M T Sørensen, T S Dalgaard, R B Kjærup, D Mandrioli, L Foldager
{"title":"Influence of glyphosate in feed on egg hatchability and health of chicks and breeder hens.","authors":"M T Sørensen, T S Dalgaard, R B Kjærup, D Mandrioli, L Foldager","doi":"10.1080/00071668.2026.2615732","DOIUrl":null,"url":null,"abstract":"<p><p>1. This study investigated the potential effects of exposure to glyphosate from feed on breeder hens on egg hatchability and chick health. Hens received diets with no added glyphosate (Gly as a control (Con), or with addition of 1.5 (Gly<sub>1.5</sub>), 4.5 (Gly<sub>4.5</sub>) and 13.5 (Gly<sub>13.5</sub>) mg/kg glyphosate in the diet resulting in analysed contents of 0.01, 1,47, 3.59 and 11.6 mg per kg diet, respectively.2. There were no effects of glyphosate in diets fed to breeder hens on hatchability of fertilised eggs (0.95, 0.93, 0.91 and 0.90 for Con, Gly<sub>1.5</sub>, Gly<sub>4.5</sub> and Gly<sub>13.5</sub>, respectively). Even though no effects of glyphosate were observed on one-day-old progeny chick quality, a <i>post hoc</i> analysis indicated that the navel score was best for chicks from the Con group compared to chicks from the combined Gly groups (<i>p</i> = 0.025). Weight gain of the chicks at 8 d of age was not affected.3. For immune competence and leukocyte subset counts in whole blood from breeder hens and one-day-old chicks, the results showed higher numbers of B-cells (<i>p</i> = 0.005) and monocytes (<i>p</i> = 0.027) as well as phagocytic activity of lymphocytes (<i>p</i> = 0.015). These were associated with higher glyphosate levels in peripheral blood from hens, whereas only phagocytic activity of lymphocytes was seen in chicks (<i>p</i> = 0.004). Total antioxidant capacity in blood plasma of hens and one-day old chicks was not affected.4. In conclusion, only some immune changes were associated in both hens and chicks with up to 11.6 mg glyphosate/kg diet fed to breeder hens.</p>","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"751-760"},"PeriodicalIF":1.7000,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"British Poultry Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1080/00071668.2026.2615732","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/2/9 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
1. This study investigated the potential effects of exposure to glyphosate from feed on breeder hens on egg hatchability and chick health. Hens received diets with no added glyphosate (Gly as a control (Con), or with addition of 1.5 (Gly1.5), 4.5 (Gly4.5) and 13.5 (Gly13.5) mg/kg glyphosate in the diet resulting in analysed contents of 0.01, 1,47, 3.59 and 11.6 mg per kg diet, respectively.2. There were no effects of glyphosate in diets fed to breeder hens on hatchability of fertilised eggs (0.95, 0.93, 0.91 and 0.90 for Con, Gly1.5, Gly4.5 and Gly13.5, respectively). Even though no effects of glyphosate were observed on one-day-old progeny chick quality, a post hoc analysis indicated that the navel score was best for chicks from the Con group compared to chicks from the combined Gly groups (p = 0.025). Weight gain of the chicks at 8 d of age was not affected.3. For immune competence and leukocyte subset counts in whole blood from breeder hens and one-day-old chicks, the results showed higher numbers of B-cells (p = 0.005) and monocytes (p = 0.027) as well as phagocytic activity of lymphocytes (p = 0.015). These were associated with higher glyphosate levels in peripheral blood from hens, whereas only phagocytic activity of lymphocytes was seen in chicks (p = 0.004). Total antioxidant capacity in blood plasma of hens and one-day old chicks was not affected.4. In conclusion, only some immune changes were associated in both hens and chicks with up to 11.6 mg glyphosate/kg diet fed to breeder hens.
期刊介绍：
From its first volume in 1960, British Poultry Science has been a leading international journal for poultry scientists and advisers to the poultry industry throughout the world. Over 60% of the independently refereed papers published originate outside the UK. Most typically they report the results of biological studies with an experimental approach which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: anatomy, embryology, biochemistry, biophysics, physiology, reproduction and genetics, behaviour, microbiology, endocrinology, nutrition, environmental science, food science, feeding stuffs and feeding, management and housing welfare, breeding, hatching, poultry meat and egg yields and quality.Papers that adopt a modelling approach or describe the scientific background to new equipment or apparatus directly relevant to the industry are also published. The journal also features rapid publication of Short Communications. Summaries of papers presented at the Spring Meeting of the UK Branch of the WPSA are published in British Poultry Abstracts .
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