Zeinab Shohoudi; Majid Mottaghitalab; Mostafa Golshekan
Abstract
Polyphenols content in the grape seed are considered as potent aromatase inhibitors. In this study, the grape seed extract was injected into the egg as an anti-aromatase and its effects on sex differentiation and gonadal structure in broiler chicks were investigated. A total of seven hundred eggs from ...
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Polyphenols content in the grape seed are considered as potent aromatase inhibitors. In this study, the grape seed extract was injected into the egg as an anti-aromatase and its effects on sex differentiation and gonadal structure in broiler chicks were investigated. A total of seven hundred eggs from Ross 308 were divided into 7 experiment groups. Treatments including: injection of 3(GSE3) and 4(GSE4) milligrams of grape seed extract and zinc, 3 (NGSE3) and 4(NGSE4) milligrams of nanoparticle of grape seed extract and zinc, 0.05 mg tamoxifen and zinc (TOM+Zn), 0.5 ml normal saline (PC) and control with no injection (NC). Injection was performed on day 5 of incubation from the narrow side of egg. After hatch, chickens were reared for 5 weeks. Results showed that compared to controls, injection of grape seed extract caused significant increase in percentage of male chick(P<0.05). No significant differences were found in day old chick weights (P>0.05). Feed intake, body weight, body weight gain and feed conversion ratio appeared with no significant differences (P>0.05). The study of gonadal structure in chicks indicated a high degree of sexual reversal in chicken treated with 3(NGSE3) and 4(NGSE4) mg of nanoparticles of grape seed extract and zinc. Conclusion is that the grape seed extract has the potential to act as an anti-aromatase compound to produce higher percentage of male broiler chicks.
Mohammad Khajeh Bami; Mohsen Afsharmanesh
Abstract
This experiment was conducted to study the effect of zinc oxid nanoparticle and probiotic on performance, microbial population and blood parameters in broiler chickens (Ross 308). The experimental was done in a completely randomized design with 6 treatments, 4 replications and 12 chickens in each replication ...
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This experiment was conducted to study the effect of zinc oxid nanoparticle and probiotic on performance, microbial population and blood parameters in broiler chickens (Ross 308). The experimental was done in a completely randomized design with 6 treatments, 4 replications and 12 chickens in each replication (288 chicks). The experimental treatments were 1) control diet with standard zinc oxid (100 mg/kg) 2) control diet plus 100 mg/kg probiotic, 3,4) basal diet plus 25 and 50 mg/kg zinc oxid nanoparticle, 5,6) basal diet plus 25 and 50 mg/kg zinc oxid nanoparticle plus probiotic. In the whole of experimental period, the using zinc oxid nanoparticle with probiotic significantly improved body weight and FCR compare to control group (P<0.05). The colony counts of coliform and lactobacillus bacteria in chickens fed with 50 mg/kg zinc oxid nanoparticle along with probiotic were significantly lower and higher than control group respectivily (P<0.05). Total protein and albumin in serum of chickens which received 50 mg/kg zinc oxid nanoparticle along with probiotic were significantly higher compare to control (P<0.05). In conclusion, zinc oxid nanoparticle with probiotic caused an improvement in performance parameters and count of benefit microbial bacteria.
Masoumeh Gholami; Abolghasem Golian; Hasan Kermanshahi; Saeed Zerehdaran
Abstract
This study was conducted to evaluate the relative bioavailability value of Mn proteinate and Mn oxide in broiler chicks. A total of 432 day-old Cobb 500 commercial male broiler chicks were randomly distributed into nine treatments with eight replicate pens of six chicks each. In a completely randomized ...
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This study was conducted to evaluate the relative bioavailability value of Mn proteinate and Mn oxide in broiler chicks. A total of 432 day-old Cobb 500 commercial male broiler chicks were randomly distributed into nine treatments with eight replicate pens of six chicks each. In a completely randomized design experiment with a 2×4 factorial arrangement of two manganese sources (proteinate and reagent grade of oxide) with four levels of supplemental manganese (35, 70, 105 and 140 mg/kg diet) was provided by the use of a basal diet (control). Diets were fed from day one to 21 d of age. Manganese sources did not affect feed intake, body weight gain and feed conversion ratio (FCR), but body weight gain and FCR had a quadratic relationship with supplemental dietary Mn level. Tibia, kidney and liver manganese concentrations increased linearly, with increasing dietary Mn level. Tissue Mn analysis indicated that the tibia response to dietary Mn level was the greatest, followed by kidney and liver organs. The slope ratio regression analysis for tibia manganese content with supplemental manganese level revealed that the relative bioavailability value of manganese proteinate to Mn oxide was 101.7%. Thus, the relative bioavailability of Mn proteinate and Mn oxide was almost similar in this study.
