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首页> 外文期刊>British Poultry Science >Growth performance and carcase quality in broiler chickens fed on bacterial protein grown on natural gas
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Growth performance and carcase quality in broiler chickens fed on bacterial protein grown on natural gas

机译：饲喂天然气中生长的细菌蛋白的肉鸡的生长性能和car体质量

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1. The effects of increasing concentrations (0, 40, 80 or 120 g/kg) of bacterial protein meal (BPM) and bacterial protein autolysate (BPA) grown on natural gas on growth performance and carcase quality in broiler chickens were examined. 2. Adding BPM to diets reduced feed intake and improved gain: feed from 0 to 21 d and overall to 35 d, but did not significantly affect weight gain compared to the soybean meal based control diet. 3. Increasing concentrations of BPA significantly reduced growth rate, feed intake, gain: feed, carcase weight and dressing percentage, but significantly increased carcase dry matter, fat and energy content. 4. Adding BPM to diets had no effect on viscosity of diets and jejunal digesta, and minor effects on litter quality, whereas BPA increased the viscosity of diets and jejunal digesta, improved litter quality at 21 d, but decreased litter quality at 32 d. 5. To conclude, broiler chickens performed better on a BPM product with intact proteins than on an autolysate with ruptured cell walls and a high content of free amino acids and low molecular-weight peptides.
机译：1.研究了在天然气上增加浓度（0、40、80或120 g / kg）的细菌蛋白粉（BPM）和细菌蛋白自溶物（BPA）对肉鸡生长性能和car体品质的影响。 2.在日粮中添加BPM可以减少采食量并改善增重：饲料从0到21天，总体上可以延长至35天，但与以豆粕为基础的对照日粮相比，并未显着影响体重增加。 3.增加BPA的浓度会显着降低生长速度，采食量，增重：饲料，car体重量和敷料百分比，但会显着增加car体干物质，脂肪和能量含量。 4.日粮中添加BPM对日粮和空肠消化物的黏度没有影响，对产仔质量的影响很小，而BPA增加日粮和空肠消化物的黏度，在21 d时产仔质量提高，而在32 d时产仔质量下降。 5.总而言之，在具有完整蛋白质的BPM产品上，肉鸡的表现要好于具有破裂细胞壁和高含量的游离氨基酸和低分子量肽的自溶物。

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