论文部分内容阅读
高寒地区养猪事业有一个突出的矛盾,即气温过低,猪生长发育慢,消耗饲料多,经济效益差。怎样解决猪舍保暖问题,是摆在我们面前的重要课题。我们学习外地的经验,结合我们长期的生产实践,运用温室效应、猪体自温和地窖效应,修建一座半机械化的封闭式猪舍,投入试验性生产,经过二年时间的使用,效果较好,初步解决了高寒地区养猪温度问题。一、高原气候的特点我们大队地处海拔2980米,年平均气温2.8℃,年最高气温32.7℃,最低气温-37.2℃,地面最低气温-42.5℃。日最低气温在0℃以下天数达218天,低温寒冷期长,日温差变幅大。德令哈地区养猪的适宜气温15℃只有67天。即使在67天中也不是恒定在15℃,如八月份最高气温是31.3℃,最低气温-2.5℃;
Alpine areas have a prominent contradiction pig raising, that is, the temperature is too low, slow growth and development of pigs, consume more feed, poor economic efficiency. How to solve the problem of keeping warm pigs is an important issue before us. We learn from foreign experience, combined with our long-term production practices, the use of the greenhouse effect, the pig body temperature cellar effect from the gentle, built a semi-mechanized closed pigs, into experimental production, after two years of use, the effect is better, The initial solution to the problem of pig temperature in the alpine region. First, the characteristics of the plateau climate Our brigade is located at an elevation of 2980 meters, the annual average temperature of 2.8 ℃, the annual maximum temperature of 32.7 ℃, the lowest temperature of -37.2 ℃, the lowest surface temperature of -42.5 ℃. Day minimum temperature below 0 ℃ days up to 218 days, low temperature and cold period, day temperature fluctuation range. The suitable temperature for raising pigs in Delhi is only 67 days at 15 ℃. Even in 67 days is not constant at 15 ℃, such as August the highest temperature is 31.3 ℃, the lowest temperature -2.5 ℃;