The current research aimed to estimate the effect of dietary supplementation with glycinin isolated from soybeans on the growth performance, carcass traits, and selected blood metabolites of broiler chicks. A total of 200 1-wk-old broiler chicks were administered diets without glycinin (control treatment) or diets supplemented with 3 concentrations of soy glycinin (0.5, 1.0, or 1.5 g/kg of feed) for 6 wk. At the end of the feeding period, body weight was significantly higher in broiler chicks with glycinin supplementation (P < 0.05 or 0.01). The best values for body weight and body weight gain were recorded in the groups fed diets supplemented with 0.5 and 1.0 g glycinin/kg feed. Feed conversion was significantly (P < 0.05) improved in broilers in the glycinin-supplemented groups during the 1 to 6 and 3 to 6 wk growth periods. The highest value of breast yield was observed in broiler chicks supplemented with glycinin at a concentration of 1.0 g/kg of feed. Water-holding capacity increased with increasing concentrations of glycinin in the feed, up to 1.0%. Serum creatinine and urea concentrations decreased gradually (P < 0.01) as the concentration of glycinin in the feed increased. Broiler chicks receiving increasing concentrations of glycinin exhibited significantly (P < 0.01) lower levels of serum triglycerides, total cholesterol, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol. All meat samples from broiler chicks supplemented with glycinin had significantly higher catalase activities. These data suggest that feeding broiler chicks diets supplemented with soy glycinin (0.5 to 1.5 g/kg of feed) can improve feed conversion, enhance body weight gain, and lower abdominal fat.

中文翻译：

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膳食补充大豆大豆球蛋白可以改变肉鸡的生长，car体性状，血液生化指标和肉质。

当前的研究旨在评估从大豆中分离的大豆球蛋白的膳食补充对肉仔鸡生长性能，car体性状和部分血液代谢产物的影响。总共向200只1周大的肉鸡饲喂6周未添加大豆球蛋白的日粮（对照处理）或补充3种浓度大豆大豆球蛋白（0.5、1.0或1.5 g / kg饲料）的日粮。在饲喂期结束时，补充了大豆球蛋白的肉仔鸡的体重明显更高（P <0.05或0.01）。在补充了0.5和1.0 g大豆球蛋白/ kg饲料的日粮中，记录了最佳的体重和增重值。补充大豆球蛋白的群体在1至6周和3至6周生长期间，饲料转化率显着提高（P <0.05）。在补充了浓度为1.0 g / kg饲料的大豆球蛋白的肉鸡中，观察到最高的产奶量。随着饲料中大豆球蛋白浓度的增加，持水量增加，最高可达1.0％。随着饲料中大豆球蛋白浓度的增加，血清肌酐和尿素浓度逐渐降低（P <0.01）。接受增加的大豆球蛋白浓度的雏鸡的血清甘油三酸酯，总胆固醇，高密度脂蛋白胆固醇和低密度脂蛋白胆固醇水平显着降低（P <0.01）。补充了大豆球蛋白的肉鸡的所有肉样品均具有明显更高的过氧化氢酶活性。这些数据表明，饲喂补充大豆大豆球蛋白（0.5至1.5 g / kg饲料）的肉鸡日粮可以改善饲料转化率，