5 articles for “Starter Phase”

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Research ArticleOpen accessIn the keywordsGrowth Performance and Duodenal Morphometry of 1-6 Week Old Kampung Chickens Supplemented With L-LeucineCharles Venirius Lisnahan, Steffanie Merlin Clyricia Noach, Lukas Pardosi, Theresia Nur Indah KoniThis study evaluated the effects of dietary L-leucine supplementation on growth performance and duodenal morphometry of Kampung chickens during the starter phase (1–6 weeks). A total of 600 one-week-old Kampung chickens were randomly assigned to five dietary treatments with six replicates of 20 birds each in a completely randomized design. The treatments consisted of a basal diet without L-leucine (T0) … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 3 · 11 Sep 2026 · 904 accessesView PDF Cite

Research ArticleOpen accessIn the abstractGrowth Performance and Blood Profiles of Indigenous Venda Chickens Under Intensive and Semi-Intensive Rearing SystemsBoasiako Oris Antwi, Ifeanyichukwu Princewill Ogbuewu, Christian Anayo MbajiorguA 91-day trial examined the impact of two production systems on crop content, growth performance, hematology, and blood chemistry of indigenous Venda chickens. One-day-old Venda chickens (n = 100) were randomly assigned to two treatments (T1 and T2) and replicated five times with 10 birds per replication. Venda chickens in each group were placed in five replicate pens, each having … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 1 · 12 Apr 2026 · 1,424 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffects of Supplemental Fat to Low Metabolizable Energy Diets on Cholesterol and Triglyceride Contents of Broiler MeatMansour Rezaei, Atena MonfarediProblem statement: Modern diets high in Saturated Fatty Acids (SFA) and low in Monounsaturated (MUFA) and Polyunsaturated (PUFA) fatty acids are mostly blamed for the increased incidence of cardiovascular diseases. Since dietary fatty acids are absorbed by monogastric animals and deposited in their tissues without significant modification, considerable potential exists for the manipulation of the fatty acid profile of poultry … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 8,019 accessesView PDF Cite

Research ArticleOpen accessIn the abstractChange in Growth Performance and Liver Function Enzymes of Broiler Chickens Challenged with Infectious Bursal Disease Virus to Dietary Supplementation of Methionine and ThreonineElham Maroufyan, Azhar Kasim, Seyed Reza Hashemi et al.Problem statement: The aim of this study was to verify the effects of methionine and threonine supplementations higher than the NRC recommendation on growth performance, liver function enzymes, blood parameters and immune tissues of broiler chickens challenged with infectious bursal disease. Approach: A total of 450 day-old male broiler chicks were assigned to nine groups. Chickens were fed by three … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 9,469 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffects of Reduced- Protein Diets at Constant Total Sulfur Amino Acids: Lysine Ratio on Pullet Development and Subsequent Laying Hen PerformanceFariborz Khajali, M. Faraji, Saeid Karimi DehkordiThe effect of using a low protein regime in pullet development and subsequent layer performance was studied. The experiment consisted of two periods of rearing and laying. Two hundred and sixty Hy-line W36 chicks were used. In the rearing period, dietary protein level and ME content series of the control group used during starter (18-42), grower (43-63) and developer (64-119d) … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 7,067 accessesView PDF Cite