Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese
Although the nutrient requirements of geese during the growing stage are known, the dietary requirement of amino acids during the starting period remains unclear. Optimum nutrient supplementation during the starting period is crucial for improved survival rates, body-weight gain, and marketing weigh...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Japan Poultry Science Association
2023-02-01
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| Series: | The Journal of Poultry Science |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jpsa/60/2/60_2023008/_article/-char/en |
| _version_ | 1797817458459934720 |
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| author | Yang Fu Bo Liu Hui Lei Zhenping Lin JunPeng Chen Yongwen Zhu Hui Ye Lin Yang Wence Wang |
| author_facet | Yang Fu Bo Liu Hui Lei Zhenping Lin JunPeng Chen Yongwen Zhu Hui Ye Lin Yang Wence Wang |
| author_sort | Yang Fu |
| collection | DOAJ |
| description | Although the nutrient requirements of geese during the growing stage are known, the dietary requirement of amino acids during the starting period remains unclear. Optimum nutrient supplementation during the starting period is crucial for improved survival rates, body-weight gain, and marketing weight in geese. Our study focused on the effect of dietary tryptophan (Trp) supplementation on the growth performance, plasma parameters, and internal-organ relative weights in 1–28-day-old Sichuan white geese. A total of 1080 1-day-old geese were divided randomly into six Trp-supplemented (0.145%, 0.190%, 0.235%, 0.280%, 0.325%, and 0.370%) groups. Average daily feed intake (ADFI), average daily gain (ADG), and duodenal relative weight were highest in the 0.190% group, brisket protein level and jejunal relative weight in the 0.235% group, and plasma total protein and albumin levels in the 0.325% group (P < 0.05). Dietary Trp supplementation did not significantly affect the relative weights of the spleen, thymus, liver, bursa of Fabricius, kidneys, and pancreas. Moreover, the 0.145% – 0.235% groups showed significantly decreased liver fat (P < 0.05). Based on the non-linear regression analysis of ADG and ADFI, the dietary Trp levels between 0.183% and 0.190% were estimated to be optimal for 1–28-day-old Sichuan white geese. In conclusion, optimal dietary Trp supplementation in 1–28-day-old Sichuan white geese resulted in increased growth performance (0.180% – 0.190%) along with improved proximal intestinal development and brisket protein deposition (0.235%). Our findings provide basic evidence and guidance for optimal levels of Trp supplementation in geese. |
| first_indexed | 2024-03-13T08:53:45Z |
| format | Article |
| id | doaj.art-da0833168e1f4eea83a601b7bef1cc64 |
| institution | Directory Open Access Journal |
| issn | 1349-0486 |
| language | English |
| last_indexed | 2024-03-13T08:53:45Z |
| publishDate | 2023-02-01 |
| publisher | Japan Poultry Science Association |
| record_format | Article |
| series | The Journal of Poultry Science |
| spelling | doaj.art-da0833168e1f4eea83a601b7bef1cc642023-05-29T06:14:02ZengJapan Poultry Science AssociationThe Journal of Poultry Science1349-04862023-02-01602https://doi.org/10.2141/jpsa.2023008Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White GeeseYang Fu0Bo Liu1Hui Lei2Zhenping Lin3JunPeng Chen4Yongwen Zhu5Hui Ye6Lin Yang7Wence Wang8College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, ChinaChangsha Sanwang Feed Co. Ltd, Changsha 410000, ChinaCollege of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, ChinaShantou Baisha Research Institute of Original Species of Poultry and Stock, Shantou 515041, ChinaShantou Baisha Research Institute of Original Species of Poultry and Stock, Shantou 515041, ChinaCollege of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, ChinaCollege of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, ChinaCollege of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, ChinaCollege of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, ChinaAlthough the nutrient requirements of geese during the growing stage are known, the dietary requirement of amino acids during the starting period remains unclear. Optimum nutrient supplementation during the starting period is crucial for improved survival rates, body-weight gain, and marketing weight in geese. Our study focused on the effect of dietary tryptophan (Trp) supplementation on the growth performance, plasma parameters, and internal-organ relative weights in 1–28-day-old Sichuan white geese. A total of 1080 1-day-old geese were divided randomly into six Trp-supplemented (0.145%, 0.190%, 0.235%, 0.280%, 0.325%, and 0.370%) groups. Average daily feed intake (ADFI), average daily gain (ADG), and duodenal relative weight were highest in the 0.190% group, brisket protein level and jejunal relative weight in the 0.235% group, and plasma total protein and albumin levels in the 0.325% group (P < 0.05). Dietary Trp supplementation did not significantly affect the relative weights of the spleen, thymus, liver, bursa of Fabricius, kidneys, and pancreas. Moreover, the 0.145% – 0.235% groups showed significantly decreased liver fat (P < 0.05). Based on the non-linear regression analysis of ADG and ADFI, the dietary Trp levels between 0.183% and 0.190% were estimated to be optimal for 1–28-day-old Sichuan white geese. In conclusion, optimal dietary Trp supplementation in 1–28-day-old Sichuan white geese resulted in increased growth performance (0.180% – 0.190%) along with improved proximal intestinal development and brisket protein deposition (0.235%). Our findings provide basic evidence and guidance for optimal levels of Trp supplementation in geese.https://www.jstage.jst.go.jp/article/jpsa/60/2/60_2023008/_article/-char/enintestineprotein depositionsichuan white goosetryptophanrelative weight |
| spellingShingle | Yang Fu Bo Liu Hui Lei Zhenping Lin JunPeng Chen Yongwen Zhu Hui Ye Lin Yang Wence Wang Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese The Journal of Poultry Science intestine protein deposition sichuan white goose tryptophan relative weight |
| title | Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese |
| title_full | Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese |
| title_fullStr | Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese |
| title_full_unstemmed | Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese |
| title_short | Effects of Dietary Tryptophan on Growth Performance, Plasma Parameters, and Internal Organs of 1–28-Day-Old Sichuan White Geese |
| title_sort | effects of dietary tryptophan on growth performance plasma parameters and internal organs of 1 28 day old sichuan white geese |
| topic | intestine protein deposition sichuan white goose tryptophan relative weight |
| url | https://www.jstage.jst.go.jp/article/jpsa/60/2/60_2023008/_article/-char/en |
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