›› 2012, Vol. 39 ›› Issue (6): 104-108.

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Effects of Diets with Different Zinc Levels on Nutrient Digestibility and Metabolism, Growth Performance and Serum Biochemical Parameters in Male Minks of Growing Period

REN Er-jun1, JIANG Qing-kui2, YANG Fu-he2, LIU Jin-jun1, CHENG Jiang-peng1   

  1. 1. Shijiazhuang Academy of Agriculture and Forestry Sciences, Shijiazhuang 050041, China;
    2. Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 132109, China
  • Online:2012-06-20 Published:2012-07-02

Abstract: Zinc methionine (Zn-Met) with levels of 0 mg/kg (group Ⅰ),15 mg/kg(group Ⅱ),30 mg/kg(group Ⅲ),45 mg/kg (group Ⅳ),60 mg/kg(group Ⅴ),75 mg/kg (group Ⅵ) and Zinc sulfate with the level of 60 mg/kg (group Ⅶ),respectively,were used to evaluate the effects of different zinc levels on male minks in the growing period. The results were as follows: feed intake and protein digestibility were significantly higher than that in other groups when zinc methionine level reached 15 mg/kg (P<0.05). Dry matter digestibility, fat digestibility, nitrogen intake, urine nitrogen, nitrogen retention, net protein utilization and biological value of protein ,BUN and LDH were not significantly affected by dietary zinc levels (P>0.05).

Key words: mink; growing period; zinc levels; digestibility and metabolism; growth performance; serum biochemical parameters

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