beef cattle

肉牛
  • 文章类型: Journal Article
    这项研究是为了评估肉牛育肥的做法,营销系统,以及埃塞俄比亚西南部长凳谢科和谢卡地区的挑战。采用多阶段目的性和随机抽样程序。随机选择了384户家庭,并使用结构化问卷进行了访谈。二级数据是从地区和地区办事处收集的。使用SPSS版本20对收集的数据进行管理和分析。在P<0.05时声明有统计学差异。通过Tukey检验评估平均差异。这项研究的结果表明,研究区域中普遍存在的主要(87.5%)牛育肥系统是广泛/传统的育肥系统。在研究区域,大多数(68.5%)的育肥者更喜欢当地的牛进行育肥。身体状况是买卖肉牛的主要标准(52.3%);但是选择育肥的平均年龄为男女分别为4.51±0.082和4.84±0.089岁,分别。大多数(58.9%)的受访者每年育肥两次,表明育肥不是他们在研究领域的唯一活动。在研究区域中,每个育肥期每个家庭育肥的牛的总体平均值为3.41±0.077。然而,每个育肥期,Sheka的育肥牛数量(3.67±0.126)明显高于BenchSheko(3.14±0.089)。约81.5%的受访者决定通过考虑活重变化来完成育肥期,其余的则由预期的当前和未来价格(13.5%)和计算喂养长度(4.9%)决定。乡村市场是牛的主要买卖地(87.8%);而在研究地区,当地屠夫在购买成品肉牛中所占的份额最高(62.2%)。疾病和寄生虫是肉牛生产的严峻挑战,而需求和价格的季节性波动也挑战了营销系统。然而,肉类需求(41.7%)和环境适宜性(28.1%)的增加是研究地区肉牛生产和销售的最重要机会。因此,应通过私人和国家持有者的合作,在地区采用改进的肉牛育肥方法和以利润为导向的育肥系统。
    This study was conducted to assess beef cattle fattening practices, marketing systems, and challenges in the Bench Sheko and Sheka zones of South West Ethiopia. Multi-stage purposive and random sampling procedures were used. A total of 384 households were selected randomly and interviewed using a structured questionnaire. Secondary data were collected from zones and district offices. The collected data were managed and analyzed using SPSS version 20. Statistical differences were declared at P < 0.05. The mean difference was assessed by the Tukey test. The result of this study depicted that the major (87.5 %) cattle fattening system prevailing in the study areas was an extensive/traditional fattening system. The majority (68.5 %) of fatteners preferred local cattle for fattening in the study areas. Body condition was the major (52.3 %) criterion to buy and sell their beef cattle; but the mean ages selected for fattening were 4.51 ± 0.082 and 4.84 ± 0.089 years for male and female, respectively. The majority (58.9 %) of respondents fattened two times per year indicated that fattening was not their only activity in the study areas. The overall mean of cattle fattened per household per fattening period was 3.41 ± 0.077 in the study area. However, a significantly (P < 0.001) higher number of cattle was fattened in the Sheka (3.67 ± 0.126) than in the Bench Sheko (3.14 ± 0.089) per fattening period. About 81.5 % of respondents decided to finish the fattening period by considering live weight change but the rest decided by anticipated current and future price (13.5 %) and calculating feeding length (4.9 %). Village markets were the major (87.8 %) buying and selling place of cattle; whereas local butchers accounted for the highest share (62.2 %) in buying finished beef cattle in the study areas. Diseases and parasites were the severe challenges for beef cattle production while seasonal fluctuations of demand and price also challenged marketing systems. However, an increase in meat demand (41.7 %) and environmental suitability (28.1 %) were the most important opportunities for beef cattle production and marketing in the study areas. Therefore, improved beef cattle fattening practices and profit-oriented fattening systems should be adopted in areas through private and state holders in collaboration.
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  • 文章类型: Case Reports
    创伤性网膜炎(TR)和鼻孔梗阻是肉牛常见的消化系统疾病。在临床实践中,这两种情况通常是单独检测到的,很少同时发生。手术治疗是治疗这两种疾病的有效方法。然而,没有关于TR引起的牛的鼻孔阻塞的治疗报告。
    我们在此报道了一例罕见的妊娠晚期肉牛中TR与皱胃阻塞相关的诊断和治疗病例。受影响的牛身上有一根铁丝刺穿了网壁,但没有穿透壁;皱胃被阻塞并呈实性;胎儿在子宫内存活良好(妊娠268天)。为了在同一天拯救牛和胎儿的生命,首先进行了剖腹产,接着是瘤胃切开术,异物(电线)被移除,最后进行了开腹手术.剖腹产切除的胎儿生长良好,牛牛康复了,再次成功怀孕。
    这种情况为及时诊断提供了指导,有效治疗,以及对牛的这些消化系统疾病的术后管理,以防止进展和进一步的并发症。
    UNASSIGNED: Traumatic reticulitis (TR) and abomasal obstruction are common digestive diseases in beef cattle. In clinical practice, these two conditions are often detected alone and rarely occur at the same time. Surgical therapy is an effective approach to treat both of these diseases. However, there are no reports on the treatment of abomasal obstruction in cattle induced by TR.
