陇东绒山羊周岁母羊主要经济性状遗传力估测

试验测定周岁陇东绒山羊的主要经济性状,采用父系半同胞相关法估测了遗传力.结果表明,陇东绒山羊周岁母羊产绒量、体重、体高、体长、胸围、管围、羊绒直径、绒层高度、羊绒伸直长度的遗传力分别为0.4129、0.3871、0.3732、0.3128、0.3468、0.2873、0.4013、0.3916、0.3908,为陇东绒山羊的科研育种提供了一定的科学依据.     

蜂胶香波的加工技术

由于蜂胶具有抗菌、消炎、止痛、止痒、防腐、除臭、排除毒素、促进再生、增强SOD活性等多种作用,在化工产品中加入适量的蜂胶有利于增强它们保护皮肤、清除体表污垢、预防外在感染以及其他医疗保健功效,因而在化工行业深受欢迎。据联合国粮农组织(FAO)有关文献报道,国外蜂胶化工产品的研制和生产已有一定的历史,而且已显示出良好的发展前景。产品包括蜂胶的各种提取液,促进组织再生的药膏,含蜂胶的香波、药皂、冷膏、发膏、护肤露、面霜、面膜、牙膏、沐浴露、漱口水、脱发剂等。我国的蜂胶化工产品仍处于起步阶段。在“返璞归真”、“…     

玉米田苗后除草的冠军--玉冠

玉冠是玉米田专用的苗后除草剂,它杀草范围广,对玉米安全,又有封闭效果.玉冠防除对象为稗草、野燕麦、狗尾草、金狗尾草、马唐、牛筋草、野黍、柳叶刺蓼、酸模叶蓼、卷茎蓼、反枝苋、龙葵、香薷、水棘针、荠菜、苍耳、苘麻、鸭跖草、狼把草、风花菜、遏蓝菜、问荆、蒿属、刺儿菜、大蓟、苣荬菜等一年生杂草和多年生阔叶杂草.对藜、小藜、地肤、鼬瓣花、芦苇等有较好的药效.并且对香附子也有效果.     

解读犬患病的信号

腹泻、便秘、便血、掉毛、脱皮、瘙痒、咳嗽、打喷嚏、咬尾巴、双后肢失去知觉、流口水、蹭屁股、瘸腿、多饮多尿、无尿、不吃不喝、喘、腹胀、消瘦和肥胖等是犬常见的临床异常病症,作为犬的主人,应当了解这方面的知识,出现异常情况时及时治疗。     

伊犁地区肉牛产业链中土壤、饲料及牛肉中重金属残留分析

为了解新疆伊犁地区肉牛产业链中重金素元素的残留情况,本研究采用原子吸收法对新疆伊犁地区肉牛养殖场的土壤、饲料及屠宰场的牛肉进行重金属砷、铅、汞、铬、镉的检测。结果表明土壤样品中重金属铅、砷、汞、铬、镉元素含量分别为0.03~0.20、3.87~8.30、0.15~0.23、0.09~0.48和0.41~0.86 mg/kg。饲料样品中铅、砷、汞、铬、镉元素含量分别为3.01~18.09、75.35~94.27、19.65~24.37、0.06~1.04和1.81~8.46 μg/kg。牛肉中铅、砷、汞、铬、镉元素含量分别为0.23~0.54、1.22~7.12、0.28~0.53、0.01~0.27及0.02~0.03 μg/kg。土壤和饲料、饲料和牛肉、土壤和牛肉中重金素含量的相关系数分别是0.96、0.99、0.98。综上所述,伊犁地区肉牛养殖场的土壤和饲料,屠宰场的牛肉中重金素铅、砷、汞、铬、镉元素的含量均没有超标,三者中重金属含量具有较高的相关性。     

秋季适宜食物

主食及豆类的选择:大米、小米、玉米、荞麦、大麦、小麦、糯米、糙米、高粱、豆腐、豆浆、扁豆等。肉蛋奶的选择:羊肉、牛肉、鸭肉、鱼类、猪腰子、猪肺、鳖肉、乌骨鸡、鲍鱼、鳝鱼、蛋类、奶类等。蔬菜的选择:豆芽、菜花、菠菜、胡萝卜、茄子、莲藕、甘薯、马铃薯、山药、芋艿、芹菜、小白菜、莴笋、洋白菜、南瓜、菱角、百合、香菇等。     

诚实守信意执着 锐意创新金辉人

金辉蜂产品公司始创于1992年,经历13年的发展。公司从无到有、从小到大、从弱到强。我们始终坚持“改革创新、强化管理、质量过硬、诚实守信”的原则,以“一流的质量、一流的信誉、一流的服务”为宗旨,以“一真、二纯、三鲜”为目标,创造的金辉品牌已逐步赢得了社会各界的认可和广大消费者的青睐。公司生产蜂蜜、蜂王浆、蜂花粉、蜂胶、蜂具、蜂药、山野菜、木耳、蘑菇、人参和鹿产品10大系列200余种产品,集公司、协会、研究所、商店为一体,提供产品和蜂具加工、销售一条龙服务,共有生产车间4个,职工40余名。公司已实现产、供、销一条龙,科…     

养羊"八饲喂"效益能增倍

1.分群饲喂:羊的分群具体可分为普通羊群、杂交羊群、公羊群、母羊群、公羔群、母羔群、青年公羊群、青年母羊群、健康羊群、非健康羊群等等.在饲养过程中,按照不同的性别、年龄、生理时期的需要给予相应的饲料进行饲喂,可以大大提高饲料的利用率,迅速提高羊的增重速度和肉羊的屠宰率.     

