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Articles by Aydan Yilmaz
Total Records ( 3 ) for Aydan Yilmaz
  Aydan Yilmaz , Suzan Altinok and Zahide Kocabas
  The purpose of this study was to determine, the best seeding rates for corn and soybean for the highest quality of silage. To do this, the field experiments were carried out in randomized block design with 3 replications using corn variety P.32K61 and soybean variety OAC Salem in 2001 and 2002 as materials. They were seeded as monocropping and intercropping in alternated rows with the seeding rates of 100% corn + 0% soybean (SR1), 100% corn + 50% soybean (SR2), 100% corn + 100% soybean (SR3), 50% corn + 50% soybean (SR4), 50% corn + 100% soybean (SR5) and 0% corn + 100% soybean (SR6). The nutriments components, namely, Dry Matter (DM), Crude Ash (CA), Crude Protein (CP), Crude Fat (CF), Crude Cellulose (CC) and cell wall components, namely Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF) and Acid Detergent Lignin (ADL) were analyzed Before Ensiling (BE) and After Ensiling (AE) in both years. Hemicelluloses, cellulose and lignin were derived from the cell wall components. To determine the silage quality value, the Flieg points were calculated. The silages made using corn grown intercropped with soybean were good or very good quality in terms of physical characteristics. The soybean grown as mono-crop did not achieve high quality silages. The results substantiated that the mono-cropped corn and corn grown together with soybean at the different seeding rates gave rise to high quality silages. The digestibility of the silages mode from corn and soybean after ensiling was higher than that observed before ensiling.
  Aydan Yilmaz , Muzaffer Corduk , Nese Nuray Toprak and Safak Pulatsu
  In this study, the effects of Protected Fat (PF) supplementation on the performance and some milk parameters were investigated on dairy goats. The experiment began after completion of the parturitions and lasted for 8 weeks. The animals were individually fed with an additional 100 g PF a day in the supplementary group. The data on Body Weight (BW), Concentrate Feed Intake (CFI), Dry Matter (CDM), Crude Protein (CCP), Metobalizable Energy (CME) intake in concentrate feed was observed every week. Moreover, Milk Yield (MY), Milk Dry Matter (MDM), Milk Fat (MF), Milk Ash (MA), Milk Density (MDEN) and Milk pH (MpH) was observed every 2 weeks during 8 weeks period. The results indicated that there was statistically significant differences in BW between weeks (p<0.01) although, a statically significant interaction between weeks and groups were found in terms of CFI (p<0.01). The BW increased from the beginning of experiment to the end of experiment. Although, CDM and CCP in PF group decreased, there was an increase in CME. Regarding MY, PF group was not significantly differed (p>0.05) from the NPF group. The results showed that the interaction between groups and weeks was statistically significant in terms of MF (p<0.05). While, the differences in MDM between both weeks and groups were statistically significant (p<0.05), there was significant divergence only between weeks regarding MA, MpH and MDEN (p<0.01). The findings of this study clarified that PF group had the higher MDM and MF.
  Aydan Yilmaz , Zahide Kocabas , Elif Ozturk and Dilek Gokceyrek
  The purpose of this study is to investigate the possibilities of calculating Effective Degradability of Dry Matter (EDDM), organic matter (EDO) and crude protein (EDP) by means of the shortest ruminal incubation time. After calculating EDP, EDO and EDDM using 4-72 h ruminal incubation time, the relationship between them and degradability of Dry Matter (DMD), Organic Matter (OMD) and Crude Protein (CPD) measured at 4, 8, 16, 24, 48 and 72 h was investigated by applying simple linear regression analysis. The determination coefficient indicated that 93.9 of variation in EDP for 0.02 h-1 can be adequately explained by CPD measured at the end of 48 h of ruminal incubation (p<0.01). The results indicated that EDP for outflow rate of 0.05 and 0.08 h-1 would be estimated from the CPD measured at 8 h. Moreover, the calculated determination coefficients were 91.7 and 94.6% for outflow rates of 0.05 and 0.08 h-1, respectively, which confirmed that EDO can accurately be calculated by means of the 8th h measurements of OMD (p<0.01). The results also shown that 90% of variation in EDDM, which is a satisfactory amount, can be elucidated by the DMD measurements of 16th h, which states that EDDM for the outflow rate of 0.02 h-1 can be estimated from the DMD measurements taken at the end of 16 h (p<0.01). The determination coefficients were calculated as 92.7 and 97.9% for outflow rates of 0.05 and 0.08 h-1, respectively, indicating that EDDM for 0.05 and 0.08 h-1 would be predicted from the DMD measured at the end of 8 h incubation time.
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