Mohammad Hossein nemati; Hassan Almasi; Reza Masomi; mohamad hossein shahir
Volume 23, Issue 3 , September 2021, , Pages 447-457
Abstract
In this research the effect of using domestic (Multibehcil) and imported (Bioplus B2) probiotic supplements and Avilamycin antibiotics were investigated on performance, parameters of blood lipid and small intestine morphology by a sample of 360 male Ross-308 broilers aging 11 to 42 days-old in a completely ...
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In this research the effect of using domestic (Multibehcil) and imported (Bioplus B2) probiotic supplements and Avilamycin antibiotics were investigated on performance, parameters of blood lipid and small intestine morphology by a sample of 360 male Ross-308 broilers aging 11 to 42 days-old in a completely randomized design with 6 treatments, 4 replications and 15 chickens per each replicate. Experimental treatments included 1) without additive (control), 2) diets containing 0.1% of commercial bioplus B2 probiotic, 3) diets containing 0.01% of avilamycin antibiotic and treatments 4) to 6) diets containing 0.05%, 1% and 0.15% of Multibehcil, respectively. The results showed that body weight and feed conversion ratio was improved by using bioplus B2 probiotic and antibiotic (P < 0.05). Body weight and feed conversion ratio in birds receiving 0.1% and 0.15% of Multibehcil were not significantly different from birds receiving bioplus probiotic. Feed intake was not affected by the experimental treatments. Humoral immune response and intestinal morphological parameters in birds receiving 0.15% of Multibehcil was not significantly different from the control group and it was statistically equal to the groups receiving bioplus probiotics and antibiotics. The LDL level of blood showed a significant decrease in Bioplus B2, antibiotic and 0.15% of Multibehcil treatments (P < 0.05). In general, the results indicated that using of Multibehcil at the level of 0.15 percent can be a suitable alternative for both Bioplus B2 and Avilamycin during grower and finisher period in broilers.
Mahsa Rasa Ezadi; Mohamad Salarmoini; Mohsen Afsharmanesh; Hadi Tavakoli; Mohammad khajeh Bami
Volume 21, Issue 4 , January 2020, , Pages 511-519
Abstract
Effect of different levels of hydroalcoholic extract of Allium hirtifolium and flavophospholipol antibiotic on growth performance, carcass characteristics, meat quality, and immune responses was studied using 200 day-old chickens, Ross 308 broilers with five treatments, four replicates and ...
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Effect of different levels of hydroalcoholic extract of Allium hirtifolium and flavophospholipol antibiotic on growth performance, carcass characteristics, meat quality, and immune responses was studied using 200 day-old chickens, Ross 308 broilers with five treatments, four replicates and 10 chickens per each replicate with completely randomized design. The experimental treatments were included basal diet withno additives (control group), and the basal diet containing hydroalcoholic extract of Allium hirtifolium (150, 300, 450 ml/kg diet) and flavophospholipol antibiotic (500 mg/kg diet). During the experimental period, birds fed with diet containing 450 ml/kg Allium hirtifolium extract had a higher weight gain than control birds (P<0.05). The effect of treatments on carcass characteristics was not significant. Themalondialdehyde value of legs muscles in birds fed with different levels of Allium hirtifolium extract was lower than the control group (p<0.05). The meat water holding capacity and drip loss in chickens fed with diet containing 450 ml per kg of Allium hirtifolium extract were higher and lower than birds receiving antibiotic respectively (p<0.05). The antibody titer against sheep red blood cells in chickens fed withdiet containing 450 ml per kg diet of Allium hirtifolium extract was higher than control birds or birds receiving antibiotic (p<0.05). According to the results of the present experiment, using 450 ml/kg diet of Allium hirtifolium extract could improve performance, meat quality and immune responses of broiler chickens, and can be used as a good replacement for antibiotic growth promoters.
vahed Ghasemloo; sayed abdoullah hosseini; hushang Lotfolahian
Volume 19, Issue 2 , August 2017, , Pages 467-478
Abstract
The aim of this experiment was to assess the effects of encapsulated oregano oil on microbial population, morphology, length and weight of different parts of digestive tract of Aryan broiler chicks. A total of 625 Arian broiler chicks were used in a completely randomized trail with 5 treatments and 5 ...