《饲料工业》征稿启事

<正>创刊于1980年的《饲料工业》杂志是伴随着我国饲料工业的发展而诞生的,是饲料行业的"第一本期刊"、"主导期刊"。期刊面向国内外发行,是广大饲料饲养业科技人员、大专院校师生、相关行业职能部门领导及工作人员的一本不可多得的、很有价值的"参考书"。期刊由国内外专家、学者撰稿,内容覆盖饲料、饲养、动物营养、机械制造、医药化工、生物技术、化验检测等多个领域,设有专家论坛、工艺设备、生物技术、营养研究、水产养殖、饲料添加剂、饲养试验、企划纵横、试验研究、质量与安全等20多个栏目。     

几种饲料添加剂的概述

饲料添加剂的种类在我们往期的杂志中做过详细的介绍,根据现行《饲料添加剂品种目录》的规定,主要包括氨基酸、维生素、矿物元素及其络(螯)合物、酶制剂、微生物、非蛋白氮、抗氧化剂、防腐剂、防霉剂、酸度调节剂、     

Alpha‐lipoic acid: An inimitable feed supplement for poultry nutrition

Alpha‐lipoic acid (ALA) is a multifunction antioxidant that is produced in small amount by cells as well as its dietary provision facilitates fatty acid mobilization, energy expenditure as well as can scavenge free radicals in poultry birds. It exists in oxidized as well as reduced form, characterized by growth promoting, anti‐inflammatory, antioxidative, immunostimulatory, and hypocholesterolemic properties when fed as dietary supplement to farm animals particularly chicken birds. Recently, several studies reported that dietary supplementation of ALA can influence growth performance indicators, immunological, biochemical characteristics, lipid metabolism, and oxidative stress as well as increase antioxidant potential and storability of poultry meat and meat products. Accordingly, this paper adds the reviews and discusses the outcomes of studies documenting the effect of lipoic acid dietary fortification on growth performance, biochemical, and immunological characteristics as well as the effects on lipid peroxidation of fresh meat and meat‐based products. Furthermore, this paper also describes the possibilities of utilization of ALA as a feed additive in poultry nutrition to improve the growth performance of poultry as well as meat quality of resultant chicken birds.     

奶牛乳腺炎金黄色葡萄球菌新型疫苗研究进展

病原微生物感染是导致奶牛乳腺炎发生的最主要原因,其中金黄色葡萄球菌的带菌率最高。疫苗被认为是当前预防疫病传播并最终根除传染病的最有发展前景和最经济有效的方法和措施。随着基因工程、分子生物学、遗传学及免疫学等学科知识的迅猛发展,多种新型疫苗因为具有安全可靠、容易进行质量控制等优点正引起更多研究者的广泛关注,金黄色葡萄球菌新型疫苗的研究取得了长足进步,本文针对金黄色葡萄球菌新型疫苗加以综述。     

平禹一矿立井深厚表土层普通法施工技术研究

本文经过钻孔资料分析和周边矿井的调查研究、判断对比,认为虽然平禹一矿立井掘进时表土层深厚,含水层、含砂层既多又厚,涌水量大,但不会形成流砂。只要采取针对性措施如采用外壁套挂、短段掘砌、快挖快进混合作业,采用堵、降、导、排、桩等联合治水,加强支护等完全可以采用普通法施工。本文详细阐述了平禹一矿立井施工技术,为以后类似条件的井筒施工提供了先进的施工经验,有着较好的社会经济效益和推广价值。     

开菲尔粒菌相构成的研究

开菲尔乳的风味和特性与开菲尔粒的菌相组成密切相关,对来自波兰的开菲尔粒中的微生物菌相进行分离鉴定表明,该开菲尔粒主要由干酪乳杆菌(9株)、乳酸乳球菌乳酸亚种(6株)、肠膜明串珠菌右旋匍聚糖亚种(3株)、酿酒酵母(2株)以及巨大克鲁维氏酵母(5株)构成.     

