Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch

Nonlinear models are frequently utilized to study the growth and development of livestock and poultry, and to investigate the dynamic relationship with the intestinal microbiota changes. In this study, a total of 180 Magang geese (1-day-old) were selected and randomly divided into 6 replicates with...

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Main Authors: Xue Li, Guorong Song, Qingyun Cao, Qianyuan Mo, Yang Fu, Jianying Chen, Ben Lukuyu, Shunxiang Wang, Hui Ye, Yongwen Zhu, Kashif Saleemi Muhammad, Lin Yang, Jie Pan, Wence Wang
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Poultry Science
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Online Access:http://www.sciencedirect.com/science/article/pii/S0032579125005097
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author Xue Li
Guorong Song
Qingyun Cao
Qianyuan Mo
Yang Fu
Jianying Chen
Ben Lukuyu
Shunxiang Wang
Hui Ye
Yongwen Zhu
Kashif Saleemi Muhammad
Lin Yang
Jie Pan
Wence Wang
author_facet Xue Li
Guorong Song
Qingyun Cao
Qianyuan Mo
Yang Fu
Jianying Chen
Ben Lukuyu
Shunxiang Wang
Hui Ye
Yongwen Zhu
Kashif Saleemi Muhammad
Lin Yang
Jie Pan
Wence Wang
author_sort Xue Li
collection DOAJ
description Nonlinear models are frequently utilized to study the growth and development of livestock and poultry, and to investigate the dynamic relationship with the intestinal microbiota changes. In this study, a total of 180 Magang geese (1-day-old) were selected and randomly divided into 6 replicates with 30 geese in each replicate. The growth performance, organ development, and intestinal flora composition of geese aged 7, 14, 21, 28, 42, 50, 60, and 70 d were observed. A total of 3 nonlinear growth models were applied to fit the development curves, aiming to explore the ontogenic development of Magang geese and the dynamic changes in the intestinal flora. Our results demonstrated that the Gompertz model serves as the most suitable model for simulating the growth pattern of Magang geese (R2=0.996). Using this model, the weight of the inflection point in Magang geese was 3.470 kg, the age of the inflection point was 25.460 d, and the maximum daily gain was 0.061 kg. The development curves of the liver, kidney, and pancreas conform to the Logistic model (R2=0.901, 0.978, 0.971), while the intestinal development also followed this model. The bacteria involved in energy metabolism (Subdoligranulum, Bacteroides, Romboutsia) and the bacteria inhibiting the colonization of harmful bacteria (Blautia) in cecum changed rapidly from 7 to 14 d, and microbial community composition stabilized after 21 d. In conclusion, our findings indicated that the ontogenic pattern of the Magang goose conformed to the Gompertz growth curve. The period from 7 to 42 d represents the rapid growth phase for Magang geese, during which organ development occurs, and cecal microbiota composition becomes increasingly stable.
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spelling doaj-art-c5f3627ac84b47769c8d12d1d0ec8cfd2025-08-20T03:55:53ZengElsevierPoultry Science0032-57912025-08-01104810526710.1016/j.psj.2025.105267Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatchXue Li0Guorong Song1Qingyun Cao2Qianyuan Mo3Yang Fu4Jianying Chen5Ben Lukuyu6Shunxiang Wang7Hui Ye8Yongwen Zhu9Kashif Saleemi Muhammad10Lin Yang11Jie Pan12Wence Wang13State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaInternational Livestock Research Institute, Nairobi, 00100, KenyaGuangdong Haid Group Co., Limited, Guangzhou, 511400, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaDepartment of Pathology, University of Agriculture Faisalabad, Faisalabad 38040, PakistanState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR ChinaZhuhai Tianjiao Technology Co., Limited, Zhuhai, 519000, PR ChinaState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510640, PR China; Corresponding author.Nonlinear models are frequently utilized to study the growth and development of livestock and poultry, and to investigate the dynamic relationship with the intestinal microbiota changes. In this study, a total of 180 Magang geese (1-day-old) were selected and randomly divided into 6 replicates with 30 geese in each replicate. The growth performance, organ development, and intestinal flora composition of geese aged 7, 14, 21, 28, 42, 50, 60, and 70 d were observed. A total of 3 nonlinear growth models were applied to fit the development curves, aiming to explore the ontogenic development of Magang geese and the dynamic changes in the intestinal flora. Our results demonstrated that the Gompertz model serves as the most suitable model for simulating the growth pattern of Magang geese (R2=0.996). Using this model, the weight of the inflection point in Magang geese was 3.470 kg, the age of the inflection point was 25.460 d, and the maximum daily gain was 0.061 kg. The development curves of the liver, kidney, and pancreas conform to the Logistic model (R2=0.901, 0.978, 0.971), while the intestinal development also followed this model. The bacteria involved in energy metabolism (Subdoligranulum, Bacteroides, Romboutsia) and the bacteria inhibiting the colonization of harmful bacteria (Blautia) in cecum changed rapidly from 7 to 14 d, and microbial community composition stabilized after 21 d. In conclusion, our findings indicated that the ontogenic pattern of the Magang goose conformed to the Gompertz growth curve. The period from 7 to 42 d represents the rapid growth phase for Magang geese, during which organ development occurs, and cecal microbiota composition becomes increasingly stable.http://www.sciencedirect.com/science/article/pii/S0032579125005097Growth curveOrgan developmentGut microbiotaMagang goose
spellingShingle Xue Li
Guorong Song
Qingyun Cao
Qianyuan Mo
Yang Fu
Jianying Chen
Ben Lukuyu
Shunxiang Wang
Hui Ye
Yongwen Zhu
Kashif Saleemi Muhammad
Lin Yang
Jie Pan
Wence Wang
Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch
Poultry Science
Growth curve
Organ development
Gut microbiota
Magang goose
title Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch
title_full Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch
title_fullStr Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch
title_full_unstemmed Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch
title_short Growth curve fitting and analysis of intestinal flora changes of the Magang Goose (Anser domesticus) during 1 to 70 days post hatch
title_sort growth curve fitting and analysis of intestinal flora changes of the magang goose anser domesticus during 1 to 70 days post hatch
topic Growth curve
Organ development
Gut microbiota
Magang goose
url http://www.sciencedirect.com/science/article/pii/S0032579125005097
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