This study was carried out to investigate the use of different levels of phytase enzyme supplementation on the growth performance, carcass yield, oxidative stress, faecal phosphorus and biochemical parameters of Japanese quails. Total of 220 Japanese quails (Coturnix coturnix japonica) at three-day old age were used. The birds were randomly assigned to one control and three experimental groups based on their initial body weight, comprising five replicates with 11 birds each. They were fed a basal diet (Control) or the basal diet supplemented with either 500 FTU kg 1 (Group I), 750 FTU kg 1 (Group II) or 1000 FTU kg 1 (Group III) of microbial phytase (Peniophora lycii, containing 500 FTU kg 1 phytase activities). As a result, phytase supplementation to diets of quails didn`t affect growth performance and oxidative stress parameters (p>0.05); however, it decreased faecal phosphorus content (p< 0.05) and serum potassium level (p< 0.01) and increased triglycerides and serum VLDL levels (p< 0.05).
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