【摘要】 1986年11月～1987年4月,研究了简易开放猪舍覆盖塑料薄膜对猪冬季肥育的效果,比较了民猪、长白和长民一代杂种猪的肥育能力。结果表明:(1)简易开放猪舍覆盖一层塑料薄膜提高了棚内温度,增加了日增重,并降低了每单位增重、胴体、可食部分、脂肪和肌肉的耗料量、饲料费;(2)在北方冬季寒冷期间,长民一代杂种猪生产水平最高,其次为民猪和长白猪。民猪和长民猪对寒冷有良好适应能力。我国北方高寒地区可推广塑料薄膜覆盖简易开放猪舍,同时,应以民猪为母本,与瘦肉型公猪杂交,开展商品瘦肉型猪生产,以加速我国北方高寒地区养猪生产的发展。更多还原

【Abstract】 From 1986 to 1987,studies were made on the efficiency of open-front building covered with plastic film in the performance for finishing pigs duringwinter.The finishing performance were compared among Min,Landrace andcrossbred pigs.Results were as follows:1.Open-front building covered with plastic film increased temperatureduring building and ADG;decreased per unit feed consume of gain,carcass,eatable parts and fats.2.Under Northeast cold climate conditions,the performance of crossbredwere the most high,the following was Min and Landrace pigs.The Min and crossbred pigs were more resistant to the cold atmosphere.更多还原