Selenium requirement of growing male turkeys
Selenium requirement of growing male turkeys
复制标题
DOI：
10.1080/00071660802337258
复制
发表时间：
2008-01-01
影响因子：
2
通讯作者：
Pallauf, J.
中科院分区：
文献类型：
--
作者：
Fischer, J.;Bosse, A.;Pallauf, J.
1.本实验的目的是利用不同器官和血浆中的硒浓度，并通过将肝脏和血浆中的谷胱甘肽过氧化物酶活性拟合成连续虚线来估计生长中雄火鸡的硒需要量。2.刚孵化的雄性BUT BIG 6火鸡饲喂缺硒大豆-玉米基础日粮，（硒00 - 10 mg/kg饲料）适应NRC（1994）和GfE（2004）对0 - 2周龄生长火鸡的建议（预饲）和3 ~ 5周（初饲）或基础日粮中添加010、015、020、025、030、035和040 mg硒/kg日粮（以硒酸钠计）。维生素E在所有膳食中均得到充分补充。5周后，所有组的体重（平均2568 g）超过了研究基因型的预期。然而，在接受低硒饮食的组中，饲料消耗和体重增加显着减少.硒染毒2周和5周后，血浆和各脏器中硒浓度和谷胱甘肽过氧化物酶活性均受到硒染毒的显著影响.在所研究的条件下，030 mg Se/kg饲料是快速生长的雄火鸡所必需的，以确保最大的硒积累在所检查的器官和最大的谷胱甘肽过氧化物酶活性在血浆和肝脏。
1. The aim of the experiment was to estimate the selenium requirement of growing male turkeys using the selenium concentrations in different organs and blood plasma and by fitting a continuous broken line to the activity of glutathione peroxidase in liver and plasma.2. Newly hatched male BUT BIG 6 turkeys were fed either on the selenium deficient basal soybean-maize diets (selenium 0010mg/kg diet) adapted to the NRC (1994) and GfE (2004) recommendations for growing turkeys from 0 to 2 weeks (prestarter diet) and 3 to 5 weeks (starter diet) or the basal diets supplemented with 010, 015, 020, 025, 030, 035 or 040mg selenium/kg diet as sodium selenate. Vitamin E was supplemented adequately in all diets.3. After 5 weeks the weight in all groups (mean 2568g) exceeded the expectations for the genotype investigated. Feed consumption and weight gain were however significantly reduced in the group receiving the selenium-deficient diet.4. After 2 and 5 weeks selenium concentration and activity of glutathione peroxidase in the plasma and the organs examined were greatly influenced by selenium supplementation.5. Under the conditions investigated, 030mg Se/kg diet was necessary for fast-growing male turkeys to ensure maximum selenium accumulation in the organs examined and maximum glutathione peroxidase activity in plasma and liver.