نتایج جستجو برای: agricultural and livestock nurturing

تعداد نتایج: 16846818  

Journal: :آب و توسعه پایدار 0
عباسعلی قزل سوفلو ریحانه عظیمی

according to the reports, industrial livestock activities have most pernicious and harmful impacts on water resources quality. livestock activities include cattle breeding, animals feeding, cleaning animals resting sites, the storage of livestock manure and even abandoned places for livestock keeping impose large negative effects on water quality. such impacts stems from high density or livesto...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
William J Parton Myron P Gutmann Emily R Merchant Melannie D Hartman Paul R Adler Frederick M McNeal Susan M Lutz

The Great Plains region of the United States is an agricultural production center for the global market and, as such, an important source of greenhouse gas (GHG) emissions. This article uses historical agricultural census data and ecosystem models to estimate the magnitude of annual GHG fluxes from all agricultural sources (e.g., cropping, livestock raising, irrigation, fertilizer production, t...

Ejaz Ashraf Muhammad Luqman Muhammad Zakaria Yousuf Hussan Naveed Iftikhar Tahir Munir Butt

Rural women in Pakistan, under a small holding system of farming, play a pivotal role in farming. They actively participate in a range of activities related to crop production and livestock management. Rural women remain busy from dawn to dusk in various agricultural activities, including pre-harvest, post-harvest and livestock management. Their participation is well dispersed but less perceive...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2011
samira jeyhooni mohammad karim motamed reza movahedi hadi fathi

the aim of this study was to investigate the role of livestock cooperatives in improving economic status of animal holders in hamedan province. the study has used a surveying methodology. for gathering data a structured questionnaire was used and its reliability was calculated by cronbach's alpha test and it was (α=0.80). the research samples consisted of 300 animal holders (beef cattle breeder...

2013
Marcus Böhme

The effect of remittances on capital accumulation remains a contested topic. This paper uses a panel data set from rural Mexico to investigate the impact of remittances on agriculture and livestock investments. After controlling for the endogeneity of migration through an instrumental variable estimation our empirical results show that international migration has a significantly positive effect...

Journal: :اقتصاد و توسعه کشاورزی 0
الهام صادقی رضا مقدسی

introduction: light livestock is one of the main resources of the red meat supply. in our country, annual growth rate of light livestock production is decreased by 6.4 percent in 1383 -93. in the other words, the required input price of light livestock producing have fluctuations that have much effect on producer decisions quality. therefore, more attention to light livestock nurturing and fact...

2003
Lyubov A. Kurkalova Helen H. Jensen

A representative sample of 49 state and collective farms in Ukraine provides data in physical units on livestock and crop production and input use for 1989-92. The changes in production efficiency for beef, pork, dairy, winter wheat, grain, and potato production, investigated using stochastic frontier methods, show declining technical efficiency in livestock production and especially low margin...

1999
An-Kuo Su

An abundance of agricultural by-products have been used to feed dairy and beef cattle in Taiwan, in order to reduce the cost of livestock production. Most farmers are not concerned about the nutrient value of agricultural by-products. They need to be educated on how to utilize by-products properly. Research to improve techniques of preservation and the efficiency of utilization of agricultural ...

Journal: :Journal of animal science 1995
D M Kinsman

Raised in the livestock industry where he was born in Weymouth, Massachusetts on September 28, 1896, Loring Vinson Tirrell helped drive livestock to Brighton, the first livestock market in North America, developed to feed George Washington’s Continental Army. With such an introduction to fine livestock in an area steeped in early importations of livestock and their competitive marketing, he s...

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