Using instalment experiment, effects of different feed formulas on gall production and nutrient digestibility with 6 about 8 years old black bear were studied.
本实验应用分期实验的方法，对6头约8岁左右的黑熊进行了两种不同饲料配方对其产胆量和消化率影响的初步研究。
Using instalment experiment, effects of different feed formulas on gall production and nutrient digestibility with 6 about 8 years old black bear were studied.
本实验应用分期实验的方法，对6头约8岁左右的黑熊进行了两种不同饲料配方对其产胆量和消化率影响的初步研究。
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