Browsing by Author "Ebrahimnezhad, Yahya"
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Item The effects of different diet total volatile nitrogen levels on blood biochemical parameters in broilers(Uludağ Üniversitesi, 2016-02-17) Ghasemi-Sadabadi, Mohammad; Ebrahimnezhad, Yahya; Eshratkhah, Behrad; Maheri-Sis, NaserA study was conducted to determine the effects of different diet total volatile nitrogen levels on blood biochemical parameters in broilers. A total of 320 one day old, Ross 308 broiler chicks, were randomly allocated to one of the 20 floor pens in a completely randomized design with five treatments and four replicate groups and sixteen chicks in each group. The aim of using different levels of urea in this study due to created various levels of total volatile nitrogen in the diet. Dietary treatments consisted five different levels of urea including zero (control), 0.5, 1, 1.5 and 2 percentages of urea in the diets. The total content of volatile nitrogen (TVN) measured after adding different levels of urea in diet and found as 13.30, 14.95, 17.26, 23.26 and 27.47 mg per 100 g respectively in starter diets and 16.66, 15.02, 17.81, 24.66 and 26.25 TVN mg per 100 g growing diets, respectively. The chicks were fed without adding urea during the first week. At 42 days of age, four chickens (two male and two female) from each pen were selected and blood samples collected from taken wing vein. Glucose, triglyceride (TG), cholesterol, low density lipoprotein (LDL), high density lipoprotein (HDL), phosphorus, calcium, albumin, total protein, globulin, uric acid and urea were measured. The results indicated that high level of total volatile nitrogen in diet significantly increased blood urea, uric acid, TG, cholesterol, LDL, phosphorus, total protein and globulin levels, while significantly decreased blood glucose level in our study (P<0.05). In conclusion, the results of this study concluded that, increasing TVN in diet had deleterious effect on blood biochemical parameters in broilers.Item The effects of ıntramuscular ınjections of vitamin b12 on production performance of dairy cows in early lactation fed dietary supplements of rumen-protected methionine(Uludağ Üniversitesi, 2016-04-08) Safarkhanlou, Morteza; Maheri-Sis, Naser; Ebrahimnezhad, Yahya; Salamatdoust Nobar, RaminTo study the effects of rumen-protected methionine and vitamin B12 as well as their interactions on production performance of dairy cows in early lactation, 16 Holstein cows in early lactation in experiment with randomized complete block design with the 2×2 factorial arrangement used for 42 days. In this experiment, there were four treatments, which in each treatment is placed two cows primiparous and two cows multiparous. Treatments included: 1) The group receiving the basal diet, 2) The group receiving the basal diet with vitamin B12 injections, 3) The group receiving the basal diet with rumen-protected methionine, 4) The group receiving the basal diet with vitamin B12 injections and rumen-protected methionine. The results showed that in the use of vitamin B12 and rumen protected methionine, there is no significant difference between the experimental groups in the dry matter intake, milk production, energy corrected milk, 4% fat corrected milk, fat, protein, lactose, solids, solids-non-fat and urea. Analysis of variance showed that the experimental unit in the second and sixth weeks of experiment there were statistically significant differences in dry matter intake. Use of vitamin B12 can increase the milk production in early lactation, but this increase was not significant and in the case of vitamin B12 associated with methionine this effect is more evident.