| 盛夏气温和日平均总辐射量对东北民猪生长肥育的影响 |
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| 引用本文： | 张天祥,孙显林.盛夏气温和日平均总辐射量对东北民猪生长肥育的影响[J].东北农业大学学报,1984(2). |
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| 作者姓名： | 张天祥 孙显林 |
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| 作者单位： | 东北农学院饲养卫生教研室，东北农学院饲养卫生教研室 |
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| 摘 要： | 予测了盛夏气温和总辐射量对敞开舍内东北民猪生长肥育的影响。予测是利用 Teter 等人提出的数学模型并作了调整之后进行的。18—26℃气温下各种体重猪的采食量和日增重均随气温升高而下降,但增重一公斤所耗饲料增加。夏季总辐射量(415—635卡/平方厘米·日)对生长肥育猪的不利影响甚于气温。415卡/平方厘米·日强度的总辐射量导致55公斤体重猪的增重水平低于45公斤体重的,65公斤体重的低于35公斤体重的。
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THE EFFECTS OF BOTH AIR TEMPERATURE AND TOTAL IRRADIANCE IN SUMMER ON GROWING FINISHING PIGS |
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| Abstract: | The effects of both the average daily air temperature and average dailytotal irradiance in summer on the growth and finish of Northeast Native pigskept in the open front building were predicted by the use of the model for pigsfrom 22 to 90 kg in weight which had been adjusted in the experiment.With the average air temperature increasing from 18 to 26℃ the feed intakeand the daily gain for pigs of various weights decreased,and the feed con-sumed for one kg of gain increased.The adverse effect of total irradiance (415-635 cal/cm~2 day) in summer ongrowing finishing pigs was larger than that of air temperature.The intensityof 415 cal/cm~2 day caused the level of gain for pigs of 55 kg in weight to belower than that for pigs of 45 kg,and the level of gain for pigs of 65 kg tobe lower than that of 35 kg. |
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