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卢旺达尼亚加塔雷区养牛生产系统的现状

Current status of cattle production system in Nyagatare District-Rwanda.

作者信息

Mazimpaka Eugene, Mbuza Francis, Michael Tukei, Gatari Eugene N, Bukenya E M, James Okwee-Acai

机构信息

School of Animal Sciences and Veterinary Medicine, College of Agriculture Animal Sciences, Veterinary Medicine University, Nyagatare Campus, P.O. Box 57, Nyagatare, Rwanda.

Rwanda Management Institute, Kigali, Rwanda.

出版信息

Trop Anim Health Prod. 2017 Dec;49(8):1645-1656. doi: 10.1007/s11250-017-1372-y. Epub 2017 Aug 19.

Abstract

A study was conducted to characterize the cattle production systems in Nyagatare District, Eastern Province of Rwanda using pre-tested questionnaires, interviews with key informants as well as focus group discussions in a period of 2 months. The respondents were selected by multi-stage sampling at sector and cell levels. Based on the procedure of Krejcie and Morgan (Educational and Psychological Measurement 30:607-610, 1970) to determine the overall sample size, the result indicated that the majority (98.3%) of farms were privately owned by large families of five to seven members, and most farmers (53.9%) had only primary education. Most respondents (52.6%) were in the age bracket of 41-50 years and were mainly (48.3%) located within 3 km from trading centers. The farm size averaged 6.5 ± 0.8 ha and most farms (64.7%) were fenced except in Rukomo Sector (50%) where zero grazing prevailed. Natural pastures (savanna grass land) were the main feed resource; tethering (9%) and communal grazing had diminished. Napier grass was the main planted forage (93.2%), followed by Chloris guyana (3.1%) and Brachiara (1.2%). Leguminous forages were rarely (2.5%) reported. Vita-mineral and salt block supplements, hay, and crop residues were the predominant supplementary feed stuffs used except in Karangazi and Rwemiyaga Sectors where only vita-mineral block predominated. However, maize and rice brans were reported to be the main feed stuffs used in supplementary feeding of lactating cows. Most farmers (89.7%) reported shortage of water as most of the farmers trekked their cattle to the nearest valley dams (59.2%), rivers (21.1%), and a few 6% had water on farms. Indigenous cattle were predominant (67.03%) followed by cross-breeds (28.37%) and exotics (4.6%) while all farmers kept small ruminants. Natural breeding predominated (74.9%) and most farms (60.6%) had animal houses most of which were temporary (52.8%). The reported mean age at first calving (AFC) was highest (40.2 ± .33) for Ankole and the lowest (29.1 ± .50) months for exotic cattle. Calving interval was shorter in local breeds than 65.7 ± 3.0 in exotic. The mean dairy milk yield was lowest for Ankole cattle 2.4 ± .08 as compared to the exotics (10.42 ± .36) and their crosses (7.2 ± .34). The main challenges were diseases, shortage of water, feeds, and inadequate extension services. Same observation was reported by Okello (African Journal of Range and Forage Science 22(3), 2005) in Uganda.

摘要

在卢旺达东部省尼亚加塔雷区开展了一项为期两个月的研究,采用预先测试的问卷、与关键信息提供者的访谈以及焦点小组讨论,以描述该地区的养牛生产系统。通过在分区和小区层面进行多阶段抽样来选取受访者。根据Krejcie和Morgan(《教育与心理测量》30:607 - 610,1970)确定总体样本量的程序,结果表明,大多数(98.3%)农场为五至七口人的大家庭私有,大多数农民(53.9%)仅接受过小学教育。大多数受访者(52.6%)年龄在41至50岁之间,主要(48.3%)位于距离贸易中心3公里范围内。农场规模平均为6.5±0.8公顷,除鲁科莫分区(50%)以舍饲为主外,大多数农场(64.7%)都有围栏。天然牧场(稀树草原草地)是主要饲料资源;拴系饲养(9%)和公共放牧有所减少。象草是主要种植的草料(93.2%),其次是盖氏虎尾草(3.1%)和臂形草(1.2%)。豆科草料很少被提及(2.5%)。维生素 - 矿物质和盐块补充剂、干草和作物残渣是主要使用的补充饲料,除了卡兰加齐和鲁韦米亚加分区,那里仅以维生素 - 矿物质块为主。然而,据报告,玉米和米糠是泌乳母牛补充饲料的主要原料。大多数农民(89.7%)报告缺水,因为大多数农民会赶着牛去最近的山谷水坝(59.2%)、河流(21.1%),少数(6%)农场有水。本地牛占主导(67.03%),其次是杂交品种(28.37%)和外来品种(4.6%),所有农民都饲养小型反刍动物。自然繁殖占主导(74.9%),大多数农场(60.6%)有畜舍,其中大部分是临时的(52.8%)。据报告,安科勒牛首次产犊的平均年龄(AFC)最高(40.2±0.33),外来品种最低(29.1±0.50)个月。本地品种的产犊间隔比外来品种的65.7±3.0短。安科勒牛的平均奶牛产奶量最低,为2.4±0.08,而外来品种为(10.42±0.36),它们的杂交品种为(7.2±0.34)。主要挑战包括疾病、缺水、饲料短缺和推广服务不足。奥凯洛(《非洲牧场与饲料科学杂志》22(3),2005)在乌干达也有相同的观察结果。

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