CAJ | 학술논문

将300羽罗曼蛋鸡随机均分成3组，1组为对照组，饲以基础蛋鸡日粮；2组和3组为试验组，分别添加富硒酵母和亚硒酸钠，其剂量以硒计算，均为0.2 mg/kg。试验期为35 d。试验过程中，记录蛋鸡的生产性能，于试验的14 d和35 d采取全血测定GPX活性，于试验的14 d、28 d和35 d采取鸡蛋测定硒含量。结果表明，日粮中添加富硒酵母或亚硒酸钠对蛋鸡的生产性能均无显著影响(P＞0.05)；日粮中添加富硒酵母或亚硒酸钠均能显著提高蛋鸡全血GPX活性(P＜0.05)，而亚硒酸钠提高蛋鸡全血GPX活性的能力优于富硒酵母(P＜0.05)；日粮中添加富硒酵母或亚硒酸钠均能显著提高鸡蛋硒含量(P＜0.05)，而富硒酵母提高鸡蛋硒含量的能力优于亚硒酸钠(P＜0.05)。
장300우라만단계수궤균분성3조，1조위대조조，사이기출단계일량；2조화3조위시험조，분별첨가부서효모화아서산납，기제량이서계산，균위0.2 mg/kg。시험기위35 d。시험과정중，기록단계적생산성능，우시험적14 d화35 d채취전혈측정GPX활성，우시험적14 d、28 d화35 d채취계단측정서함량。결과표명，일량중첨가부서효모혹아서산납대단계적생산성능균무현저영향(P＞0.05)；일량중첨가부서효모혹아서산납균능현저제고단계전혈GPX활성(P＜0.05)，이아서산납제고단계전혈GPX활성적능력우우부서효모(P＜0.05)；일량중첨가부서효모혹아서산납균능현저제고계단서함량(P＜0.05)，이부서효모제고계단서함량적능력우우아서산납(P＜0.05)。
Three hundred Rohman laying hens were randomly assigned into three dietary treatment groups (one hundred per group) for a 5-week study and fed a basal diet or diets supplemented to provide 0.20 mg/kg Se from selenized yeast, sodium selenite, respectively. Production performances of layers were recorded during the whole test. Blood samples and eggs were collected during the test or at experiment termination.The results show that there are no significant difference on average laying rate, feed intake per day, egg production per day and feed/egg ratio in selenized yeast group and sodium selenite group(P> 0.05). The whole blood GPX activities in selenized yeast group and sodium selenite group were higher than that of the control group(P<0.05). However, The whole blood GPX activities in sodium selenite group were higher than that of the selenized yeast group(P<0.05). A diet supplemented with selenized yeast and sodium selenite for laying hens could increase the content of egg selenium(P<0.05). However, the content of egg selenium in selenized yeast group were higher than that of the sodium selenite group(P<0.05).