摘要
本文就不同质量豆饼、豆粕饲喂肉仔鸡和产蛋鸡的效果以及评定豆饼、豆粕质量的化学指标进行研究。试验结果表明:生豆粕和过熟豆粕分别使21日龄肉仔鸡的增重较正常豆粕组低159和211g,饲料转换率差0.4和0.43(kg/kg)。饲喂生豆饼的母鸡与饲喂正常豆饼母鸡的产蛋率相差20％(51.8对72.2％);蛋重相差1.8克(54.7对56.5克);饲料转换率差1.21(3.94对2.73);试验期末母鸡体重相差489克(1483对1792克),饲喂生豆饼的母鸡处于减重状态。对豆饼、豆粕质量化学指标的评估表明:豆饼、粕化学指标与生产性能之间关系密切。添加适量赖氨酸有助于克服过熟豆饼和豆粕的不利影响。
The purpose of this experiment is to find out the feeding effect of raw and over-heated soybean meal expeller (SBME)and soybean meal(solvant)(SBMS),and the chemical indexes related to their quality.Three two—factorial trails have been run:two on broilers and one on layers. The results show:raw and over—heated SBM gave 159 and 211g weight gain less respectively in comparision with that from the normal SBME,F/G was 0.4 and 0.43 worse respectively.The egg production of layers fed raw SBMS was 20%(51.8-versus 72.2%)lower than that of layers fed normal one;egg weight was 8g less(54.7 versus 56.5g),F/G was 1.21 worse(3.94 versus 2.73)than those of layers fed normal SBMS.At the end of experiment hens receiving raw SBME diet were in the condition of lossing weight. It is found the performance of both broilers and layers are colsely related to the chemical indexes of SBME and SBMS,such as urease activity,trypsin inhibiter and protein solubility.Adding lysine is benificial for over—heated SBM diet.
关键词
豆饼
豆粕
赖氨酸
蛋白溶解度
尿酶活性
soybean meal(expeller)
saybean meal(solvent)
lysine
protein solubility
Urease activity
