文献类型：期刊文献

中文题名：亚硒酸钠和酵母硒对蛋鸭产蛋性能、蛋品质、蛋硒含量和蛋硒转化率的影响

英文题名：Effects of Sodium Selenite and Selenium Yeast on Laying Performance,Egg Quality,Egg Selenium Content and Egg Selenium Conversion Rate of Laying Ducks

作者：金永燕[1,2];郑春田[1];陈伟[1];王爽[1];夏伟光[1];刘文超[2];程镜蓉[3];张亚男[1]

机构：[1]广东省农业科学院动物科学研究所,畜禽育种国家重点实验室,农业农村部华南动物营养与饲料重点实验室,广东省动物育种与营养公共实验室,广东省畜禽育种与营养研究重点实验室,广州510640;[2]广东海洋大学滨海农业学院,湛江524000;[3]广东省农业科学院蚕业与农产品加工研究所,农业农村部功能食品重点实验室,广东省农产品加工重点实验室,广州510610

年份：2023

卷号：35

期号：3

起止页码：1622

中文期刊名：动物营养学报

外文期刊名：CHINESE JOURNAL OF ANIMAL NUTRITION

收录：CSTPCD、、CSCD2023_2024、北大核心、CSCD、北大核心2020

基金：广东省农业科学院食品营养与健康研究中心建设运行经费(XTXM 202205);国家水禽产业技术体系(CARS-42-13);国家重点研发计划(2018YFD0501504);广东省水禽产业技术创新团队(2019KJ137);广东省科协青年人才培育计划(SKXRC202213);科技部外专局项目(QNL20200130001);广州市科技计划重点项目(201904020001);广东省科技计划项目(2019A050505007);广东省农业科学院高水平科技创新战略建设专项资金(202106TD,R2017YJ-YB3005,R2021PY-QY005);广东省畜禽疫病防治研究重点研究室开放课题(YDWS202106);江门市科技计划(2020030102870009145);畜禽育种国家重点实验室开放课题(2021GZ05)。

语种：中文

中文关键词：亚硒酸钠;酵母硒;蛋硒含量;蛋硒转化率

外文关键词：sodium selenite;selenium yeast;egg selenium content;egg selenium conversion rate

中文摘要：本试验旨在研究不同水平的亚硒酸钠(SS)和酵母硒(SY)对蛋鸭产蛋性能、蛋品质、蛋硒含量和蛋硒转化率的影响,探究其在鸭蛋中的富集和消去规律。选取540只健康、产蛋性能相近的44周龄龙岩山麻蛋鸭,随机分为9组,每组6个重复,每个重复10只鸭。试验期16周,分为富集期12周和消去期4周。富集期,各组分别饲喂基础饲粮(对照组,硒含量0.15 mg/kg)及在基础饲粮中分别添加0.3、0.6、0.9和1.2 mg/kg的SS或SY(以硒计)的试验饲粮。消去期,各组均饲喂基础饲粮。结果表明:1)富集期,与对照组相比,饲粮中添加SS和SY对产蛋率、平均蛋重、日产蛋量和料蛋比均无显著影响(P>0.05),但显著提高了平均日采食量(第5~8周、第9~12周和第1~12周,P<0.05)。消去期,与对照组相比,仅饲粮中添加SY显著提高了平均日采食量(第1~2周,P<0.05)。2)与对照组相比,饲粮中添加SS和SY对蛋重、蛋形指数、蛋壳强度、蛋黄颜色、蛋壳重、蛋壳比例、蛋壳厚度均无显著影响(P>0.05),但饲粮中添加SS显著降低了蛋白高度和哈氏单位(第2、4、12周和平均值,P<0.05),饲粮中添加SY也显著降低了蛋白高度和哈氏单位(第12周和平均值,P<0.05)。3)富集期,与对照组相比,第3、7、14、28、56和84天,饲粮中添加SS和SY均显著增加了蛋硒含量(P<0.05),且SY显著高于SS(P<0.05)。消去期,与对照组相比,第3和7天,饲粮中添加SS和SY显著增加了蛋硒含量(P<0.05),且SY显著高于SS(P<0.05)。4)富集期,与对照组相比,第3、7、28和56天,饲粮中添加SS和SY显著降低了蛋硒转化率(P<0.05),且SY显著高于SS(P<0.05)。消去期,与对照组相比,第3和7天,饲粮中添加SS和SY显著提高了蛋硒转化率(P<0.05),且SY显著高于SS(P<0.05)。5)利用线性回归模型拟合蛋硒含量,得出SY的蛋硒含量在富集期第3、7、14、28、56和84天分别是SS的4.418、3.819、4.381、4.290、4.276和4.380倍,消去期第3、7、14和21天分别是SS的4.201、4.208、32.10和12.17倍。6)以硒0.3 mg/kg添加水平,饲喂3 d,蛋硒含量分别为0.50(饲粮中添加SS)和0.72 mg/kg(饲粮中添加SY)。根据中国居民不同人群每日富硒鸭蛋推荐量,建议每天鸭蛋(约65 g)的摄入量分别为0.77~2.40个(饲粮中添加SS)和0.53~1.67个(饲粮中添加SY)。综上所述,饲粮中添加0.3~1.2 mg/kg的SS和SY提高了蛋鸭的平均日采食量,但降低了蛋白高度和哈氏单位,提高了蛋硒含量。与SS相比,SY在鸭蛋中的富集速度增加,消去速度降低。SY的蛋硒含量约是SS的4倍左右,蛋硒转化率也高于SS。

