鳄龟及其人工养殖技术

鳄龟原产于北美洲及中美洲，又叫肉龟、小鳄鱼龟，是淡水中两栖动物的位使者。目前．世界上仅存二种鳄龟（另一种是大鳄龟）。我国浙江省海宁市袁花镇名贵动物养殖场从美国引进鳄龟，饲养获得成功。鳄龟是世界上出肉率最高的龟类，出肉率一般在85％左右，最高的可达89％，它是一种高效水产经济动物，其食用率超过所有龟类。鳄龟肉味道鲜美，比甲鱼（王八）自香酥，无异味，而且营养丰富，属高蛋白、高氨基酸、低脂肪、低胆固醇、低热量食品，是高级天然食品。特别适合久病体弱、产后进补、体虚无力、贫血衰弱者食用。鳄龟长相奇特，观赏价值…     

鳄龟的人工养殖技术

鳄龟又名鳄鱼龟、肉龟、小鳄鱼龟，隶属鳄龟科、鳄龟属，原产于北美洲。1996年由浙江省海宁市两栖爬行动物研究所等单位引入我国。几年的养殖实践表明，鳄龟具有生长快、易繁殖、病害少的特点。鳄龟是著名的肉用龟类，一般出肉率可达80％；另外，鳄龟也有较高的观赏价值。     

鳄龟庭院养殖技术

鳄龟原产于美洲,20世纪80年代引入我国,由于外形奇特、出肉率高、肉味鲜美而兼具观赏、食用及药用等多重价值,且适应性强,生长快,病害少,深受养殖户喜爱。近年我国许多地方都开展了鳄龟养殖,有些家庭利用庭院或阳台进行小规模养殖,同样可以取得很好     

肉龟的人工养殖技术

肉龟原产于北美和中美洲。最近,我国浙江省海宁市袁花镇名贵动物养殖场将其引入,并试养成功。肉龟是一种繁殖率高、生长快、产肉多、营养丰富的高档鲜活水产品,其肉鲜美可口,并有食疗滋补作用,其龟甲壳有很高的药用价值。而且它还具备三个特点:一是生长快。在常温条件下,肉龟平均每年可增重550～650克,比一般龟快2倍,比生长较快的七彩龟快1倍以上。如果在28℃～31℃的温水内,生长更快,每年平均可增重1100克以上;二是出肉率高。肉龟腹部皮下除中间有占     

鹰嘴龟及其人工养殖技术

鹰嘴龟及其人工养殖技术山东东平县畜牧局郑延平鹰嘴龟是我国浙江省海宁市袁花镇名贵动物养殖场培育出的又一新奇珍品。它除了保持其他龟的所有特点外，其尾巴、龟壳、头部、眼睛、龟嘴等部位，特别是带钩的嘴与山鹰完全相似。静卧时，如不仔细察看，常误认为是只山鹰落地...     

鹦鹉龟与其人工养殖技术

鹦鹉龟是一个奇特的龟种,原生活于山区多石的浅溪中,目前自然界已濒临灭绝,大力提倡培育和人工饲养鹦鹉龟是很有必要的。最近浙江省海宁市袁花镇龙头阁动物养殖场养龟大王蒋某训养鹦鹉龟获得成功,现已大量繁殖。鹦鹉龟的尾巴较长,生有鳞甲,因其头、眼、嘴均似鹦鹉而得此名。它四肢粗壮有力,爪子锐利,前肢５爪,后肢４爪,指、趾间具蹼,能快速爬行,并能攀爬石头及树干,静蹲时面目活象一只猫头鹰注视猎物。它被激怒时常发出嘶嘶的响声,并且张开钩曲的嘴藉以自卫。如果遇到比它大的动物时,其口中突然发出吼叫声,吓走敌害。鹦鹉龟…     

丽龟人工养殖技术

丽龟属美洲龟的一个亚种,又名美丽龟。此龟观赏价值极高,其色泽非常亮丽,身上的线条特别明丽和清晰,头部几条粗纵纹金黄色,在绿底色中十分显眼;背甲边缘色泽也十分艳丽,腹部以红色为主,兼有少量斑块。常观赏丽龟,有利于消除脑力和眼睛视力疲劳,对高血压病人有稳定血压下降的作用。如在室内饲养1只或几只丽龟,对脑力劳动者和患高血压病的中老年人的健康是极为有利的。此外,丽龟还具有滋补、药用价值,其肉质鲜嫩多计,味道鲜美,     

八角龟及其人工养殖

八角龟及其人工养殖山东省东平县畜牧局郑延平八角龟是龟类中的优良品种，原产美洲、最近引进我国浙江省海宁市袁花镇名贵动物养殖场。八角龟是一种奇特的龟种。其体形长圆形，在坚硬的龟壳的前端长有八个锋利的龟角，运动起来很威风，使所有水中小动物畏惧三分。其最大的...     

Commercial crocodile farming in Botswana

A survey-based study was carried out to assess the state of crocodile farming in Botswana. A prepared, structured questionnaire was dispatched to crocodile farmers based on a directory provided by the Fisheries section of the Department of Wildlife and National Parks in the Ministry of Environment, Wildlife and National Parks. The oldest farm was established in 1986. An average of three farms have been in operation since then, all of which obtained their stock from the Okavango and Thamalakane rivers in Botswana. The current stock averages 5 419 animals as follows: breeders 4%, hatchlings 56%, and growers 40%. The average clutch size and average hatchability were 47 eggs/clutch and 67% respectively. Mortality among hatchings and growers averaged 8.3% up to 12 weeks of age. Only one farm encountered some problems with Salmonella and fungal infections of the belly. Raw skins are sold to South Africa as a result of the absence of a tannery. Crocodile farming should be encouraged in Botswana since a good market for crocodile products already exists.     

