关于鸽舍建设的几点建议

我从2005年开始养鸽,先后进行了五次大规模的鸽舍建设或修改。其原因有二：一种是主动的,一种是被动的（物业修整房盖）。这样做不但费时、费力、费资金,而且对于鸽子的影响也很大,有时甚至会影响整个赛季,得不偿失呀！     

张良的养鸽经验

张良是枣庄市山亭区畜牧中心退休干部。2002年利用自己的小屋养了50对内鸽，一年后净挣了10000余元，他养鸽子就像在管人管孩子，琢磨出一些挺好的办法。     

艰难赛线锻造出好鸽子

我们梧州鸽会定期举行集会．鸽友们聚在一起．或探讨交流,或闲谈说笑．既会大谈当今鸽坛的赛事,又不免想起一些养鸽旧事,于是有些鸽友因以前对鸽事无知而大笑不止,有些则因之前的挫折失败而懊悔不已,等等。而我由于入会比较迟常常坐在一旁倾听,即便插不上话内心也感到无比的愉快。     

浅谈鸽子的饲喂

喂食是养鸽过程中一项极其重要的工作,鸽友不仅要喂好鸽子,还要掌握好饲喂的技巧。首先,笔者比较赞同在每天的下午给鸽子喂食一次,且在喂食前必须清扫鸽舍,     

浅谈赛鸽的定向培养

在日常养鸽的过程中．我发现有些鸽友常常陷入一种怪圈．就是求大、求全、求全能,没有进行很好的定向培养。结果是鸽子上百只,成绩不突出．劳财伤神,效果反而不好,其原因大致有以下3个。     

对赛鸽超低归巢率的分析

从2007年起．赛鸽变得越来越难飞,特别是2009年格外难飞。无论是公棚赛还是常规赛,在天气尚好的赛况下．赛鸽在这些频繁的比赛中当日超低的归巢率令许多人深切体会到：鸽子还是那些鸽子,养鸽技巧也在不断地提高,怎么鸽子越来越不会养,或者不知道该怎么养了呢？     

养鸽的心路历程——生活的喜悦

每个人对生活都有着不同的感受,有辛酸,有快乐、有苦涩也有甘甜。对于大多数鸽友来说养鸽子已经融入了他们的生活,成为了他们日常生活的重要组成部分。在这一过程中难免会遇到一时的烦恼,当然也不乏会有一些难忘的喜悦。     

再谈科学养鸽

“科学养鸽”看上去是一个很空洞、很抽象的词,在许多鸽友眼里它也没有多少可操作性。其实不然,笔者认为科学养鸽的重点在于科学,随后才是养鸽,没有科学鸽子只能养活但不能养好。那么鸽友就要问了,何谓科学呢？辞海中的解释是：科学是人们通过不断总结和积累自己在生产和生活实践中获得的正确经验,形成符合事物内部规律并被具体实践证明为正确的理论体系。     

冠军鸽的特征

有一定经验的养鸽者都知道,只有适应飞行的鸽子才适于传宗接代。但是用手来选鸽子也是可能的．而且根本不需要经过飞行这道门槛来检测就可知其飞行能力以及是否适于传宗接代。手选的条件有很多,因此只有赛鸽具备了所有这些条件才能表明其善于飞行和作为良父良母的可能。在此我们只重点谈谈一羽冠军鸽应具备的所有优点。     

鸽子买卖中的问题

养鸽的基础在育种,而引种育鸽的前提是投资。二十多年前我刚涉足养鸽,比较舍得投资买鸽,是所在鸽圈内花钱最多的引种人之一。前些年我地又一轮养鸽热兴起,在时下鸽友经济条件出现极大分化的情况下,我依然是尽自己能力积极引鸽的养鸽人。     

芦荟对鸽病有奇效

自1999年养鸽至今,笔者每年都会因鸽子生这样或那样的疾病而感到困扰,真是让人防不胜防。一场比赛过后整棚赛鸽会突然生病,有时是因为参赛鸽带回了病毒。有时则是因赛后赛鸽体质下降．潜伏在其体内的病毒趁势而起引发鸽病。一想到这些就让人头痛不已。     

Hyperglycaemic effect of xylazine

In cats, xylazine, an analogue of clonidine, produced hyperglycaemia when injected intravenously. The effect was obtained in unanaesthetized cats and in pentobarbitone sodium anaesthesia. The hyperglycaemia was not a central effect, nor due to adrenaline release from the adrenals, nor to a direct action of xylazine on the liver. It resulted from a fall in plasma insulin produced by an action of xylazine on the pancreas, inhibiting insulin secretion without affecting glucagon secretion. The increase in the glucagon/insulin ratio, by stimulating glucose production in the liver, was probably responsible for the xylazine-induced hyperglycaemia.     

