Temporal changes of fecal minerals and its implication for minerals intake of sheep grazing in saline-alkali grassland northeast of China
The enrichment of some mineral elements in halophyte growing in saline-alkali grassland increases the imbalance risks of minerals for grazing livestock.This experiment focuses on evaluation the effects of month on change of fecal minerals of sheep grazing in saline-alkali grassland, located in northeast of China.The results showed that month had highly significant effect on the content of fecal ash and minerals (P < 0.01).Calcium, Na and Mg concentrations of diet consumed by grazing sheep were adequate relative to sheep requirements during whole year;Zinc was probably marginally deficient some months in the non-growing season, Iron was excessive than sheep requirements recommended by NRC for whole year.The possibility of zinc and copper deficiencies in the context of high iron intake and persistently excessive iron intake on sheep production and health require further research.
sheep grazing mineral elements
Haixia Sun Rongzhen Zhong Minling Wang Daowei Zhou
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, Heilongjiang, 150081 P.R, China
国际会议
The 5th China-Japan-Korea Grassland Conference(第五届中-日-韩国际草地会议)
长春
英文
188-189
2014-08-20（万方平台首次上网日期，不代表论文的发表时间）