摘要
A 6-month experiment with nine dietary treatments was conducted to determine amounts of S plus Mo supplements required to maintain normal hepatic concentrations of Cu and Mo and to prevent chronic Cu toxicity in lambs fed palm kernel cake (PKC) diets. All diets consisted of PKC supplemented with minerals and vitamins, and with appropriate amounts per kg DM of S (level 0 or level 1 = 1 g) as sodium sulfate and/or Mo (level 0; level 1 = 4 mg; level 2 = 8 mg; level 3 = 16 mg; level 4 = 32 mg) as ammonium molybdate to form treatments S0Mo1, S0Mo2, S0Mo3, S0Mo4, S1Mo0, S1Mo1, S1Mo2, S1Mo3 and S1Mo4.There was no effect (P>0·05) of dietary treatments on the growth performance of the lambs. The dietary supplement of 1 g S plus 8 mg Mo per kg dietary DM (treatment S1Mo2) prevented accumulation of Cu in the liver without elevation of the concentration of Mo (P>0·05). The treatments S0Mo1, S0Mo2 and S0Mo3 increased (P < 0·05) hepatic Cu concentrations from 376 μg/g DM to between 1090 and 1294 μg/g DM. Also, the treatments S1Mo3 and S1Mo4 resulted in higher (P < 0·05) hepatic Mo concentrations compared with the treatment S1Mo0. It was concluded that the dietary supplement of 1 g S plus 8 mg Mo/kg PKC DM added to the PKC used is sufficient to maintain normal hepatic concentrations of Cu and Mo and to prevent chronic Cu toxicity in sheep fed diets containing any amount of PKC.
摘要译文
进行以确定维持正常肝脏浓度的Cu和Mo所需的S加Mo补充剂的量并防止在喂食棕榈仁蛋糕（PKC）饮食的羔羊中的慢性Cu毒性。所有饮食由补充有矿物质和维生素的PKC组成，并以适当量的每kg DM（S 0或1级\x3d 1g）作为硫酸钠和/或Mo（0级; 1级\x3d 4mg;2级\x3d 8mg; 3级\x3d 16mg;水平4 \x3d 32mg），以形成处理S0Mo1，S0Mo2，S0Mo3，S0Mo4，S1Mo0，S1Mo1，S1Mo2，S1Mo3和S1Mo4。膳食处理对羔羊生长性能没有影响（P 0·05）。每kg膳食DM（处理S1Mo2）1 g S加8 mg Mo的膳食补充剂可以防止Cu在肝脏中的积累，而不会提高Mo的浓度（P 0·05）。治疗S0Mo1，S0Mo2和S0Mo3肝脏Cu浓度从376μg/ g增加到1090〜1294μg/ g DM（P 0.05）。也，与治疗S1Mo0相比，治疗S1Mo3和S1Mo4导致肝脏Mo浓度较高（P 0.05）。添加到使用的PKC中的g S加8mg Mo / kg PKC DM足以保持Cu和Mo的正常肝脏浓度，并防止含有任何量的PKC的绵羊饲料中的慢性Cu毒性。
A. R. Alimon [(a1)]; M. Ivan [(a1)];S. Jalaludin [(a1)]. Effects of different levels of dietary sulfur and molybdenum on concentrations of copper and other elements in plasma and liver of lambs fed palm kernel cake diets[J]. British Journal of Nutrition, 2011,106(8): 1224-1230