Exploiting the Maximum Productive Potential of Spent Laying Hens with Various Metabolizable Energy and Protein Levels after Induced Molting
2003
M, Akram. (University of Agriculture, Pakistan) | Park, J.H. | Ryu, M.S. | Shin, K.H. | Ryu, K.S. (Chonbuk National University, Republic of Korea)
This experiment was conducted to investigate the influence of different levels of metaboizable energy (ME) and crude protein (CP) on post-molt performance and egg quality of spent laying hens. Four hundred and thirty two, ISA Brown hens at sixty six weeks of age after molt indiction were fed six experimental diets containing three ME (2,750, 2,800, 2,850 kcal/kg) with two CP (15, 17%) levels in a factorial design. The influence of ME and CP were evaluated on egg production, egg weight and feed intake throughout 24 weeks of production, Egg mass and feed conversion ratio (FCR) were measured during the experimental period. Haugh unit, yolk color and eggshell breaking strength were measured at 5%, 50%, peak, post peak and end stage of egg production, The hens fed 2800 kcal/kg diet along with 15% CP recorded the highest outcome of egg production (P0.05). The egg weight has been shown to increase with hens receiving 2,800 kcal/kg ME.
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