Comparison of the fast-induced and high dietary zinc-induced molting: trace elements dynamic in serum and eggs at different production stages in hens (Gallus domesticus).
Comparison of the fast-induced and high dietary zinc-induced molting: trace elements dynamic in serum and eggs at different production stages in hens (Gallus domesticus).
复制标题
快速诱导和高日粮锌诱导换羽的比较:不同生产阶段母鸡血清和鸡蛋中微量元素的动态(鸡内金)。
DOI:
10.1111/j.1439-0396.2007.00775.x
复制
发表时间:
2009
影响因子:
2.7
通讯作者:
A. Yousaf
中科院分区:
文献类型:
--
作者:
Muhammad Yousaf;Z. Rahman;M. Sandhu;S. Bukhari;A. Yousaf
A number of 252, 70 week old, single comb white leghorn hens at the end of their first production cycle were divided into two groups: group-I; molted by fasting and group-II; by high dietary zinc to obtain the second and third production cycle. Sampling was carried out at 5%, peak and end of the second production cycle and at 5% and peak of the third production cycle. Serum zinc decreased at the peak of the second production cycle, while increased at the 5% of the third production cycle in zinc-molted group. Serum copper and manganese increased at the 5% and peak of the second production cycle in zinc-molted group. Egg albumin zinc and copper increased at the 5% and peak of the second as well as third production cycles in zinc-molted group. Egg albumin manganese increased at 5% during the second production cycle in fasting molted group. Egg yolk zinc increased at the peak of the second production cycle in zinc-molted group. Egg yolk copper increased at the 5% of second production cycle but decreased during the third production cycle in zinc-molted group. Egg yolk manganese increased at the 5% and at the end of the second production cycle in zinc molted group. Egg yolk manganese and iron decreased during the third production cycle in zinc-molted group. Eggshell zinc decreased at the end of the second production cycle in the zinc-molted group, while eggshell copper increased at the peak of the second as well as third production cycles in fasting molted group.