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埃塞俄比亚吉马地区部分城镇小农户奶牛养殖中饲料资源的评估及农户对饲料资源和应对饲料短缺策略的认知排名

The assessment and the farmers' perceived ranking of feed resources and coping strategies with feed scarcity in smallholder dairy farming in selected district towns of Jimma Zone, Ethiopia.

作者信息

Duguma Belay, Dermauw Veronique, Janssens Geert

机构信息

Department of Animal Science, College of Agriculture and Veterinary Medicine, Jimma University, P.O. Box 307, Jimma, Ethiopia.

Faculty of Veterinary Medicine, Laboratory of Animal Nutrition, Ghent University, Heidestraat 19, 9820, Merelbeke, Belgium.

出版信息

Trop Anim Health Prod. 2017 Jun;49(5):923-935. doi: 10.1007/s11250-017-1274-z. Epub 2017 Apr 8.

Abstract

Inadequate quantity and quality of feed resources are major constraints limiting milk production and reproductive performance of dairy cattle in Ethiopia. The aim of this study was to assess dairy cattle feed resources, feeding practices, the farmers' perceived ranking of feed resources, causes of feed shortage, and coping strategies to feed scarcity in smallholder dairy system in selected district towns of Jimma Zone, Ethiopia. Data were obtained by interviewing 52 randomly selected smallholder dairy farmers using structured questionnaires and through direct observations. Results showed that 20 main feed types used by dairy farmers were identified and categorized into natural pastures, crop residues, green feeds, hay, agro-industrial by-products, concentrate mix, and non-conventional feeds. Overall, natural pasture (mean rank = 0.453), non-conventional feeds (0.307), cut green feeds (0.086), conserved hay (0.076), crop residues (0.049), and concentrate feeds (0.029) were ranked as the main feed resources in decreasing order of importance. Natural pasture grazing (92.2% of the respondents), hay (35.6%), and green feeds (29.4%) were the most important conventional basal feeds used. Wheat bran (11.7% of the respondents) followed by commercial concentrate mix (9.4%), Noug seedcake (8.3%), grain (7.8%), and molasses (6.1%) were the concentrate supplements used. Overall, bulule-flour mill leftovers (67.2% of the farmers), bean and pea hulls (57.2%) and atella-local brew by-product (37.2%), enset (Ensete ventricosum, 34.4%), and sugarcane top (32.2%) were the non-conventional feeds available and used during feed scarcity. Barley and teff (Eragrostis teff) straws and maize and sorghum stovers were the main crop residues used in the dry seasons. Overall, 73.9, 12.2, 12.2, and 1.7% of the respondents practiced free grazing, zero grazing, semi-zero, and a combination of zero- and free-grazing systems, respectively. Over 84% of the respondents in the dry season and 50% in the wet season reported experiencing a shortage of feeds. Poor feed availability (73.9% of the respondents) was reported as the main causes of feed shortage followed by shortage of pastureland (7.8%). Increased use of bulule (55.6% of the respondents), crop residues (16.1%), non-conventional feed resources (14.4%), conserved hay (11.1%), purchased green feeds and concentrates (1.1%), and reducing herd size (1.1%) were the farmers' adopted coping strategies to mitigate feed shortage. It is suggested that technical intervention to improve the quality and efficient utilization of the existing feed resources is crucial to enable sustainable feed supply and boost milk production. Technologies that are easy to adopt, feasible, and low cost are also needed to be developed in participatory manner.

摘要

饲料资源的数量和质量不足是限制埃塞俄比亚奶牛产奶量和繁殖性能的主要因素。本研究的目的是评估埃塞俄比亚吉马地区选定城镇的小农户奶牛养殖系统中的奶牛饲料资源、饲养方式、农民对饲料资源的认知排名、饲料短缺的原因以及应对饲料短缺的策略。通过使用结构化问卷对52名随机选择的小农户奶牛养殖户进行访谈并通过直接观察来获取数据。结果表明,已确定奶农使用的20种主要饲料类型,并将其分为天然牧场、作物秸秆、青绿饲料、干草、农产品加工副产品、精料混合料和非常规饲料。总体而言,天然牧场(平均排名=0.453)、非常规饲料(0.307)、刈割的青绿饲料(0.086)、青贮干草(0.076)、作物秸秆(0.049)和精料(0.029)被列为主要饲料资源,重要性依次递减。天然牧场放牧(92.2%的受访者)、干草(35.6%)和青绿饲料(29.4%)是最重要的常用常规基础饲料。使用的精料补充料依次为麦麸(11.7%的受访者)、商业精料混合料(9.4%)、诺格籽饼(8.3%)、谷物(7.8%)和糖蜜(6.1%)。总体而言,布勒面粉厂剩余物(67.2%的农户)、豆类和豌豆壳(57.2%)以及阿泰拉当地酿造副产品(37.2%)、埃塞俄比亚蕉(埃塞俄比亚象腿蕉,34.4%)和甘蔗梢(32.2%)是饲料短缺期间可用且使用的非常规饲料。大麦和画眉草秸秆以及玉米和高粱秸秆是旱季使用的主要作物秸秆。总体而言,分别有73.9%、12.2%、12.2%和1.7%的受访者采用自由放牧、舍饲、半舍饲以及舍饲和自由放牧相结合的系统。超过84%的受访者表示旱季饲料短缺,50%的受访者表示雨季饲料短缺。饲料供应不足(73.9%的受访者)被报告为饲料短缺的主要原因,其次是牧场短缺(7.8%)。增加使用布勒(55.6%的受访者)、作物秸秆(16.1%)、非常规饲料资源(14.4%)、青贮干草(11.1%)、购买的青绿饲料和精料(1.1%)以及减少畜群规模(1.1%)是农民为缓解饲料短缺而采取的应对策略。建议进行技术干预以提高现有饲料资源的质量和有效利用率,这对于实现可持续饲料供应和提高产奶量至关重要。还需要以参与式方式开发易于采用、可行且低成本的技术。

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