摘要
对24头与杜洛克父本配种,妊娠70d的杂交母猪(长×大)及其所生的24窝仔猪进行试验,研究不同Fe源对妊娠母猪Fe营养状况、繁殖性能及新生仔猪Fe营养状况的影响.试验采用完全随机设计,将杂交母猪随机分为3组,分别饲喂添加80mg·kg-1Fe(源于FeSO4)的玉米—豆粕—小麦麸型饲粮(正对照组)及在正对照组饲粮基础上添加120mg·kg-1Fe(源于氨基酸Fe络合物)的饲粮(有机Fe组)和添加120mg·kg-1Fe(源于FeSO4)的饲粮(无机Fe组).结果表明:(1)有机Fe组母猪在妊娠70、90和105d时血红蛋白含量、血细胞压积、血浆Fe含量与正对照组相比无显著差异(P>0.11),有机Fe组母猪的新生窝产活仔数分别比正对照组和无机Fe组多2.4和2.5头,新生窝重分别比正对照组和无机Fe组重2.3和2.1kg,但差异均不显著(P>0.18);(2)有机Fe组新生仔猪的血红蛋白含量显著高于正对照组(P<0.005)和无机Fe组(P<0.08).表明在妊娠母猪饲粮中添加氨基酸Fe络合物有提高母猪繁殖性能的趋势,并且对改善新生仔猪Fe营养状况的效果明显优于无机Fe组.
An experiment was conducted using a total of 24 gestating sows (Landrace×Large White) and their piglets to investigate the effects of Fe sources on iron status and reproductive performance of sows, iron status of neonatal piglets. A completely randomized design was adopted. 24 sows crossbred with Duroc, which had been pregnant for 70 days, were randomly allocated to one of three treatments, and fed a cornsoybean mealwheat bran basal diet supplemented with 80 mg·kg-1 Fe as ferrous sulfate (positive control treatment, PC), the PC diet supplemented with 120 mg·kg-1 Fe as Feamino acid complex (organic Fe treatment),and the PC diet supplemented with 120 mg·kg-1 Fe as ferrous sulfate(inorganic Fe treatment), respectively. The results showed: (1) There were no differences (P>0.11) between organic Fe treatment and the positive control treatment in Hemoglobin (Hb) concentration, hematocrit and plasma Fe of gestating sows on days 70, 90, and 105, sows in organic Fe treatment bore 2.4 piglets more than sows in the positive control treatment and 2.5 piglets more than sows in inorganic Fe treatment, and total born live litter weight of sows in the organic Fe treatment was 2.3 kilogram heavier than that of sows in the positive control treatment, and 2.1 kilogram heavier than that of sows in inorganic Fe treatment, respectively, however, the difference among the treatments was not significant (P>0.18); (2) Neonatal piglets in organic Fe treatment had a higher Hb concentration than those in the positive control treatment (P<0.005) and inorganic Fe treatment (P<0.08). The results from this study indicated that the addition of the Feamino acid complex to the diets of gestating sows tended to improve the reproductive performance of sows and improved Fe status of neonatal piglets more effectively than inorganic Fe treatment.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2003年第2期230-233,共4页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
国家自然科学基金资助项目(39600107).