    UNASSIGNED: We here report a rare case of the diagnosis and treatment of TR associated with abomasal obstruction in a beef cow during late pregnancy. The affected cattle had an iron wire that was piercing the wall of the reticulum, but did not penetrate the wall; the abomasum was blocked and appeared solid; and the fetus survived well in utero (268 days gestation). To save the lives of the cow and fetus on the same day, a cesarean section was first performed, followed by rumenotomy, the foreign body (wire) was removed, and abomasotomy was finally performed. The fetus removed by cesarean section grew well, and the beef cow recovered and successfully became pregnant again.
    UNASSIGNED: This case thus offers guidance for the timely diagnosis, effective treatment, and postoperative management of these digestive diseases in cattle to prevent progression and further complications.
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  • 文章类型: Case Reports
    牛兽医经常面对奶牛的乳头病变。与乳牛相比,奶牛对乳头病变的诊断和治疗以及临床医生之间的实践经验交流的研究数量很多。本病例报告的目的是描述奶牛乳头狭窄的成功治疗方法,并讨论可能的挑战。一头四岁的西门塔尔母牛,在她第三次哺乳和4天的牛奶中,由于左前四分之一的乳头狭窄,她和小腿一起被转诊到我们的诊所。在先前的哺乳期间,所有者反复使用刚性乳头套管来缓解狭窄。然而,母牛拒绝让当前的小牛哺乳受影响的乳头,并拒绝了主人为乳头插管的尝试。临床检查结果,超声检查,牛奶取样显示近端狭窄,中间,和左前乳头水箱的远端部分,伴有脊髓炎和胸膜炎以及轻度慢性临床乳腺炎。根据已发布的建议,脊髓炎的治疗,池炎,乳腺炎是在手术解决狭窄之前开始的。治疗的第一周包括给予含有头孢替林和泼尼松龙的乳房内产品,全身性非甾体抗炎药,蜡奶嘴,和乳头的包扎。此后,治疗减少到插入蜡乳头布吉和包扎。保守治疗导致乳腺炎的消退,池炎,乳头的近端和中部狭窄,这很可能是由主人反复插管乳头引起的。然后使用外侧镜切除远端狭窄,这是原发性病变。手术伤口愈合和肿胀消退发生在术后几天,和小牛的第一次尝试哺乳的乳头是成功的。手术后2周,母牛和小牛出院。手术后4.5个月的随访显示,小牛仍在护理乳头,手术季度正在生产正常量的牛奶。
    Bovine veterinarians are regularly confronted with teat lesions in cows. The number of studies on the diagnosis and treatment of teat lesions as well as the exchange of practical experience among clinicians are extensive in dairy cows compared with suckler cows. The aim of this case report was to describe the successful treatment of teat stenosis in a suckler cow and discuss possible challenges. A four-year-old Simmental cow, in her third lactation and 4 days in milk, was referred to our clinic along with her calf because of teat stenosis in the front left quarter. The owner had repeatedly used a rigid teat cannula in an attempt to relieve the stenosis during the previous lactation. However, the cow had refused to allow the current calf to suckle the affected teat and resisted attempts by the owner to cannulate the teat. The results of clinical examination, ultrasonography, and milk sampling showed stenosis of the proximal, middle, and distal parts of the front left teat cistern, accompanied by thelitis and cisternitis and mild chronic clinical mastitis. Based on published recommendations, treatment of the thelitis, cisternitis, and mastitis was initiated before resolution of the stenosis surgically. The first week of treatment included the administration of an intramammary product containing cefapirin and prednisolone, a systemic non-steroidal anti-inflammatory drug, a wax teat-boogie, and bandaging of the teat. Thereafter, the treatment was reduced to insertion of a wax-teat boogie and bandaging. Conservative treatment resulted in resolution of the mastitis, cisternitis, and stenosis in the proximal and middle parts of the teat, which had most likely been caused by repeated cannulation of the teat by the owner. Lateral theloscopy was then used to remove the distal stenosis, which was the primary lesion. Healing of the surgical wound and resolution of the swelling occurred several days postoperatively, and the calf\'s first attempt to suckle the teat was successful. The cow and calf were discharged from the clinic 2 weeks after surgery. A follow-up visit 4.5 months after surgery revealed that the calf was still nursing the teat and the operated quarter was producing a normal amount of milk.
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  • 文章类型: Journal Article
    Twin birth is a complex condition observed in most livestock animals, when the female gives birth to two or more offspring, generally out of the same mating. In cattle, it is a rare condition (3 to 5%) and depends on the genetic background and environmental factors. Twin birth is a result of multiple ovulations, being more common in dairy rather than in beef cattle. Calves could be monozygous or dizygous, with the same or of different sexes. When twins are born with different sexes, a sexual condition called Freemartinism occurs in between 90 to 97% of pregnancies, causing infertility in the female calf. Knowing that the twin rate is rare in commercial beef cattle, here we present an even rarer case of twin birth from two different sires after natural mating, also called heteropaternal superfecundation.
