Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks

The yolk sac provides nutrients to a newly hatched chick with maternal nutrient substances including large amounts of lipids. Higher resorption of the yolk sac is generally considered positive for chick development. However, it is hard to determine yolk sac absorption differences among living chicks...

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Main Authors: Qiqi Han, Yao Zhang, Youying Chen, Ze Wang, Shu Chen, Dongli Li, Wenbin Li, Aiqiao Liu, Yuming Guo, Zengpeng Lv
Format: Article
Language:English
Published: Elsevier 2025-11-01
Series:Poultry Science
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Online Access:http://www.sciencedirect.com/science/article/pii/S0032579125008557
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author Qiqi Han
Yao Zhang
Youying Chen
Ze Wang
Shu Chen
Dongli Li
Wenbin Li
Aiqiao Liu
Yuming Guo
Zengpeng Lv
author_facet Qiqi Han
Yao Zhang
Youying Chen
Ze Wang
Shu Chen
Dongli Li
Wenbin Li
Aiqiao Liu
Yuming Guo
Zengpeng Lv
author_sort Qiqi Han
collection DOAJ
description The yolk sac provides nutrients to a newly hatched chick with maternal nutrient substances including large amounts of lipids. Higher resorption of the yolk sac is generally considered positive for chick development. However, it is hard to determine yolk sac absorption differences among living chicks with similar body weight for assessing chick quality. In this study, we explored the serum lipidome changes using a lipidomics strategy to elucidate the underlying mechanisms of yolk sac absorption difference in day-old chicks and determine some effective indicators for chick quality evaluation. A total of 588 hatching eggs were collected from a breeder flock and classified into 7 weight categories (56-70 g, with 2 grams in each category). After hatching, the chicks were grouped into 12 groups based on sex (male or female) and body weight (≤39 g, 39-41 g, 41-43 g, 43-45 g, 45-47 g, >47 g). The quality of the chicks and yolk sac index were assessed. Then, 12 male chicks from 45 to 47 g and 12 female chicks from 39 to 41 g were sacrificed to perform serum lipidome detection using liquid chromatography-mass spectrometry (LC-MS). The results showed that the yolk sac index was significantly positively correlated with body weight in both male and female day-old chicks (P < 0.01). The yolk sac index did not affect the concentration of glucose, triglycerides, or cholesterol in the serum (P > 0.05). A total of 1271 lipid species across 40 subclasses were identified in the serum. 221 lipids in male birds and 284 lipids in female birds with yolk sac index variation were significantly different (P < 0.05). As the yolk sac index increased, the serum levels of triglyceride, sphingomyelin, phosphatidylcholine ether bond, lysophosphatidylcholine, and lysophosphatidylethanolamine decreased in male birds, while those of triglyceride, ceramide-NS, and phosphatidylcholine increased in female birds. Phosphatidylglycerol (PG) (18:1_18:1), PG (18:0_18:2) and glycosphingolipid Hex2Cer (d18:1/18:0) contents were significantly downregulated in both male and female birds, which could serve as candidate biomarkers for yolk sac absorption, pending further validation in larger cohorts. Overall, the findings provide a novel understanding of yolk sac absorption and utilization in newly hatched chicks.
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publisher Elsevier
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series Poultry Science
spelling doaj-art-0826652fe75149abae83a0a2c99171e12025-08-20T04:01:02ZengElsevierPoultry Science0032-57912025-11-011041110561410.1016/j.psj.2025.105614Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicksQiqi Han0Yao Zhang1Youying Chen2Ze Wang3Shu Chen4Dongli Li5Wenbin Li6Aiqiao Liu7Yuming Guo8Zengpeng Lv9State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; Chia Tai Conti Agri-Husbandry Group Co., Ltd., Shenzhen 518063, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaBeijing Huadu Yukou Poultry Industry Co., Ltd., Beijing 101200, ChinaBeijing Huadu Yukou Poultry Industry Co., Ltd., Beijing 101200, ChinaBeijing Huadu Yukou Poultry Industry Co., Ltd., Beijing 101200, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; China Agricultural University‐Sichuan Advanced Agricultural &amp; Industrial Institute, Chengdu 611430, China; Corresponding author.The yolk sac provides nutrients to a newly hatched chick with maternal nutrient substances including large amounts of lipids. Higher resorption of the yolk sac is generally considered positive for chick development. However, it is hard to determine yolk sac absorption differences among living chicks with similar body weight for assessing chick quality. In this study, we explored the serum lipidome changes using a lipidomics strategy to elucidate the underlying mechanisms of yolk sac absorption difference in day-old chicks and determine some effective indicators for chick quality evaluation. A total of 588 hatching eggs were collected from a breeder flock and classified into 7 weight categories (56-70 g, with 2 grams in each category). After hatching, the chicks were grouped into 12 groups based on sex (male or female) and body weight (≤39 g, 39-41 g, 41-43 g, 43-45 g, 45-47 g, >47 g). The quality of the chicks and yolk sac index were assessed. Then, 12 male chicks from 45 to 47 g and 12 female chicks from 39 to 41 g were sacrificed to perform serum lipidome detection using liquid chromatography-mass spectrometry (LC-MS). The results showed that the yolk sac index was significantly positively correlated with body weight in both male and female day-old chicks (P < 0.01). The yolk sac index did not affect the concentration of glucose, triglycerides, or cholesterol in the serum (P > 0.05). A total of 1271 lipid species across 40 subclasses were identified in the serum. 221 lipids in male birds and 284 lipids in female birds with yolk sac index variation were significantly different (P < 0.05). As the yolk sac index increased, the serum levels of triglyceride, sphingomyelin, phosphatidylcholine ether bond, lysophosphatidylcholine, and lysophosphatidylethanolamine decreased in male birds, while those of triglyceride, ceramide-NS, and phosphatidylcholine increased in female birds. Phosphatidylglycerol (PG) (18:1_18:1), PG (18:0_18:2) and glycosphingolipid Hex2Cer (d18:1/18:0) contents were significantly downregulated in both male and female birds, which could serve as candidate biomarkers for yolk sac absorption, pending further validation in larger cohorts. Overall, the findings provide a novel understanding of yolk sac absorption and utilization in newly hatched chicks.http://www.sciencedirect.com/science/article/pii/S0032579125008557Yolk sacAbsorptionNewly hatched chickLipidomics
spellingShingle Qiqi Han
Yao Zhang
Youying Chen
Ze Wang
Shu Chen
Dongli Li
Wenbin Li
Aiqiao Liu
Yuming Guo
Zengpeng Lv
Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
Poultry Science
Yolk sac
Absorption
Newly hatched chick
Lipidomics
title Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
title_full Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
title_fullStr Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
title_full_unstemmed Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
title_short Serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
title_sort serum lipidomics analysis reveals yolk sac absorption differences in newly hatched chicks
topic Yolk sac
Absorption
Newly hatched chick
Lipidomics
url http://www.sciencedirect.com/science/article/pii/S0032579125008557
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