Effect of different levels of lysine and fiber degrading enzyme on growth rate and gut development in the starter phase of slow-growing Ayam SAGA


Citation

Nor Izwan Hakimi N. A., . and Mohd Noor Hisham M. N., . and Roziatul Erin A. R., . and Sarah R., . and Norham I., . and Muhammad Rusydi R., . and Harivanthan M., . and Noraini S., . (2024) Effect of different levels of lysine and fiber degrading enzyme on growth rate and gut development in the starter phase of slow-growing Ayam SAGA. Malaysian Journal of Animal Science (Malaysia), 27 (2). pp. 1-19. ISSN 2520-2123

Abstract

This study investigated the impact of varying levels of the essential amino acid lysine and the fiber-degrading enzyme β-mannanase on growth performance and gut morphology in the starter phase of slow-growing Ayam SAGA. The study aimed to optimize the utilization of Palm Kernel Cake (PKC), which is rich in fiber, as a sustainable feed ingredient for monogastric animals. Utilizing a 3x3 factorial design with a Randomized Complete Block Design (RCBD), the experiment involved nine treatment groups with three replicates each. The results revealed that the highest level of lysine (120% NRC) combined with 0.4% β-mannanase (T9) significantly enhanced gizzard weight, jejunal and ileal development (p < 0.05), which correlated with improved Body Weight Gain (BWG) and a reduced Feed Conversion Ratio (FCR) in Ayam SAGA. However, Feed Intake (FI) was not significantly affected by the enzyme-lysine combination. These findings suggest that the optimized combination (120% NRC lysine, 0.4% β-mannanase) can improve nutrient absorption and growth efficiency, potentially enhancing the sustainability of poultry production using PKC-based diets.


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Abstract

This study investigated the impact of varying levels of the essential amino acid lysine and the fiber-degrading enzyme β-mannanase on growth performance and gut morphology in the starter phase of slow-growing Ayam SAGA. The study aimed to optimize the utilization of Palm Kernel Cake (PKC), which is rich in fiber, as a sustainable feed ingredient for monogastric animals. Utilizing a 3x3 factorial design with a Randomized Complete Block Design (RCBD), the experiment involved nine treatment groups with three replicates each. The results revealed that the highest level of lysine (120% NRC) combined with 0.4% β-mannanase (T9) significantly enhanced gizzard weight, jejunal and ileal development (p < 0.05), which correlated with improved Body Weight Gain (BWG) and a reduced Feed Conversion Ratio (FCR) in Ayam SAGA. However, Feed Intake (FI) was not significantly affected by the enzyme-lysine combination. These findings suggest that the optimized combination (120% NRC lysine, 0.4% β-mannanase) can improve nutrient absorption and growth efficiency, potentially enhancing the sustainability of poultry production using PKC-based diets.

Additional Metadata

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Item Type: Article
AGROVOC Term: poultry
AGROVOC Term: lysine
AGROVOC Term: palm kernel cake
AGROVOC Term: feeding
AGROVOC Term: growth
AGROVOC Term: enzymes
AGROVOC Term: diet
AGROVOC Term: growth rate
AGROVOC Term: feed intake
Geographical Term: Malaysia
Depositing User: Ms. Azariah Hashim
Date Deposited: 29 Jul 2026 03:03
Last Modified: 29 Jul 2026 03:03
URI: http://webagris.upm.edu.my/id/eprint/3555

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