发展养牛业促进湖南农村生态经济协调发展

湖南省有着丰富的饲草、饲料资源，适合于养牛（肉牛）业的发展。山区草山产草量低、质量差，应以小群分散为主发展山地养牛业，逐步改造草山草坡，建设人工草场。丘陵平原是以开发作物秸杆氨化催肥为突破口，发展农区养牛业。养牛业的发展将有利于促进湖南农村生态经济的协调发展，使农业再上一个新台阶。     

我国饲料企业存折户管理若干问题浅析

在我国的饲料企业中,存折户结算方式已被广泛地使用。文章在简要地介绍了我国饲料企业对存折户应用概况的基础上,系统地阐述了存折户管理中存在的主要问题,并重点论证了加强饲料企业存折户管理的对策和建议。     

饲草生产学教学方法的探讨

《饲草生产学》是草业科学专业重要的选修课程。在饲草生产学教学过程中,通过构建新的课程教学体系,加强课程条件建设,改进课程教学方法和教学手段,注重实践教学环节和学生能力的培养,调动学生学习的积极性,提高了教学质量。     

山西省农牧交错区农户饲草种植意愿及影响因素分析基于Logistic 模型和两县区的调查

目的 在我国“粮改饲”背景下,山西省农牧交错区农户是否会改变传统作物而选择种植饲草作物的行为决策会受到诸多因素的影响,文章试图从影响农户饲草种植意愿因素的角度入手,探究增强农户饲草种植积极性的对策和措施。方法 该文以山西省朔州市右玉县和平鲁区为例,基于两县（区）232个样本农户的调查数据,采用Logistic回归模型对农户种植饲草意愿的影响因素进行了实证分析。结果 在所有影响农户饲草种植意愿的因素中,关键性因素是农户的受教育水平、农户对风险的偏好、生产经营的形式、种植饲草的收入、是否受到相应的技术指导、饲草的销售情况、农户对饲草价格的满意度以及对相关政策的知晓度。结论 该文认为应重视有创新精神的新型职业农民的培育;通过多种形式的土地流转,实现土地的适度规模经营,获得规模收益;重视合作社的带动和引导作用,增加饲草种植的组织化程度,降低市场风险和交易成本,提高农户的收入;做好市场调查和预测,以市场倒逼生产,实现饲草市场供需的有效衔接;多渠道加大宣传力度提高农户对政策的知晓度;以此提高农户种植饲草的积极性、促进“粮改饲”政策的顺利实施,实现“粮草兼顾、草畜平衡、农牧结合、循环发展” 的目标。     

农作物秸秆饲料加工利用技术

农作物秸秆是一种十分宝贵的生物资源。本文简述农作物秸秆的化学组成及营养价值、农作物秸秆饲料加工利用技术和提高农作物秸秆饲料利用率及营养价值的新方法。     

The effect of forage quality on predicted enteric methane production from dairy cows

The current study is aimed at determining the effect of different grass silages on enteric methane production from dairy cows and to determine the effect of changing the forage/concentrate ratio on enteric methane production. In the current study, enteric methane was not measured from animals, rather it was estimated using existing equations from the literature. Rations were formulated using six grass forages as the core for the rations. An existing model (SAC FeedByte), which simulates the physical processes based on least cost diet formulation and linear programming modelling, was used to formulate the rations. Enteric methane (/cow/day) that would be produced had a cow been fed that ration was calculated using a set of two different equations. The proportion of concentrates relative to the silage had a significant (p < 0.001) effect on enteric methane production. The results showed that high-quality silage resulted in low enteric methane emissions/litre of milk. Also, a high proportion of concentrate in the ration resulted in low amount of enteric methane produced/kg of milk. Carbon footprinting of dairy production systems should, therefore, account for the variation in forage quality.     

南部山区发展牧区水利的重要性

积极推广和发展灌溉饲草料地,成为牧区水利发展的显著特点。近年来由于水资源短缺,大部分牧草地已恶化,造成当地牧民生产、生活困难,严重影响了当地生态环境,因此必须采取必要的保护措施。     

陕西豆科木本植物资源及其利用

经调查,陕西有豆科木本植物27属,72种,6个变种,1个变型;就其用途作了总结。     

Cactus Pear as Dryland Fodder: Ambovombe Farm, Madagascar and Wellwood Farm, South Africa Compared, c.1920–1950

For over a century the pros and cons of using Opuntia species (prickly pear, cactus pear) as stock feed in arid and semi-arid regions have been debated in print. The issue remains important since pastoralism is often a major livelihood option in disadvantaged dryland areas, and any introduced plant that might enhance pastoral production could be of great value. This paper seeks to test the argument that cactus pears increase the productivity of land devoted to livestock by comparing records for their use in two historically specific locations over a thirty-year period from 1920 to 1950: a French colonial veterinary service farm in Androy, southern Madagascar and a successful Merino sheep farm in the Karoo, South Africa. It explores the different types of experiment that can be undertaken to determine impacts on livestock-rearing as well as the methodological difficulties involved. It highlights the significance of particular Opuntia species or varieties (spiny and spineless, cultivated and wild) as well as particular ecological conditions and social management systems for determining productivity impacts. It also considers the divergent historical trajectories of investigations into Opuntia productivity in Madagascar and South Africa, relating these to broader contexts.