Tahereh Mersadi-Sabet-Kordmahale; Maziar Mohiti-Asli; Hassan Darmani-Kuhi
Volume 21, Issue 4 , January 2020, , Pages 521-531
Abstract
This experiment was carried out to investigate the effect of different inclusion levels of free and microencapsulated essential oil of Ajowan (EOA) herb in broilers diet on growth performance and some ileal bacteria population. A total of 320 one-day-old chicks were distributed in a completely ...
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This experiment was carried out to investigate the effect of different inclusion levels of free and microencapsulated essential oil of Ajowan (EOA) herb in broilers diet on growth performance and some ileal bacteria population. A total of 320 one-day-old chicks were distributed in a completely randomized design with 2×4 factorial arrangement. The dietary factors were 2 different forms of EOA (free and encapsulated) and 4 dietary inclusion levels of EOA (0, 50, 100 and 150 mg/kg). Growth performance parameters were recorded throughout the experiment, and intestinal organs weight and ileal microbial population were measured on 42 day of age. Broilers fed encapsulated EOA in diet had higher body weight gain and lower feed conversion ratio during 1 to 21 day of age than those fed free EOA (P<0.05). Higher relative weight of liver (% of live weight) was achieved in broilers fed diets supplemented with encapsulated EOA (P<0.05). There was a significant interaction between the form and dietary levels of EOA on E. coli count (P<0.05). As a general conclusion, use of encapsulated EOA led to an improvement in body weight gain, FCR, and European Production Index, in the first three weeks of growth and in the whole period of growth phase, respectively.
Maziar Mohiti-Asli; Moein Ghanaatparast-Rashti
Volume 17, Issue 2 , October 2015, , Pages 223-233
Abstract
An experiment was conducted to determine of the effects of vitamin E and C supplementation in diet based on different source of oils on performance and serum parameters of broilers. A total of 320 broiler chicks (Strain Ross 308) used in a 2×2×2 factorial arrangement in the form of completely ...
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An experiment was conducted to determine of the effects of vitamin E and C supplementation in diet based on different source of oils on performance and serum parameters of broilers. A total of 320 broiler chicks (Strain Ross 308) used in a 2×2×2 factorial arrangement in the form of completely randomized design with eight treatments, four replicates and 10 chicks in each replicate. Experimental factors included: two different oil sources (soybean and canola), two levels of vitamin E (zero and 200 mg/kg), and two levels of vitamin C (0 and 1000 mg/kg). Oil sources and vitamin E and C had no effect on performance of broilers. Supplementation of vitamin E or C increased serum total cholesterol and HDL (P<0.05). Source of oil had no significant effect on glucose and total serum cholesterol. Broilers fed diet containing canola oil had higher HDL and lower serum malondialdehyde than those fed diets with soybean oil (P<0.01). Supplementation of vitamin C to the diets containing canola oil decreased serum triglyceride compared with diets include soybean oil and vitamin C (P<0.05). Supplementation of vitamin E decreased serum malondialdehyde and increased activity of glutathione peroxidase (P<0.05). Results of this study indicate that dietary supplementation of canola oil, vitamin C or E to broiler diet increased serum HDL and vitamin E decreased oxidation of serum lipids by improving antioxidant system.
Hassan Safari; Ardeshir Mohit; Maziar Mohiti Asli
Volume 17, Issue 2 , October 2015, , Pages 257-267
Abstract
The effect of different levels of dried purslane powder (DPP) in broiler diets on performance, immune response and some of blood factors was studied with 160 one day old chicken Ross 308 in a completely randomized design with four treatments (diets included with levels zero (control), 2.5, 5 and 7.5 ...
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The effect of different levels of dried purslane powder (DPP) in broiler diets on performance, immune response and some of blood factors was studied with 160 one day old chicken Ross 308 in a completely randomized design with four treatments (diets included with levels zero (control), 2.5, 5 and 7.5 percent DPP), four replicates and 10 chicks in each replication. At 22-42 and 1-42 days different level of DPP resulted in a significant increase in the daily body weight gain and daily feed intake. Birds that were fed with five and 7.5 percent of DPP have a better feed conversion ratio compare with the control group (P<0.05). The minimum content of blood cholesterol and triglyceride was observed in birds that were fed with five and 7.5 percent DDP, respectively. DPP did not affect cellular immune response to PHA-P and antibody response to Newcastle vaccine. The total anti-SRBC titer, IgG and IgM in birds were fed with diet containing five percent DDP was significantly higher than compare with the control group on day 35 (P<0.05). The results of this experiment show that adding five percent DPP in broiler diet led to improve performance and also reduced in cholesterol and triglyceride content and improve the humoral immune.