Mohamad Reza Gangeh; Mohammad Salarmoini
Abstract
The study was conducted to evaluate the effect of using powder and hydroalcoholic extract of Carum copticum on growth performance, blood parameters, relative weight of internal organs, intestinal microflora, intestinal histomorphology and meat quality in broilers in comparison to Virginiamycin antibiotic. ...
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The study was conducted to evaluate the effect of using powder and hydroalcoholic extract of Carum copticum on growth performance, blood parameters, relative weight of internal organs, intestinal microflora, intestinal histomorphology and meat quality in broilers in comparison to Virginiamycin antibiotic. The experiment was conducted in a completely randomized design with 8 treatments, 3 replicates and 12 birds in each replicates. Experimental treatments consisted of control diet (without any additives), antibiotic virginiamycin (100 mg/kg), Carum copticum powder (1, 2 and 3%) and Carum copticum extract (150, 250 and 350 mg/kg). Based on the results, in 1-42 d period, supplementing diets with virginiamycin, 1% powder and 350 mg/kg extract improved body weight gain and FCR. Blood parameters and the relative weight of carcass components (back, heart, liver, abdominal fat, gizzard, and pancreas) were not significantly affected by the treatments. Using 1% powder and different levels of the extract reduced the coliform bacteria population in the small intestine in compare to the control. Different levels of powder significantly increased villus height and crypt depth in compare to the control and virginiamycin treatments. Supplementing diets with 1 or 2% powder and different levels of theextract significantly reduced TBA. In conclusion, Carum copticum powder (1%) and extract (350 mg/kg) can be used as a good alternative to replace with growth promoters antibiotics.
Seyed Naser Mousavi; Mahmoud Shivazad; Mohammad Chamani; Housahang Lotfolahian; Ali Asghar Sadeghi
Volume 42, Issue 2 , October 2011, , Pages 153-160
Abstract
In this research 400 Ross 308 breeder fertile eggs were weighed At day 16 of incubation and evenly distributed into 4 treatments with 4 replicates per treatment and 25 eggs per replicate in a CRD design. On day 18 of incubation, 1 ml of an in ovo feed solution including: I) Carbohydrate (CHO), II) Amino ...
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In this research 400 Ross 308 breeder fertile eggs were weighed At day 16 of incubation and evenly distributed into 4 treatments with 4 replicates per treatment and 25 eggs per replicate in a CRD design. On day 18 of incubation, 1 ml of an in ovo feed solution including: I) Carbohydrate (CHO), II) Amino acid (AA), and III) Butyric acid solution in 0.5% saline was injected into amniotic fluid of eggs. The control group remained non-injected. After injection eggs were transferred to hatcher. Upon hatch, chicks were weighed, sexed and transferred to the experimental house and reared to 42 days. At day two the midpoint of the jejunum was sampled for intestinal morphometric examination. The hatchability didn't differ significantly between treatments. Body weight and body weight to egg weight ratio of all in ovo injected hatchlings was greater than in controls (P
Maziyar Moghaddam tabrizi; Mohammad Salar Moeini
Volume 42, Issue 1 , July 2011, , Pages 29-38
Abstract
The present study was conducted to determine the effects of different levels of rice bran along with a multi enzyme on the performance of broiler chicks. Three hundred eighty four day-old male broiler chicks were taken in 8 treatments comprised of different levels of rice bran (0, 6, 12 and 18%) together ...
