摘要
本试验为2~4因子试验,研究日粮中氯、镁、非植酸磷水平和不同豆饼对肉用仔公鸡生长性能、胫骨和血清中钙、磷、镁、钠、钾和血清氯离于含量以及胫骨软骨症的影响。结果表明,高氯和/或高磷的摄取导致仔鸡胫骨软骨症的高发病率,而这种高氯和/或高磷日粮诱发胫骨软骨症的作用可通过提高日粮中的镁水平来缓解,但伴随着仔鸡生长速度的降低。胫骨软骨症的高发病率与仔鸡胫骨钠,血清氯(Cl^-)含量成显著正相关(r=0.77,p<0.01;r=0.51,P<0.05)与仔鸡血清钾(K^+)含量成显著负相关(r=-0.50,P<0.05)。日粮中不同豆饼对仔鸡胫骨和血清中矿物元素含量的影响依赖于日粮中氯、镁、非植酸磷的水平,而豆饼本身对胫骨软骨症的发病率没有显著影响(P>0.05)。
A 2~4 factorial experiment was conducted to assess the effects of dietary available phosphorus (AP) , chloride (Cl) , magnesium (Mg) and soybean meals (SBM) on performance, tibial dyschondroplasia (TD) and mineral element contents in bone and Serum. Chicks fed high level of dietary Cl and/or AP had high TD lesions which were ameliorated by dietary supplementation of Mg at expense of weight gain. High incidence of TD was correlated positively with bone sodium content (r = 0.77, P<0.01) , and negatively with bone zinc content (r= -0.51, P<0.05) and serum potassium concentration (-0.50, P<0.05) . The SBM source had no effect on TD lesions.
出处
《中国畜牧杂志》
CAS
北大核心
1990年第2期5-8,37,共5页
Chinese Journal of Animal Science
