自然霉变玉米和玉米蛋白粉对仔猪生长性能、养分表观消化率及血清酶水平的影响

doi:10.11843/j.issn.1671-7236.2015.03.012

Abstract

Abstract: An experiment was conducted to investigate the effects of naturally contaminated corn and corn gluten meal on growth performance,apparent digestibility and serum enzymes of piglets.A total of fifteen piglets (Duroc×Large White×Landrace) aged 28 days,with average weight of 9.59 kg ± 0.79 kg were randomly divided into three treatments,each treatment of five replicates of one piglet.The control group was given the basic diet,50% M and 100% M groups were given the diets in which normal corn and corn gluten meal were 50% and 100% replaced by naturally contaminated corn and corn gluten meal,respectively.The pre-experiment period lasted for 7 d,and the experiment period lasted for 15 d.The results showed as follows: ① With the increase addition ratio of naturally contaminated corn and corn gluten meal,the daily gain and daily feed intake of all piglets were decreased linearly or quadraticly (P <0.05),the daily gain in 50% M and 100% M groups was significantly reduced (P <0.05),the daily feed intake in 100% M group was significantly reduced (P <0.05) throughout the experiment.② With the increase addition ratio of naturally contaminated corn and corn gluten meal,the apparent digestibility of total energy,organic matter,dry matter,crude protein and ether extract were decreased linearly or quadraticly (P <0.05).③ With the increase addition ratio of naturally contaminated corn and corn gluten meal,the serum concentrations of AST and CK were decreased linearly or quadraticly (P <0.05),the serum concentration of ALT was increased linearly or quadraticly (P <0.05),however,the serum concentration of ALP was decreased first and then increased quadraticly (P <0.05).Therefore,under the experimental conditions,feeding naturally contaminated corn and corn gluten meal diets reduced growth performance and the apparent digestibility of total energy,organic matter,dry matter,crude protein and ether extract,resulted in a negative impact on the concentrations of serum enzymes on piglets.

Key words: piglets; growth performance; apparent digestibility; serum enzymes; mycotoxins

CLC Number:

S828

LIU Ning, YANG Zai-bin, YANG Wei-ren, JIANG Shu-zhen, ZHANG Gui-guo, YANG Ling, NIU Qun-sheng. Effects of Naturally Contaminated Corn and Corn Gluten Meal on Growth Performance, Apparent Digestibility and Serum Enzymes of Piglets[J]. , 2015, 42(3): 583-588.

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Effects of Naturally Contaminated Corn and Corn Gluten Meal on Growth Performance, Apparent Digestibility and Serum Enzymes of Piglets

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