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The aim of this experiment was to assess the effects of encapsulated oregano oil on microbial population, morphology, length and weight of different parts of digestive tract of Aryan broiler chicks. A total of 625 Arian broiler chicks were used in a completely randomized trail with 5 treatments and 5 replicates at the age of 1 to 42 days. Treatments were including: 1- basal diet (negative control), 2- basal diet+probiotic (0.1 g Protexin/kg), 3- basal diet+antibiotic (0.15g Avilamycin/kg), 4- basal diet+oregano oil (0.2 g/kg) and 5- basal diet+encapsulated oregano oil (1 g/kg). The results showed that broiler performance at the end of 42 days were not affected by treatments (p<0.05). The highest lactobacillillus colony numbers were observed in encapsulated oregano oil. The length of duodenum in probiotics group were lower than others groups (p<0.05). The length and weight of other parts of digestive tract except ileum weight were not affected by dietary treatments (p>0.05). Finally, according to result of intestinal microbial count, it seems that encapsulated oregano essential oil can improve the intestine microbial population and bird's health.
farid shariatmadari
Volume 19, Issue 2 , August 2017, , Pages 479-491
Abstract
In this study, the effect of fat source and type of growth promoting additives in laying hens diets on productive performance and egg quality traits was investigated. In a (2×3) factorial experiment,108 ninety-six week-old Hy-Line W-36 laying hens treated with 2 fat sources (vegtable fat - yellow ...
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In this study, the effect of fat source and type of growth promoting additives in laying hens diets on productive performance and egg quality traits was investigated. In a (2×3) factorial experiment,108 ninety-six week-old Hy-Line W-36 laying hens treated with 2 fat sources (vegtable fat - yellow grease and fat powder) and 3 types of growth promoting additives (none-additive,probiotic and antibiotic) for 12 weeks.The birds were allocated randomly in six treatments with six replicates (3 birds per replicat). Results showed that None of the performance variables (egg production rate, egg mass, average egg weight, feed intake and feed conversion ratio) were affected by the supplemental fat sources (P> 0.05). The addition of probiotic in feed resulted in significant reductions in feed intake, egg production and egg mass as well as in yolk percent (P< 0.05). Interactions between fat source and growth promoting additive type as well as the main effect of fat type on Egg shell thickness were significant. Thus, it could be suggested that the use of the fat sources and growth promoting additives in layer diets as a potential solution to prevent the egg shell quality problems during the late stages of production; however supplemental probiotic reduced feed intake, egg production and egg mass.
Meisam Tamizi Jooneghani; Shokoufe Ghazanfari; Alireza Aghashahi; Seyed Davood Sharifi; Seyyed Abdollah Hosseini
Volume 18, Issue 3 , October 2016, , Pages 501-512
Abstract
This study was carried out to investigate the effects of Humulus lupulus essential oils as an alternative to antibiotic and antioxidant on productive performance, lipids stability of meat and ileum microbial population in broiler chickens during days 1 to 42 of age. A total of 625 day-old Arian broiler ...
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This study was carried out to investigate the effects of Humulus lupulus essential oils as an alternative to antibiotic and antioxidant on productive performance, lipids stability of meat and ileum microbial population in broiler chickens during days 1 to 42 of age. A total of 625 day-old Arian broiler chicks were used in a completely randomized design with five treatments (200 and 400 mg/kg Humulus lupulusessential oils, 100 mg/kg antibiotic avilamycin, 150 mg/kg protexin probiotic and control) and five replicates of 25 birds each. Broilers that were fed dietary Humulus lupulus oil at level of 400 mg/kg and antibiotic revealed higher feed intake than broilers fed dietary Humulus lupulusoil at level of 200 mg/kg (P<0.05). Dietary Humulus lupulus oil at level of 200 mg/kg and probiotic had best production index compared with Humulus lupulus oil at level of 400 mg/kg treatment (P<0.05). The Humulus lupulus oils (200 and 400 mg/kg) treatments showed lower thigh muscles malondialdehyde concentration compared with antibiotic and probiotic treatments as well as control group (P<0.01). Broilers were fed dietary 400 mg/kg Humulus lupulus oil had highest lactobacillus count of the ileum compared with other treatments (P<0.05). Dietary Humulus lupulus oil at level of 200 mg/kg improved broiler productive performance, however improvement of ileum microbial population and meat quality were observed when 400 mg/kg dietary Humulus lupulus oil was applied.
Daryush Khademi Shurmasti; Farid Shariatmadari; Mohammad Amir Karimi Torshizi; Houshang Lotfollahian
Volume 17, Issue 2 , October 2015, , Pages 211-221
Abstract
The present study was carried out to evaluate the effects of vegetable fat sources and additives on performance and morphological parameters of the small intestine of Arain broiler chickens. Birds were randomly used in a 2×3 factorial arrangement of dietary treatments included two fat sources (canola ...
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The present study was carried out to evaluate the effects of vegetable fat sources and additives on performance and morphological parameters of the small intestine of Arain broiler chickens. Birds were randomly used in a 2×3 factorial arrangement of dietary treatments included two fat sources (canola or pumpkin seed) and three additives (without additive, 0.1 g/kg probiotic and 0.15 g/kg virginamycin) with four pen replicates and 20 birds per each. The growth performance and productive traits, with using of neither additives nor fat sources or fat sources × additives were unaffected. However, probiotic was significantly decreased crypt depth and increased villi height to crypt depth ratio in jejunum and ileum (P<0.01). Likewise, the highest of villi height and villi height to crypt depth ratio in jejunum and ileum especially was obtained with combination of pumpkin seed oil and probiotic (P<0.05). Crypt depth, villi thickness and surface area was higher in duodenum of broilers were fed with pumpkin seed oil (P<0.05).Thus, probiotic bactocell can be used in diets contain linoleic-oleic (pumpkin seed oil) and linolenic (canola oil) fat groups without negative effect on performance and productive traits.