人工配合饲料饲养大口黑鲈效果研究

大口黑鲈(Micropterus salmoides)又名加州鲈、黑鲈,是一种广温性肉食性鱼类,原产于美国。自1984年引入我国以来,因其生长快、适应性强、病害少、易起捕、耐低温、肉多刺少、味道鲜美、营养丰富、肉质细嫩、外形美观等特点而深受广大生产者和消费者的欢迎。大口黑鲈素有“淡水石斑”之称。经济价值高。现已成为我国普遍养殖的淡水鱼类之一。     

犊牛人工哺乳技术及注意事项

犊牛是养殖场的重要生产材料,做好犊牛饲养管理工作,对提高犊牛成活率有很大帮助。在犊牛养殖中,母乳质量对犊牛的成活率有很大影响。犊牛出生后要确保其吃上初乳,吃足初乳,并做好人工哺乳工作,为提高犊牛生长速度,提前断奶奠定坚实基础。该文主要分析了犊牛的人工哺乳技术。     

用干蚕蛹栽培蛹虫草技术

蛹虫草又名北冬虫夏草、北虫草、蛹草,虫草属的模式种,是极具药用和滋补价值的食用菌。经现代药理、药化和临床应用研究证明,其药用成分和功效可与冬虫夏草相媲美。利用桑蚕蛹栽培的蛹虫草,全草入药,特别是其主要活性成分虫草素(3′-脱氧腺苷)、虫草酸(D-甘露醇)、虫草多糖(高度分支的甘露聚糖)等明显地高于冬虫夏草。其性平味甘,无毒副作用,具有滋肺补肾、抗疲劳、抗衰老、抗缺氧、增强人体免疫能力并有明显的雄性激素样功效,有望成为冬虫夏草的替代品。我国蚕桑生产历史悠久,蚕茧产量占世界总产量的80%,经缫丝后每年产生37.5万t干蚕蛹,目…     

Bacteremia and septic arthritis in a West African dwarf crocodile

An anorectic, adult West African dwarf crocodile was examined because of bilateral hind limb paresis. Clinical findings included multiple skin wounds, osteomyelitis of the distal portions of the right radius and ulna, severe anemia, and Serratia marcescens bacteremia. The crocodile died after a blood transfusion. At necropsy, hemorrhage in the subarachnoid space, suppurative polyarthritis, and gastric ulceration were found. Serratia marcescens and Morganella morganii were isolated from multiple tissues and body fluids. It was concluded that the bilateral paresis was caused by severe septic arthritis secondary to bacteremia, and that the crocodile died from spinal injury caused by the blood transfusion into the supravertebral vein.     

Status of the Nile crocodile population in Pongolapoort Dam after river impoundment

The major Nile crocodile Crocodylus niloticus populations in South Africa are threatened by pollution, habitat alteration/destruction, and poaching. This has highlighted the importance of other minor populations. The Phongola River Nile crocodile population was previously considered as unsubstantial. Consequently, we investigated the Nile crocodile population numbers and status and the effects of the impoundment of the Phongola River on this. In 2009–2010 we determined a minimum population number of 281 Nile crocodiles in Pongolapoort Dam using a combination of survey methods. The population structure was identified as having a minimum of 116 (41.3%) juveniles (<1.2 m total length), 31 (11.0%) subadults (1.2–2.5 m total length) and 134 (47.7%) adults (>2.5 m total length). At the commencement of the breeding season in August, crocodiles congregated at a major basking site where the main tributary entered the dam. Three major nesting areas were identified, two of which were located on the river inlet to the dam. We identified approximately 30 nesting females during the 2009/10 nesting season. Several nests were predated by the Nile monitor Varanus niloticus. There was a total recruitment failure of nests along the river inlet to the dam due to a flash flood of the Phongola River in January 2010. This preliminary study suggests that the Pongolapoort Dam Nile crocodile population has a relatively high potential reproductive output, although their annual successes may vary greatly because of loss of nesting sites as a result of water-level fluctuations and predation. It appears that the river impoundment has generally had a positive impact on this Nile crocodile population, although suitable nesting sites may become limited. Continued long-term monitoring of the Nile crocodile population in Pongolapoort Dam is required to determine if the impoundment continues to support a viable population.     

一例鳄鱼沙门氏菌与大肠杆菌混合感染的诊治

人工养殖鳄鱼,是近年来国内兴起的新兴特种动物养殖产业,养殖区域仅局限在东部沿海地区,规模也不大.对饲养管理和疫病防治的研究与经验报道不多.2007年4月上旬,我市澄海区某鳄鱼养殖场饲养2年龄的泰国鳄鱼,体重大约10kg,出现厌食、腹泻、拉黄、白稀粪的现象,该场饲养员试用多种中成药针剂注射液治疗多天,疗效不佳.该场遂于4月中旬到我所求诊.现将本次病例诊治情况报告如下.     

Paraphimosis and amputation in a Nile crocodile (Crocodylus niloticus).

A captive Nile crocodile (Crocodylus niloticus) developed recurrent episodes of paraphimosis over a 2-yr period, which eventually led to hemorrhage and obvious inflammation. Two months postsurgery, the crocodile remained clinically normal.