Majid mottaghitalab; Minoo Mirzavandi Chegeni; Seyed Hossein Hhosseini moghadam; Mostafa Golshekan
Abstract
In order to investigate the effects of in ovo injection of different sources of manganese on performance and tibia characteristics of broilers, a total of 480 fertile eggs from ROSS 308 were assigned to 6 treatments, 4 replicates of 20 eggs per replicate in a completely randomized design. The experimental ...
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In order to investigate the effects of in ovo injection of different sources of manganese on performance and tibia characteristics of broilers, a total of 480 fertile eggs from ROSS 308 were assigned to 6 treatments, 4 replicates of 20 eggs per replicate in a completely randomized design. The experimental treatments included non-injected (negative control, NC), injection of1 ml serum physiology(positive control, PC), 1 ml of manganese sulfate (MnS), 1 ml of manganese- methionine (MnM), 1 ml of nano manganese (NMn) and 1 ml of nano manganese methionine (NMnM). The results showed that the in ovo injection of different sources of manganese lead to improvement in broilers growth. The highest and lowest body weight gain in entire production period were recorded for NMn and PC group, respectively (P<0.05). NMn and NMnM groups showed the best feed conversion ratio in whole experimental period (P<0.05). The tibia length at 21 day of age was significantly higher in treatment containing MnS and fresh and dry weights of tibia at 21 and 42 days of age were significantly increased with NMn (P<0.05). The tibia breaking strength at 21 and 42 days of age was significantly increased in treatments containing NMnM and NMn (P<0.05). The tibia volume, density and ash percentage were not affected by experimental treatments on 21 and 42 days of age (P>0.05). According to these results, it seems that the in ovo injection of manganese nanoparticles as a feed additive has positive effects on performance and tibia characteristics of broilers.
Farideh Abdolalizadeh Alvanegh; Marziyeh Ebrahimi; Hossein Daghigh Kia
Abstract
The aim of this research was to evaluate the effect of in ovo injection of different ratios of L- arginine to L- lysine on body growth, muscle production and blood metabolites concentration of day old Ross broilers chicks. A total of 210 fertile Ross 308 broiler breeder eggs were used in a completely ...
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The aim of this research was to evaluate the effect of in ovo injection of different ratios of L- arginine to L- lysine on body growth, muscle production and blood metabolites concentration of day old Ross broilers chicks. A total of 210 fertile Ross 308 broiler breeder eggs were used in a completely randomized design with seven experimental groups of 30 individual eggs in each treatment. The experimental treatments included: sham-control (sterile distilled water injected), control (non-injected), and injection of solutions with 75.7, 80.7, 85.7, 90.7 and 95.7 percent L-arginine to L-lysine ratios. On hatching, the chicks were weighed and their blood samples were collected. Then, chicks were euthanized and their carcass traits were weighed. According to the results of this study, the maximum hatchability percentage was observed in 90.7 percent of L- arginine to L- lysine ratio. The results also showed that the in ovo injection of different L- arginine to L- lysine ratio up to 90.7 percent resulted in significant increase in chick weight (P< 0.01), relative weight of scalped carcass (P< 0.01), carcass efficiency (P<0.01), thigh relative weight (P< 0.05), breast muscle relative weight (P< 0.01) and relative weight of liver (P< 0.05), whereas blood plasma urea concentration was significantly (P< 0.05) decreased. In overall, results indicated that in ovo injection of 90.7% L-arginine to L-lysine ratio is an advisable ratio for improving muscle growth, blood serum metabolite concentrations, and hatchability percentage of broilers.
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
