妊娠前期 meaning in Chinese

first half period of gestation
progestational period

The results of this experiment showed that the nutrition level had a certain effect on weight gain , feed conversion rate and lactation weight loss in every stage during gestation , and the effect of metabolic weight and average daily feed intake on sow ' s gestation weight gain during early days of gestation period was significant ( p < 0 . 05 )
结果表明，不同的营养水平影响到妊娠各阶段增重、日增重和料肉比以及泌乳损失，妊娠前期代谢体重、日均采食量对泌乳损失的影响显著( p < 0 . 05 ) 。