94 results for “poultry”

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Research ArticleOpen accessIn the abstractThe Effect of Methionine and Threonine Supplementations on Immune Responses of Broiler Chickens Challenged with Infectious Bursal DiseaseElham Maroufyan, Azhar Kasim, Seyed Reza Hashemi et al.Problem statement: The aim of this study was conducted to determine the effects of supplementing methionine and threonine higher than the National Research Council (NRC) recommendation in the diets on immune responses of broiler chickens challenged with Infectious Bursal Disease (IBD). Approach: A total of 450 day-old male broiler chicks were assigned to one of the nine dietary treatments. Three … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 8,844 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPotential, Implications and Solutions Regarding the Use of Rendered Animal Fats in AquafeedsJesse T. Trushenski, Rebecca T. LochmannProblem statement: In the past, aquafeeds were comprised largely of fish meal and fish oil derived from marine reduction fisheries. In addition to being highly palatable and readily digested by cultured fishes, these feedstuffs were historically inexpensive sources of protein, energy and essential nutrients. However, increasing cost and concerns over safety and sustainability have greatly incentivized the transition from fish … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 13,998 accessesView PDF Cite

Research ArticleOpen accessIn the abstractGenetic Capability of Young Layers for Survival after Salmonella entritidis ChallengeE. S. Soliman, H. Busby, C. Kilpatrick et al.Problem statement: Genetic line differences in resistance of layer hens and young chicks to Salmonella entritidis have been identified through a lot of studies. That is why the agricultural industry was prepared for the potential phasing out of antibiotics for use in controlling bacterial pathogens. Early infection may result in long term colonization of layers with Salmonella entritidis, resulting in … …American Journal of Applied Sciences, Vol. 6, Issue 10 · 31 Oct 2009 · 6,780 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffects of Betaine Supplementation to Methionine Deficient Diet on Growth Performance and Carcass Characteristics of BroilersH. Sun, W.R. Yang, Z.B. Yang et al.Problem Statement: The efficacy of Methionine (Met) sparing effect of Betaine (BET) has been shown to be associated with dietary compositions, animal physiological stage and living conditions. This study was to determine the extent to which dietary Met could be replaced by BET in broiler chickens under the feeding conditions specific to Chinese poultry industry.Approach: A total of 900 day-old … …American Journal of Animal and Veterinary Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 14,155 accessesView PDF Cite