半开放卷帘式鸭舍冬季保温性及其对产蛋的影响研究

目的]为科学养鸭、提高鸭群产蛋性能提供试验依据。方法]以樱桃谷种鸭为试验鸭，通过在饲养试验中测定鸭舍温度和计算产蛋率评价鸭舍的保温性及其对鸭产蛋性能的影响。结果]舍外温度降至-9℃时，舍内温度仍然在1℃以上。鸭舍内外同一时间点的温度呈高度正相关，除12：00外，其他时间点的鸭舍内外温度均有极显著差异。1栋与7栋鸭舍21：00的舍外温度有显著差异。1栋和7栋鸭舍种母鸭在1月20日～2月20日间的产蛋率分别为71．88％～87．25％和70．21％～88．63％，平均产蛋率分别为80．51％和80．10％。日平均气温及21：00的气温与产蛋率呈极显著正相关。21：00时的舍温越高，鸭产蛋率越高。结论]半开放卷帘式鸭舍有一定的保温性，21：00时的舍内温度和日平均舍内温度与产蛋率呈显著正相关。

Study on the Heat Insulating Ability of Half-open Rolling-curtain Duck Shed in Winter and Its Influence on Egg Laying

Objective] The purpose was to supply experimental basis for feeding ducks scientifically and enhancing the egg laying performance of duck group. Method] With Cherry Valley ducks as tested ducks, the heat insulating ability of duck shed and its effluence on the egg laying performance of duck were evaluated through determining the temperatures of duck sheds and calculating egg laying rate in feeding experiment. Result] When the outside temperature of duck sheds was decreasing to -9 ℃, their inside temperature was still above 1 ℃. The inside and outside temperatures of duck sheds at the same time point were high positively correlated and except for 12:00, the inside and outside temperatures of duck sheds at the other time points had extremely significant difference. The outside temperatures of duck sheds in Building 1 and 7 at 21:00 had significant difference. The egg laying rates of producing female ducks of duck sheds in Building 1 and 7 in the period from Jan. 20th to Feb. 20th were 71.88%~87.25% and 70.21%~88.63% resp. and their mean egg laying rates were 80.51% and 80.10% resp. The daily mean air temperature and the air temperature at 21:00 showed extremely significantly positive correlation with egg laying rate. The higher the shed temperature at 21:00 was, the higher the egg laying rate of ducks was. Conclusion] The half-open rolling-curtain duck shed had some heat insulating ability and the inside temperature at 21:00 and the daily mean inside temperature of duck sheds had significantly positive correlation with egg laying rate.