The complex relationship between welfare and reproduction in cattle

Using reproduction parameters as indicators for cattle welfare has limitations and, at best, these parameters should only be viewed as indirect indicators of welfare. On a farm level, measures such as fertility rates emphasize biological performance of the herd but fail to consider the welfare of individual animals. Even on an individual level, the relationship between reproductive effectiveness and animal welfare is complex. Good reproductive performance does not automatically signify good welfare, as domestication and targeted breeding programmes have led to prioritization of high productive and reproductive performance in most modern farm animal species. In this review, we synthesize literature regarding cattle husbandry, reproduction, welfare and their multidimensional relationships. We argue that practices such as artificial insemination or the use of sexed semen may provide potential welfare advantages as these practices reduce the risk of disease transmission and injury or enable selection of specific beneficial traits. Furthermore, they may offer a solution to current practices jeopardizing welfare, such as the management of surplus bull calves in the dairy industry. Conversely, the animals’ ability to perform natural behaviours such as oestrous expression, an aspect arguably contributing to welfare, is often limited on commercial farms; this limitation is particularly evident in housing systems such as tie stalls where movement is restricted. Moreover, common management practices such as oestrus manipulation may lead to negative attitudes in citizens who often regard naturalness as important element of animal welfare.     

栀子中的营养活性物质及其组方在猪生产中的应用示例分析

文章就药食同源中草药栀子的营养活性物质及其抗菌、抗内毒素引起的炎症反应等生物活性进行了综述。并对以这些生物活性为基础的栀子示例组方及其组合效应进行了分析,旨在为新的替抗栀子饲料组学产品的研制提供新的思路。     

Control of the taeniosis/cysticercosis complex: future developments

Cysticercosis is due to the establishment of the larval stage of the zoonotic cestode parasite Taenia solium. The infection causes substantial human morbidity and mortality, particularly in several Latin American countries and parts of Africa and Asia, as well as economic losses in pig husban dry due to condemnation of infected pork meat. The life cycle of T. solium includes human beings as definitive hosts and pigs as intermediate hosts. Cysticercosis is acquired by the ingestion of eggs released by human tapeworm carriers, who become infected after ingesting pork meat contaminated with cysticerci. Taenia solium transmission has been associated with poverty, lack of sanitary services and practices of rearing backyard pigs with free access to the areas that villagers use as toilets, as well as cultural behaviour. Nonetheless, due to the recent increase of migration and tourism, industrial countries are also reporting cases of human cysticercosis. There are many epidemiological studies that have been conducted mainly in Latin American countries that have evaluated intervention measures for control of cysticercosis including the development and testing of vaccines. Furthermore, the involvement of international agencies and institutions, such as the World Health Organization, the Food and Agriculture Organization and the International Livestock Research Institute, as well as the commitment of policymakers, scientists and field workers, are key means for the sustainable control and, hopefully, eradication of T. solium infections.     

猪戊型肝炎病毒荧光定量PCR检测方法的建立及其分子流行病学

对已发表的戊型肝炎病毒(HEV)不同基因型毒株全序列进行分析,针对ORF3的保守区设计引物和探针优化建立了HEV荧光RT-PCR检测体系。分析表明该反应体系具有良好的扩增效率、特异性和稳定性,且检测灵敏度比普通RT-PCR方法高10～100倍。利用所建立的荧光定量PCR方法对采集自浙江及其周边上海、江苏等地区规模化猪场的样品以及HEV抗体阳性人血清样品进行了HEV核酸检测。其中,77份人血清样本仅有2份为HEV核酸阳性(2.6%)。而猪粪便样品阳性率则高达20.5%(56/273),且所调查的猪场均存在HEV感染。进一步的分子流行特征分析表明,浙江及周边地区的猪HEV毒株多为基因Ⅳ型,与其他地区的Ⅳ型HEV毒株同源性较高(83.4%～89.5%),但它们之间也存在较多的变异位点。猪源HEV毒株PJ-1则与多数Ⅲ型HEV毒株同源性较高(88%),进化分析也表明其为基因Ⅲ型。人血清样品中检测到的2份HEV毒株Human-1与Human-2与本地区Ⅳ型猪源毒株在分子进化关系上具有很高的亲源性,它们分布于同一分支内,而不构成独立分支。以上分析结果表明浙江及其周边地区猪HEV感染较为广泛,且以基因Ⅳ型毒株为主,但也存在...     

固始鸡不同品系及部分外来鸡种遗传多样性的微卫星分析

利用10个微卫星标记,对固始鸡5个系和4个非固始鸡品系共9个群体的等位基因频率、遗传杂合度、群体间的遗传距离等进行了分析,并根据遗传距离进行了聚类分析。结果表明:星红褐鸡与绿壳蛋鸡被聚为一类,固始鸡慢羽系与快羽系被聚为一类,固始鸡被聚为一大类,罗曼鸡自成一类,艾维茵鸡也自成一类。     

Hypertension in renal disease: diagnosis and treatment

Hypertension is a common sequela to renal disease in cats and dogs, affecting as many as 61% cats and 93% of dogs, respectively. Undiagnosed and untreated, elevations in blood pressure can have deleterious effects on the brain and heart as well as promote further renal injury. In this article, we discuss the identification of patients at risk for hypertension as well as methods for measuring blood pressure and the treatment of hypertensive patients.