Effect of metabolizable energy system and total amino database in practical feed formulation on growth performance in broiler chickens | ||
| علوم دامی | ||
| Article 4, Volume 31, Issue 119, September 2018, Pages 45-58 PDF (1.28 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/asj.2017.114703.1494 | ||
| Authors | ||
| khadijeh tayebi* 1; B Dastar2; mahmmud shams sharg3; farshid eshraghi4 | ||
| 1Department of Animal and Poultry Science, Faculty of Animal Science, Gorgan University of Agricultural Sciences and Natural Resources, Golestan , Iran | ||
| 2Professor,Faculty of Animal Science, Gorgan University of Agricultural Sciences and Natural Resources | ||
| 3Associate Professo Faculty of Animal Science, Gorgan University of Agricultural Sciences and Natural Resources | ||
| 4economical Agricultural ,Gorgan University of Agricultural Sciences and Natural Resources | ||
| Abstract | ||
| The effect of energy expression system and total amino acid database on growth performance, carcass components and litter quality of Ross 308 broilers strain was studied by 180 broiler chicks in a completely randomized design with a 2×3 factorial arrangement. This study was performed with six treatments, three replicates and ten broiler chicks in each replicate. Treatments expression was with two systems of energy (AMEn and TMEn) and three amino acid database (NRC, Evonik and Ajinomoto) in periods starter (1-10 days), grower and (11-24 days) finisher (25-42 days). Apparent metabolizable energy corrected for nitrogen in the dietary formulation caused a relative increase in feed intake and weight gain of broilers in the grower and whole period of experiment (1-42 days). Energy system had no significant effect on feed conversion ratio, protein and energy utilization, carcass components and litter quality (P>0.05). Evaluating feed conversion ratio, efficiency of energy and protein utilization, European production index during total experiment period showed that NRC and Evonik amino acid databases were significantly better than Ajinomoto (P<0.05). Based on the current results, it seems that NRC and Evonik amino acid databases, in the condition of current experiment have relatively some advantage compared to Ajinomoto database. | ||
| Keywords | ||
| Ajinomoto; Broiler chicken; Evonik; Metabolizable energy; NRC | ||
| References | ||
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