饲喂磺胺间甲氧嘧啶对肉鸡肌肉中蛋白质、脂肪和矿物质的影响

Effect of Feeding Sulfamonomethoxine on the Protein, Fat and Mineral Elements in Chicken

探讨饲喂磺胺间甲氧嘧啶对鸡体质量以及鸡肉中水分、蛋白质、脂肪和矿物质元素含量变化的影响规律。本实验通过对160只健康大骨鸡进行磺胺间甲氧嘧啶对照(仅饲喂基础日粮)、低、中、高剂量(0、25、200、500 mg/(kg·d))连续7 d给药,停药后16 d内采6次样,取样前对鸡进行称质量,并检测鸡肉中水分、蛋白质、脂肪和矿物质元素(铁、铜、镁、锌和钙)的含量。结果表明:停药后16 d内,低剂量组鸡体质量显著增加,蛋白质和镁元素的含量升高;中剂量组鸡体内水分、脂肪和钙元素含量显著升高,铁元素含量显著降低;高剂量组鸡体质量增加缓慢且显著低于对照组,鸡肉中蛋白质、脂肪和铁元素的含量均显著降低。

To study the effects of feeding different levels of sulfamonomethoxine （SMM） on body weight and nutrients in chicken muscle,160 healthy big bone chicken were randomly divided into four groups.One group was fed the basic diet alone and taken as control group,and the other three were daily given SMM at low,moderate and high doses （25,200 and 500 mg/（kg·d））,respectively,for 7 days consecutively.Six samplings were carried out within 16 days after the administration period.Body weight and the contents of moisture,protein,fat and minerals （iron,copper,magnesium,zinc and calcium） in chicken samples were examined.The results showed that within 16 days post-administration,the low-dose group showed a significant increase in body weight and the contents of protein and magnesium,and significant increases in the contents of moisture,fat and calcium and a significant reduction in iron content were observed for the moderate-dose group; however,the high-dose group presented significantly reduced body weight and slower body gain than the control group,and exhibited a significant decrease in the levels of protein,fat and iron in chicken.