关于阉鸡的问题

问　我经常阉鸡,但夹生和死亡(含当场死亡)都比较多,请问有何方法可避免夹生和减少死亡?(吴水才　　广西贵港市湛江镇)答　关于鸡的睾丸阉不净问题,本刊2000.16(4),已作详细解答,请你参考。至于公鸡经阉割后死亡率高乃因出血过多所致。对此我们建议:①公鸡阉割前12小时不喂料只给饮水,以减少肠道内容物,便于阉割;②公鸡阉割前两周须补喂维生素Ｋ,防止阉割时出血过多;③选择天气睛朗的日子,在明亮的地方进行阉鸡,手术完毕须关笼静养3—5天。④鸡龄应适时,一般在开啼前进行,太大、太老的公鸡睾丸较大,血管较粗,容易在阉后出血死亡关于阉鸡的问…     

防止阉鸡发生传染性喉气管炎

目前很多农户的70～90日龄阉鸡,在阉割10天后,常出现比较严重的呼吸道疾病。许多农户都在山里养鸡,互相间隔很远,认为场地很干净,不会有传染病,尤其是传喉,因此拒绝使用传喉疫苗。还有些农户在鸡已经患有呼吸道疾病时,但还照阉不误。为防止该病的发生,现提出如下建议:(1)对于养阉鸡的农户,无论是否为初次饲养,都应在30～40日龄时使用传喉疫苗进行免疫,在阉鸡前20天进行接种也可达到很好效果。(2)对于某些患有呼吸道病的鸡,应对其进行治疗,等鸡群恢复健康后再进行阉割,以免引发其他疾病。(3)山里养鸡也有很多因素可以导致传染病的传播,比如收…     

阉鸡术

阉鸡术又俗称骟鸡、(登刂)鸡、(?)鸡,或称鸡的去势。就是用外科手术摘除公鸡的睾丸,或母鸡的卵巢。凡手术完全,被阉割的公鸡叫阉公鸡,被阉割的母鸡叫阉母鸡。当然,广义来说,公火鸡、公鸭、公鹅、公鹌鹑均     

公鸡简易阉割术

公鸡阉割后具有不鸣叫，不打斗，生长快，肉质鲜嫩的特点。是提高公鸡出肉率的好方法。历来公鸡的阉割方法都是采用手术切除睾丸法，实施部位均在鸡的肷部和腹下进行切口手术阉割。这种阉鸡方法需要专制的阉鸡器具，技术难度大，养鸡户自己不易掌握，而且在阉割时易造成公鸡损伤内脏流血过多，轻者影响生长，重者造成死亡。为了解决养禽农户阉鸡技术问题，根据鸡的生理特点应用中医针灸能治病的原理，笔者实践出了两种不用刀阉鸡技术，取得了较好的效果。现总结如下：一是灸烙阉鸡术，二是饲喂中药阉割术。在公鸡的腺脂（尾脂）穴上用药物实…     

鸡阉割暴发葡萄球菌病和支原体病

1998年 1 2月 ,我市花山镇 ,王某养有公鸡 1 5 0 0只 ,80日龄阉鸡 ,阉后 3天发病 ,死亡 1 5 0多只 ,死亡率 1 0 % ;严某养有公鸡1 2 0 0只 ,85日龄阉鸡 ,阉后第 2天部分鸡开始咳嗽或喘气 ,第 3天有鸡出现死亡 ,共死亡6 0多只 ,死亡率 0 .5 % ,第 5天到本站诊治。1　症状2养殖户     

阉鸡前喂服盐酸氯丙嗪的试验效果

100日龄左右适于阉割的本地三黄鸡,在同等饲养管理条件下,请一名阉鸡师傅负责阉割,试验分两次进行。第一次待阉公鸡735只,随机分成试验和对照组,试验组375只,对照组360只,第二次待阉公鸡501只,试验组382只,对照组119只,两次试验组的公鸡都在阉割前12小时分别每只喂服广州侨光制药厂生产的盐酸氯丙嗪片二分之一片(12毫克),然后分别记录试验组和对照组     

早春养殖阉鸡技术要点

阉鸡是指将体内的睾丸摘除后的公鸡。20日龄-40日龄阉割的叫细阉,2月龄～4月龄阉割的叫大阉。阉割后的公鸡在饲养过程中性情变得温顺、育肥快、毛色鲜亮、体态美观、肉质鲜嫩,具有显著的经济效益,深受本地及广东等外地客商的欢迎,故广西很多地方有养殖阉鸡的传统习惯。     