The effect of storage on the estrogenic effect of red clover silage.

Pure red clover was selected for plant estrogen analyses from the fresh fodder crops of 1972 and 1973. The investigations were made on fresh red clover and on the same red clover after periods of storage of varying length. The red clover was stored in manilla bags in a silo among the ordinary silge fodder, use being of the "green solution method" (Farmos Oy). In the studies the estrogenic effect of the fodder was ascertained by means of bioassay, the criterion being the increase in murine uterine weight. The known plant estrogens were determined by thin layer chromatography and by liquid chromatography. The estrogenic effect of the red clover silage fodder of 1972 was greater in all the silage fodder samples than it was in the fresh red clover. The quantity of individual isoflavones and "transformed" estrogen too, was greater in many of the silage fodder samples than it was in the respective fresh red clover. The estrogenic effect of the silage fodder made from the red clover of 1973 varied considerably; in some samples it was greater but in most it was smaller than the estrogen effect of the fresh red clover. However, apart from a few exceptions, the quantity of individual isoflavones and of transformed estrogens was smaller than it was the fresh red clover.     

硒的生物学作用及其对鱼类作用的研究

硒(Selenium)是一种稀有分散元素,由瑞典科学家B erzelius于1817年发现的。到19世纪30年代初,由于一些高硒(1000μg/g以上)饲料导致了动物急性中毒,医学上才开始了对硒的研究。在此后的100年间,人们主要研究硒的毒性方面的生物学效应。到20世纪40年代末,Schw arz发现某些天然物     

长效氟罗沙星和洛美沙星的药理基础与临床疗效

论述长效氟喹诺酮类药物氟罗沙星和洛美沙星的药代动力学、药效学、毒副作用、体内外抗菌作用和临床应用。氟罗沙星和洛美沙星对Ｇ＾＋菌和Ｇ＾－菌具有广谱强效抗菌作用。口服吸收良好,半衰期长、毒副作用小,临床应用于各种感染性疾病。     

Canine mammary tumours: protective effect of late ovariectomy and stimulating effect of progestins

Ovariectomy, even when performed at an advanced age, was found to be to some extent protective against mammary tumour development in dogs. Bitches treated with progestins had a slightly higher risk for mammary tumours (all types, benign and malignant) than controls. Progestin treatment did not increase the risk of mammary cancer. Benign tumours in (treated and untreated) dogs appeared earlier than malignant ones. Progestin treatment resulted in earlier appearance of both benign and malignant tumours than in controls. The ratio solitary/multiple mammary tumours was not significantly different between treated and untreated dogs.     

喀什地区安格斯牛“公司+农户”饲养模式效果分析

本文目的是研究安格斯牛“公司+农户”养殖模式效果,作者通过数据对比的方法对64户养殖农户和3个安格斯牛养殖场开展实地调查,对饲草料组成、产犊间隔、养殖成本及养殖效益进行分析对比。结果表明,喀什某公司采取公司+农户的饲养模式对养殖农户调整饲草料结构、缩短产犊间隔、增加养殖效益有显著的作用。得出“公司+农户”养殖模式下,公司需对养殖农户在各饲养阶段开展技术培训才能保障最大的养殖效益的结论。     

抗生素添加剂的负面效应

随着人们认识的不断深入,对动物性食品和环境质量的要求不断提高,抗生素饲料添加剂给养殖业带来了巨大经济效益,但是也带来了诸多的弊病,如引起内源性感染和二重感染、细胞耐药性、畜禽免疫力下降和在畜产品及环境中残留等,都对养殖业、饲料工业和动物及人类健康产生了负面影响.