A. Karimi, A. Samie, J. Pourreza,
Volume 5, Issue 2 (7-2001)
Abstract
This experiment was carried out to study the effects of supplemental Cu (0, 100 and 200 mg/kg) and vitamin C (0, 400 and 800 mg/kg) on cholesterol and other blood components in broiler chicks. A total of 360-day-old chicks in a completely randomized block design in a factorial arrangement were used. At 56 days of age one male and one female from each pen were selected, slaughtered and blood samples were collected at slaughtering time for further analysis. After separation of serum, cholesterol, fat components, Cu and vitamin C contents of serum were measured using the relevant methods.
Copper, vitamin C, cholesterol, LDL and HDL of serum were significantly (P<0.05) affected by vitamin C and Cu supplementation. Hematocrit and mortality were not significantly affected.
Y. Ebrahim Nejad, J. Pourreza,
Volume 5, Issue 4 (1-2002)
Abstract
This experiment was carried out to study the effect of ionophore drugs (Salinomycin, Lasalocid and their combinations) on the performance of broiler chicks. Also their relationships with methionine (three levels) were evaluated. 1215 one-day-old commercial broiler chicks (Arian) were divided into 81 groups, 15 chicks per group, and tested in a completely randomized design with a 3×3×3 factorial experiment. Three drug types with three levels (0.0, the recommended level and 1.5 times the recommended level) of drugs and three levels (0.0, 0.1% and 0.2%) of supplemental methionine were used.
The results indicated that the effect of sex on plasma cholesterol and triglyceride, percentage of bone ash and percentage of abdominal fat was significant (P<0.0l). Drug type had no effect on the characteristics under study. Drug level influenced percentage of bone ash, percentage of eviscerated carcass, and percentage of abdominal fat significantly (P<0.0l), (P<0.01) and (P<0.00l), respectively. Also methionine level influenced cholesterol and triglyceride (P<0.0l) significantly. Interaction effect of drug type and drug level on plasma cholesterol and triglyceride was significant (P<0.05). Interaction effect of drug and methionine level on cholesterol and triglyceride was significant (P<0.0l). The results showed that levels of this drug influenced carcass composition and also supplemental methionine had no influence on the modulating effect of these drugs on carcass composition.
A. Zare Shahneh, H. Sadeghi Panah,
Volume 8, Issue 4 (1-2005)
Abstract
In order to determine the effects of fetal growth rate on plasma concentrations of glucose, triglyceride, total protein, and urea in ewes, this experiment was conducted at Animal Research Station of Tehran University Agricultural College. Sixteen pregnant Varamini ewes were allocated to 4 groups (n=4). During the breeding season, ewes of group 1 were mated by Varamini ram, animals in groups 2, 3 and 4 were mated by Moghani, Afshari and Shall rams, respectively. Because of the different genetic capacities of sires, fetal growth rate was expected to be different in various groups. Ewes in all groups were fed the same ration, so it was expected that differences in fetal growth rates would affect the mobilization of maternal fat and protein storage and blood levels of their metabolites. Blood samples were collected from jugular veins of ewes during the last 8 weeks of pregnancy and first week after lambing.
Plasma levels of glucose, cholestrol, and triglycerid were not different among 4 groups. Total plasma protein in ewes carrying heavier fetuses was lower than in ewes with lighter fetuses (p<0.05). Conversely, plasma urea concentrations in ewes with heavier fetuses were higher than in ewes with lighter fetuses.
