Influence of hydrolyzable versus condensed tannins supplementation in Liaoning cashmere goats: growth performance, nitrogen metabolism, rumen fermentation, and blood metabolites.
IF 2.5 2区 农林科学Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Xin Zhu, Di Han, Lu Zhang, Tingting Su, Lisha Ye, Haiying Liu, Xingtang Dou
{"title":"Influence of hydrolyzable versus condensed tannins supplementation in Liaoning cashmere goats: growth performance, nitrogen metabolism, rumen fermentation, and blood metabolites.","authors":"Xin Zhu, Di Han, Lu Zhang, Tingting Su, Lisha Ye, Haiying Liu, Xingtang Dou","doi":"10.5713/ab.25.0367","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This study was conducted to investigate the effects of hydrolyzable versus condensed tannins on growth performance, nitrogen (N) metabolism, rumen fermentation, and blood parameters in Liaoning cashmere goats.</p><p><strong>Methods: </strong>A control diet and three experimental diets-supplemented with 0.5% chestnut tannin (CT), tannic acid (TA), or quebracho tannin (QT)-were compared.</p><p><strong>Results: </strong>Goats fed the QT diet had higher average daily gain (ADG) and average daily feed intake (ADFI) than those fed the TA diet (p<0.05). Compared to the control, the QT group exhibited lower fecal N, urine N, and total N output (g/d, p<0.05), along with higher N retention (g/d) and N utilization (g/kg N intake) than the CT and TA groups (p<0.05). The QT group had the lowest urine uric acid level, while the CT and TA groups showed lower creatinine levels than the control (p<0.05). Tannin supplementation increased rumen ammonia-N (NH3-N) concentration and reduced protozoa counts (p<0.05). Plasma concentrations of total protein, globulin, superoxide dismutase (SOD), catalase (CAT), and lysozyme were higher in the QT group than in the CT and TA groups (p<0.05).</p><p><strong>Conclusion: </strong>These results suggest that condensed tannin exerts more beneficial effects than hydrolyzable tannin on growth, N balance, and antioxidant function at equivalent dietary inclusion levels.</p>","PeriodicalId":7825,"journal":{"name":"Animal Bioscience","volume":" ","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Animal Bioscience","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.5713/ab.25.0367","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: This study was conducted to investigate the effects of hydrolyzable versus condensed tannins on growth performance, nitrogen (N) metabolism, rumen fermentation, and blood parameters in Liaoning cashmere goats.
Methods: A control diet and three experimental diets-supplemented with 0.5% chestnut tannin (CT), tannic acid (TA), or quebracho tannin (QT)-were compared.
Results: Goats fed the QT diet had higher average daily gain (ADG) and average daily feed intake (ADFI) than those fed the TA diet (p<0.05). Compared to the control, the QT group exhibited lower fecal N, urine N, and total N output (g/d, p<0.05), along with higher N retention (g/d) and N utilization (g/kg N intake) than the CT and TA groups (p<0.05). The QT group had the lowest urine uric acid level, while the CT and TA groups showed lower creatinine levels than the control (p<0.05). Tannin supplementation increased rumen ammonia-N (NH3-N) concentration and reduced protozoa counts (p<0.05). Plasma concentrations of total protein, globulin, superoxide dismutase (SOD), catalase (CAT), and lysozyme were higher in the QT group than in the CT and TA groups (p<0.05).
Conclusion: These results suggest that condensed tannin exerts more beneficial effects than hydrolyzable tannin on growth, N balance, and antioxidant function at equivalent dietary inclusion levels.