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  • 文章类型: Journal Article
    Livestock manure is one of the main sources of agricultural nonpoint source pollution and poses a great threat to the environment and human health. Sustainable management of manure via recycling is an effective means to tackle the problem. Based on field interviews in China, multiple case studies were employed to investigate alternative manure management systems. Four conclusions arose. First, compost-based systems, product-based systems, substrate-based systems, and biogas-based systems were identified as four main types of manure management systems, with each possessing its success factors and risk factors. The adoption of a system was driven by various factors. Second, market-oriented operation was the dominant operation mechanism of all the manure management systems. Third, compared to direct application of manure to croplands, all the four manure management systems could reduce nitrogen loadings from livestock farms and lower their environmental effects. Among the systems, biogas-based systems could reduce nitrogen loadings to the greatest extent, followed by product-based systems and substrate-based systems, and then by compost-based systems. Lastly, integrated management of manure with mixed recycling systems is imperative for reducing its environmental effects, which can benefit from the increasing role of third-party entities in manure recycling. Policy implications were also discussed.
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  • 文章类型: Journal Article
    Ingested soil is a major vector of organic contaminants from environment to free-ranged animals, particularly for grazing herbivores. Therefore, a better understanding of processes driving soil intake may provide new insights to limit animal exposure to contaminants and ensure safety of animal products. To maintain the supply service of livestock farming activities in contaminated areas, it is necessary to design adapted farming practices aiming at controlling the risk for human health. This study was conducted in the French West Indies, where chlordecone, an organochlorine insecticide previously used to protect banana plantation against the black weevil and banned since 1993, has polluted nearly 20% of agricultural surfaces since the 1970s. A crossover study design was performed to estimate soil intake by twelve tethered Creole young bulls according to different grazing practices. The objectives were to characterize the influence of (i) daily herbage allowance (LOW, HIGH, ADLIB: 100, 150, 300 g DM/kg BW0.75 respectively); (ii) and soil surface moisture (SSM) testing grazing on a water-saturated (HUM) vs dried (DRY) ground. The herbage offer was managed via the allocated surfaces varying the chain length as animal holders commonly do in informal Caribbean systems. The results evidenced an increase in soil intake with DHA reduction (2.1 to 3.8% of DM intake; P < 0.05) and with SSM increase (2.4 to 3.6% of DM intake; P < 0.05). Herbage offer reduction involved a closer-to-the-ground grazing with shorter post-grazing sward surface height (82.2 to 63.3 mm; P < 0.001), and both herbage offer reduction and SSM increase amplified sward soiling (measured from titanium content in unwashed herbage and image analysis). This work showed that soil intake is unavoidable even when herbage offer is very generous. The animals will significantly increase soil intake when herbage offer would be at 150 g DM/kg BW0.75 or less, especially when the grazed surface is humid.
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  • 文章类型: Journal Article
    牛的跛行是一个福利问题,与肉牛经营中的重要经济损失有关。远端指间关节(DIJ)的感染会导致严重的跛行,如果不及时治疗,预后较差。DIJ感染的诊断在该领域具有挑战性。这项研究的目的是确定与肉牛DIJ化脓性关节炎相关的因素。在这项研究中,使用了39头单脚跛行的肉牛。记录和分析病史和跛行检查数据。受影响的DIJ滑液的影像学变化和细胞学用于确定DIJ感染的存在(病例)或不存在(对照)。患足冠状动脉带的不对称肿胀和跛行评分≥4/5显着增加了肉牛诊断DIJ化脓性关节炎的几率(分别为比值比[OR]=63.2和OR=120)与无冠状动脉带不对称或跛行评分<3的牛相比,单足跛行的牛。常规跛行检查结果可用于该领域,以快速识别跛脚肉牛的DIJ感染。
    Lameness in cattle is a welfare concern and is associated with important economic losses in beef cattle operations. Infection of the distal interphalangeal joint (DIJ) results in severe lameness and if left untreated carries a poor prognosis. Diagnosis of DIJ infection is challenging in the field. The aim of this study was to determine factors associated with septic arthritis of the DIJ in beef cattle. Thirty-nine beef cattle with a complaint of single-foot lameness were used in this study. History and lameness examination data were recorded and analyzed. Radiographic changes and cytology of synovial fluid of the affected DIJ were used to define the presence (cases) or absence (controls) of DIJ infection. Asymmetric swelling at the coronary band of the affected foot and a lameness score of ≥4/5 significantly increased the odds (odds ratio [OR]=63.2 and OR=120, respectively) of diagnosis of septic arthritis of the DIJ in beef cattle with a single-foot lameness compared to cattle with no asymmetry of the coronary band or lameness scores <3. Routine lameness examination findings could be used in the field to rapidly recognize infection of the DIJ in lame beef cattle.
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