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RESPONSE OF DIFFERENT GENOTYPES OF BROILERS TO LYSINE SUPPLEMENTATION RAISED UNDER PRACTICAL CONDITION

*B. Indarsih  -  Faculty of Animal Science, Mataram University,, Indonesia
M.H. Tamsil  -  Faculty of Animal Science, Mataram University,, Indonesia

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Abstract
This study evaluated lysine supplementation of 4 to 42 day of age of two commercial broilergenotypes (Arbor Acres and Lohmann). Four hundred and fifty day-old chicks were sexed andrandomly distributed into 60 bamboo pens each 2 m2. A starter commercial diet as a basal diet wassupplemented with lysine mono-HCL in a 2x2x5 factorial arrangement with lysine levels of 0.0, 0.5,1.0, 1.5 and 2.0 g/kg fed from 4-21 days of age, and then followed by a finisher diet fed from 22-42days of age. Feed consumption, body weight gain and FCR were determined on weekly basis. On d 43of experiment, 4 birds per each replicate were processed for carcass parameters. Results of the studyrevealed that lysine supplementation in a starter commercial diet increased significantly carcass weight(P<0.05. Improved breast meat and lower abdominal fat were found in lysine supplementation. ArborAcres broilers response more efficient in low lysine whilst Lohmann broilers were better in a higherlevel of lysine.
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Keywords: Lysine. broiler. genotype. breast meat. abdominal fat

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Last update: 2021-07-24 08:20:34

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