Hassan Shirzadi; Farid Fhariatmadari; Mohammad Amir Karimi-Torshizi; Shaban Rahimi; Ali Akbar Masoudi
Volume 17, Issue 1 , April 2015, , Pages 151-160
Abstract
A study was carried out to evaluate the effects of R. coriaria L. and P. farcta extracts as alternatives to antibiotic growth promoters in broilers diet. A total of 300 one-day-old male Ross 308 chicks were randomly allocated to four dietary treatments (five pen replicates, 15 birds per pen) for the ...
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A study was carried out to evaluate the effects of R. coriaria L. and P. farcta extracts as alternatives to antibiotic growth promoters in broilers diet. A total of 300 one-day-old male Ross 308 chicks were randomly allocated to four dietary treatments (five pen replicates, 15 birds per pen) for the 0- to 28-d period, and all data were analyzed in a randomized complete design. Dietary treatments included a basal diet (as control diet, without additive) and three similar diets that were supplemented with 200 mg/kg R. coriaria L. extract, P. farcta extract, and oxytetracycline 20 percent, respectively. The results showed that average daily gain was significantly increased (P<0.05) by supplementing diets with all feed additives in 7-14 d period and entire (0-28 d). Broilers fed the diets supplemented with each of extracts had a low serum cholesterol levels as compared to control diet (P<0.05). Moreover, the antibody titer against Newcastle disease virus was significantly increased by supplemented diets (P<0.05). However, adding feed additive to diets had no significant effect on antibody titer against SRBC, skin thickness due to DNCB challenge and toe-web thickness in response to injection of phytohemagglutinin-P. In addition, supplementing diet with P. farcta caused to a significant increase in relative bursa of fabricius weight in contrast with control diet. Based on current results, it can be concluded that R. coriaria and P. farcta extracts can be used as alternatives to oxytetracycline as a growth promoter in broilers diet.
Seyd Davoud Sharifi; Amin Dibamehr; Houshang Lotfollahian
Volume 13, Issue 1 , September 2011, , Pages 7-16
Abstract
The effects of probiotics and antibiotics and fat type in diet on broiler performance were studied by using 900 one-day old Ross 308 chicks in a three × three factorial arrangement with three types of fat (nonfat, three percent fatty acid and three percent soy oil) and three growth promoters (without ...
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The effects of probiotics and antibiotics and fat type in diet on broiler performance were studied by using 900 one-day old Ross 308 chicks in a three × three factorial arrangement with three types of fat (nonfat, three percent fatty acid and three percent soy oil) and three growth promoters (without GP, flavomycin and protexin) in completely randomized design with four replicates per each treatment. Fat and its type had significant effects on weight gain and the body weight gain of birds fed diets containing soy oil were better (P< 0.05). Dietary flavomycin supplementation improved weight gain and FCR (P< 0.05). The fat type × growth promoter’s interaction influenced broiler performance, significantly (P< 0.05). Birds fed on diets containing soy oil and flavomycin showed the highest feed intake and weight gain, whereas, the lowest feed intake and weight gain was belonged to birds fed diets containing fat and protexin (P< 0.05). From the results obtained, it can be indicated that addition of protexin to diets containing fat has negative effect on broiler growth performance.
Seyed Davoud Sharifi; Ehsan Tavazoei; Ali Akbar Khadem; Abbas Barin
Volume 12, Issue 2 , October 2010, , Pages 11-20
Abstract
In this study, the effect of different levels of fat with antibiotics and probiotics on blood biochemical traits and performance of broiler chicks was investigated. In a factorial experiment, 288 Day-old Ross broiler chicks treated with two level of fat (3 and 6 percent) and three additives (Flavomycin, ...
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In this study, the effect of different levels of fat with antibiotics and probiotics on blood biochemical traits and performance of broiler chicks was investigated. In a factorial experiment, 288 Day-old Ross broiler chicks treated with two level of fat (3 and 6 percent) and three additives (Flavomycin, Protexin and none-additive). The birds were allocated randomly in six treatments with four replicates and 12 birds per replicat. Results showed that the chicks fed on diets containing 3 percent of fat + Flavomycin had higher feed intake and body weight gain compared to birds fed with fat + Protexin (P< 0.05). The concentration of cholesterol, HDL and LDL in serum of birds of 6% fat was more than of those fed diets with 3% fat. Birds fed diets containing protexin had lowest cholesterol, HDL and LDL (P< 0.05). It was concluded that supplementing the rations containing fat with probiotics decrease feed intake and body weight gain in broilers chicks and their performance decrease by increasing fat in diets.