七百弄鸡阉鸡批量饲养管理技术

七百弄鸡是国家地理标志认证的广西大化县地方土鸡品种鸡,是当地贫困群众增收脱贫致富的重要产业。为了提高养殖户养殖七百弄鸡阉鸡的成活率,本文从育雏期的饲养管理、阉割前的管理要求、阉割时的工作要求、阉割后的饲养管理、阉鸡的后期管理等方面介绍了七百弄鸡阉鸡批量饲养管理技术要点,希望对广大养殖户有所帮助。     

閹鷄技術經驗

阉鸡育肥在四川農村有着長久的歷史和習慣,善畜人員積累了丰富的阉鸡經驗,一般都能掌握阉割技術,很少發生事故。由於阉割後的鷄隻具有生長快、体型大、易肥育的特點,符合農民的經济利益,放大多數养鷄的農民均有阉鷄的習慣和要求。茲將中江縣阉畜人員座談会關於阉鸡(公鸡)技術經驗介紹如下:     

山地鸡公鸡最佳去势日龄的探讨

如果过去说信宜是“山地养鸡王国”,现在倒不如称作“山地阉鸡王国”更确切些。我市在20世纪90年代初刚兴起山地养鸡时,公(阉)鸡和项鸡(小母鸡)各占一半,项鸡饲养120天、阉鸡饲养150天后出栏。90年代后期,以肉质细嫩且香味浓郁、体型结实、羽毛色泽金黄油润、三黄(皮黄、脚黄、啄黄)美观而著称的信宜阉鸡已闻名省内外,并占领肉鸡市场的中、高档消费领域,不论是利润还是销量,阉鸡都大大胜于项鸡,促成了近几年来阉鸡在信宜养鸡业中的主导地位。据统计,2002年全市山地鸡饲养量达9263万只,出栏山地鸡公鸡最佳张俊良黎森坤宁兆绪6716万只,产值16.…     

中国饲料工业协会第五届理事会顾问、会长、常务副会长、副会长、秘书长、副秘书长、常务理事、理事名单

顾问刘中一张德邻宋瑞祥聂振邦张子仪戎易王维四会长白美清国务院原副秘书长、第四届理事会会长常务副会长(8人,以姓氏笔划为序)刘永好新希望集团董事长、第四届理事会副会长刘汉元通威股份有限公司董事长、第四届理事会副会长陈丹广东恒兴集团股份有限公司董事长、第四届理事会副会长张延喜农业部原副部长、第四届理事会副会长吴明夏湖南正虹科技发展股份有限公司董事长、第四届理事会副会长陶一山唐人神集团股份有限公司董事长、第四届理事会副会长温鹏程广东温氏食品集团有限公司董事长、第四届理事会副会长谭竹洲原化学工业部副部长、第…     

Evidence for the non-involvement of the uterus in the lifespan of the corpus luteum in the cyclic dog

Progesterone levels in peripheral blood of dogs were analysed during the cycle in which hysterectomy (n = 5) or sham surgery (n = 3) was performed as well as during the cycle of dogs (n = 5) hysterectomized at least one year prior to this study; the data were compared with the findings in control dogs (n = 3). The averages of the duration of the luteal period observed in the three experimental groups were not significantly different from those of control dogs. Immediately after surgery, the progesterone level decreased from 25 to 50% of the presurgical level, but returned to presurgical level in about four days. Prolactin levels were elevated for about 30 h after surgery. Nevertheless, the averages of the mean prolactin levels for each animal during the luteal period of the experimental groups were not significantly different from those of control dogs. It is concluded that in the dog, the uterus is not involved in the lifespan of the cyclic corpus luteum.     

The influence of the width of the saddle tree on the forces and the pressure distribution under the saddle

As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks.     

浅谈对症用药

对症用药就是通过对患病信鸽的症状进行诊断,进而确定病属,选择药物及如何用药的方法。     

军犬鉴别中的嗅源培养和易出现的问题及对策

嗅源是军犬嗅觉作业训练的依据.军犬鉴别中嗅源能力的培养在整个鉴别训练中占有重要地位,关系到鉴别训练的成败和鉴别能力的提高.所以,军犬在嗅认嗅源时必须按照训犬员的指令充分、细致地感受嗅源气味,并且对嗅源气味产生兴奋反应.如何培养军犬充分嗅认嗅源以及及时解决嗅认过程中出现的问题,成为我们进行鉴别训练的关键.……