Organ growth and fermentation profiles of broilers differing in body growth rate
ABSTRACT: This study sought to determine the relationship among broiler performance, organ development, and indicators of microbiota colonization. A total of 1,200 two-day-old male Ross 308 broiler chicks, divided among 3 cohorts of equal size, were housed in battery cages, and allotted based on bod...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-05-01
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| Series: | Poultry Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0032579124002074 |
| _version_ | 1797249232800841728 |
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| author | Brad Gorenz Maci L. Oelschlager Julianna C. Jespersen Chang Cao Alexandra H. Smith Roderick I. Mackie Ryan N. Dilger |
| author_facet | Brad Gorenz Maci L. Oelschlager Julianna C. Jespersen Chang Cao Alexandra H. Smith Roderick I. Mackie Ryan N. Dilger |
| author_sort | Brad Gorenz |
| collection | DOAJ |
| description | ABSTRACT: This study sought to determine the relationship among broiler performance, organ development, and indicators of microbiota colonization. A total of 1,200 two-day-old male Ross 308 broiler chicks, divided among 3 cohorts of equal size, were housed in battery cages, and allotted based on body weight. On study d 11, birds were weighed, and birds with BW gain within the 10th and 90th percentiles were assigned to the Slow and Fast groups, respectively. Birds (n = 30 for each group) selected on d 11 were provided water and a corn-soybean meal-based diet ad libitum while maintained individually through study d 25 (i.e., a 14-d growth period). Parameters regarding growth performance, organ and intestine weights and lengths, and intestinal volatile fatty acid concentrations were measured. All data were analyzed by one-way ANOVA using the Mixed procedure of SAS. Fast birds exhibited greater (P < 0.001) BW gain and feed intake than slow birds, but feed conversion ratio (FCR) did not differ (P = 0.19). Additionally, Slow birds had higher (P < 0.05) relative weights (% of BW) for nearly all organs on d 11 and 25, most notably the gizzard, proventriculus, pancreas, and liver. Conversely, intestinal sections were longer (P < 0.05) in the Fast birds. Measurement of gut histomorphology did not show any notable differences between growth rate groups in terms of villi height, crypt depth, or their ratio for either time-point (P > 0.05). In terms of volatile fatty acid concentrations of luminal contents, acetate concentrations were 10.2% higher (P < 0.001) in the ileum of the Slow birds compared with Fast birds on d 25. Overall, the findings suggest that total BW gain is influenced by the development of metabolically active organs, as supported by lower weight gain in Slow birds with relatively larger organ weights and shorter intestinal lengths than their Fast counterparts. The general lack of differences in fermentation end-product concentrations in luminal contents does not rule out influence of the microbiota on growth rate of broilers, which warrants further investigation. |
| first_indexed | 2024-04-24T20:27:13Z |
| format | Article |
| id | doaj.art-b6db4895782c4b38891eb9a993a80b74 |
| institution | Directory Open Access Journal |
| issn | 0032-5791 |
| language | English |
| last_indexed | 2024-04-24T20:27:13Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Poultry Science |
| spelling | doaj.art-b6db4895782c4b38891eb9a993a80b742024-03-22T05:38:25ZengElsevierPoultry Science0032-57912024-05-011035103628Organ growth and fermentation profiles of broilers differing in body growth rateBrad Gorenz0Maci L. Oelschlager1Julianna C. Jespersen2Chang Cao3Alexandra H. Smith4Roderick I. Mackie5Ryan N. Dilger6Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USADepartment of Animal Sciences, University of Illinois, Urbana, IL 61801, USADepartment of Animal Sciences, University of Illinois, Urbana, IL 61801, USADepartment of Animal Sciences, University of Illinois, Urbana, IL 61801, USAArm & Hammer Animal and Food Production, Church & Dwight Co., Inc., Waukesha, WI 53186, USADepartment of Animal Sciences, University of Illinois, Urbana, IL 61801, USADepartment of Animal Sciences, University of Illinois, Urbana, IL 61801, USA; Corresponding author:ABSTRACT: This study sought to determine the relationship among broiler performance, organ development, and indicators of microbiota colonization. A total of 1,200 two-day-old male Ross 308 broiler chicks, divided among 3 cohorts of equal size, were housed in battery cages, and allotted based on body weight. On study d 11, birds were weighed, and birds with BW gain within the 10th and 90th percentiles were assigned to the Slow and Fast groups, respectively. Birds (n = 30 for each group) selected on d 11 were provided water and a corn-soybean meal-based diet ad libitum while maintained individually through study d 25 (i.e., a 14-d growth period). Parameters regarding growth performance, organ and intestine weights and lengths, and intestinal volatile fatty acid concentrations were measured. All data were analyzed by one-way ANOVA using the Mixed procedure of SAS. Fast birds exhibited greater (P < 0.001) BW gain and feed intake than slow birds, but feed conversion ratio (FCR) did not differ (P = 0.19). Additionally, Slow birds had higher (P < 0.05) relative weights (% of BW) for nearly all organs on d 11 and 25, most notably the gizzard, proventriculus, pancreas, and liver. Conversely, intestinal sections were longer (P < 0.05) in the Fast birds. Measurement of gut histomorphology did not show any notable differences between growth rate groups in terms of villi height, crypt depth, or their ratio for either time-point (P > 0.05). In terms of volatile fatty acid concentrations of luminal contents, acetate concentrations were 10.2% higher (P < 0.001) in the ileum of the Slow birds compared with Fast birds on d 25. Overall, the findings suggest that total BW gain is influenced by the development of metabolically active organs, as supported by lower weight gain in Slow birds with relatively larger organ weights and shorter intestinal lengths than their Fast counterparts. The general lack of differences in fermentation end-product concentrations in luminal contents does not rule out influence of the microbiota on growth rate of broilers, which warrants further investigation.http://www.sciencedirect.com/science/article/pii/S0032579124002074organ growthfermentation profilebroilerbody growth rateenergy metabolism |
| spellingShingle | Brad Gorenz Maci L. Oelschlager Julianna C. Jespersen Chang Cao Alexandra H. Smith Roderick I. Mackie Ryan N. Dilger Organ growth and fermentation profiles of broilers differing in body growth rate Poultry Science organ growth fermentation profile broiler body growth rate energy metabolism |
| title | Organ growth and fermentation profiles of broilers differing in body growth rate |
| title_full | Organ growth and fermentation profiles of broilers differing in body growth rate |
| title_fullStr | Organ growth and fermentation profiles of broilers differing in body growth rate |
| title_full_unstemmed | Organ growth and fermentation profiles of broilers differing in body growth rate |
| title_short | Organ growth and fermentation profiles of broilers differing in body growth rate |
| title_sort | organ growth and fermentation profiles of broilers differing in body growth rate |
| topic | organ growth fermentation profile broiler body growth rate energy metabolism |
| url | http://www.sciencedirect.com/science/article/pii/S0032579124002074 |
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