武威市凉州区绿壳蛋乌骨鸡养殖现状及建议

绿壳蛋乌骨鸡是我国稀有的特禽品种,具有独特的滋补功能,是一种绿色健康的药食两用珍品.本文概述了武威市凉州区绿壳蛋乌骨鸡林下养殖现状,分析了养殖过程中存在的问题,提出了建立林下经济示范基地、培育新型经营主体、补足产业发展短板等发展绿壳蛋乌骨鸡养殖的对策.     

浅谈泰和乌骨鸡骨粉开发的前景

泰和乌骨鸡是我国特有的珍禽,由于其兼具较高的食用、药用而备受关注。但近年来少有人对其鸡骨进行具体的研究。本文对泰和乌骨鸡骨粉的开发前景进行阐述,以期对动物生产有一定参考作用。     

南涧无量山乌骨鸡保种选育实施方案

南涧无量山乌骨鸡属肉蛋兼用型地方禽类遗传资源,因其集中分布在以无量山为中心的区域而得名。无量山乌骨鸡资源独特,其肉黑、骨乌、肉质细嫩、口感好、营养价值高而深受人们的喜爱。经过多年的发展,无量山乌骨鸡现已成为南涧县特色优势产业,该鸡现存栏10万只以上。     

三安生物制剂对蛋鸡乌骨鸡肉鸡生产性能的影响

2006年1月—2011年4月,三安农业科技有限公司禽蛋项目组在全国8个省市分别建立了10个蛋鸡、乌骨鸡、肉鸡、肉杂鸡产业基地。在应用了三安生物制剂之后,取得了显著效果。例如北京顺义蓝风种鸡场,种鸡成活率提高0.66个百分点、产蛋量提高3个百分点、种蛋合格率提高0.9个百分点;浙江合兴乌骨鸡场,种鸡成活率提高0.1个百分点,平均单只3个月产蛋数量提高6.85%,3个月全群产蛋数量提高6.65%;大兴聚兴缘养殖合作社,饲养肉鸡成活率提高1个百分点(周期为47d),每kg活重节约饲料3.5%,药费节约26.67%,药费降低0.4元/只,每只活重增加3%;山东梁山养殖肉杂鸡,成活率提高1.64个百分点,平均体重增加0.045kg。     

Study on Technology of Black Silkies Chicken Semen Freezing by DMA Pellet

The aim was to explore the effects of different kinds of dilution and thawing devices on the N,N-dimethylformamide (DMA) pellet frozen semen of Black Silkies. Firstly,the motility and fertility of the frozen semen thawed by different dilutions were compared;Then,the motility of the frozen semen was compared when the pellets were thawed using different tube and different number.Finally,the motility and fertility of the sperm thawed by three kinds of thawing devices (thermostat water bath,hotfunnel and hotplate ) were tested. The results showed that:①There was similar order of the sperm motility and fertility in the different dilution groups (LR > F > B > L),and there was significant difference among those groups (P < 0.05).②The motility was the best when the frozen semen was thawed with large thin-wall glass tube at 60℃.③The best temperature range of the 3 devices was different. The highest motility for thermostat water bath was 50 to 60℃ (0.51 to 0.59),and thermostat hotfunnel was 40 to 45℃ (0.42 to 0.46),while thermostat hotplate was 50 to 55℃ (0.61 to 0.63).There was no significant difference of the motility in the optimum temperature range for each device (P > 0.05).④The fertility of the different devices in their best thawing temperature was 26.91% (55℃,thermostat hotplate),23.08% (60℃, thermostat water bath), 20.93% (40℃, thermostat funnel),respectively,and there was no significant differences among those groups (P > 0.05).Therefore,the efficiency thawing condition for the Black Silkies frozen semen was the LR diluent,DMA cryoprotectant,pellet freezing,thawed in the thermostat hotplate at 54.9℃.