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The present study was conducted to determine the effects of different levels of rice bran along with a multi enzyme on the performance of broiler chicks. Three hundred eighty four day-old male broiler chicks were taken in 8 treatments comprised of different levels of rice bran (0, 6, 12 and 18%) together with a multi enzyme (0 and 0.1%). Each treatment was carried out in 4 replicates each replicate comprised of 12 chicks. The experiment was a factorial one done in the framework of a completely randomized design. Increasing the level of rice bran in the diets decreased the chicks' body weight as well as weight gain while increasing feed conversion ratio in them. Feed intake and blood factors were not affected by different treatments (P>0.05). Weights of gizzard, liver, small intestine as well as ceca were affected by inclusion of rice bran. There were no significant effects of enzyme supplementation observed on broilers' performance, but there were significant effects observed on abdominal fat, blood glucose and triglycerides. No significant effect of total feed cost/Kg of body weight was observed between treatments.
Ali-asghar Saki; Sara Mirzaei Goudarzi; Shahab Ghazi; Mohammad Mehdi Moeini; Fatemeh Sahebi Ala
Volume 42, Issue 3 , January 2011, , Pages 275-283
Abstract
This experiment was carried out for a determination of metabolizable energy and the effect of the Grind multienzyme on in-vitro dry matter and protein digestibility in diets, and as well on performance of broiler chicks. A number of 800 day old unsexed Arbor Acres broilers were placed in 8 treatments ...
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This experiment was carried out for a determination of metabolizable energy and the effect of the Grind multienzyme on in-vitro dry matter and protein digestibility in diets, and as well on performance of broiler chicks. A number of 800 day old unsexed Arbor Acres broilers were placed in 8 treatments and 4 replicates (25 chicks each). A completely Randomized Design (CRD) of a factorial arrangement (4×2), along with 4 levels of barley (0, 10, 20 and 30%) and 2 levels of enzyme, (0 and 500 g/ton) were modulated for a duration of 42 days. Apparent Metabolizable Energy (AME), the same factor (AME) corrected by nitrogen (AMEn), True Metabolizable Energy (TME), and true metabolizable energy corrected by nitrogen (TMEn) as well as digestibility of barley protein (based on dry matter) were recorded as 2886.6, 3015.8, 3624.2, 3205.5 kcal/kg and 57.95% respectively. Feed intake rate, in control treatment (2776.66g), was significantly (p
Alireza Safamehr; Mohamad Bahaodin Shams Borhan; Mohamad Hosein Shahir
Volume 41, Issue 1 , May 2010
Abstract
This experiment was carried out to study effect of supplementary multi enzyme (0, 4 gr per 100 kg of diet) to corn-soybean meal based diets with different levels of Tomato Pomace (TP, 0, 2, 4, 6 and 8 %, respectively) on chick performance and carcass traits. Four hundred and eighty 480 day-old chicks ...
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This experiment was carried out to study effect of supplementary multi enzyme (0, 4 gr per 100 kg of diet) to corn-soybean meal based diets with different levels of Tomato Pomace (TP, 0, 2, 4, 6 and 8 %, respectively) on chick performance and carcass traits. Four hundred and eighty 480 day-old chicks (Ross-308) were employed [four replicates (n=20)] in a completely randomized experimental design of a factorial arrangement of 2×5. The results revealed that in starter stage the addition of 6% TP to diet significantly decreased weight gain in comparison with control. Feed intake and conversion ratio were greater (p
alireza hesabi nameghi; hassan nasiri moghaddam; jalil tavakol afshari
Volume 39, Issue 1 , February 2009
Abstract
To evaluate the effect of supplemental vitamin C (VC) levels on performance and immune response of broiler chicks, 300 day-old Ross male broiler chicks were allocated to a completly randomized design of 5 treatments(500 and 1000 ppm in diet, 500 and 1000 ppm in drinking water and control). Immunity ...
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To evaluate the effect of supplemental vitamin C (VC) levels on performance and immune response of broiler chicks, 300 day-old Ross male broiler chicks were allocated to a completly randomized design of 5 treatments(500 and 1000 ppm in diet, 500 and 1000 ppm in drinking water and control). Immunity was assessed as antibody production against Infectious Bronchitis Virus (IBV) and Newcastle Disease Virus (NDV), mitogenic response to PhytohemagglutininA (PHA) and concanavalin A (conA), Cutaneous Basophil Hypersensitivity (CBH) to PHA. Vitamin C ( 500 and 1000 ppm in drinking water and 1000 ppm in diets) increased (P
