抗热应激添加剂对反季节生产马岗鹅繁殖性能的影响

为研究抗热应激添加剂和维生素Ｃ、Ｅ对反季节生产的广东鹅繁殖性能的影响，选取１１２２只正常反季节产蛋马岗鹅（♀９５４只，♂１６８只），平均分为３组，分别为维生素组（添加质量分数为0.０８％的维生素Ｃ和０.０４％的维生素Ｅ）、试验组（添加质量分数为０.４％的抗热应激添加剂）和对照组，试验共持续６０ｄ，测定各组的产蛋率、孵化率和受精率．结果表明：在整个试验阶段，维生素组和试验组的产蛋性能、受精率和孵化率均大于对照组，其中两个处理组的受精率显著高于对照组（Ｐ＜０.０５）．试验结果表明，反季节生产中抗应激添加剂和维生素Ｅ、Ｃ对降低种鹅热应激和提高繁殖性能上均具有一定效果，可以显著提高马岗鹅的受精率和产蛋波谷期间的产蛋性能，其中抗热应激添加剂的效果更好．

Effects of anti-heat stress additives on the reproductive performance of Magang goose in out-of-season production

To investigate the effects of anti-heat stress additives and vitamin E/C on the reproductive per-formance of Guangdong goose in out-of-season production，1 122 normal out-of-season egg-laying Maganggeese ( 954 female and 168 male geese) were selected，and were divided into three groups averagely，in-cluding vitamins group ( supplemented with 0. 08% vitamin C and 0. 04% E) ，test group ( supplementedwith 0. 4% anti-heat stress additives) and control group． The experiment lasted for 60 d，and the eggproduction，fertilization rate and hatching rate of each group were detected． The results showed that theegg production，fertilization rate and hatching rate in the vitamins group and the test group were higherthan those in the control group during the entire trial period，and the fertilization rate of the two treatmentgroups was significantly higher than that of the control group ( P ＜0. 05) ． The results showed that anti-heat stress additives and vitamin E/C had effects on reducing the heat stress and improving the reproduc-tive performance of goose in out-of-season production，which could significantly improve the Maganggeese fertilization rate and egg production at trough stage，and anti-heat stress additives worked better．