goat husbandry

  • 文章类型: Case Reports
    与鼻相关的临床表现,总结了3岁的比利布尔山羊的皮肤和全身性镰刀菌病。临床特征,治疗,在小反刍动物真菌病的现有知识的背景下,报告和讨论了验尸结果和实验室诊断。山羊主要表现为呼吸体征(吸气性呼吸困难),伴有单侧左侧粘液脓性鼻腔分泌物,多灶性可变溃疡性和坏死性皮肤结节。鼻和皮肤活检的组织病理学显示,坏死性脓性肉芽肿性炎症伴有与尖孢镰刀菌培养相关的病灶内间隔菌丝元素。患者在使用土霉素和美洛昔康治疗期间继续临床恶化,加入碘化钠和碘化钾,被人道地安乐死。尸检显示整个肾脏有多灶性结节性病变,腹部淋巴结和肺。这些病变与培养尖孢酵母的生前鉴定的病变一致。虽然治疗不成功,根据作者的知识,没有镰刀菌属的鼻面部或全身性山羊感染的实例。已经记录在兽医文献中,使其成为小反刍动物物种中这种感染形式的第一个公认实例。
    The clinical findings associated with nasal, cutaneous and systemic fusariosis in a 3-year-old billy Boer goat are summarised. The clinical features, treatment, postmortem findings and laboratory diagnostics are reported and discussed in the context of existing knowledge on mycoses of small ruminants. The goat presented primarily for respiratory signs (inspiratory dyspnoea) with unilateral left-sided mucopurulent nasal discharge, and multifocal variably ulcerative and necrotic cutaneous nodules. Histopathology of nasal and cutaneous biopsies revealed necrotising pyogranulomatous inflammation with intralesional septate hyphal elements that correlated with culture of Fusarium oxysporum. The patient continued to deteriorate clinically during treatment with oxytetracycline and meloxicam, with the addition of sodium iodide and potassium iodide, and was humanely euthanased. Postmortem examination revealed multifocal nodular lesions throughout the kidneys, abdominal lymph nodes and lungs. These lesions were consistent with those identified antemortem from which F. oxysporum was cultured. Although treatment was unsuccessful, to the author\'s knowledge, no instance of rhinofacial or systemic caprine infection with Fusarium spp. has been documented in the veterinary literature, making this the first recognised instance of this form of infection in small ruminant species.
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  • 文章类型: Journal Article
    This study was conducted to evaluate the effects of including palm kernel cake (PKC) in high-concentrate diets for feedlot goat kids on nutrient intake, digestibility, feeding behavior, nitrogen balance, blood metabolites, and performance. Thirty-two castrated crossbred Boer × mixed breed goat kids with an average age of 4 months and an initial body weight of 19.65 ± 3.00 kg were distributed in a completely randomized design. The diets included one of four levels (0, 12, 24, and 36%) of PKC on a total dry matter basis. The PKC inclusion in the diets promoted quadratic effects in the nutrient intakes (P ≤ 0.05). The digestibility of ether extract increased (P = 0.010), whereas the digestibility of non-fibrous carbohydrates decreased (P = 0.017) with the inclusion of PKC. Palm kernel cake inclusion promoted a quadratic effect on the time spent per episode feeding and decreased the times spent idling and ruminated bolus per day (P ≤ 0.05). The ingested and retained nitrogen decreased with the inclusion of PKC (P ≤ 0.05). The inclusion of PKC in the diets had quadratic effects in the cholesterol concentrations, albumin (A), globulin (G), A:G ratio, and gamma-glutamyltransferase enzyme activity (P ≤ 0.05). The PKC inclusion promoted a quadratic increase in total weight gain (P = 0.026), with the highest value achieved at the inclusion level of 11.68%. The inclusion of up to 12% PKC in high-concentrate diets increases the intake and growth performance without compromising the digestibility of nutrients and feed efficiency.
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  • 文章类型: Journal Article
    This article shows that socio-economic factors, defined here as practices, knowledge, interests, beliefs and experiences have a role in the adoption of brucellosis control strategies in the Bajío region, Mexico. We combined qualitative and quantitative methods to show that socio-economic factors with regard to goat husbandry and brucellosis control are not taken into account in the current policy to combat the disease in Mexico. Farmers ranked constraints like the price of goat milk more important than the control of the disease. The impact of brucellosis in goats is hidden to farmers, and the term brucellosis is still a strange name to them; it is better known as \'la fiebre de Malta\' (Malta fever), which farmers are aware of and which they avoid by not drinking goat milk. Brucellosis control measures cause losses such as abortion due to vaccination and ear infections due to ear tagging. In the villages of the state of Michoacán, the uptake of a vaccination and testing programme was almost complete because it was offered for free, whereas in villages of Jalisco, vaccination was not adopted thoroughly because the cost of vaccination was high for farmers and because of a lack of veterinarians offering the service. Neither compensation for culling suspected infected goats does exist nor the infrastructure, like slaughterhouses, to ensure that goats that are brucellosis seropositive are not resold to neighbouring farmers. This article disputes the idea that brucellosis is confined to the lack of awareness and participation of farmers in control measures, but rather that policies are promulgated without a good knowledge of goat husbandry and farmers\' perceptions. We claim that governmental authorities should reformulate the policy to take into account socio-economic factors shaping farmers\' behaviour so that effective control measures will be adopted by goat farmers.
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  • 文章类型: Journal Article
    Brucellosis is an endemic disease in small-scale goat husbandry systems in Mexico. It is a zoonosis and the economic consequences can be large, although estimates are not available for the Mexican goat sector. Our objective was to conduct a financial analysis of brucellosis control in a prominent dairy goat production area of the Bajío region, Mexico. We used three models: (1) a brucellosis transmission model at village flock level (n=1000 head), (2) a flock growth model at smallholder flock level (n=23 head) using output of model 1 and (3) cost-benefit analysis of several brucellosis control scenarios based on output of model 2. Scenarios consisted of test-and-slaughter or vaccination or a combination of both compared to the base situation (no control). The average net present values (NPV) of using vaccination over a 5-year period was 3.8 US$ (90% CI: 1.3-6.6) and 20 US$ (90% CI: 11.3-28.6) over a 10-year period per goat. The average benefit-cost ratios over a 5-year period and 10-year period were 4.3 US$ (90% CI: 2.2-6.9) and 12.3 US$ (90% CI: 7.5-17.3) per goat, respectively. For the total dairy goat population (38,462 head) of the study area (the Bajío of Jalisco and Michoacán) the NPV\'s over a 5-year and 10-year period were 0.15 million US$ and 0.8 million US$. However, brucellosis prevalence was predicted to remain relatively high at about 12%. Control scenarios with test-and-slaughter predicted to reduce brucellosis prevalence to less than 3%, but this produced a negative NPV over a 5-year period ranging from -31.6 to -11.1 US$ and from -31.1 to 7.5 US$ over a 10-year period. A brucellosis control campaign based on vaccination with full coverage is economically profitable for the goat dairy sector of the region although smallholders would need financial support in case test-and-slaughter is applied to reduce the prevalence more quickly.
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