CAJ | 학술논문

本试验旨在研究羟基蛋氨酸螯合锰/锌替代产蛋鸡饲粮中无机锰/锌对产蛋鸡蛋壳品质及微量元素沉积的影响. 试验采用单因子设计,共设3个组,羟基蛋氨酸螯合锰/锌分别替代基础饲粮中相应无机锰、锌水平的0、50%和100%. 每个组6个重复,每个重复10只60周龄、体重相近的海兰褐蛋鸡,试验期60 d,分为2个阶段. 结果表明:1)饲粮中不同添加形态的微量元素对产蛋率、平均蛋重、日产蛋量、料蛋比和破蛋率无显著影响( P>0.05);2)使用有机微量元素,在减少微量元素的添加量情况下,不影响蛋品质( P>0.05);3)饲粮中添加有机微量元素可以显著减少粪便中微量元素铜、锌和锰的排放量( P<0.05). 由此可见,在蛋鸡产蛋后期使用有机微量元素有提高产蛋率、日产蛋量和降低料蛋比的趋势;使用有机微量元素在减少微量元素使用量的情况下,降低了粪中微量元素的排放量.
본시험지재연구간기단안산오합맹/자체대산단계사량중무궤맹/자대산단계단각품질급미량원소침적적영향. 시험채용단인자설계,공설3개조,간기단안산오합맹/자분별체대기출사량중상응무궤맹、자수평적0、50%화100%. 매개조6개중복,매개중복10지60주령、체중상근적해란갈단계,시험기60 d,분위2개계단. 결과표명:1)사량중불동첨가형태적미량원소대산단솔、평균단중、일산단량、료단비화파단솔무현저영향( P>0.05);2)사용유궤미량원소,재감소미량원소적첨가량정황하,불영향단품질( P>0.05);3)사량중첨가유궤미량원소가이현저감소분편중미량원소동、자화맹적배방량( P<0.05). 유차가견,재단계산단후기사용유궤미량원소유제고산단솔、일산단량화강저료단비적추세;사용유궤미량원소재감소미량원소사용량적정황하,강저료분중미량원소적배방량.
This experiment was conducted to study the effects of partial replacement of inorganic [ manganese ( Mn) and zinc ( Zn) ] by methionine hydroxy analog chelated Mn/Zn ( Mn/Zn-MHA chelated) on egg shell quality and deposition of trace elements of laying hens. Three groups were arranged to investigate the effects of substituting the mixture of Mn/Zn-MHA chelated for the mixture of corresponsive inorganic trace elements with different levels of 0, 50% and 100%. A total of 180 Rohman laying hens ( 60-week-old) with similar body weight were divided into three groups randomly with six replicates per group and ten hens per replicate. The ex-periment lasted for 60 days with 2 phases. The results showed as follows:1) adding different type of trace ele-ments in diets didn' t significantly affect laying rate, average egg weight, daily egg production, feed egg ratio and the broken egg rate ( P>0.05) . 2) Using organic trace elements could reduce the dosage of trace elements, no significant difference was observed in egg quality between groups ( P>0.05) . 3) Adding organic trace ele-ments in diets could significantly reduce the fecal excretion of copper ( Cu) , Zn and Mn ( P<0.05) . In conclu-sion, it is possible that using organic trace elements in peak period can improve the laying rate, daily egg pro-duction and decrease the feed egg ratio. Moreover, Mn/Zn-MHA chelated can reduce emissions of trace ele-ments in feces with low dosage.