Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets
Summary: This study evaluated the effects of substituting conventional corn with Enogen® corn in standard and energy-restricted diets on pullet growth performance, body composition, bone health, and intestinal morphology across major pullet developmental phases. Birds were fed conventional corn or E...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-12-01
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| Series: | Journal of Applied Poultry Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1056617125000625 |
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| author | Deependra Paneru Dima L. White Milan K. Sharma John M. Gonzalez Woo K. Kim |
| author_facet | Deependra Paneru Dima L. White Milan K. Sharma John M. Gonzalez Woo K. Kim |
| author_sort | Deependra Paneru |
| collection | DOAJ |
| description | Summary: This study evaluated the effects of substituting conventional corn with Enogen® corn in standard and energy-restricted diets on pullet growth performance, body composition, bone health, and intestinal morphology across major pullet developmental phases. Birds were fed conventional corn or Enogen® corn (expressing thermostable α-amylase enzyme endogenously) based diets, with or without a 200 kcal/kg energy reduction. The aim of this study was to evaluate whether, and if so, how, these dietary modifications influence physiological adaptation and energy partitioning during critical growth phases in pullets. Pullets showed compensatory feeding behavior under energy-restricted diets by increasing feed intake to maintain body weight and growth rates. Enogen® corn substitution did not significantly improve growth performance under ad libitum feeding conditions; however, numerical trend toward improved feed efficiency was observed. Body composition, including fat and muscle percentages, remained stable across all diets, suggesting effective metabolic homeostasis. Bone mineralization and microarchitecture were unaffected by dietary treatments, suggesting the adequacy of dietary minerals in supporting skeletal development. Similarly, intestinal structure showed no morphological changes, indicating that balanced protein, amino acids, and minerals supported gut integrity without necessitating compensatory remodeling. These results emphasize the resilience of pullets to moderate dietary variations when fundamental nutritional requirements are met. While the benefits of Enogen® corn in standard feeding regimens were inconclusive, its potential under energy-restricted and challenge conditions warrants further research. |
| format | Article |
| id | doaj-art-01a52215a40f43e88f60faa8d4326e93 |
| institution | Kabale University |
| issn | 1056-6171 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Applied Poultry Research |
| spelling | doaj-art-01a52215a40f43e88f60faa8d4326e932025-08-20T03:56:41ZengElsevierJournal of Applied Poultry Research1056-61712025-12-0134410057810.1016/j.japr.2025.100578Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pulletsDeependra Paneru0Dima L. White1Milan K. Sharma2John M. Gonzalez3Woo K. Kim4Department of Poultry Science, University of Georgia, Athens 30602 GA, USADepartment of Poultry Science, University of Georgia, Athens 30602 GA, USADepartment of Poultry Science, University of Georgia, Athens 30602 GA, USADepartment of Animal and Dairy Science, University of Georgia, Athens 30602 GA, USADepartment of Poultry Science, University of Georgia, Athens 30602 GA, USA; Corresponding author at: Woo Kyun Kim, 408 Poultry Science Building, 120 D. W. Brooks Drive, Athens, GA 30602 USA.Summary: This study evaluated the effects of substituting conventional corn with Enogen® corn in standard and energy-restricted diets on pullet growth performance, body composition, bone health, and intestinal morphology across major pullet developmental phases. Birds were fed conventional corn or Enogen® corn (expressing thermostable α-amylase enzyme endogenously) based diets, with or without a 200 kcal/kg energy reduction. The aim of this study was to evaluate whether, and if so, how, these dietary modifications influence physiological adaptation and energy partitioning during critical growth phases in pullets. Pullets showed compensatory feeding behavior under energy-restricted diets by increasing feed intake to maintain body weight and growth rates. Enogen® corn substitution did not significantly improve growth performance under ad libitum feeding conditions; however, numerical trend toward improved feed efficiency was observed. Body composition, including fat and muscle percentages, remained stable across all diets, suggesting effective metabolic homeostasis. Bone mineralization and microarchitecture were unaffected by dietary treatments, suggesting the adequacy of dietary minerals in supporting skeletal development. Similarly, intestinal structure showed no morphological changes, indicating that balanced protein, amino acids, and minerals supported gut integrity without necessitating compensatory remodeling. These results emphasize the resilience of pullets to moderate dietary variations when fundamental nutritional requirements are met. While the benefits of Enogen® corn in standard feeding regimens were inconclusive, its potential under energy-restricted and challenge conditions warrants further research.http://www.sciencedirect.com/science/article/pii/S1056617125000625Enogen® cornPulletsgrowth performanceBone healthIntestinal morphology |
| spellingShingle | Deependra Paneru Dima L. White Milan K. Sharma John M. Gonzalez Woo K. Kim Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets Journal of Applied Poultry Research Enogen® corn Pullets growth performance Bone health Intestinal morphology |
| title | Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets |
| title_full | Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets |
| title_fullStr | Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets |
| title_full_unstemmed | Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets |
| title_short | Evaluation of Enogen® corn as a replacement for conventional corn in standard and energy-deficient diets for pullets |
| title_sort | evaluation of enogen r corn as a replacement for conventional corn in standard and energy deficient diets for pullets |
| topic | Enogen® corn Pullets growth performance Bone health Intestinal morphology |
| url | http://www.sciencedirect.com/science/article/pii/S1056617125000625 |
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