外文摘要：The purpose of this study was to investigate the effects of different levels of sodium selenite(SS)and yeast selenium(SY)on laying performance,egg quality,egg selenium content and egg selenium conversion rate of laying ducks,and to explore their enrichment and elimination rules in duck eggs.A total of 540 healthy 44-week-old Longyan laying ducks with similar laying performance were randomly divided into 9 groups with 6 replicates in each group and 10 ducks in each replicate.The test period was 16 weeks,which divided into 12 weeks enrichment period and 4 weeks elimination period.In enrichment period,ducks in each group were fed the basal diet(control group,selenium content was 0.15 mg/kg)and basal diets supplemented with 0.3,0.6,0.9 and 1.2 mg/kg SS or SY(as selenium),respectively.In elimination period,ducks in each group were fed a basal diet.The results showed as follows:1)in enrichment period,compared with the control group,dietary SS and SY had no effects on egg laying rate,average egg weight,daily egg mass and feed to egg ratio(P>0.05),but significantly increased the average daily feed intake(weeks 5 to 8,weeks 9 to 12 and weeks 1 to 12,P>0.05).In elimination period,compared with the control group,only dietary SY significantly increased the average daily feed intake(weeks 1 to 12,P<0.05).2)Compared with the control group,dietary SS and SY had no effects on egg weight,egg shape index,eggshell strength,yolk color,eggshell weight,eggshell ratio and eggshell thickness(P>0.05),however,dietary SS significantly decreased the albumen height and Haugh unit(weeks 2,4,12 and mean value),and dietary SY also significantly decreased the protein height and Haugh unit(week 12 and mean value,P<0.05).3)In enrichment period,compared with the control group,on days 3,7,14,28,56 and 84,dietary SS and SY significantly increased the egg selenium content(P<0.05),and SY was significantly higher than SS(P<0.05).In elimination period,compared with the control group,on days 3 and 7,dietary SS and SY significantly increased the egg selenium content(P<0.05),and SY was significantly higher than SS(P<0.05).4)In enrichment period,compared with the control group,on days 3,7,28,and 56,dietary SS and SY significantly decreased the egg selenium conversion rate(P<0.05),and SY was significantly higher than SS(P<0.05).In elimination period,compared with the control group,on days 3 and 7,dietary SS and SY significantly increased the egg selenium conversion rate(P<0.05),and SY was significantly higher than SS(P<0.05).5)The linear regression model was used to fit the egg selenium content,the results showed that the egg selenium content of SY was 4.418,3.819,4.381,4.290,4.276 and 4.38 times of SS on days 3,7,14,28,56 and 84 days of enrichment period,respectively,and was 4.201,4.208,32.10 and 12.17 times of SS on days 3,7,14 and 21 in elimination period,respectively.6)The egg selenium contents were 0.50(dietary SS)and 0.72 mg/kg(dietary SY)at the supplemental level of 0.3 mg/kg for 3 days.According to the daily recommended amount of selenium-enriched duck eggs in different populations of Chinese residents,it was suggested that the daily intake of duck eggs(65 g)was 0.77 to 2.40(dietary SS)and 0.53 to 1.67(dietary SY),respectively.In conclusion,dietary supplementation of 0.3 to 1.2 mg/kg SS and SY increase the average daily feed intake of laying ducks,but decrease the albumen height and Haugh unit,and increase the egg selenium content.Compared with SS,the enrichment rate of SY in duck eggs increase and the elimination rate decrease.The egg selenium content of SY is about four times that of SS,and the egg selenium conversion rate is also higher than that of SS.